Fixed Assets (Summary Of Fixed Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Fixed Assets [Abstract]
Furniture and equipment	$ 169,363		$ 157,974
Building and leasehold improvements	95,623		82,234
Property on operating lease	21,049		46,500
Total	286,035		286,708
Less accumulated depreciation and amortization	(161,270)		(145,305)
Fixed assets, net	124,765		141,403
Depreciation and amortization of furniture and equipment, and leasehold improvements	$ 25,162	$ 21,958