RISK MANAGEMENT AND DERIVATIVES - Derivative Other Comprehensive Income Rollforward (Details) - Cash Flow Hedges - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivative Asset (Liability) Rollforward [Roll Forward]
Derivative assets (liabilities), beginning balance	$ (58,943)	$ 12,384	$ 6,695	$ (11,067)
Amount of gain (loss) recognized in other comprehensive income (loss) on derivatives	11,615	(38,740)	(51,267)	(18,384)
Amount of gain (loss) reclassified from other comprehensive income (loss) into income	(5,841)	(3,648)	(3,085)	(6,743)
Derivative assets (liabilities), ending balance	(41,487)	(22,708)	(41,487)	(22,708)
Derivative foreign currency contracts
Derivative Asset (Liability) Rollforward [Roll Forward]
Derivative assets (liabilities), beginning balance	(58,566)	12,797	7,081	(10,645)
Amount of gain (loss) recognized in other comprehensive income (loss) on derivatives	11,615	(38,740)	(51,267)	(18,384)
Amount of gain (loss) reclassified from other comprehensive income (loss) into income	(5,831)	(3,639)	(3,066)	(6,725)
Derivative assets (liabilities), ending balance	(41,120)	(22,304)	(41,120)	(22,304)
Interest rate swaps
Derivative Asset (Liability) Rollforward [Roll Forward]
Derivative assets (liabilities), beginning balance	(377)	(413)	(386)	(422)
Amount of gain (loss) recognized in other comprehensive income (loss) on derivatives	0	0	0	0
Amount of gain (loss) reclassified from other comprehensive income (loss) into income	(10)	(9)	(19)	(18)
Derivative assets (liabilities), ending balance	$ (367)	$ (404)	$ (367)	$ (404)