Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 7,695	$ 277,062	$ (1,686)	$ 250,547
Other comprehensive loss, net of tax:
Unrealized income on securities available for sale, net of tax		(75)		(659)
Net realized loss from settlement of defined benefit plan (less income tax benefit of $2,222)		22,428		22,428
Net realized (gain) on securities available for sale (less income tax benefit of $39)		(1,384)		(1,384)
Reclassification adjustments		21,044		21,044
Other comprehensive income, net of tax		20,969		20,385
Comprehensive income (loss)	$ 7,695	$ 298,031	$ (1,686)	$ 270,932