Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ (947,597)	$ (52,012)	$ 60,955
Other comprehensive income (loss):
Foreign currency translation adjustment	(5,519)	(2,833)	1,242
Changes in fair value of interest rate cap, net of taxes	981	(3,449)	1,606
Unrealized gain (loss) on available for sale debt securities of the Joint Venture, net of taxes	1,045
Realized gain (loss) on available for sale debt securities of the Joint Venture	(1,045)
Other comprehensive income (loss)	(4,538)	(6,282)	2,848
Total comprehensive income (loss)	$ (952,135)	$ (58,294)	$ 63,803