Segment Information - Revenues by Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Total revenues	$ 2,787,635	$ 2,256,107	$ 2,309,238
U.S. Customers [Member]
Segment Reporting Information [Line Items]
Total revenues	2,376,252	2,063,832	2,057,458
Non U.S. Customers [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 411,383	$ 192,275	$ 251,780