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v3.21.1

RELATED‑PARTY TRANSACTIONS (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
May 20, 2020 | Aug. 01, 2019 | May 30, 2019 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Related Party Transaction [Line Items] |  |  |  |  |  |
Treasury stock acquired, average cost per share (in dollars per share) |  |  |  | $ 64.18 | $ 44.13 | $ 46.71
Professional fees |  |  |  | $ 24,681 | $ 21,704 | $ 23,035
ORIX USA Corporation | Management Accounting Legal Regulatory And Other Administrative Services |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related party fee revenue |  |  |  | 2,875 | 828 | $ 8,819
Unconsolidated entities | Management and administrative services |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related party fee revenue |  |  |  | $ 126 | $ 482 |
Class B shares |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  |  | 286,730,000 | 654,994,000 | 36,958,000
Class A |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Shares issued and sold in Follow-on Offering (in shares) | 3,000,000 |  |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  |  | 1,591,995,000 | 671,187,000 | 1,481,114,000
Class A | ORIX USA Corporation |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Shares issued and sold in Follow-on Offering (in shares) |  | 3,377,935 | 3,000,000 |  |  |
Selling price per share (in dollars per share) |  | $ 45.62 | $ 45.80 |  |  |
Other Assets |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Loans receivable from employees |  |  |  | $ 16,657 | $ 17,857 |

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