Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified					12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Buildings and improvements	Dec. 31, 2011 Buildings and improvements	Dec. 31, 2012 Buildings and improvements Minimum	Dec. 31, 2012 Buildings and improvements Maximum	Dec. 31, 2012 Furniture, fixtures, equipment and computer software	Dec. 31, 2011 Furniture, fixtures, equipment and computer software	Dec. 31, 2012 Furniture, fixtures, equipment and computer software Minimum	Dec. 31, 2012 Furniture, fixtures, equipment and computer software Maximum	Dec. 31, 2012 Leasehold improvements	Dec. 31, 2011 Leasehold improvements	Dec. 31, 2012 Leasehold improvements Minimum	Dec. 31, 2012 Leasehold improvements Maximum	Dec. 31, 2012 Land	Dec. 31, 2011 Land
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 171,503	$ 171,785	$ 68,129	$ 64,002			$ 85,481	$ 88,516			$ 17,893	$ 19,267			$ 13,998	$ 11,471
Less accumulated depreciation and amortization	(91,651)	(99,241)
Property, Plant and Equipment, Net of Accumulated Amortization, Before Land	79,852	72,544
Properties and equipment, net	$ 93,850	$ 84,015
Estimated Useful Life					P20Y	P40Y			P3Y	P10Y			P5Y	P20Y