Property and Equipment (Property and Equipment, Including Original Useful Lives) (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Building and building improvements [Member] Minimum [Member]	Dec. 31, 2013 Building and building improvements [Member] Maximum [Member]	Dec. 31, 2013 Leasehold improvements [Member] Minimum [Member]	Dec. 31, 2013 Leasehold improvements [Member] Maximum [Member]	Dec. 31, 2013 Furniture, fixtures and equipment [Member] Minimum [Member]	Dec. 31, 2013 Furniture, fixtures and equipment [Member] Maximum [Member]	Dec. 31, 2013 Vehicles [Member] Minimum [Member]	Dec. 31, 2013 Vehicles [Member] Maximum [Member]
Property and Equipment
Land	$ 457,858	$ 420,292
Building and building improvements	1,197,369	1,078,265
Leasehold improvements	483,578	447,046
Furniture, fixtures and equipment	960,928	932,406
Vehicles	251,505	231,615
Construction in progress	255,599	159,946
Total property and equipment	3,606,837	3,269,570
Less: accumulated depreciation and amortization	1,181,734	1,057,980
Net property and equipment	$ 2,425,103	$ 2,211,590
Property, plant and equipment, useful lives, in years			15 years	39 years	3 years	25 years	3 years	20 years	5 years	10 years