Detail of Certain Balance Sheet Accounts (Property and Equipment) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Property and Equipment
Total	$ 1,014,862,000	$ 974,086,000
Less accumulated depreciation and amortization	187,741,000	177,730,000
Property and equipment, net	827,121,000	796,356,000
Capital expenditures incurred for purchase and construction of assets	16,200,000
Land [Member]
Property and Equipment
Total	283,656,000	269,778,000
Acquisition of fixed assets	3,000,000
Buildings [Member]
Property and Equipment
Total	415,774,000	405,918,000
Buildings [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P30Y
Buildings [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P40Y
Leasehold improvements [Member]
Property and Equipment
Total	129,811,000	120,531,000
Leasehold improvements [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	varies
Machinery and equipment [Member]
Property and Equipment
Total	81,700,000	79,209,000
Machinery and equipment [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P7Y
Machinery and equipment [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P20Y
Furniture and fixtures [Member]
Property and Equipment
Total	74,350,000	70,918,000
Furniture and fixtures [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P3Y
Furniture and fixtures [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P10Y
Company vehicles [Member]
Property and Equipment
Total	8,630,000	8,508,000
Company vehicles [Member] | Minimum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P3Y
Company vehicles [Member] | Maximum [Member]
Property and Equipment
Property, Plant and Equipment, Estimated Useful Lives	P5Y
Construction in progress [Member]
Property and Equipment
Total	20,941,000	19,224,000
Land and Building [Member]
Property and Equipment
Acquisition of fixed assets	$ 19,200,000