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v3.20.4

Changes in Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Nov. 30, 2020 | Nov. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | $ 2,127.5 | $ 1,918.9
Net income | 59.6 | 57.0
Other comprehensive income (loss) | 6.2 | 3.8
Share-based payment amortization, issuances, and cancellations | 4.7 | 12.6
Employee stock purchase plan issuances | 0.3 | 0.2
Cash dividends of $0.13 per share paid on common stock | (5.0) | (5.2)
Repurchases of common stock | (256.1) |
Ending balance | $ 1,937.0 | $ 1,987.3
Cash dividends paid (usd per share) | $ 0.13 | $ 0.13
Common Stock Outstanding |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | $ 0.5 | $ 0.5
Beginning balance (shares) | 38.9 | 39.5
Share-based payment amortization, issuances, and cancellations (shares) | 0.1 | 0.0
Repurchases of common stock (shares) | (2.6) |
Ending balance | $ 0.5 | $ 0.5
Ending balance (shares) | 36.4 | 39.5
Paid-in Capital |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | $ 963.6 | $ 930.0
Share-based payment amortization, issuances, and cancellations | 4.7 | 12.6
Employee stock purchase plan issuances | 0.3 | 0.2
Ending balance | 968.6 | 942.8
Retained Earnings |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | 2,523.3 | 2,295.8
Net income | 59.6 | 57.0
Cash dividends of $0.13 per share paid on common stock | (5.0) | (5.2)
Ending balance | 2,577.7 | 2,347.6
Accumulated Other Comprehensive Loss |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | (132.7) | (151.4)
Other comprehensive income (loss) | 6.2 | 3.8
Ending balance | (126.5) | (147.6)
Treasury Stock, at cost |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | (1,227.2) | (1,156.0)
Repurchases of common stock | (256.1) |
Ending balance | (1,483.3) | $ (1,156.0)
Cumulative effect of adoption of ASC 326 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | (0.2) |
Cumulative effect of adoption of ASC 326 | Retained Earnings |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance | $ (0.2) |

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