Debt (Textuals) (Details)			12 Months Ended
		Aug. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	May 09, 2017 USD ($)
Debt Instruments [Line Items]
Document Period End Date			Dec. 31, 2018
Fees to creditors			$ 39,400,000	$ 1,100,000	$ 39,200,000
Long-term Debt, Fiscal Year Maturity
2018			49,500,000
2019			438,200,000
2020			26,500,000
2021			603,300,000
Thereafter			1,196,900,000
Long-term debt			2,190,000,000	1,787,100,000
Interest expense			$ 127,100,000	102,700,000	85,700,000
Debt Instrument, Covenant Compliance			As of December 31, 2015, the Company was in compliance with the financial and other covenants in its debt agreements
Repricing Premium Percentage			1.00%
Total Net Leverage Ratio			2.5
Other debt borrowings			$ 725,900,000	374,100,000	1,837,700,000
Repayments of Other Debt			337,700,000	$ 458,800,000	$ 662,500,000
Debt Excluding Debt Issuance Costs			2,314,400,000
June 2015 Revolving Credit Facility [Member]
Debt Instruments [Line Items]
Borrowing capacity under credit facility			$ 500,000,000
Line of Credit [Member]
Debt Instruments [Line Items]
Line of credit facility expiration period			5 years
Industrial development revenue bonds [Member]
Long-term Debt, Fiscal Year Maturity
Debt instrument maturity period			20 years
Term Loan A Facility [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			LIBOR + 3.50%
Delayed Draw Term Loan A [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			LIBOR + 3.50%
Term Loan A-1 Facility [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			LIBOR + 9.25%
Term Loan B USD [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms	[1]		LIBOR(i) + 2.75%
Unsecured Debt			$ 1,000,000,000						$ 475,000,000
Delayed Draw Term Loan A Facility [Member]
Debt Instruments [Line Items]
Unsecured Debt									250,000,000
Term Loan B EUR [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			EURIBOR(ii) + 3.00%
Unsecured Debt									$ 70,000,000
Reduction in Revolving Credit Facility Borrowing Capacity [Member]
Debt Instruments [Line Items]
Borrowing capacity under credit facility		$ 0
2016 Senior Notes [Member]
Long-term Debt, Fiscal Year Maturity
Debt Instrument, Interest Rate, Stated Percentage			8.50%
Revolving Credit Facility [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			LIBOR + 3.50%
Amount available under credit facility			$ 347,500,000
Weighted average interest rate on credit facility borrowings outstanding			5.97%	3.63%
Uncommitted Line of Credit [Member]
Debt Instruments [Line Items]
Borrowing capacity under credit facility			$ 48,900,000
Weighted average interest rate on outstanding borrowings			8.80%	9.17%
Amount available under credit facility			$ 28,000,000
Line of credit facility expiration period			1 year
Term Loan A-1 Facility [Member]
Long-term Debt, Fiscal Year Maturity
Other debt borrowings		650,000,000.0	$ 650,000,000	$ 0
Repayments of Other Debt			8,100,000	0
Combined Term B Loans [Member]
Long-term Debt, Fiscal Year Maturity
Repayments of Other Debt		100,000,000
Term Loan A Facility [Member]
Long-term Debt, Fiscal Year Maturity
Repayments of Other Debt		$ 130,000,000	75,000,000	17,300,000
Senior Notes Due 2024 [Member]
Debt Instruments [Line Items]
Senior Notes, Noncurrent			$ 400,000,000	$ 400,000,000
Minimum
Debt Instruments [Line Items]
Adjusted EBITDA To Net Interest Expense Coverage Ratio			1.38
Minimum | Term Loan B USD [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			LIBOR with a floor of 0.0 percent
Minimum | Term Loan B EUR [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate Terms			EURIBOR with a floor of 0.0 percent
Minimum | Subsequent Event [Member]
Debt Instruments [Line Items]
Adjusted EBITDA To Net Interest Expense Coverage Ratio						1.63	1.50
Maximum
Debt Instruments [Line Items]
Net Debt To EBITDA Leverage Ratio			7.00
Maximum | Subsequent Event [Member]
Debt Instruments [Line Items]
Net Debt To EBITDA Leverage Ratio							6.25	6.50

[1] LIBOR with a floor of 0.0 percent.