Share-Based Compensation - Components of Awards (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 1,100	$ 1,190
Income tax expense (benefit)	(243)	(309)
Total share-based compensation expense, net of income taxes	857	881
Stock and ESPP Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	29	75
Income tax expense (benefit)	(17)	(72)
Total share-based compensation expense, net of income taxes	12	3
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	1,071	1,115
Income tax expense (benefit)	(226)	(237)
Total share-based compensation expense, net of income taxes	$ 845	$ 878

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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