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Employee Benefit Plans - SARs Outstanding by Exercise Price Range (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 18.21	$ 18.21
Number Outstanding (in shares)	50,500	55,000
SARs Outstanding, Weighted Average Remaining Life	1 year 10 months 9 days
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.21
SARs Exercisable, Number Exercisable (in shares)	14,500
SARs Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 18.12
15.19 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 15.19
Number Outstanding (in shares)	16,000
SARs Outstanding, Weighted Average Remaining Life	1 year 9 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.19
18.12 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 18.12
Number Outstanding (in shares)	14,500
SARs Outstanding, Weighted Average Remaining Life	9 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.12
SARs Exercisable, Number Exercisable (in shares)	14,500
SARs Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 18.12
20.70 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 20.70
Number Outstanding (in shares)	20,000
SARs Outstanding, Weighted Average Remaining Life	2 years 9 months 3 days
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 20.70

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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