Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Accounts receivable reserves	$ 901	$ 604
Accrued liabilities	2,855	2,367
Deferred compensation obligation	6,521	5,702
Stock-based compensation	902	715
Operating lease liabilities	5,411	4,704
Pension and post-retirement benefit plans	0	2,929
Deferred payroll taxes	0	4,965
Other	8	11
Deferred tax assets	16,598	21,997
Deferred tax liabilities:
Prepaid expenses	(359)	(604)
Fixed assets	(4,694)	(4,185)
Goodwill	(2,408)	(2,413)
ROU assets for operating leases	(4,397)	(3,965)
Partnership basis difference	46	(2,966)
Other	0	(207)
Deferred tax liabilities	(11,812)	(14,340)
Valuation allowance	0	0
Total Deferred tax assets, net	$ 4,786	$ 7,657