Derivatives Instruments and Hedging Activities - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Gains recognized in AOCI to be reclassified over the next 12 months	$ 1,700,000
Derivatives designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	$ 300,000,000	$ 300,000,000.0
Derivatives not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Fixed interest rate	1.895%	1.895%
Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Derivative [Line Items]
Notional amount	$ 271,500,000	$ 511,400,000
Maximum | Derivatives not designated as hedging instruments | Foreign exchange forward contracts
Derivative [Line Items]
Contract term	12 months