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            },
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            {
              "end": "2023-01-31",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-12-07"
            },
            {
              "end": "2023-01-31",
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              "fp": "Q1",
              "form": "10-Q",
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              "frame": "CY2023Q1I"
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              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-09-01",
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            {
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              "frame": "CY2023Q3I"
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              "form": "10-K",
              "filed": "2024-03-15"
            },
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              "end": "2024-01-31",
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              "fp": "Q1",
              "form": "10-Q",
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            },
            {
              "end": "2024-01-31",
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              "form": "10-Q",
              "filed": "2024-08-30"
            },
            {
              "end": "2024-01-31",
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              "form": "10-Q",
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              "end": "2024-01-31",
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              "form": "10-K",
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              "form": "10-Q",
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              "frame": "CY2024Q1I"
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              "filed": "2024-08-30",
              "frame": "CY2024Q2I"
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              "frame": "CY2024Q3I"
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            {
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              "form": "10-K",
              "filed": "2025-03-21"
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              "accn": "0001441816-25-000118",
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              "form": "10-Q",
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            },
            {
              "end": "2025-01-31",
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              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-27"
            },
            {
              "end": "2025-01-31",
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              "accn": "0001628280-25-054768",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-12-02"
            },
            {
              "end": "2025-01-31",
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              "form": "10-K",
              "filed": "2026-03-11",
              "frame": "CY2024Q4I"
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            {
              "end": "2025-04-30",
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              "form": "10-Q",
              "filed": "2025-06-04",
              "frame": "CY2025Q1I"
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            {
              "end": "2025-07-31",
              "val": 31565000,
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              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-27",
              "frame": "CY2025Q2I"
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            {
              "end": "2025-10-31",
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              "form": "10-Q",
              "filed": "2025-12-02",
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            },
            {
              "end": "2026-01-31",
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              "fy": 2026,
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              "form": "10-K",
              "filed": "2026-03-11"
            },
            {
              "end": "2026-01-31",
              "val": 28978000,
              "accn": "0001628280-26-039150",
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              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-29",
              "frame": "CY2025Q4I"
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            {
              "end": "2026-04-30",
              "val": 26606000,
              "accn": "0001628280-26-039150",
              "fy": 2027,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-29",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDue": {
        "label": "Operating Leases, Future Minimum Payments Due",
        "description": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "units": {
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              "end": "2017-10-31",
              "val": 22784000,
              "accn": "0001441816-17-000010",
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              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 107960000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 15915000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 15915000,
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              "fy": 2020,
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              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 15915000,
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              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 15915000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
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              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 15915000,
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              "fy": 2020,
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              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueCurrent": {
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2018-01-31",
              "val": 8420000,
              "accn": "0001441816-18-000028",
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              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 4578000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 4578000,
              "accn": "0001441816-19-000109",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 4578000,
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              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 4578000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 4578000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 1523000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 9630000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 922000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 922000,
              "accn": "0001441816-19-000109",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 922000,
              "accn": "0001441816-19-000187",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 922000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 922000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 2823000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 9658000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 2224000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 2224000,
              "accn": "0001441816-19-000109",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 2224000,
              "accn": "0001441816-19-000187",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 2224000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 2224000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 2879000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 10930000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 2277000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 2277000,
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              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 2277000,
