Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ (11)	$ 1,715	$ 433
State	(23)	49	107
Foreign	2,478	1,758	7,629
Total current	2,444	3,522	8,169
Deferred:
Federal	3,774	1,385	(970)
State	(3)	(24)	24
Foreign	(1,774)	(2,848)	(678)
Total deferred	1,997	(1,487)	(1,624)
Total	$ 4,441	$ 2,035	$ 6,545

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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