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v3.21.1

Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Significant Unobservable Inputs Used in Discounted Cash Flow Models for Investment (Details) - Windset | 9 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2021 | May 31, 2020
Revenue growth rates |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0.07 |
Revenue growth rates | Minimum |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input |  | 0.06
Revenue growth rates | Maximum |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input |  | 0.07
Revenue growth rates | Weighted Average |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0.069 | 0.064
Expense growth rates | Minimum |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0 | 0.06
Expense growth rates | Maximum |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0.08 | 0.08
Expense growth rates | Weighted Average |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0.055 | 0.066
Discount rates |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Measurement input | 0.10 | 0.12

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