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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Statement of Comprehensive Income [Abstract]      
Change in unrealized gain (loss) on available-for-sale-securities, tax benefit (provision) $ (425) $ 5,199 $ 0