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Income Taxes (Summary of Income Tax Contingencies) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Balance as of January 1	$ 3,416	$ 3,452	$ 3,101
Tax positions related to the current year:
Additions	217	93	381
Tax positions related to prior years:
Additions	216		28
Reductions	(71)	(58)
Expiration of statutes of limitation		(71)	(58)
Balance as of December 31	$ 3,778	$ 3,416	$ 3,452

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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