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v3.21.2

Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Millions | Total | Common Stock | Additional Paid in Capital | Retained Earnings | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2019 | $ 3,071.0 | $ 0.9 | $ 524.8 | $ 2,704.8 | $ (159.5)
Beginning Balance (in shares) at Dec. 31, 2019 |  | 94,655 |  |  |
Common stock withheld and retired to cover taxes on vested stock awards | (10.4) | $ 0.0 | (0.8) | (9.6) | 0.0
Common stock withheld and retired to cover taxes on vested stock awards (in shares) |  | (107) |  |  |
Common stock dividends declared | (150.5) | $ 0.0 | 0.0 | (150.5) | 0.0
Share-based compensation | 18.7 | $ 0.0 | 18.7 | 0.0 | 0.0
Share-based compensation expense (in shares) |  | 287 |  |  |
Other | (0.1) | $ 0.0 | 0.0 | (0.1) | 0.0
Comprehensive income | 204.4 | 0.0 | 0.0 | 198.3 | 6.1
Ending Balance at Jun. 30, 2020 | 3,133.1 | $ 0.9 | 542.7 | 2,742.9 | (153.4)
Ending Balance (in shares) at Jun. 30, 2020 |  | 94,835 |  |  |
Beginning Balance at Mar. 31, 2020 | 3,149.9 | $ 0.9 | 534.9 | 2,771.1 | (157.0)
Beginning Balance (in shares) at Mar. 31, 2020 |  | 94,848 |  |  |
Common stock withheld and retired to cover taxes on vested stock awards | (10.4) | $ 0.0 | (0.8) | (9.6) | 0.0
Common stock withheld and retired to cover taxes on vested stock awards (in shares) |  | (106,000) |  |  |
Common stock dividends declared | (75.3) | $ 0.0 | 0.0 | (75.3) | 0.0
Share-based compensation | 8.6 | $ 0.0 | 8.6 | 0.0 | 0.0
Share-based compensation expense (in shares) |  | 93 |  |  |
Comprehensive income | 60.3 | $ 0.0 | 0.0 | 56.7 | 3.6
Ending Balance at Jun. 30, 2020 | 3,133.1 | $ 0.9 | 542.7 | 2,742.9 | (153.4)
Ending Balance (in shares) at Jun. 30, 2020 |  | 94,835 |  |  |
Beginning Balance at Dec. 31, 2020 | 3,246.3 | $ 0.9 | 554.4 | 2,835.5 | (144.5)
Beginning Balance (in shares) at Dec. 31, 2020 |  | 94,830 |  |  |
Common stock withheld and retired to cover taxes on vested stock awards | (10.5) | $ (0.1) | (0.6) | (9.8) | 0.0
Common stock withheld and retired to cover taxes on vested stock awards (in shares) |  | (77) |  |  |
Common stock dividends declared | (190.9) | $ 0.0 | 0.0 | (190.9) | 0.0
Share-based compensation | 20.8 | $ 0.2 | 20.7 | (0.1) | 0.0
Share-based compensation expense (in shares) |  | 226 |  |  |
Comprehensive income | 378.6 | $ 0.0 | 0.0 | 373.8 | 4.8
Ending Balance at Jun. 30, 2021 | 3,444.3 | $ 1.0 | 574.5 | 3,008.5 | (139.7)
Ending Balance (in shares) at Jun. 30, 2021 |  | 94,979 |  |  |
Beginning Balance at Mar. 31, 2021 | 3,331.2 | $ 1.0 | 566.0 | 2,906.3 | (142.1)
Beginning Balance (in shares) at Mar. 31, 2021 |  | 94,994 |  |  |
Common stock withheld and retired to cover taxes on vested stock awards | (10.4) | $ (0.1) | (0.6) | (9.7) | 0.0
Common stock withheld and retired to cover taxes on vested stock awards (in shares) |  | (76) |  |  |
Common stock dividends declared | (95.4) | $ 0.0 | 0.0 | (95.4) | 0.0
Share-based compensation | 9.2 | $ 0.1 | 9.1 | 0.0 | 0.0
Share-based compensation expense (in shares) |  | 61 |  |  |
Comprehensive income | 209.7 | $ 0.0 | 0.0 | 207.3 | 2.4
Ending Balance at Jun. 30, 2021 | $ 3,444.3 | $ 1.0 | $ 574.5 | $ 3,008.5 | $ (139.7)
Ending Balance (in shares) at Jun. 30, 2021 |  | 94,979 |  |  |

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