Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets related to:
Accrued liabilities	$ 1,568	$ 1,058
Intangible assets	2,510	2,818
Net operating loss carryforward	11,966	10,259
Stock-based compensation	326	377
Foreign tax credits	3,968	3,782
Goodwill	5,249	6,199
Leases	8,772	10,235
Other	2,040	1,518
Total gross deferred tax assets	36,399	36,246
Less valuation allowance	(15,443)	(12,493)
Total net deferred tax assets	20,956	23,753
Liabilities related to:
Depreciation and amortization	(20,700)	(23,308)
Other	(384)	(582)
Total deferred tax liabilities	(21,084)	(23,890)
Net deferred tax liabilities	$ (128)	$ (137)