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v3.19.2

Change in Shareholders' Equity (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | $ 1,369.5 | $ 1,396.3 | $ 1,305.3 | $ 1,279.9 | $ 1,396.3 | $ 1,279.9
Cumulative effect of new accounting principle in period of adoption |  |  |  | 11.4 |  |
Net income | 66.1 | 55.4 | 56.1 | 43.6 | $ 121.5 | 99.7
Activity related to stock-based compensation | 19.7 | 10.7 | 12.2 | 7.2 |  |
Share purchased under share repurchase program (in shares) |  |  |  |  | 800,000 |
Shares purchased under share repurchase program |  | (83.1) | (22.9) | (47.9) | $ (83.1) |
Dividends declared | (11.4) | (10.6) | (20.9) | (10.4) |  |
Other comprehensive income, net of tax | 1.2 | 0.8 | (47.9) | 21.5 | 2.0 | (26.4)
Balance | 1,445.1 | 1,369.5 | 1,281.9 | 1,305.3 | 1,445.1 | 1,281.9
Common Stock [Member] |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8
Balance (in shares) | 75,300,000 | 75,300,000 | 75,300,000 | 75,200,000 | 75,300,000 | 75,200,000
Shares issued under stock plans (in shares) | 0 | 0 | 0 | 100,000 |  |
Activity related to stock-based compensation | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0 |  |
Balance | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8 | $ 18.8
Balance (in shares) | 75,300,000 | 75,300,000 | 75,300,000 | 75,300,000 | 75,300,000 | 75,300,000
Additional Paid-in Capital [Member] |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | $ 278.5 | $ 282.0 | $ 308.5 | $ 309.3 | $ 282.0 | $ 309.3
Activity related to stock-based compensation | (5.1) | (3.5) | (3.8) | (0.8) |  |
Balance | 273.4 | 278.5 | 304.7 | 308.5 | 273.4 | 304.7
Treasury Stock [Member] |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | $ (172.6) | $ (103.7) | $ (149.0) | $ (109.1) | $ (103.7) | $ (109.1)
Balance (in shares) | 1,800,000 | 1,200,000 | 1,700,000 | 1,300,000 | 1,200,000 | 1,300,000
Shares issued under stock plans (in shares) | (200,000) | (200,000) | (200,000) | (100,000) |  |
Activity related to stock-based compensation | $ 24.8 | $ 14.2 | $ 16.0 | $ 8.0 |  |
Share purchased under share repurchase program (in shares) |  | 800,000 | 300,000 | 500,000 |  |
Shares purchased under share repurchase program |  | $ (83.1) | $ (22.9) | $ (47.9) |  |
Balance | $ (147.8) | $ (172.6) | $ (155.9) | $ (149.0) | $ (147.8) | $ (155.9)
Balance (in shares) | 1,600,000 | 1,800,000 | 1,800,000 | 1,700,000 | 1,600,000 | 1,800,000
Retained Earnings [Member] |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | $ 1,398.2 | $ 1,353.4 | $ 1,222.8 | $ 1,178.2 | $ 1,353.4 | $ 1,178.2
Cumulative effect of new accounting principle in period of adoption |  |  |  | 11.4 |  |
Net income | 66.1 | 55.4 | 56.1 | 43.6 |  |
Dividends declared | 11.4 | 10.6 | (20.9) | (10.4) |  |
Balance | 1,452.9 | 1,398.2 | 1,258.0 | 1,222.8 | 1,452.9 | 1,258.0
AOCI Attributable to Parent [Member] |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance | (153.4) | (154.2) | (95.8) | (117.3) | (154.2) | (117.3)
Other comprehensive income, net of tax | 1.2 | 0.8 | (47.9) | 21.5 |  |
Balance | $ (152.2) | $ (153.4) | $ (143.7) | $ (95.8) | $ (152.2) | $ (143.7)

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