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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current taxes:
Federal	$ 24,928	$ 26,489	$ 20,240
State	2,865	3,869	3,155
Deferred taxes	(689)	(5,282)	(58)
Total income taxes	$ 27,104	$ 25,076	$ 23,337

X

- Definition

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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