Condensed Consolidated Statements of Operations Parenthetical (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Depreciation:
Net gain on sale of real and personal property	$ (21,541,000)	$ (9,311,000)	$ (44,500,000)	$ (20,876,000)
Related party:
Related party revenues, net of eliminations	8,900,000	8,400,000	17,600,000	16,800,000
Related party, costs and expenses, net of eliminations	$ 16,400,000	$ 15,900,000	$ 31,400,000	$ 29,900,000