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BUSINESS COMBINATIONS - Narrative (Details) $ in Thousands			4 Months Ended	12 Months Ended
BUSINESS COMBINATIONS - Narrative (Details) $ in Thousands	Jan. 20, 2022 USD ($)	Oct. 04, 2021 USD ($)	Jan. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Oct. 04, 2021 ¥ / shares
Business Acquisition [Line Items]
Goodwill				$ 1,087,784	$ 1,070,442
Provision for income taxes				69,777	165,614	$ 96,457
GCA Corporation
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired		90.00%
Payments to acquire businesses, gross	$ 57,686	$ 531,883	$ 589,569
Cash consideration per share \| ¥ / shares							¥ 1,398
Goodwill		$ 394,300		394,321
GCA Corporation \| Acquisition-related Costs
Business Acquisition [Line Items]
Business combination, acquisition related costs				0	(7,026)
Amortization				(40,986)	(12,946)
Provision for income taxes				$ 8,812	$ 5,472