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v3.20.1

Net Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Numerator: |  |
Net earnings | $ 126.6 | $ 57.5
Distributed and allocated undistributed net earnings to unvested restricted stockholders | (0.1) | (0.1)
Distributed and allocated undistributed net earnings | 126.5 | 57.4
Distributed net earnings - dividends paid to common stockholders | (24.9) | (24.8)
Allocation of undistributed net earnings to common stockholders | $ 101.6 | $ 32.6
Denominator: |  |
Weighted average number of common shares outstanding - basic (in shares) | 154.5 | 154.8
Basic net earnings per common share: |  |
Distributed net earnings (in dollars per share) | $ 0.16 | $ 0.16
Allocated undistributed net earnings (loss) to common stockholders (in dollars per share) | 0.66 | 0.21
Net earnings per common share - basic (in dollars per share) | $ 0.82 | $ 0.37
Numerator: |  |
Distributed and allocated undistributed net earnings | $ 126.5 | $ 57.4
Add: Allocated undistributed net earnings to unvested restricted stockholders | 0.1 | 0.1
Less: Undistributed net earnings reallocated to unvested restricted stockholders | (0.1) | (0.1)
Net earnings available to common stockholders - diluted | $ 126.5 | $ 57.4
Denominator: |  |
Weighted average number of common shares outstanding - basic (in shares) | 154.5 | 154.8
Effect of contingently issuable shares (in shares) | 0.1 | 0.2
Effect of unvested restricted stock units (in shares) | 0.2 | 0.2
Weighted average number of common shares outstanding - diluted under two-class (in shares) | 154.8 | 155.2
Effect of unvested restricted stock - participating security (in shares) | 0.0 | 0.2
Weighted average number of common shares outstanding - diluted under treasury stock (in shares) | 154.8 | 155.4
Diluted net earnings per common share (in dollars per share) | $ 0.82 | $ 0.37

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