Derivative Financial Instruments and Hedging - Summary of Notional Amounts and Fair Value (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Gross notional amount	$ 1,245,100,000.0	$ 1,184,800,000.0
Total	1,500,000	5,600,000
Other current assets
Derivative [Line Items]
Derivative asset fair value	2,200,000	5,600,000
Other current liabilities
Derivative [Line Items]
Liabilities at fair value	(700,000)	0
Designated
Derivative [Line Items]
Gross notional amount	811,200,000.0	805,100,000.0
Total	2,200,000	3,500,000
Designated | Other current assets
Derivative [Line Items]
Derivative asset fair value	2,200,000	3,500,000
Designated | Other current liabilities
Derivative [Line Items]
Liabilities at fair value	0	0
Non-Designated
Derivative [Line Items]
Gross notional amount	433,900,000.0	379,700,000.0
Total	(700,000)	2,100,000
Non-Designated | Other current assets
Derivative [Line Items]
Derivative asset fair value	0	2,100,000
Non-Designated | Other current liabilities
Derivative [Line Items]
Liabilities at fair value	$ (700,000)	$ 0