Income Taxes (Unrecognized Tax Benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, Beginning Balance	$ 9,410	$ 5,723	$ 4,989
Gross additions, current year	2,196	2,392	1,372
Gross reductions, current year	0	0	0
Tax positions related to current year	2,196	2,392	1,372
Gross additions, prior year	1,990	1,992	0
Gross reductions, prior year	0	0	(104)
Tax positions related to current year	1,990	1,992	(104)
Settlements	(99)	0	(102)
Lapses on statute of limitations	(1,944)	(697)	(432)
Unrecognized tax benefits, Ending Balance	$ 11,553	$ 9,410	$ 5,723

Tax positions related to prior years.

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Unrecognized tax benefits decreases and increases resulting from current period tax positions.

+ References

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

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