CASH AND CASH EQUIVALENTS - Narrative (Details) - USD ($) $ in Thousands  | 
Dec. 31, 2021  | 
Mar. 31, 2021  | 
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| FDIC insurance | $ 250,000 | $ 250,000 | 
| Fair value of collateral received by the company under reverse repurchase agreements | $ 333,803 | $ 272,586 | 
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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. No definition available. 
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- Definition Fair value of securities received as collateral against derivative assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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