Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current
U.S.	$ 40,375	$ 61,279	$ 70,338
State	2,234	5,083	4,129
Foreign	33	15	22
Total current taxes	42,642	66,377	74,489
Deferred
U.S.	7,928	(2,296)	(3,394)
State	(5)	(3)	(138)
Total deferred taxes	7,923	(2,299)	(3,532)
Total income taxes	$ 50,565	$ 64,078	$ 70,957

The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations.

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