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v3.19.3

Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Millions | Total | Common stock | Retained earnings | Accumulated other comprehensive income (loss)
--- | --- | --- | --- | ---
Equity, beginning balance at Dec. 31, 2017 | $ 1,427.6 | $ 687.0 | $ 752.6 | $ (12.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income | 119.8 |  | 119.8 |
Reclassification of the income tax effects of the Tax Cut and Jobs Act from AOCI | 0.0 |  | 3.1 | (3.1)
Other comprehensive income (loss), net of tax expense | (24.3) |  |  | (24.3)
Common stock transactions: |  |  |  |
Common shares purchased and retired | (1.0) | (1.0) |  |
Common shares issued | 173.3 | 173.3 |  |
Non-vested common shares issued | 0.0 | 0.0 |  |
Non-vested common shares forfeited or canceled | 0.0 | 0.0 |  |
Stock options exercised, net of share tendered in payment of option price and income tax withholding amounts | 1.9 | 1.9 |  |
Stock-based compensation expense | 4.3 | 4.3 |  |
Common cash dividend declared | (47.2) |  | (47.2) |
Equity, ending balance at Sep. 30, 2018 | 1,654.4 | 865.5 | 828.3 | (39.4)
Equity, beginning balance at Jun. 30, 2018 | 1,458.3 | 690.7 | 802.6 | (35.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income | 41.4 |  | 41.4 |
Other comprehensive income (loss), net of tax expense | (4.4) |  |  | (4.4)
Common stock transactions: |  |  |  |
Common shares purchased and retired | (0.1) | (0.1) |  |
Common shares issued | 173.3 | 173.3 |  |
Non-vested common shares forfeited or canceled | 0.0 | 0.0 |  |
Stock options exercised, net of share tendered in payment of option price and income tax withholding amounts | 0.3 | 0.3 |  |
Stock-based compensation expense | 1.3 | 1.3 |  |
Common cash dividend declared | (15.7) |  | (15.7) |
Equity, ending balance at Sep. 30, 2018 | 1,654.4 | 865.5 | 828.3 | (39.4)
Equity, beginning balance at Dec. 31, 2018 | 1,693.9 | 866.7 | 851.8 | (24.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income | 128.6 |  | 128.6 |
Other comprehensive income (loss), net of tax expense | 38.0 |  |  | 38.0
Common stock transactions: |  |  |  |
Common shares purchased and retired | (2.5) | (2.5) |  |
Common shares issued | 176.1 | 176.1 |  |
Non-vested common shares issued | 0.0 | 0.0 |  |
Non-vested common shares forfeited or canceled | 0.0 | 0.0 |  |
Stock options exercised, net of share tendered in payment of option price and income tax withholding amounts | 0.9 | 0.9 |  |
Stock-based compensation expense | 6.6 | 6.6 |  |
Common cash dividend declared | (59.0) |  | (59.0) |
Equity, ending balance at Sep. 30, 2019 | 1,982.6 | 1,047.8 | 921.4 | 13.4
Equity, beginning balance at Jun. 30, 2019 | 1,948.6 | 1,045.6 | 892.5 | 10.5
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income | 49.1 |  | 49.1 |
Other comprehensive income (loss), net of tax expense | 2.9 |  |  | 2.9
Common stock transactions: |  |  |  |
Common shares purchased and retired | 0.0 | 0.0 |  |
Non-vested common shares issued | 0.0 | 0.0 |  |
Non-vested common shares forfeited or canceled | 0.0 | 0.0 |  |
Stock options exercised, net of share tendered in payment of option price and income tax withholding amounts | 0.2 | 0.2 |  |
Stock-based compensation expense | 2.0 | 2.0 |  |
Common cash dividend declared | (20.2) |  | (20.2) |
Equity, ending balance at Sep. 30, 2019 | $ 1,982.6 | $ 1,047.8 | $ 921.4 | $ 13.4

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