Debt - Summary of Debt and Capital Leases Outstanding (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jan. 31, 2019	Dec. 31, 2018
Debt Instrument
Spread on variable rate (as a percent)	2.25%
Total debt and finance lease obligations	$ 1,573,100,000		$ 5,376,000,000.0
Less: current installments of long-term debt and revolving credit facilities	57,800,000		25,300,000
Total long-term debt and finance lease obligations	1,515,300,000		5,350,700,000
Domestic Line of Credit | First Lien Credit Facility - U.S. Dollar Term Loans, due 2026
Debt Instrument
Total debt and finance lease obligations	$ 736,400,000		0
Debt face amount		$ 750,000,000
Domestic Line of Credit | First Lien Credit Facility - USD Term Loans Due 2020, Interest Rate Greater of 3.50% or LIBOR plus 2.50%
Debt Instrument
Stated interest rate (percent)	3.50%
Total debt and finance lease obligations	$ 0		624,300,000
Domestic Line of Credit | First Lien Credit Facility - USD Term Loans Due 2020, Interest Rate Greater of 3.50% or LIBOR plus 2.50% | LIBOR
Debt Instrument
Spread on variable rate (as a percent)	2.50%
Domestic Line of Credit | First Lien Credit Facility - U.S. Dollar Term Loans, due 2021, 4.00% or LIBOR Plus 3.00%
Debt Instrument
Stated interest rate (percent)	4.00%
Total debt and finance lease obligations	$ 0		1,124,700,000
Domestic Line of Credit | First Lien Credit Facility - U.S. Dollar Term Loans, due 2021, 4.00% or LIBOR Plus 3.00% | LIBOR
Debt Instrument
Spread on variable rate (as a percent)	3.00%
Senior Notes
Debt Instrument
Unamortized discount (premium) and debt issuance costs, net	$ 14,200,000		$ 29,900,000
Effective interest rate (percent)	6.20%		6.50%
Senior Notes | USD Senior Notes, Due 2025
Debt Instrument
Stated interest rate (percent)	5.875%		5.875%
Total debt and finance lease obligations	$ 785,800,000		$ 784,900,000
Debt face amount	$ 800,000,000
Senior Notes | USD Senior Notes, due 2022
Debt Instrument
Stated interest rate (percent)	6.50%
Total debt and finance lease obligations	$ 0		1,067,100,000
Debt face amount	$ 1,100,000,000.00
Senior Notes | EUR Senior Notes, due 2023
Debt Instrument
Stated interest rate (percent)	6.00%
Total debt and finance lease obligations	$ 0		397,400,000
Debt face amount	$ 350,000,000
Foreign Line of Credit | First Lien Credit Facility - Euro Term Loans Due 2020, Interest Rate Greater of 3.25% or EURIBOR plus 2.50%
Debt Instrument
Stated interest rate (percent)	3.25%
Total debt and finance lease obligations	$ 0		666,200,000
Foreign Line of Credit | First Lien Credit Facility - Euro Term Loans Due 2020, Interest Rate Greater of 3.25% or EURIBOR plus 2.50% | EURIBOR
Debt Instrument
Spread on variable rate (as a percent)	2.50%
Foreign Line of Credit | First Lien Credit Facility - EURO Term Loans, due 2021, 3.5% or EURIBOR Plus 2.75%
Debt Instrument
Stated interest rate (percent)	3.50%
Total debt and finance lease obligations	$ 0		685,300,000
Foreign Line of Credit | First Lien Credit Facility - EURO Term Loans, due 2021, 3.5% or EURIBOR Plus 2.75% | EURIBOR
Debt Instrument
Spread on variable rate (as a percent)	2.75%
Line of Credit | Revolving Credit Facility
Debt Instrument
Total debt and finance lease obligations	$ 50,000,000.0		25,000,000.0
Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument
Spread on variable rate (as a percent)	2.25%
Line of Credit | First Lien Credit Facility Term Loans
Debt Instrument
Unamortized discount (premium) and debt issuance costs, net	$ 9,800,000		$ 22,400,000
Effective interest rate (percent)	2.40%		4.60%
Other
Debt Instrument
Total debt and finance lease obligations	$ 900,000		$ 1,100,000