Income Taxes - Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 393	$ 723
Additions for tax positions related to the current fiscal period	0	0
Additions for tax positions related to prior years	32	217
Decreases for tax positions related to prior years	0	0
Current year acquisitions	0	0
Impact of foreign exchange fluctuation, increase		13
Impact of foreign exchange fluctuation, decrease	(5)
Settlements	0	(465)
Reductions related to the expiration of statutes of limitations	(73)	(95)
Balance at end of period	$ 347	$ 393

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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