Condensed Consolidated and Combined Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Millions | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] |
Beginning balance (in shares) at Dec. 31, 2022 | | 165,300 | | | |
Beginning balance at Dec. 31, 2022 | $ 2,731.7 | $ 1.7 | $ 2,372.3 | $ 457.3 | $ (99.6) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 93.8 | | | 93.8 | |
Other Comprehensive Income (Loss), Net of Tax | 3.6 | | | | 3.6 |
Dividends, Common Stock | (29.3) | | | (29.3) | |
Share repurchases (in shares) | | (300) | | | |
Share repurchases | (13.2) | | (13.2) | | |
Exercise of options, net of shares tendered for payment (in shares) | | 200 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 5.1 | | 5.1 | | |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | 0 | | | | |
Issuance of restricted shares, net of cancellations | | 700 | | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (7.5) | $ (0.2) | (7.5) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 5.7 | | 5.7 | | |
Ending balance (in shares) at Mar. 31, 2023 | | 165,700 | | | |
Ending balance at Mar. 31, 2023 | 2,789.9 | $ 1.7 | 2,362.4 | 521.8 | (96) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 112.9 | | | 112.9 | |
Other Comprehensive Income (Loss), Net of Tax | (4.7) | | | | (4.7) |
Dividends, Common Stock | (29.2) | | | (29.2) | |
Exercise of options, net of shares tendered for payment (in shares) | | 100 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 1.8 | | 1.8 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (0.7) | | (0.7) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 5.7 | | 5.7 | | |
Ending balance (in shares) at Jun. 30, 2023 | | 165,800 | | | |
Ending balance at Jun. 30, 2023 | 2,875.7 | $ 1.7 | 2,369.2 | 605.5 | (100.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 105.5 | | | 105.5 | |
Other Comprehensive Income (Loss), Net of Tax | (16) | | | | (16) |
Dividends, Common Stock | $ (29.1) | | | (29.1) | |
Share repurchases (in shares) | (300) | | | | |
Share repurchases | $ (13.2) | | | | |
Exercise of options, net of shares tendered for payment (in shares) | | 100 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 3.1 | | 3.1 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (0.2) | | (0.2) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 6.1 | | 6.1 | | |
Ending balance (in shares) at Sep. 30, 2023 | | 165,900 | | | |
Ending balance at Sep. 30, 2023 | 2,945.1 | $ 1.7 | 2,378.2 | 681.9 | (116.7) |
Beginning balance (in shares) at Dec. 31, 2023 | | 165,100 | | | |
Beginning balance at Dec. 31, 2023 | 3,142.1 | $ 1.7 | 2,339.1 | 905.3 | (104) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 105.1 | | | 105.1 | |
Other Comprehensive Income (Loss), Net of Tax | (8.6) | | | | (8.6) |
Dividends, Common Stock | (32.1) | | | (32.1) | |
Exercise of options, net of shares tendered for payment (in shares) | | 500 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 10 | | 10 | | |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | 0 | | | | |
Issuance of restricted shares, net of cancellations | | 600 | | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (10.8) | $ (0.2) | (10.8) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 6.6 | | 6.6 | | |
Ending balance (in shares) at Mar. 31, 2024 | | 166,000 | | | |
Ending balance at Mar. 31, 2024 | 3,212.3 | $ 1.7 | 2,344.9 | 978.3 | (112.6) |
Beginning balance (in shares) at Dec. 31, 2023 | | 165,100 | | | |
Beginning balance at Dec. 31, 2023 | $ 3,142.1 | $ 1.7 | 2,339.1 | 905.3 | (104) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Share repurchases (in shares) | (1,500) | | | | |
Share repurchases | $ (100) | | | | |
Ending balance (in shares) at Sep. 30, 2024 | | 164,800 | | | |
Ending balance at Sep. 30, 2024 | 3,283.7 | $ 1.7 | 2,260.3 | 1,131.1 | (109.4) |
Beginning balance (in shares) at Mar. 31, 2024 | | 166,000 | | | |
Beginning balance at Mar. 31, 2024 | 3,212.3 | $ 1.7 | 2,344.9 | 978.3 | (112.6) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 111 | | | 111 | |
Other Comprehensive Income (Loss), Net of Tax | (9.5) | | | | (9.5) |
Dividends, Common Stock | (31.8) | | | (31.8) | |
Exercise of options, net of shares tendered for payment (in shares) | | 200 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 0.3 | | 0.3 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (1.4) | $ 0 | (1.4) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 6.9 | | 6.9 | | |
Ending balance (in shares) at Jun. 30, 2024 | | 166,200 | | | |
Ending balance at Jun. 30, 2024 | 3,287.8 | $ 1.7 | 2,350.7 | 1,057.5 | (122.1) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 105 | | | 105 | |
Other Comprehensive Income (Loss), Net of Tax | 12.7 | | | | 12.7 |
Dividends, Common Stock | (31.4) | | | (31.4) | |
Shares repurchased (in shares) | | (1,500) | | | |
Share repurchases | (100) | | (100) | | |
Exercise of options, net of shares tendered for payment (in shares) | | 100 | | | |
Stock Issued During Period, Value, Stock Options Exercised | 2.5 | | 2.5 | | |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | (0.7) | $ 0 | (0.7) | | |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 7.8 | | 7.8 | | |
Ending balance (in shares) at Sep. 30, 2024 | | 164,800 | | | |
Ending balance at Sep. 30, 2024 | $ 3,283.7 | $ 1.7 | $ 2,260.3 | $ 1,131.1 | $ (109.4) |