Property and Depreciation Schedule of Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 32,917	$ 28,937	$ 27,728
Capital lease obligations incurred	3,632	1,971	2,332
Assets held-for-sale	7,626	3,034
Proceeds from Sale of Property Held-for-sale	34	33,486
GainLossOnSaleAssetsHeldForSale	23	30,738
Losses on impairment of property	0	1,066	312
Building
Property, Plant and Equipment [Line Items]
Estimated useful asset life	42 years
Furniture, Fixtures & Equipment and Software
Property, Plant and Equipment [Line Items]
Capitalized software and development costs	3,187	7,583
Furniture, Fixtures & Equipment and Software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful asset life	3 years
Furniture, Fixtures & Equipment and Software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful asset life	14 years
Assets Held under Capital Leases
Property, Plant and Equipment [Line Items]
Capital lease obligations incurred	3,632	1,971
Capitalized Interest Costs
Property, Plant and Equipment [Line Items]
Interest costs capitalized	$ 182	$ 56	$ 13