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Share-Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Schedule of Weighted-Average Assumptions Used to Determine Fair Value of Stock Options | The fair values of the options granted during the years ended December 31, 2020, 2019, and 2018 have been estimated at the grant date using the Black-Scholes option-pricing model with the following weighted-average assumptions:
| For the Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Expected volatility | 24.8 | % |  | 25.3 | % |  | 29.2 | %
Risk-free interest rate | 1.0 | % |  | 2.7 | % |  | 2.7 | %
Expected life (years) | 7.1 |  | 7.1 |  | 7.1
Dividend yield | 2.0 | % |  | 2.1 | % |  | 2.2 | %
The fair value of the SARs granted in conjunction with the EHHI acquisition has been estimated using the Black-Scholes option-pricing model with the following weighted-average assumptions:
| As of December 31, 2019
Expected volatility | 38.6 | %
Risk-free interest rate | 1.5 | %
Expected life (years) | 0.3
Dividend yield | — | %
Schedule of Stock Option Activity | A summary of our stock option activity and related information is as follows:
| Shares (In Thousands) |  | Weighted- Average Exercise Price per Share |  | Weighted- Average Remaining Life (Years) |  | Aggregate Intrinsic Value (In Millions)
Outstanding, December 31, 2019 | 565 |  |  | $ | 43.02 |  |  |  |  |
Granted | 113 |  |  | 76.54 |  |  |  |  |
Exercised | (50) |  |  | 22.53 |  |  |  |  |
Outstanding, December 31, 2020 | 628 |  |  | 50.65 |  |  | 6.4 |  | $ | 20.1 |
Exercisable, December 31, 2020 | 413 |  |  | 41.10 |  |  | 5.3 |  | 17.2 |
Schedule of Restricted Stock Activity | A summary of our issued restricted stock awards is as follows (share information in thousands):
| Shares |  | Weighted-Average Grant Date Fair Value
Nonvested shares at December 31, 2019 | 818 |  |  | $ | 49.49 |
Granted | 555 |  |  | 61.81 |
Vested | (609) |  |  | 45.33 |
Forfeited | (33) |  |  | 62.04 |
Nonvested shares at December 31, 2020 | 731 |  |  | 61.75 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: 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) -URI http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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