Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property and Equipment
Total	$ 1,269,119	$ 1,153,758
Less accumulated depreciation and amortization	235,138	203,370
Property and equipment, net	1,033,981	950,388
Land [Member]
Property and Equipment
Total	364,475	328,474
Buildings [Member]
Property and Equipment
Total	$ 505,414	482,496
Buildings [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	30
Buildings [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	40
Leasehold improvements [Member]
Property and Equipment
Total	$ 155,585	134,658
Machinery and equipment [Member]
Property and Equipment
Total	$ 90,993	87,728
Machinery and equipment [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	7
Machinery and equipment [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	20
Furniture and fixtures [Member]
Property and Equipment
Total	$ 82,688	77,581
Furniture and fixtures [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	3
Furniture and fixtures [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	10
Company vehicles [Member]
Property and Equipment
Total	$ 11,603	10,706
Company vehicles [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	3
Company vehicles [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	5
Construction in progress [Member]
Property and Equipment
Total	$ 58,361	$ 32,115