Income Taxes (Effective Income Tax Rate Reconciliation From Statutory Rate Due To The Tax Effect) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Federal income tax computed at the statutory rate	35.00%	35.00%	35.00%
Tax-exempt interest	1.50%	40.20%	(3.10%)
Mark-to-market on warrants	0.30%	(11.20%)	0.00%
Change in valuation allowance	6.20%	119.40%	13.80%
Change in uncertain tax positions	(1.00%)	(22.30%)	0.00%
State income tax, net of federal benefit	0.00%	11.50%	0.30%
Deferred tax inventory adjustment	0.00%	(13.60%)	0.70%
Foreign taxes	0.10%	(1.80%)	(1.60%)
Other	(1.00%)	(1.40%)	2.80%
Effective tax rate	41.10%	155.80%	47.90%