Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Common Stock Issued | Additional Paid-in Capital | Accumulated Earnings | AOCL | [1] | Treasury Stock |
Beginning balance (in shares) at Dec. 31, 2021 | | 17 | | | | |
Beginning balance at Dec. 31, 2021 | $ 635.8 | $ 0.2 | $ 633.8 | $ 143.2 | $ (24.3) | $ (117.1) |
Beginning balance (in shares) at Dec. 31, 2021 | | | | | | (2.4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 78.5 | | | 78.5 | | |
Other comprehensive income (loss) | 2.6 | | | | 2.6 | |
Stock-based compensation | 2.8 | | 2.8 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0.5 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | (29.5) | $ 0 | (29.5) | | | |
Treasury stock purchases (in shares) | | | | | | (0.1) |
Treasury stock purchases | (10.4) | | | | | $ (10.4) |
Ending balance (in shares) at Mar. 31, 2022 | | 17.5 | | | | |
Ending balance at Mar. 31, 2022 | 679.8 | $ 0.2 | 607.1 | 221.7 | (21.7) | $ (127.5) |
Ending balance (in shares) at Mar. 31, 2022 | | | | | | (2.5) |
Beginning balance (in shares) at Dec. 31, 2021 | | 17 | | | | |
Beginning balance at Dec. 31, 2021 | 635.8 | $ 0.2 | 633.8 | 143.2 | (24.3) | $ (117.1) |
Beginning balance (in shares) at Dec. 31, 2021 | | | | | | (2.4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 169.6 | | | | | |
Other comprehensive income (loss) | 7.1 | | | | | |
Ending balance (in shares) at Jun. 30, 2022 | | 17.5 | | | | |
Ending balance at Jun. 30, 2022 | 683.9 | $ 0.2 | 610 | 312.8 | (17.2) | $ (221.9) |
Ending balance (in shares) at Jun. 30, 2022 | | | | | | (3.2) |
Beginning balance (in shares) at Dec. 31, 2021 | | 17 | | | | |
Beginning balance at Dec. 31, 2021 | $ 635.8 | $ 0.2 | 633.8 | 143.2 | (24.3) | $ (117.1) |
Beginning balance (in shares) at Dec. 31, 2021 | | | | | | (2.4) |
Ending balance (in shares) at Dec. 31, 2022 | 17.5 | 17.5 | | | | |
Ending balance at Dec. 31, 2022 | $ 756.1 | $ 0.2 | 613.1 | 472.6 | (12.7) | $ (317.1) |
Ending balance (in shares) at Dec. 31, 2022 | (4) | | | | | (4) |
Beginning balance (in shares) at Mar. 31, 2022 | | 17.5 | | | | |
Beginning balance at Mar. 31, 2022 | $ 679.8 | $ 0.2 | 607.1 | 221.7 | (21.7) | $ (127.5) |
Beginning balance (in shares) at Mar. 31, 2022 | | | | | | (2.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 91.1 | | | 91.1 | | |
Other comprehensive income (loss) | 4.5 | | | | 4.5 | |
Stock-based compensation | 3.1 | | 3.1 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | (0.2) | $ 0 | (0.2) | | | |
Treasury stock purchases (in shares) | | | | | | (0.7) |
Treasury stock purchases | (94.4) | | | | | $ (94.4) |
Ending balance (in shares) at Jun. 30, 2022 | | 17.5 | | | | |
Ending balance at Jun. 30, 2022 | $ 683.9 | $ 0.2 | 610 | 312.8 | (17.2) | $ (221.9) |
Ending balance (in shares) at Jun. 30, 2022 | | | | | | (3.2) |
Beginning balance (in shares) at Dec. 31, 2022 | 17.5 | 17.5 | | | | |
Beginning balance at Dec. 31, 2022 | $ 756.1 | $ 0.2 | 613.1 | 472.6 | (12.7) | $ (317.1) |
Beginning balance (in shares) at Dec. 31, 2022 | (4) | | | | | (4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | $ 68.7 | | | 68.7 | | |
Other comprehensive income (loss) | 2.8 | | | | 2.8 | |
Stock-based compensation | 1.8 | | 1.8 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | (3.6) | $ 0 | (3.6) | | | |
Dividends | (8.5) | | | (8.5) | | |
Ending balance (in shares) at Mar. 31, 2023 | | 17.5 | | | | |
Ending balance at Mar. 31, 2023 | $ 817.3 | $ 0.2 | 611.3 | 532.8 | (9.9) | $ (317.1) |
Ending balance (in shares) at Mar. 31, 2023 | | | | | | (4) |
Beginning balance (in shares) at Dec. 31, 2022 | 17.5 | 17.5 | | | | |
Beginning balance at Dec. 31, 2022 | $ 756.1 | $ 0.2 | 613.1 | 472.6 | (12.7) | $ (317.1) |
Beginning balance (in shares) at Dec. 31, 2022 | (4) | | | | | (4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | $ 139.4 | | | | | |
Other comprehensive income (loss) | $ 3 | | | | | |
Ending balance (in shares) at Jun. 30, 2023 | 17.6 | 17.6 | | | | |
Ending balance at Jun. 30, 2023 | $ 883.3 | $ 0.2 | 614.9 | 595 | (9.7) | $ (317.1) |
Ending balance (in shares) at Jun. 30, 2023 | (4) | | | | | (4) |
Beginning balance (in shares) at Mar. 31, 2023 | | 17.5 | | | | |
Beginning balance at Mar. 31, 2023 | $ 817.3 | $ 0.2 | 611.3 | 532.8 | (9.9) | $ (317.1) |
Beginning balance (in shares) at Mar. 31, 2023 | | | | | | (4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income | 70.7 | | | 70.7 | | |
Other comprehensive income (loss) | 0.2 | | | | 0.2 | |
Stock-based compensation | 3.6 | | 3.6 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0.1 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | 0 | $ 0 | 0 | | | |
Dividends | $ (8.5) | | | (8.5) | | |
Ending balance (in shares) at Jun. 30, 2023 | 17.6 | 17.6 | | | | |
Ending balance at Jun. 30, 2023 | $ 883.3 | $ 0.2 | $ 614.9 | $ 595 | $ (9.7) | $ (317.1) |
Ending balance (in shares) at Jun. 30, 2023 | (4) | | | | | (4) |
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[1]Accumulated other comprehensive loss. |