Income Taxes - Narrative (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended			12 Months Ended
	Oct. 31, 2013	Feb. 29, 2012	Jan. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Tax Credit Carryforward [Line Items]
Statuatory federal rate				35.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate				$ 105	$ 105	$ 861
Due to expiration of statute						423
Change in unrecognized tax benefits, forecast period				12 months
Federal income tax refund	2,590	2,025	6,344	3,015	3,184	6,724
Minimum
Tax Credit Carryforward [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound				0
Maximum
Tax Credit Carryforward [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound				$ 45
Foreign Tax Authority
Tax Credit Carryforward [Line Items]
Returns filed				7
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Returns filed				29