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Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments Not Designated as Heding Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Prepaid expenses and other
Fair value of derivative instruments
Derivative assets	$ 318	$ 1,579
Accrued expenses
Fair value of derivative instruments
Derivative liabilities	$ 3,413	$ 2,329

X

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

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No definition available.

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