Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Current:
Federal	$ 6,642	$ 26	$ 7,653	$ 26
State and local	892	1,053	1,764	2,973
Foreign	908	536	787	1,043
Total current provision	8,442	1,615	10,204	4,042
Deferred:
Federal	(271)	6,459	12,747	15,824
State and local	(392)	869	2,600	3,821
Foreign	(52)	(91)	2	19
Total deferred provision	(715)	7,237	15,349	19,664
Provision for income taxes	$ 7,727	$ 8,852	$ 25,553	$ 23,706

Deferred provision income tax expense benefit.

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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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The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations.

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The component of total income tax expense for the period comprised of the increase (decrease) in the entity's net foreign deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of applicable enacted tax laws of countries other than the country of domicile.

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