Condensed Consolidated Statements of Operations Parenthetical - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Depreciation:
Net gains on disposal of personal property	$ (26,982)	$ (11,822)	$ (32,495)
Related party:
Related party revenues, net of eliminations	29,148	32,928	33,955
Related party, costs and expenses, net of eliminations	$ 64,112	$ 61,279	$ 59,853