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v3.23.2

Share-based Payments (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Compensation Costs Related to Share-Based Payments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended |  | Six months ended
​ | ​ | June 30, | ​ | June 30,
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022
Selling, general and administrative: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Stock option compensation expense | ​ | $ | 1.6 | ​ | $ | 3.0 | ​ | $ | 4.3 | ​ | $ | 5.6
Equity-classified share units | ​ | ​ | 9.4 | ​ | ​ | 8.8 | ​ | ​ | 12.9 | ​ | ​ | 11.7
Liability-classified share units | ​ | ​ | 0.5 | ​ | ​ | 1.1 | ​ | ​ | 0.5 | ​ | ​ | 0.3
Employee share purchase plan - employer contributions | ​ |  | 0.8 | ​ |  | 0.7 | ​ |  | 1.3 | ​ |  | 1.4
​ | ​ | ​ | 12.3 | ​ | ​ | 13.6 | ​ | ​ | 19.0 | ​ | ​ | 19.0
Acquisition-related and integration costs: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​
Acceleration of share-based payments expense | ​ | ​ | 0.9 | ​ | ​ | — | ​ | ​ | 5.9 | ​ | ​ | —
Share-based continuing employment costs | ​ |  | 0.9 | ​ |  | 2.1 | ​ |  | 1.9 | ​ |  | 4.2
​ | ​ |  | 1.8 | ​ |  | 2.1 | ​ |  | 7.8 | ​ |  | 4.2
​ | ​ | $ | 14.1 | ​ | $ | 15.7 | ​ | $ | 26.8 | ​ | $ | 23.2
Summary of Stock Option Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Stock options | ​ | Premium-priced stock options
​ | ​ | ​ | ​ | ​ | ​ | WA | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | WA | ​ | ​ | ​
​ | Common | ​ | WA | ​ | remaining | ​ | Aggregate | ​ | Common | ​ | WA | ​ | remaining | ​ | Aggregate
​ | shares under | ​ | exercise | ​ | contractual | ​ | intrinsic | ​ | shares under | ​ | exercise | ​ | contractual | ​ | intrinsic
​ | option |  | price |  | life (in years) |  | value |  | option |  | price |  | life (in years) |  | value
Outstanding, December 31, 2022 | 2,730,295 | ​ | $ | 46.88 | ​ | ​ | 7.3 | ​ | $ | 31.2 | ​ | 1,118,432 | ​ | $ | 91.26 | ​ | ​ | 4.7 | ​ | $ | —
Granted | — | ​ | ​ | — | ​ |  | — | ​ |  | — | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Assumed in IAA acquisition (Note 5) | 187,727 | ​ | ​ | 50.96 | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Exercised | (101,074) | ​ | ​ | 38.59 | ​ | ​ | — | ​ | ​ | 1.7 | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Forfeited | (61,935) | ​ | ​ | 45.96 | ​ |  | — | ​ |  | — | ​ | (54,423) | ​ | ​ | 91.12 | ​ |  | — | ​ |  | —
Expired | (6,614) | ​ |  | 61.55 | ​ |  | — | ​ |  | — | ​ | — | ​ |  | — | ​ |  | — | ​ |  | —
Outstanding, June 30, 2023 | 2,748,399 | ​ | $ | 47.44 | ​ | ​ | 6.4 | ​ | $ | 35.6 | ​ | 1,064,009 | ​ | $ | 91.27 | ​ | ​ | 4.1 | ​ | $ | —
Exercisable, June 30, 2023 | 2,070,214 | ​ | $ | 44.03 | ​ | ​ | 5.8 | ​ | $ | 33.6 | ​ | 43,242 | ​ | $ | 91.21 | ​ |  | 1.7 | ​ | $ | —
Summary of Share Unit Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Equity-classified awards | ​ | Liability-classified awards
​ | ​ | PSUs | ​ | PSUs with Market Conditions | ​ | RSUs | ​ | DSUs
​ | ​ | ​ | ​ | WA grant | ​ | ​ | ​ | WA grant | ​ | ​ | ​ | WA grant | ​ | ​ | ​ | ​ | WA grant
​ | ​ | ​ | ​ | date fair | ​ | ​ | ​ | date fair | ​ | ​ | ​ | date fair | ​ | ​ | ​ | ​ | date fair
​ |  | Number |  | value |  | Number |  | value |  | Number |  | value |  | ​ | Number |  | value
Outstanding, December 31, 2022 |  | 662,634 | ​ | $ | 51.71 | ​ | 102,879 | ​ | $ | 66.08 | ​ | 68,024 | ​ | $ | 58.32 |  | ​ | 108,365 | ​ | $ | 39.35
Granted |  | 12,027 | ​ |  | 57.04 | ​ | — | ​ |  | — | ​ | 333,778 | ​ |  | 52.11 |  | ​ | 12,300 | ​ |  | 52.55
Assumed in IAA acquisition (Note 5) |  | — | ​ |  | — | ​ | — | ​ |  | — | ​ | 366,379 | ​ |  | 52.79 |  | ​ | — | ​ |  | —
Vested and settled |  | (283,086) | ​ |  | 42.23 | ​ | — | ​ |  | — | ​ | (233,828) | ​ |  | 52.85 |  | ​ | — | ​ |  | —
Forfeited |  | (15,323) | ​ |  | 58.60 | ​ | (2,691) | ​ |  | 65.45 | ​ | (5,416) | ​ |  | 60.07 |  | ​ | — | ​ |  | —
Outstanding at June 30, 2023 |  | 376,252 | ​ | $ | 58.73 | ​ | 100,188 | ​ | $ | 66.10 | ​ | 528,937 | ​ | $ | 52.97 |  | ​ | 120,665 | ​ | $ | 40.70
Employee Stock Option [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Significant Assumptions Used to Estimate the Fair Value of Stock Options | ​
​ | ​ | ​ | ​
Six months ended June 30, |  | 2022 |
Risk free interest rate |  | 2.2 | %
Expected dividend yield |  | 1.74 | %
Expected lives of the stock options |  | 4 | years
Expected volatility |  | 31.7 | %
Premium-priced Stock Options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Significant Assumptions Used to Estimate the Fair Value of Stock Options | ​
​ | ​ | ​ | ​
Six months ended June 30, |  | 2022 | ​
Risk free interest rate |  | 3.0 | %
Expected dividend yield |  | 1.63 | %
Expected lives of the stock options | ​ | 4 | years
Expected volatility |  | 30.2 | %
Performance Share Units With Market Conditions [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Significant Assumptions Used to Estimate the Fair Value of Stock Options | ​
​ | ​ | ​ | ​
Six months ended June 30, |  | 2022 | ​
Risk free interest rate |  | 2.7 | %
Expected dividend yield |  | 1.63 | %
Expected lives of the PSUs | ​ | 2 | years
Expected volatility |  | 33.4 | %
Average expected volatility of comparable companies | ​ | 34.4 | %
IAA | Employee Stock Option [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Significant Assumptions Used to Estimate the Fair Value of Stock Options | ​
​ | ​ | ​ | ​
Six months ended June 30, |  | 2023 |
Risk free interest rate |  | 3.9 | %
Expected dividend yield |  | 2.05 | %
Expected lives of the stock options |  | 2 | years
Expected volatility |  | 33.3 | %

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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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (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 -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. 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