Derivative Instruments and Hedging Activities - Additional Information (Details) - Foreign currency forward contracts - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Maximum remaining maturity of foreign currency derivatives	18 months
Notional amount of derivatives	$ 583.3	$ 592.3

Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration