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Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
SARs/Stock Options Roll Forward | The following table summarizes the Company's SARs activity during 2022:
(Shares in thousands) |  | Number of SARs |  | Weighted- average Exercise Price Per Share |  | Aggregate Intrinsic Value (thousands) |  | Weighted- average Remaining Term (Years)
Outstanding at December 31, 2021 |  | 260 |  |  | $ | 51.55 |  |  |  |  |
Granted |  | 45 |  |  | 80.85 |  |  |  |  |
Exercised |  | (49) |  |  | 42.83 |  |  |  |  |
Cancelled |  | — |  |  | — |  |  |  |  |
Outstanding at December 31, 2022 |  | 256 |  |  | 58.38 |  |  | $ | 7,448 |  |  | 3.8
Vested and expected to vest as of December 31, 2022 |  | 256 |  |  | 58.38 |  |  | 7,448 |  |  | 3.8
Exercisable at December 31, 2022 |  | 160 |  |  | 50.56 |  |  | 5,928 |  |  | 2.8
SARs/Stock Options Nonvested Share Activity | A summary of the status and changes of shares subject to SARs and the related average price per share follows:
(Shares in thousands) |  | Number of SARs |  | Weighted- average Grant Date Fair Value
Nonvested as of December 31, 2021 |  | 100 |  |  | $ | 17.98 |
Granted |  | 45 |  |  | 25.87 |
Vested |  | (50) |  |  | 17.47 |
Cancelled |  | — |  |  | — |
Nonvested as of December 31, 2022 |  | 95 |  |  | $ | 21.97 |
SARS/Stock Options, Valuation Assumptions | The fair value of the SARs was estimated on the grant date using the Black-Scholes pricing model with the following assumptions:
|  | 2022 |  | 2021 |  | 2020
Risk-free interest rate |  | 1.56 | % |  | 0.57 | % |  | 1.41 | %
Dividend yield |  | 0.6 | % |  | 0.7 | % |  | 0.9 | %
Volatility |  | 38.5 | % |  | 37.6 | % |  | 31.8 | %
Expected lives (in years) |  | 4.4 |  | 4.6 |  | 4.8
Summary of Restricted Stock Activity | The following table summarizes the stock-settled RSU activity during 2022:
(Shares in thousands) |  | Number of Shares |  | Weighted- average Grant Date Fair Value
Outstanding at December 31, 2021 |  | 162 |  |  | $ | 59.23 |
Granted |  | 61 |  |  | 80.96 |
Vested |  | (49) |  |  | 58.29 |
Forfeited |  | (9) |  |  | 64.91 |
Outstanding at December 31, 2022 |  | 165 |  |  | $ | 67.31 |
Schedule of Share-based Compensation, Performance Based Restricted Stock Unit Activity | The following table summarizes the activity related to performance-based RSUs during 2022:
(Shares in thousands) |  | Number of Shares |  | Weighted- average Grant Date Fair Value
Outstanding at December 31, 2021 |  | 119 |  |  | $ | 70.77 |
Granted |  | 38 |  |  | 95.44 |
Vested |  | (43) |  |  | 69.84 |
Forfeited |  | (3) |  |  | 79.01 |
Outstanding at December 31, 2022 |  | 111 |  |  | $ | 79.31 |

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- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + 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)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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