Facility Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of facility operating lease expense [Abstract]
Cash basis payment	$ 91,092	$ 69,507	$ 233,617	$ 208,057
Straight-line expense	2,840	818	2,400	2,250
Amortization of (above) below market rents, net	(1,377)	0	(1,377)	0
Amortization of deferred gain	(1,093)	(1,093)	(3,279)	(3,279)
Facility lease expense	$ 91,462	$ 69,232	$ 231,361	$ 207,028