CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ (90,268)	$ (124,511)	$ 1,028,547
Other comprehensive income (loss):
Change in foreign currency translation adjustment	1,777	(2,056)	(2,966)
Comprehensive income (loss)	$ (88,491)	$ (126,567)	$ 1,025,581