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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2017
Stock-based compensation |
Schedule of Compensation Expense | Stock-based compensation expense is primarily included in selling and administrative expenses in the Condensed Consolidated Statements of Earnings and is as follows:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Total pre-tax stock-based compensation |  | $ | 5.2 |  |  | $ | 4.1 |  |  | $ | 15.9 |  |  | $ | 12.7 |
Schedule of Stock-based Payment Award Grants | The Company awarded the following stock-based compensation grants:
|  | Nine Months Ended September 30, 2017
Stock options |  | 364,675 |
Restricted stock |  | 65,637 |
Performance shares |  | 47,285 |
Restricted stock units |  | 12,952 |
Schedule of weighted-average assumptions for stock options | The weighted-average assumptions used in the determination of fair value for stock option awards in 2017 and 2016 were as follows:
|  | 2017 |  | 2016
Expected dividend yield |  | 1.3 | % |  | 1.4 | %
Expected life in years |  | 5.58 |  |  | 5.61 |
Expected volatility |  | 25.6 | % |  | 27.5 | %
Risk-free interest rate |  | 1.9 | % |  | 1.4 | %
Weighted-average fair value per share |  | $ | 24.57 |  |  | $ | 19.30 |
Stock options |
Stock-based compensation |
Schedule of Compensation Expense | Stock-based compensation expense related to stock options were as follows:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Pre-tax stock-based compensation |  | $ | 2.1 |  |  | $ | 1.6 |  |  | 5.9 |  |  | 4.6 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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