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Long-Term Incentive Plans - Additional Information (Details) | 6 Months Ended
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Jul. 31, 2021 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Incentive plan performance targets covering period | 3 years
Vesting terms | The performance period for each LTIP is three years. Awards for any achievement of performance targets will not be granted until the performance targets are achieved and then will be subject to additional vesting through August 31, 2022, August 31, 2023 and August, 31, 2024, respectively. The time-based awards under the 2019-2021 LTIP, 2020-2022 LTIP and 2021-2023 LTIP vest in four equal installments through April 1, 2023, April 1, 2024 and April 1, 2025, respectively.
Time Based Vesting Schedule |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Time Based Vesting Schedule | 2019-2021 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock compensation cost incurred | $ 3,800,000
Stock compensation cost, period | 44 months
Time Based Vesting Schedule | 2020-2022 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock compensation cost incurred | $ 3,800,000
Stock compensation cost, period | 46 months
Time Based Vesting Schedule | 2021-2023 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock compensation cost incurred | $ 4,000,000.0
Stock compensation cost, period | 49 months
Performance Based Vesting Schedule |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Performance Based Vesting Schedule | 2019-2021 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Accrued compensation expense | $ 1,200,000
Performance Based Vesting Schedule | 2020-2022 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Accrued compensation expense | 700,000
Performance Based Vesting Schedule | 2021-2023 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Accrued compensation expense | $ 400,000
RSUs | 2019-2021 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Stock Options | 2020-2022 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Stock Options | 2021-2023 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 25.00%
Cash | 2019-2021 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Cash | 2020-2022 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 50.00%
Cash | 2021-2023 LTIP |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vesting percentage | 75.00%

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