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Income Taxes - Components of Income Tax Expense (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Federal current	$ (260)	$ (842)	$ (1,204)
Federal deferred	(16,913)	(1,542)	(2,041)
State current	1,312	629	461
State deferred	(2,949)	401	(1,218)
Foreign current	3,242	2,927	2,970
Foreign deferred	(4,227)	(143)	(94)
Income Tax Expense (Benefit)	$ (19,795)	$ 1,430	$ (1,126)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.