Accounts Receivable Securitization Programs (Details) € in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) bank	Sep. 30, 2018 USD ($)	Sep. 30, 2019 EUR (€)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 EUR (€)
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Amounts available under under program	$ 246,100,000		$ 246,100,000			$ 249,800,000
Interest paid	48,500,000	$ 44,800,000	$ 136,600,000	$ 131,300,000
U.S. Accounts Receivable Securitization Program | U.S. Program
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Number of banks involved in sale of fractional ownership interest of accounts receivable | bank			2
Level of eligible assets available under accounts receivable securitization program			$ 60,000,000.0
Amounts available under under program	60,000,000.0		60,000,000.0
Amount utilized under accounts receivable securitization program	60,000,000.0		60,000,000.0			0
U.S. Accounts Receivable Securitization Program | Maximum | U.S. Program
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Maximum purchase limit for receivable interests under accounts receivable securitization program	60,000,000.0		60,000,000.0
European Accounts Receivable Securitization Program | European Program
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Amounts available under under program	77,600,000		77,600,000		€ 70.9
Amount utilized under accounts receivable securitization program	77,600,000		77,600,000		70.9	$ 83,900,000	€ 73.3
European Accounts Receivable Securitization Program | Maximum | European Program
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Maximum purchase limit for receivable interests under accounts receivable securitization program	87,500,000		87,500,000		€ 80.0
Accounts Receivable Securitization Programs
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Interest paid	$ 200,000	$ 200,000	$ 600,000	$ 400,000