CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 71,815	$ 25,367	$ 118,095	$ 97,060
Other comprehensive income (loss):
Foreign currency translation adjustment	(12,567)	2,482	(21,364)	(24,335)
Cash flow hedges:
Change in unrealized gains	5,889	878	6,092	1,869
Reclassification to earnings	(4,490)	0	(3,408)	0
Tax effect on effective cash flow hedges	696	(24)	687	109
Change in fair value of effective cash flow hedge	2,095	854	3,371	1,978
Change in fair value of available for sale securities	(2)	481	720	890
Other comprehensive (loss) income	(10,474)	3,817	(17,273)	(21,467)
Comprehensive income	$ 61,341	$ 29,184	$ 100,822	$ 75,593

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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