Fair Value Measurements - Additional Information (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2017 USD ($) item	Jun. 30, 2017 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of counterparties, which experienced significant downgrades | item	0
Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets	$ 0	$ 0
Liabilities	0	0
Level 2 | Fair Value Measured on Recurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets	14,300,000	14,300,000
Derivative liabilities	8,800,000	8,800,000
Level 2 | Fair Value Measured on Recurring Basis | Interest Rate Swap Agreements
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets	600,000	600,000
Derivative liabilities	300,000	$ 300,000
Derivative assets and liabilities measurement valuation		Interest rate swaps — valued using LIBOR yield curves at the reporting date.
Level 2 | Fair Value Measured on Recurring Basis | Foreign Currency Forward Exchange Contracts
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets	13,700,000	$ 13,700,000
Derivative liabilities	8,500,000	$ 8,500,000
Derivative assets and liabilities measurement valuation		Foreign exchange derivative assets and liabilities — valued using quoted forward prices at the reporting date.
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets	0	$ 0
Liabilities	$ 0	$ 0