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Common Stock and Earnings per Share - Schedule of Common Stock Outstanding (Details)	12 Months Ended
	Dec. 31, 2021 shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at January 1	14,392,669
Issuance of common stock:
Employee restricted stock grants	22,393
Employee restricted stock units vested	2,232
Performance-based stock vested	18,336
Employee SARs exercised	7,810
Directors’ stock grants	5,450
Shares repurchased	(713,857)
Shares forfeited	(738)
Shares outstanding at December 31	13,734,295

X

- Definition

Performance-based stock.

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X

- Definition

Number of share options and stock appreciation rights exercised during the current period.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Number of shares issued which are neither cancelled nor held in the treasury.

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The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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Number of shares (or other type of equity) forfeited during the period.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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