INCOME TAXES - Summary of Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Deferred tax assets:
Accrued expenses	$ 8,721	$ 8,480
Deferred revenue	17,267	17,648
Reserves	3,106	2,898
Pension and other retiree benefits	4,903	6,160
Net operating loss carryforwards	11,611	11,526
Tax credit carryforwards	21,132	19,432
Share-based compensation	6,172	5,397
Operating lease liability	15,639	17,333
Other deferred tax assets	658	2,116
Total gross deferred tax assets	89,209	90,990
Valuation allowance	(13,160)	(11,406)
Net deferred tax assets	76,049	79,584
Deferred tax liabilities:
Intangible assets	(117,839)	(132,635)
Operating lease right-of-use asset	(13,189)	(14,474)
Depreciation	(6,612)	(7,818)
Other deferred tax liabilities	(10,425)	(8,848)
Total deferred tax liabilities	$ (72,016)	$ (84,191)