Condensed Consolidated Statements of Operations Parenthetical - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Depreciation:
Net gains on disposal of personal property	$ (54,071)	$ (27,057)	$ (26,982)
Related party:
Related party revenues, net of eliminations	31,603	30,406	29,148
Related party, costs and expenses, net of eliminations	$ 71,824	$ 64,697	$ 64,112