Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes [Abstract]
Income Tax Expense (Benefit)	$ (9,415)	$ 1,534	$ (8,961)	$ 5,296
Proforma effective tax rate (in hundredths)	32.70%		33.40%
Net change in domestic valuation allowance	14,161		14,359
Net gain (loss) due to full consolidation			(4,122)
Change in domestic valuation allowance due to updated customer projections for future years	(13,041)
Forecasted change in domestic valuation allowance	(3,000)
Approximate remaining valuation allowance against foreign tax credits	10,000
Minimum [Member]
Income Tax Contingency [Line Items]
Potential future increase/(decrease) to unrecognized tax benefits	(6,600)
Maximum [Member]
Income Tax Contingency [Line Items]
Potential future increase/(decrease) to unrecognized tax benefits	8,000
Non-US Jurisdiction [Member]
Income Tax Contingency [Line Items]
Potential future increase/(decrease) to unrecognized tax benefits	116
Amount in which the reserve for unrecognized tax benefits changed due to foreign currency translation	61
2015 [Member]
Tax Credit Carryforward [Line Items]
Foreign tax credit carry forward	14,000		14,000
Foreign tax credit carry forward, expiration date			Dec. 31, 2015
2016 [Member]
Tax Credit Carryforward [Line Items]
Foreign tax credit carry forward	13,000		13,000
Foreign tax credit carry forward, expiration date			Dec. 31, 2016
2018 [Member]
Tax Credit Carryforward [Line Items]
Foreign tax credit carry forward	$ 4,000		$ 4,000
Foreign tax credit carry forward, expiration date			Dec. 31, 2018