Derivatives - Fair value of derivative instruments (Details) - Foreign currency forward contracts - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2020
Prepaids and other current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	$ 0	$ 0	$ 228
Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 128	$ 672	$ 15

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.

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