              "accn": "0001441816-19-000187",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 2277000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 2277000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 8235000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 6641000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 3765000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 3765000,
              "accn": "0001441816-19-000109",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 3765000,
              "accn": "0001441816-19-000187",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 3765000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 3765000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueThereafter": {
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 4902000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 62681000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 2149000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 2149000,
              "accn": "0001441816-19-000109",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
              "val": 2149000,
              "accn": "0001441816-19-000187",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
              "val": 2149000,
              "accn": "0001441816-19-000242",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 2149000,
              "accn": "0001441816-20-000067",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear": {
        "label": "Operating Leases, Future Minimum Payments, Remainder of Fiscal Year",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2017-10-31",
              "val": 2422000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            }
          ]
        }
      },
      "OperatingLeasesRentExpenseMinimumRentals": {
        "label": "Operating Leases, Rent Expense, Minimum Rentals",
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        "units": {
          "USD": [
            {
              "start": "2017-12-01",
              "end": "2017-12-31",
              "val": 87900000,
              "accn": "0001441816-18-000028",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "start": "2017-12-01",
              "end": "2017-12-31",
              "val": 87300000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
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            }
          ]
        }
      },
      "OperatingLeaseWeightedAverageDiscountRatePercent": {
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "description": "Weighted average discount rate for operating lease calculated at point in time.",
        "units": {
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              "accn": "0001441816-19-000109",
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              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-04-30",
              "val": 0.061,
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              "form": "10-Q",
              "filed": "2020-06-05",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-07-31",
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              "accn": "0001441816-19-000187",
              "fy": 2020,
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              "filed": "2019-09-05"
            },
            {
              "end": "2019-07-31",
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              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-09-03",
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              "end": "2019-10-31",
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              "fy": 2020,
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              "filed": "2019-12-10"
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              "form": "10-Q",
              "filed": "2020-09-03"
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            {
              "end": "2021-01-31",
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              "filed": "2022-03-18",
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            {
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            },
            {
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            },
            {
              "end": "2021-10-31",
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              "form": "10-Q",
              "filed": "2022-12-08",
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            },
            {
              "end": "2022-01-31",
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              "form": "10-K",
              "filed": "2022-03-18"
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              "end": "2022-01-31",
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              "form": "10-K",
              "filed": "2023-03-17",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-04-30",
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              "end": "2022-04-30",
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              "form": "10-Q",
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            },
            {
              "end": "2022-07-31",
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              "form": "10-Q",
              "filed": "2022-09-02"
            },
            {
              "end": "2022-07-31",
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              "accn": "0001441816-23-000168",
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            },
            {
              "end": "2022-10-31",
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              "form": "10-Q",
              "filed": "2022-12-08"
            },
            {
              "end": "2022-10-31",
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              "accn": "0001441816-23-000248",
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              "form": "10-Q",
              "filed": "2023-12-07",
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            },
            {
              "end": "2023-01-31",
              "val": 0.06,
              "accn": "0001441816-23-000027",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-03-17"
            },
            {
              "end": "2023-01-31",
              "val": 0.06,
              "accn": "0001441816-24-000049",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-03-15",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-04-30",
              "val": 0.056,
              "accn": "0001441816-23-000087",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-06-02",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-07-31",
              "val": 0.057,
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              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-09-01",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-10-31",
              "val": 0.057,
              "accn": "0001441816-23-000248",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-12-07",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2024-01-31",
              "val": 0.057,
              "accn": "0001441816-24-000049",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-03-15"
            },
            {
              "end": "2024-01-31",
              "val": 0.057,
              "accn": "0001441816-25-000057",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-03-21",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2025-01-31",
              "val": 0.052,
              "accn": "0001441816-25-000057",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-03-21"
            },
            {
              "end": "2025-01-31",
              "val": 0.052,
              "accn": "0001628280-26-016799",
              "fy": 2026,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-03-11",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2026-01-31",
              "val": 0.052,
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              "fy": 2026,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-03-11",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OtherAssetsNoncurrent": {
