Consolidated Statement of Changes in Stockholders' Equity - USD ($)
$ in Millions |
Total |
Cumulative change related to the adoption of ASU 2023-02 |
Cumulative effect, period of adoption, adjusted balance |
Common Stock Including Additional Paid in Capital [Member] |
Common Stock Including Additional Paid in Capital [Member]
Cumulative change related to the adoption of ASU 2023-02
|
Common Stock Including Additional Paid in Capital [Member]
Cumulative effect, period of adoption, adjusted balance
|
Retained earnings |
Retained earnings
Cumulative change related to the adoption of ASU 2023-02
|
Retained earnings
Cumulative effect, period of adoption, adjusted balance
|
Accumulated other comprehensive loss |
Accumulated other comprehensive loss
Cumulative change related to the adoption of ASU 2023-02
|
Accumulated other comprehensive loss
Cumulative effect, period of adoption, adjusted balance
|
| Equity, beginning balance at Dec. 31, 2023 |
$ 3,227.5
|
$ 1.2
|
$ 3,228.7
|
$ 2,448.9
|
$ 0.0
|
$ 2,448.9
|
$ 1,135.1
|
$ 1.2
|
$ 1,136.3
|
$ (356.5)
|
$ 0.0
|
$ (356.5)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
| Net income |
118.4
|
|
|
0.0
|
|
|
118.4
|
|
|
0.0
|
|
|
| Other comprehensive income (loss), net of tax expense |
$ (29.0)
|
|
|
0.0
|
|
|
0.0
|
|
|
(29.0)
|
|
|
| Stock repurchased and retired (in shares) |
45,448
|
|
|
|
|
|
|
|
|
|
|
|
| Non-vested common shares issued (in shares) |
738,098
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited |
73,658
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock transactions: |
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares purchased and retired |
$ (1.1)
|
|
|
(1.1)
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares issued |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares forfeited or canceled |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Stock-based compensation expense |
$ 6.1
|
|
|
6.1
|
|
|
0.0
|
|
|
0.0
|
|
|
| Common dividends (in dollars per share) |
$ 0.94
|
|
|
|
|
|
|
|
|
|
|
|
| Common cash dividend declared |
$ (97.8)
|
|
|
0.0
|
|
|
(97.8)
|
|
|
0.0
|
|
|
| Equity, ending balance at Jun. 30, 2024 |
3,225.3
|
|
|
2,453.9
|
|
|
1,156.9
|
|
|
(385.5)
|
|
|
| Equity, beginning balance at Mar. 31, 2024 |
3,209.7
|
|
|
2,450.7
|
|
|
1,145.9
|
|
|
(386.9)
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
| Net income |
60.0
|
|
|
0.0
|
|
|
60.0
|
|
|
0.0
|
|
|
| Other comprehensive income (loss), net of tax expense |
$ 1.4
|
|
|
0.0
|
|
|
0.0
|
|
|
1.4
|
|
|
| Stock repurchased and retired (in shares) |
1,758
|
|
|
|
|
|
|
|
|
|
|
|
| Non-vested common shares issued (in shares) |
52,735
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited |
61,982
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock transactions: |
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares purchased and retired |
$ 0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares issued |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares forfeited or canceled |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Stock-based compensation expense |
$ 3.2
|
|
|
3.2
|
|
|
0.0
|
|
|
0.0
|
|
|
| Common dividends (in dollars per share) |
$ 0.47
|
|
|
|
|
|
|
|
|
|
|
|
| Common cash dividend declared |
$ (49.0)
|
|
|
0.0
|
|
|
(49.0)
|
|
|
0.0
|
|
|
| Equity, ending balance at Jun. 30, 2024 |
3,225.3
|
|
|
2,453.9
|
|
|
1,156.9
|
|
|
(385.5)
|
|
|
| Equity, beginning balance at Dec. 31, 2024 |
3,304.0
|
|
|
2,459.5
|
|
|
1,166.4
|
|
|
(321.9)
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
| Net income |
121.9
|
|
|
0.0
|
|
|
121.9
|
|
|
0.0
|
|
|
| Other comprehensive income (loss), net of tax expense |
$ 89.0
|
|
|
0.0
|
|
|
0.0
|
|
|
89.0
|
|
|
| Stock repurchased and retired (in shares) |
107,648
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares issued |
$ 0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares issued (in shares) |
480,289
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited |
119,780
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock transactions: |
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares purchased and retired |
$ (3.2)
|
|
|
(3.2)
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares issued |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares forfeited or canceled |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Stock-based compensation expense |
$ 7.2
|
|
|
7.2
|
|
|
0.0
|
|
|
0.0
|
|
|
| Common dividends (in dollars per share) |
$ 0.94
|
|
|
|
|
|
|
|
|
|
|
|
| Common cash dividend declared |
$ (97.1)
|
|
|
0.0
|
|
|
(97.1)
|
|
|
0.0
|
|
|
| Equity, ending balance at Jun. 30, 2025 |
3,421.8
|
|
|
2,463.5
|
|
|
1,191.2
|
|
|
(232.9)
|
|
|
| Equity, beginning balance at Mar. 31, 2025 |
3,361.3
|
|
|
2,460.2
|
|
|
1,168.6
|
|
|
(267.5)
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
| Net income |
71.7
|
|
|
0.0
|
|
|
71.7
|
|
|
0.0
|
|
|
| Other comprehensive income (loss), net of tax expense |
$ 34.6
|
|
|
0.0
|
|
|
0.0
|
|
|
34.6
|
|
|
| Stock repurchased and retired (in shares) |
1,018
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares issued |
$ 0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Stock Issued During Period, Shares, Restricted Stock Award, Forfeited |
69,918
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock transactions: |
|
|
|
|
|
|
|
|
|
|
|
|
| Common shares purchased and retired |
$ 0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Non-vested common shares forfeited or canceled |
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
0.0
|
|
|
| Stock-based compensation expense |
$ 3.3
|
|
|
3.3
|
|
|
0.0
|
|
|
0.0
|
|
|
| Common dividends (in dollars per share) |
$ 0.47
|
|
|
|
|
|
|
|
|
|
|
|
| Common cash dividend declared |
$ (49.1)
|
|
|
0.0
|
|
|
(49.1)
|
|
|
0.0
|
|
|
| Equity, ending balance at Jun. 30, 2025 |
$ 3,421.8
|
|
|
$ 2,463.5
|
|
|
$ 1,191.2
|
|
|
$ (232.9)
|
|
|