Fixed Assets (Summary Of Fixed Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fixed Assets [Abstract]
Furniture and equipment	$ 157,974	$ 147,210
Building and leasehold improvements	82,234	77,192
Property on operating lease	46,500
Total	286,708	224,402
Less accumulated depreciation and amortization	(145,305)	(119,662)
Fixed assets, net	141,403	104,740
Depreciation and amortization of furniture and equipment, and leasehold improvements	$ 30,066	$ 28,267	$ 23,843

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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