Fixed Assets (Summary Of Fixed Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property Plant And Equipment [Abstract]
Furniture and equipment	$ 238,315	$ 194,521
Building and leasehold improvements	155,528	124,390
Property on operating leases	21,164
Total	415,007	318,911
Less accumulated depreciation and amortization	(231,987)	(194,665)
Fixed assets, net	$ 183,020	$ 124,246