Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended			24 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013
Income Tax Examination [Line Items]
U.S. federal income tax rate	35.00%	35.00%	35.00%
Net current deferred income tax assets	$ 0	$ 28,426
Net non-current deferred tax assets		16,800
Net non-current deferred tax liabilities	57,400	28,200
Non-cash charge	73,400
Deferred Tax Assets, Operating Loss Carryforwards	74,600
Unrecognized tax benefits	3,900
Unrecognized tax benefits that would have a favorable impact on effective tax rate		3,100
Accrued interest and penalties	500	700	$ 600	$ 600
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense				$ 300
Decrease in Unrecognized Tax Benefits is Reasonably Possible	600
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount	$ 537,300
Prepaid Expenses and Other Current Assets [Member]
Income Tax Examination [Line Items]
Net current deferred income tax assets		28,400
Accrued Income And Other Taxes [Member]
Income Tax Examination [Line Items]
Net current deferred tax liabilities		7,200
Foreign Country [Member]
Income Tax Examination [Line Items]
Total foreign tax credit carryforwards		19,700
Tax credit carryforwards, years	7 years
Operating loss carryforwards		$ 19,300
Domestic Tax Authority [Member]
Income Tax Examination [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	$ 62,000
Operating loss carryforwards	178,800
State [Member]
Income Tax Examination [Line Items]
Operating loss carryforwards	260,600
Successor [Member]
Income Tax Examination [Line Items]
Net non-current deferred tax assets	15,327
Net non-current deferred tax liabilities	57,430
Total foreign tax credit carryforwards	115,163
Unrecognized tax benefits	$ 3,921