FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026
Assets:
Money-market funds	$ 1,108,291	$ 1,462,683
Derivative Contract asset, current		7,686
Non-qualified deferred compensation asset	27,483	22,845
Total assets measured at fair value	1,146,751	1,493,214
Liabilities:
Non-qualified deferred compensation liability	(2,696)	(2,407)
Non-qualified deferred compensation liability	(36,626)	(29,291)
Total liabilities measured at fair value	(39,322)	(31,698)
Designated Derivative Contracts
Assets:
Derivative Contract asset, current	10,977	7,316
Non-Designated Derivative Contracts
Assets:
Derivative Contract asset, current		370
Level 1
Assets:
Money-market funds	1,108,291	1,462,683
Non-qualified deferred compensation asset	27,483	22,845
Total assets measured at fair value	1,135,774	1,485,528
Liabilities:
Non-qualified deferred compensation liability	(2,696)	(2,407)
Non-qualified deferred compensation liability	(36,626)	(29,291)
Total liabilities measured at fair value	(39,322)	(31,698)
Level 1 \| Designated Derivative Contracts
Assets:
Derivative Contract asset, current	0	0
Level 1 \| Non-Designated Derivative Contracts
Assets:
Derivative Contract asset, current		0
Level 2
Assets:
Money-market funds	0	0
Non-qualified deferred compensation asset	0	0
Total assets measured at fair value	10,977	7,686
Liabilities:
Non-qualified deferred compensation liability	0	0
Non-qualified deferred compensation liability	0	0
Total liabilities measured at fair value	0	0
Level 2 \| Designated Derivative Contracts
Assets:
Derivative Contract asset, current	10,977	7,316
Level 2 \| Non-Designated Derivative Contracts
Assets:
Derivative Contract asset, current		370
Level 3
Assets:
Money-market funds	0	0
Non-qualified deferred compensation asset	0	0
Total assets measured at fair value	0	0
Liabilities:
Non-qualified deferred compensation liability	0	0
Non-qualified deferred compensation liability	0	0
Total liabilities measured at fair value	0	0
Level 3 \| Designated Derivative Contracts
Assets:
Derivative Contract asset, current	$ 0	0
Level 3 \| Non-Designated Derivative Contracts
Assets:
Derivative Contract asset, current		$ 0

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