FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Fair Value Measurements within the Fair Value Hierarchy (Details) - Fair value measurements on recurring basis - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Fair value of assets and liabilities
Cash and Cash Equivalents	$ 413,331	$ 336,867
Short-Term Investments	7,500	32,045
Other Current Assets	16,359	14,284
Total assets	437,190	383,196
Cash
Fair value of assets and liabilities
Other Current Assets	0	0
Cash
Fair value of assets and liabilities
Short-Term Investments	0	0
Cash
Fair value of assets and liabilities
Cash and Cash Equivalents	25,402	33,224
Total assets	25,402	33,224
Level 1: | Money market funds
Fair value of assets and liabilities
Other Current Assets	0	0
Level 1: | Assets of non-qualified retirement plan
Fair value of assets and liabilities
Other Current Assets	15,913	14,284
Level 1: | U.S. Treasury securities
Fair value of assets and liabilities
Other Current Assets		0
Level 1: | Certificates of deposit
Fair value of assets and liabilities
Other Current Assets	0	0
Level 1: | Equity securities
Fair value of assets and liabilities
Other Current Assets	446
Level 1: | Money market funds
Fair value of assets and liabilities
Short-Term Investments	0	0
Level 1: | Assets of non-qualified retirement plan
Fair value of assets and liabilities
Short-Term Investments	0	0
Level 1: | U.S. Treasury securities
Fair value of assets and liabilities
Short-Term Investments		24,545
Level 1: | Certificates of deposit
Fair value of assets and liabilities
Short-Term Investments	7,500	7,500
Level 1: | Equity securities
Fair value of assets and liabilities
Short-Term Investments	0
Level 1: | Money market funds
Fair value of assets and liabilities
Cash and Cash Equivalents	387,929	303,643
Total assets	387,929	303,643
Level 1: | Assets of non-qualified retirement plan
Fair value of assets and liabilities
Cash and Cash Equivalents	0	0
Total assets	15,913	14,284
Level 1: | U.S. Treasury securities
Fair value of assets and liabilities
Cash and Cash Equivalents		0
Total assets		24,545
Level 1: | Certificates of deposit
Fair value of assets and liabilities
Cash and Cash Equivalents	0	0
Total assets	7,500	$ 7,500
Level 1: | Equity securities
Fair value of assets and liabilities
Cash and Cash Equivalents	0
Total assets	$ 446