Fair Value Measurement - Narrative (Details)	6 Months Ended
	Jun. 30, 2020 USD ($) contract	Jun. 30, 2019 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts receivable, net	$ 644,100,000			$ 683,000,000.0
Accounts receivable, allowances	14,900,000			7,700,000
Increase in accounts receivable, allowances	7,200,000
Available for sale investments	44,400,000			50,700,000
Available for sale debt securities, amortized cost	43,100,000			50,100,000
Available for sale debt securities, allowance for credit losses	0
Available for sale debt securities, unrealized losses	100,000			100,000
Available for sale debt securities with unrealized losses, fair value	4,700,000			3,600,000
Trading securities	19,900,000			19,200,000
Purchase of trading securities related to deferred compensation plans	2,500,000	$ 3,000,000.0
Proceeds from securities sold	$ 1,600,000	$ 600,000
Number of foreign exchange contracts held (in contracts) | contract	23
Long-term debt, including current portion of long-term debt	$ 1,610,400,000			1,506,000,000.0
Forward exchange contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount	26,100,000
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current portion of long-term debt	40,600,000			34,400,000
Long-term debt, including current portion of long-term debt	1,651,000,000.0			1,540,400,000
Long-term debt, fair value	$ 1,733,500,000			$ 1,592,200,000
Accounting Standards Update 2016-13 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accounts receivable, allowances			$ 1,300,000