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Calculation of Basic and Diluted Net (Loss) Earnings Per Common Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended | 1 Months Ended
--- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Oct. 31, 2011 Diversey [Member]
Numerator |  |  |  |  |  |  |  |  |
Net (loss) earnings available to common stockholders | $ (1,232.4) |  | $ 73.7 |  | $ (1,252.0) |  | $ 198.4 |  |
Distributed and allocated undistributed net earnings to non-vested restricted stockholders | (0.1) |  | (0.4) |  | (0.4) |  | (1.2) |  |
Distributed and allocated undistributed net (loss) earnings to common stockholders | (1,232.5) |  | 73.3 |  | (1,252.4) |  | 197.2 |  |
Distributed net earnings-dividends paid to common stockholders | (25.1) |  | (20.7) |  | (75.3) |  | (62.1) |  |
Allocation of undistributed net (loss) earnings to common stockholders | (1,257.6) |  | 52.6 |  | (1,327.7) |  | 135.1 |  |
Denominator |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding-basic | 193.2 | [1],[2] | 159.3 | [1],[2] | 192.7 | [1],[2] | 159.1 | [1],[2] |
Basic net (loss) earnings per common share: |  |  |  |  |  |  |  |  |
Distributed net earnings to common stockholders | $ 0.13 |  | $ 0.13 |  | $ 0.39 |  | $ 0.39 |  |
Allocated undistributed net (loss) earnings to common stockholders | $ (6.51) |  | $ 0.33 |  | $ (6.89) |  | $ 0.85 |  |
Net (loss) earnings per common share - basic | $ (6.38) |  | $ 0.46 |  | $ (6.50) |  | $ 1.24 |  |
Numerator |  |  |  |  |  |  |  |  |
Distributed and allocated undistributed net (loss) earnings to common stockholders | (1,232.5) |  | 73.3 |  | (1,252.4) |  | 197.2 |  |
Add: Allocated undistributed net earnings to non-vested restricted stockholders |  |  | 0.4 |  |  |  | 0.9 |  |
Less: Undistributed net earnings reallocated to non-vested restricted stockholders |  |  | (0.3) |  |  |  | (0.8) |  |
Net (loss) earnings available to common stockholders-diluted | $ (1,232.5) | [1],[2] | $ 73.4 | [1],[2] | $ (1,252.4) | [1],[2] | $ 197.3 | [1],[2] |
Denominator(1)(2) |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding-basic | 193.2 | [1],[2] | 159.3 | [1],[2] | 192.7 | [1],[2] | 159.1 | [1],[2] |
Effect of assumed issuance of Settlement agreement shares |  |  | 18.0 | [1],[2] |  |  | 18.0 | [1],[2] |
Effect of non-vested restricted stock and restricted stock units |  |  | 0.6 |  |  |  | 0.4 |  |
Weighted average number of common shares outstanding-diluted | 193.2 |  | 177.9 |  | 192.7 |  | 177.5 |  |
Net (loss) earnings per common share - Diluted | $ (6.38) |  | $ 0.41 |  | $ (6.50) |  | $ 1.11 |  |
Number of common stock shares received by Diversey stockholders |  |  |  |  |  |  |  |  | 31.7
Common stock reserved | 18 |  |  |  | 18 |  |  |  |
[1] | Includes the weighted-average share impact in 2012 of 31.7 million shares issued as part of the total consideration paid in connection with the acquisition of Diversey on October 3, 2011.
[2] | Provides for the following items if their inclusion is dilutive: (i) the effect of assumed issuance of 18 million shares of common stock reserved for the Settlement agreement as defined and (ii) the effect of non-vested restricted stock and restricted stock units using the treasury stock method. In calculating diluted net (loss) earnings per common share for 2012, our diluted weighted average number of common shares outstanding excludes the effect of the items mentioned above as the effect was anti-dilutive.

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