Derivative Instruments - Summary of Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Long-term assets:	$ 0	$ 3,259
Liabilities
Total derivative instrument assets	295	3,259
Total derivative instrument liabilities	11	10,677
Derivatives designated as hedging instruments: \| Net investment cross currency swaps
Assets
Long-term assets:	0	3,259
Derivatives not designated as hedging instruments: \| Cross currency swaps
Assets
Current assets:		0
Liabilities
Long-term liabilities:	$ 0	$ 6,656

Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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