Income Taxes (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of reconciliation of the beginning and ending amount of unrecognized tax benefits
Beginning Balance	$ 3,979	$ 4,794	$ 6,103
Additions for tax positions of the current year	212	188	725
Additions for tax positions of prior years	323	103
Reclassification from other balance sheet accounts
Reductions for tax positions of prior years		(260)
Settlements			(217)
Lapse of statutes of limitation	(896)	(846)	(1,817)
Ending Balance	$ 3,618	$ 3,979	$ 4,794

Unrecognized tax benefits due to reclassification from other balance sheet accounts.

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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-Publisher FASB

-Name Accounting Standards Codification

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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