Income Taxes (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	$ 42,100
Operating Loss Carryforwards	206,000
Deferred Tax Assets, Operating Loss Carryforwards	41,000
Deferred Tax Assets, Valuation Allowance	36,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	4,610
Second component of tax deductible goodwill, net of tax	1,600
Liability for Uncertain Tax Positions, Noncurrent	20,238
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	2,567
Deferred tax asset, Uncertain tax position	5,257
Unrecognized Tax Benefits, Interest on Income Taxes Expense	$ 1,179