Equity Awards - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net cash proceeds related to stock options exercised	$ 14	$ 100	$ 1,200
Aggregate intrinsic value of stock options exercised	15	24	2,000
Stock-based compensation cost which has not yet been recognized	$ 42,000
Stock-based compensation cost recognized period, in months	2 years 3 months 18 days
Restricted stock awarded subject to performance condition (in shares)	644,000
Tax windfall (shortfall) related to share-based payment arrangements	$ (1,500)	$ (18)	$ 2,800
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of the awards granted under the plan	10 years
Additional shares authorized for grants (in shares)	700,000
Shares available for issuance (in shares)	925,063