Annual report pursuant to Section 13 and 15(d)

Income Taxes (Reconciliation Of Income Tax Provision) (Details)

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Income Taxes (Reconciliation Of Income Tax Provision) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Expense (Benefit) [Abstract]      
Income tax provision at the federal statutory rate of 35% $ (76,955) $ (72,715) $ (58,316)
State income taxes, net of effect of federal tax benefit (5,327) (6,386) (6,474)
Other, net (1,091) (1,005) (1,387)
Income tax provision $ (83,373) $ (80,106) $ (66,177)
Federal statutory rate 35.00% 35.00% 35.00%