CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ (38,040)	$ 1,056,400	$ (120,382)	$ 1,074,008
Other comprehensive income (loss):
Change in foreign currency translation adjustment	157	(2,301)	(1,025)	(2,876)
Comprehensive income (loss)	$ (37,883)	$ 1,054,099	$ (121,407)	$ 1,071,132