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v3.22.4

Employee Stock and Incentive Plans - Performance Shares and Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Performance Shares [Member] |  |  |  |  |
Stock-based Compensation [Line Items] |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  | 1 year 8 months 12 days |  |
Number of Shares [Rollforward] |  |  |  |  |
As of January 1 |  |  | 80,661 | 85,284 | 99,585
Granted | [1] |  | 37,731 | 33,304 | 25,763
Awarded |  |  | 0 | 0 | (25,304)
Unearned Grant Award |  |  | (50,524) | (33,375) | (13,625)
Forfeited |  |  | (7,379) | (4,552) | (1,135)
As of December 31 |  |  | 60,489 | 80,661 | 85,284
Performance Period (Years) |  |  | 3 years |  |
Weighted-Average Grant Date Fair Value [Abstract] |  |  |  |  |
As of January 1 |  |  | $ 75.80 | $ 80.73 | $ 72.78
Granted | [1] |  | 67.22 | 73.25 | 83.17
Awarded |  |  | 0 | 0 | 62.03
Unearned Grant Award |  |  | 77.49 | 86.09 | 62.03
Forfeited |  |  | 71.00 | 74.05 | 79.81
As of December 31 |  |  | $ 69.62 | $ 75.80 | $ 80.73
Restricted Stock Units [Member] |  |  |  |  |
Stock-based Compensation [Line Items] |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  | 1 year 7 months 6 days |  |
Number of Shares [Rollforward] |  |  |  |  |
As of January 1 |  |  | 28,141 | 37,482 | 39,943
Granted | [2] |  | 15,477 | 16,251 | 15,169
Awarded |  |  | (7,396) | (23,631) | (17,193)
Forfeited |  |  | (2,658) | (1,961) | (437)
As of December 31 |  |  | 33,564 | 28,141 | 37,482
Performance Period (Years) |  |  | 3 years |  |
Weighted-Average Grant Date Fair Value [Abstract] |  |  |  |  |
As of January 1 |  |  | $ 73.16 | $ 77.64 | $ 69.30
Granted | [2] |  | 63.70 | 64.97 | 83.48
Awarded |  |  | 75.55 | 74.53 | 63.41
Forfeited |  |  | 66.44 | 74.52 | 77.52
As of December 31 |  |  | $ 68.80 | $ 73.16 | $ 77.64
Subsequent Event [Member] | Performance Shares [Member] |  |  |  |  |
Number of Shares [Rollforward] |  |  |  |  |
Granted |  | 51,000 |  |  |
Awarded |  | 0 |  |  |
Performance Period (Years) |  | 3 years |  |  |
Granted, Grant Date Fair Value |  | $ 3.4 |  |  |
Subsequent Event [Member] | Restricted Stock Units [Member] |  |  |  |  |
Number of Shares [Rollforward] |  |  |  |  |
Granted |  | 14,700 |  |  |
Awarded |  | (8,500) |  |  |
Granted, Grant Date Fair Value |  | $ 0.9 |  |  |
Awarded, Grant Date Fair Value |  | $ 0.7 |  |  |
[1] | Shares granted include accrued dividends.
[2] | Shares granted include accrued dividends.

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- Definition Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Shares of original grant unearned (not paid out), a reduction to non-vested shares balance, similar to a forfeiture. + References No definition available. + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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