        "label": "Other Assets, Noncurrent",
        "description": "Amount of noncurrent assets classified as other.",
        "units": {
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              "accn": "0001441816-17-000010",
              "fy": 2018,
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              "form": "10-Q",
              "filed": "2017-12-15"
            },
            {
              "end": "2017-01-31",
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              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-10-31",
              "val": 7056000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
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              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "end": "2018-01-31",
              "val": 8436000,
              "accn": "0001441816-18-000053",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-06-07"
            },
            {
              "end": "2018-01-31",
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              "accn": "0001441816-18-000087",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-09-07"
            },
            {
              "end": "2018-01-31",
              "val": 8436000,
              "accn": "0001441816-18-000140",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-12-06"
            },
            {
              "end": "2018-01-31",
              "val": 22352000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-04-30",
              "val": 7744000,
              "accn": "0001441816-18-000053",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-06-07",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-07-31",
              "val": 6665000,
              "accn": "0001441816-18-000087",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-09-07",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-10-31",
              "val": 6649000,
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              "fy": 2019,
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              "form": "10-Q",
              "filed": "2018-12-06",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2019-01-31",
              "val": 34611000,
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              "fy": 2019,
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              "form": "10-K",
              "filed": "2019-04-01"
            },
            {
              "end": "2019-01-31",
              "val": 34611000,
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              "form": "10-Q",
              "filed": "2019-06-07"
            },
            {
              "end": "2019-01-31",
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              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05"
            },
            {
              "end": "2019-01-31",
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              "form": "10-Q",
              "filed": "2019-12-10"
            },
            {
              "end": "2019-01-31",
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              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-04-30",
              "val": 36511000,
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              "fy": 2020,
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              "form": "10-Q",
              "filed": "2019-06-07",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-07-31",
              "val": 39414000,
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              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-09-05",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-10-31",
              "val": 43123000,
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              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-12-10",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2020-01-31",
              "val": 54684000,
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              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-03-27"
            },
            {
              "end": "2020-01-31",
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              "form": "10-Q",
              "filed": "2020-06-05"
            },
            {
              "end": "2020-01-31",
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              "form": "10-Q",
              "filed": "2020-09-03"
            },
            {
              "end": "2020-01-31",
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              "form": "10-Q",
              "filed": "2020-12-09"
            },
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              "end": "2020-01-31",
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              "filed": "2021-03-22",
              "frame": "CY2019Q4I"
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            {
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            },
            {
              "end": "2020-07-31",
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              "form": "10-Q",
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            },
            {
              "end": "2020-10-31",
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              "form": "10-Q",
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            },
            {
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              "form": "10-Q",
              "filed": "2021-06-04"
            },
            {
              "end": "2021-01-31",
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              "accn": "0001441816-21-000192",
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              "form": "10-Q",
              "filed": "2021-09-03"
            },
            {
              "end": "2021-01-31",
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              "form": "10-Q",
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            },
            {
              "end": "2021-01-31",
              "val": 85555000,
              "accn": "0001441816-22-000059",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-03-18",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-04-30",
              "val": 89406000,
              "accn": "0001441816-21-000095",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-06-04",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-07-31",
              "val": 96487000,
              "accn": "0001441816-21-000192",
              "fy": 2022,
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              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
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            {
              "end": "2018-01-31",
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              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2019-01-31",
              "val": 0,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2020-01-31",
              "val": 0,
              "accn": "0001441816-21-000051",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-03-22",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2021-01-31",
              "val": 4714000,
              "accn": "0001441816-21-000051",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-03-22"
            },
            {
              "end": "2021-01-31",
              "val": 4714000,
              "accn": "0001441816-21-000095",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-06-04"
            },
            {
              "end": "2021-01-31",
              "val": 4714000,
              "accn": "0001441816-21-000192",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-09-03"
            },
            {
              "end": "2021-01-31",
              "val": 4714000,
              "accn": "0001441816-21-000242",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-12-08"
            },
            {
              "end": "2021-01-31",
