General form of registration statement for all companies including face-amount certificate companies

BALANCE SHEET INFORMATION - Narrative (Details)

v3.25.0.1
BALANCE SHEET INFORMATION - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Balance Sheet Related Disclosures [Abstract]              
Depreciation         $ 6,000,000.0 $ 5,500,000 $ 5,700,000
Intangible assets amortization expense $ 500,000 $ 900,000 $ 1,000,000.0 $ 2,100,000 $ 3,300,000 $ 4,600,000 $ 3,700,000
Weighted-average remaining amortization period 9 months 18 days   9 months 18 days   10 months 24 days    
Goodwill, Impairment Loss     $ 0   $ 0