Fixed Assets Fixed Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Land	$ 93,353us-gaap_Land	$ 93,679us-gaap_Land
Buildings and building improvements	226,465	226,604
Leasehold improvements	83,643us-gaap_LeaseholdImprovementsGross	84,855us-gaap_LeaseholdImprovementsGross
Computer hardware and software	71,422	71,021
Furniture, fixtures and equipment	78,182us-gaap_FurnitureAndFixturesGross	78,574us-gaap_FurnitureAndFixturesGross
Construction in progress	1,401us-gaap_ConstructionInProgressGross	2,136us-gaap_ConstructionInProgressGross
Other	1,176us-gaap_PropertyPlantAndEquipmentOther	1,371us-gaap_PropertyPlantAndEquipmentOther
Sub-total	555,642us-gaap_PropertyPlantAndEquipmentGross	558,240us-gaap_PropertyPlantAndEquipmentGross
Less: Accumulated depreciation and amortization	(191,260)	(178,841)
Total Fixed Assets, net	364,382us-gaap_PropertyPlantAndEquipmentNet	379,399us-gaap_PropertyPlantAndEquipmentNet
Depreciation and amortization	20,575	19,435	17,942
Fixed Assets [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 20,600	$ 19,400	$ 17,900

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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