Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at federal statutory rate	$ (3,829)	$ (19,442)	$ (663)
Recognition of Brazil cumulative foreign currency translation losses	0	2,456	0
Nondeductible goodwill impairment	0	0	2,401
Nondeductible executive compensation	999	170	756
Other nondeductible expenses	557	616	1,506
Stock-based compensation	880	1,602	(248)
Different rates on earnings of foreign operations	(115)	274	463
Dividend taxes on unremitted earnings	980	322	1,609
U.S. tax on foreign earnings	0	0	1,215
Change in valuation allowance	10,416	2,226	1,272
State tax expense (benefit), net	(1,302)	196	430
Other items, net	(1,293)	(303)	1,047
Total provision (benefit) for income taxes	$ 7,293	$ (11,883)	$ 9,788

Effective Income Tax Rate Reconciliation, Nondeductible Expense, Executive Compensation, Amount

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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