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              "accn": "0001441816-22-000059",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-03-18",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-04-30",
              "val": 0,
              "accn": "0001441816-21-000095",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-06-04",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-07-31",
              "val": 0,
              "accn": "0001441816-21-000192",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-09-03",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-10-31",
              "val": 0,
              "accn": "0001441816-21-000242",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-12-08",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2022-01-31",
              "val": 0,
              "accn": "0001441816-22-000059",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-03-18",
              "frame": "CY2021Q4I"
            }
          ]
        }
      },
      "TemporaryEquityEliminationAsPartofReorganization": {
        "label": "Temporary Equity, Elimination as Part of Reorganization",
        "description": "Redemption of temporary equity as the result of a triggering event associated with the temporary equity.",
        "units": {
          "USD": [
            {
              "start": "2017-02-01",
              "end": "2017-10-31",
              "val": 346428000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15"
            },
            {
              "start": "2017-10-01",
              "end": "2017-10-31",
              "val": 346400000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15"
            },
            {
              "start": "2017-10-01",
              "end": "2017-10-31",
              "val": 346400000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q3I"
            },
            {
              "start": "2017-02-01",
              "end": "2018-01-31",
              "val": 346428000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "start": "2017-02-01",
              "end": "2018-01-31",
              "val": 346428000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2017"
            }
          ]
        }
      },
      "TemporaryEquityLiquidationPreference": {
        "label": "Temporary Equity, Liquidation Preference",
        "description": "The aggregate liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.",
        "units": {
          "USD": [
            {
              "end": "2017-01-31",
              "val": 345997,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2018-01-31",
              "val": 0,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            }
          ]
        }
      },
      "TemporaryEquityParOrStatedValuePerShare": {
        "label": "Temporary Equity, Par or Stated Value Per Share",
        "description": "Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.",
        "units": {
          "USD/shares": [
            {
              "end": "2017-01-31",
              "val": 0.001,
              "accn": "0001441816-18-000028",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2018-01-31",
              "val": 0.001,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            }
          ]
        }
      },
      "TemporaryEquitySharesAuthorized": {
        "label": "Temporary Equity, Shares Authorized",
        "description": "The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.",
        "units": {
          "shares": [
            {
              "end": "2017-01-31",
              "val": 41234841,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
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              "frame": "CY2016Q4I"
            },
            {
              "end": "2018-01-31",
              "val": 0,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            }
          ]
        }
      },
      "TemporaryEquitySharesIssued": {
        "label": "Temporary Equity, Shares Issued",
        "description": "The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.",
        "units": {
          "shares": [
            {
              "end": "2017-01-31",
              "val": 41148282,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
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              "val": 0,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017Q4I"
            }
          ]
        }
      },
      "TemporaryEquitySharesOutstanding": {
        "label": "Temporary Equity, Shares Outstanding",
        "description": "The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.",
        "units": {
          "shares": [
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              "end": "2015-01-31",
              "val": 39055497,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2016-01-31",
              "val": 39055497,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "end": "2016-01-31",
              "val": 39055497,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2017-01-31",
              "val": 41148282,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15"
            },
            {
              "end": "2017-01-31",
              "val": 41148282,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "end": "2017-01-31",
              "val": 41148282,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-10-31",
              "val": 0,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-01-31",
              "val": 0,
              "accn": "0001441816-18-000028",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "end": "2018-01-31",
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              "accn": "0001441816-19-000067",
              "fy": 2019,
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              "form": "10-K",
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              "val": 0,
              "accn": "0001441816-19-000067",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "TemporaryEquityStockIssuedDuringPeriodValueNewIssues": {
        "label": "Temporary Equity, Stock Issued During Period, Value, New Issues",
        "description": "Value of new stock classified as temporary equity issued during the period.",
        "units": {
          "USD": [
            {
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              "end": "2017-01-31",
              "val": 34942000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30"
            },
            {
              "start": "2016-02-01",
              "end": "2017-01-31",
              "val": 34942000,
              "accn": "0001441816-19-000067",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-04-01",
              "frame": "CY2016"
            },
            {
              "start": "2017-02-01",
              "end": "2017-10-31",
              "val": 1171000,
              "accn": "0001441816-17-000010",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-12-15"
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            {
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              "end": "2018-01-31",
              "val": 1171000,
              "accn": "0001441816-18-000028",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2017"
            }
          ]
        }
      },
      "TreasuryStockAcquiredAverageCostPerShare": {
        "label": "Treasury Stock Acquired, Average Cost Per Share",
        "description": "Total cost of shares repurchased divided by the total number of shares repurchased.",
        "units": {
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              "start": "2016-02-01",
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              "val": 13.27,
              "accn": "0001441816-18-000028",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2018-03-30",
              "frame": "CY2016"
            },
            {
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              "fy": 2021,
              "fp": "FY",
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            {
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