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Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 2,295	$ 2,320	$ 2,247
Related tax benefits recognized in net income	482	487	472
RSA & RSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	2,100	2,320	2,247
ESPP
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 195	$ 0	$ 0

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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