Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended		24 Months Ended
	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2015	Aug. 15, 2015
Income Tax Examination [Line Items]
U.S. federal income tax rate	35.00%	35.00%	35.00%
Net non-current deferred tax assets					$ 15,300
Net non-current deferred tax liabilities		$ 42,900			57,400
Non-cash charge		73,400
Deferred Tax Assets, Operating Loss Carryforwards		95,500
Unrecognized tax benefits		3,300
Unrecognized tax benefits that would have a favorable impact on effective tax rate					3,000
Accrued interest and penalties		700	$ 500	$ 500	800
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense				$ 100
Decrease in Unrecognized Tax Benefits is Reasonably Possible		1,000
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount		$ 472,800
Foreign Country [Member]
Income Tax Examination [Line Items]
Total foreign tax credit carryforwards					19,700
Tax credit carryforwards, years		7 years
Operating loss carryforwards					34,300
Domestic Tax Authority [Member]
Income Tax Examination [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards		$ 100,900
Operating loss carryforwards		244,600
State [Member]
Income Tax Examination [Line Items]
Operating loss carryforwards		290,500
Successor [Member]
Income Tax Examination [Line Items]
Net non-current deferred tax assets		19,803			15,326
Net non-current deferred tax liabilities		42,906			57,430
Total foreign tax credit carryforwards		153,169
Unrecognized tax benefits		3,338			$ 3,921	$ 3,689
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations		$ 603