Facility Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Schedule of facility operating lease expense [Abstract]
Cash basis payment	$ 94,722	$ 71,185
Straight-line expense	2,801	(223)
Amortization of deferred gain	(1,093)	(1,093)
Amortization of (above) below market rents, net	(1,959)	0
Facility lease expense	$ 94,471	$ 69,869