Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 7,195	$ 2,427	$ 7,333	$ 5,069
Income tax benefit (percentage)	35.70%	75.20%	32.30%	47.40%
Unrecognized tax benefits related to various federal and state income tax matters	446		446
Tax-effected amount that would reduce the company's effective income tax rate if recognized	158		158
Accrued interest and penalties related to unrecognized tax benefits	$ 38		$ 38

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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