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v3.21.1

Changes In Equity And Accumulated Other Comprehensive Loss (Summary Of Changes In Equity) (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | $ 1,531.1 | $ 1,476.3
Net income | 108.4 | 62.8
Cash dividends | (25.0) | (25.5)
Reacquisition on open market |  | (70.0)
Stock-based compensation expense | 6.3 | 5.8
Changes in pension and postretirement plan assets and benefit obligation, net of tax | 4.9 | 3.6
Currency translation adjustment | (34.9) | (45.5)
Balance, end of period | 1,598.0 | 1,407.5
Impact from settlement of share-based awards, net of shares acquired | $ 7.2 | $ 0.0
Dividends per share (in dollars per share) | $ 0.43 | $ 0.43
Reacquisition on open market (in shares) |  | 1,221,233
Common Shares Issued at Par Value |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | $ 72.4 | $ 72.4
Balance, end of period | 72.4 | 72.4
Capital Surplus |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | 330.7 | 315.6
Stock-based compensation expense | 6.3 | 5.8
Balance, end of period | 334.7 | 315.4
Impact from settlement of share-based awards, net of shares acquired | (2.3) | (6.0)
Retained Earnings |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | 2,192.8 | 2,112.2
Net income | 108.4 | 62.8
Cash dividends | (25.0) | (25.5)
Balance, end of period | 2,276.2 | 2,149.5
Accumulated Other Comprehensive Loss |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | (466.4) | (483.7)
Changes in pension and postretirement plan assets and benefit obligation, net of tax | 4.9 | 3.6
Currency translation adjustment | (35.7) | (45.2)
Balance, end of period | (497.2) | (525.3)
Treasury Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | (600.6) | (542.8)
Reacquisition on open market |  | (70.0)
Balance, end of period | (591.1) | (606.8)
Impact from settlement of share-based awards, net of shares acquired | 9.5 | 6.0
Total Share- holders’ Equity |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | 1,528.9 | 1,473.7
Net income | 108.4 | 62.8
Cash dividends | (25.0) | (25.5)
Reacquisition on open market |  | (70.0)
Stock-based compensation expense | 6.3 | 5.8
Changes in pension and postretirement plan assets and benefit obligation, net of tax | 4.9 | 3.6
Currency translation adjustment | (35.7) | (45.2)
Balance, end of period | 1,595.0 | 1,405.2
Impact from settlement of share-based awards, net of shares acquired | 7.2 | 0.0
Non-controlling Interest |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Balance, beginning of period | 2.2 | 2.6
Net income | 0.0 | 0.0
Currency translation adjustment | 0.8 | (0.3)
Balance, end of period | $ 3.0 | $ 2.3

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