Fair Value Measurements (Reconciliation Of Residuals) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period			$ 13,096
Included in earnings			(16)
Included in other comprehensive income			1,595
Interest income on Residuals	594	593	1,789	2,064
Cash received from Residuals			(1,709)
Purchases, sales, issuances and settlements, net			0
Transfers in and/or out of Level 3			0
Balance at end of period	14,755		14,755
Changes in gains (losses) included in earnings attributable to a change in unrealized gains (losses) relating to assets still held at the end of period			$ (328)