CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 105,813	$ 242,870	$ 396,870
Less: Net loss attributable to noncontrolling interests	(1,217)	(1,018)	(530)
Net income attributable to shareholders	107,030	243,888	397,400
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	(1,264)	6,795	1,294
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(109,638)	(155,360)	172,926
Total other comprehensive (loss) income attributable to shareholders	(110,902)	(148,565)	174,220
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (3,872)	$ 95,323	$ 571,620