Income Taxes - Additional Information (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2019 USD ($)
Income Taxes [Line Items]
Net deferred tax assets	$ (2,015,200,000)	$ (1,188,000,000.0)	$ (2,015,200,000)
Net deferred tax liabilities	(1,934,600,000)	(1,432,600,000)	(1,934,600,000)
Three-year cumulative pretax income		150,900,000
Valuation allowance	89,500,000	54,200,000	89,500,000
Valuation allowance released	22,400,000	0	18,300,000	$ 741,900,000
Decrease in valuation allowance		35,300,000
Tax benefit associated with net operating loss carryforwards		52,200,000
Tax Act, provisional income tax expense				266,000,000.0
Tax Act, deferred tax assets, provisional income tax expense				261,300,000
Tax Act, transition tax for foreign dividends, provisional income tax expense				2,600,000
Tax Act, foreign withholding tax, provisional income tax expense				2,100,000
Tax Act, measurement period adjustment, income tax expense			$ 1,200,000
Tax Act, measurement period adjustment, percent			0.013
Tax reserves, interest and penalties related to current year tax positions		0
Tax reserves, interest and penalties related to prior year tax positions		7,100,000
Reversal of previously recorded tax reserves and accrued interest for tax positions settled and/or closed		200,000
Unrecognized tax benefits	30,400,000	37,200,000	$ 30,400,000
Net tax expense in connection with uncertain tax positions		2,800,000
Tax positions that, if reversed, would affect the effective tax rate	23,600,000	29,400,000	23,600,000
Interest and penalties recognized, net of deferred taxes		100,000	500,000	$ 1,700,000
Prepaid income taxes	$ 14,900,000	22,200,000	$ 14,900,000
Domestic
Income Taxes [Line Items]
Net operating loss carryforwards		120,300,000
State
Income Taxes [Line Items]
Net operating loss carryforwards		766,200,000
Net operating loss carryforwards, valuation allowance		$ 36,400,000
ASC 842
Income Taxes [Line Items]
Net deferred tax assets					$ 739,200,000
Net deferred tax liabilities					$ 435,400,000