Condensed Consolidated Statements of Operations Parenthetical - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Depreciation:
Net gain on sale of real and personal property	$ (36,085)	$ (98,703)	$ (74,631)
Related party:
Related party revenues, net of eliminations	33,955	32,619	36,173
Related party, costs and expenses, net of eliminations	$ 59,853	$ 57,368	$ 54,709