Income Taxes - Additional Information (Details) - USD ($)		12 Months Ended
	Dec. 22, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Current tax (expense) benefit allocated directly to stockholder’s equity for compensation expense			$ 0	$ (500,000)	$ 1,200,000
U.S. federal corporate tax rate			35.00%	35.00%	35.00%
Estimated change in recognized tax expense	$ 79,600,000
Net operating loss carry-forwards, federal income tax			$ 900,000
Net operating loss carry-forwards, various state jurisdictions			23,000,000
Net operating loss carry-forwards, various foreign jurisdictions			901,200,000
Valuation allowance for deferred tax assets			155,513,000	$ 118,329,000
Undistributed earnings of foreign subsidiaries			125,700,000
Unrecognized tax benefits that would affect the effective tax rate			103,200,000	84,200,000	$ 78,300,000
Interest benefit from accrued interest and penalties			(400,000)	7,400,000	100,000
Interest on income taxes accrued			18,200,000	$ 22,500,000	$ 11,500,000
Net Operating Loss and Non-deductible Interest Expense Carryforwards [Member]
Income Taxes [Line Items]
Valuation allowance for deferred tax assets			$ 149,400,000
Domestic Tax Authority
Income Taxes [Line Items]
Operating loss carry forwards expiration dates			2032
Foreign Tax Authority
Income Taxes [Line Items]
Operating loss carry forwards expiration dates			2018
Minimum [Member]
Income Taxes [Line Items]
Decrease in gross unrecognized tax benefits balance			$ 0
Minimum [Member] | State and Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration dates			2029
Maximum [Member]
Income Taxes [Line Items]
Decrease in gross unrecognized tax benefits balance			$ 21,900,000
Maximum [Member] | State and Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration dates			2034
Scenario, Forecast [Member]
Income Taxes [Line Items]
U.S. federal corporate tax rate		21.00%