Condensed Consolidated Statements of Operations Parenthetical (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Depreciation:
Net gain on sale of real and personal property	$ (1,961)	$ (1,831)	$ (22,837)	$ (14,879)
Related party:
Related party revenues, net of eliminations	10,211	9,422	27,003	26,344
Related party, costs and expenses, net of eliminations	$ 11,760	$ 10,372	$ 41,685	$ 36,584