Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Common Stock Issued | Additional Paid-in Capital | Accumulated Earnings (Deficit) | AOCL | [1] | Treasury Stock |
Beginning balance (in shares) at Dec. 31, 2020 | | 16.6 | | | | |
Beginning balance at Dec. 31, 2020 | $ 583.1 | $ 0.2 | $ 634.9 | $ (1.4) | $ (33.5) | $ (17.1) |
Beginning balance (in shares) at Dec. 31, 2020 | | | | | | (0.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income (loss) | 21.3 | | | 21.3 | | |
Other comprehensive income (loss) | (0.3) | | | | (0.3) | |
Stock-based compensation | 1.2 | | 1.2 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0.2 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | (3.3) | $ 0 | (3.3) | | | |
Treasury stock purchases (in shares) | | | | | | (0.6) |
Treasury stock purchases | (24.6) | | | | | $ (24.6) |
Ending balance (in shares) at Mar. 31, 2021 | | 16.8 | | | | |
Ending balance at Mar. 31, 2021 | 577.4 | $ 0.2 | 632.8 | 19.9 | (33.8) | $ (41.7) |
Ending balance (in shares) at Mar. 31, 2021 | | | | | | (1.3) |
Beginning balance (in shares) at Dec. 31, 2020 | | 16.6 | | | | |
Beginning balance at Dec. 31, 2020 | 583.1 | $ 0.2 | 634.9 | (1.4) | (33.5) | $ (17.1) |
Beginning balance (in shares) at Dec. 31, 2020 | | | | | | (0.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income (loss) | 47.7 | | | | | |
Other comprehensive income (loss) | 2.8 | | | | | |
Ending balance (in shares) at Jun. 30, 2021 | | 17 | | | | |
Ending balance at Jun. 30, 2021 | 579.6 | $ 0.2 | 631.3 | 46.3 | (30.7) | $ (67.5) |
Ending balance (in shares) at Jun. 30, 2021 | | | | | | (1.7) |
Beginning balance (in shares) at Mar. 31, 2021 | | 16.8 | | | | |
Beginning balance at Mar. 31, 2021 | 577.4 | $ 0.2 | 632.8 | 19.9 | (33.8) | $ (41.7) |
Beginning balance (in shares) at Mar. 31, 2021 | | | | | | (1.3) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income (loss) | 26.4 | | | 26.4 | | |
Other comprehensive income (loss) | 3.1 | | | | 3.1 | |
Stock-based compensation | 3.5 | | 3.5 | | | |
Issuance of common stock, net of stock received for minimum tax withholdings (in shares) | | 0.2 | | | | |
Issuance of common stock, net of stock received for minimum tax withholdings | (5) | $ 0 | (5) | | | |
Treasury stock purchases (in shares) | | | | | | (0.4) |
Treasury stock purchases | (25.8) | | | | | $ (25.8) |
Ending balance (in shares) at Jun. 30, 2021 | | 17 | | | | |
Ending balance at Jun. 30, 2021 | $ 579.6 | $ 0.2 | 631.3 | 46.3 | (30.7) | $ (67.5) |
Ending balance (in shares) at Jun. 30, 2021 | | | | | | (1.7) |
Beginning balance (in shares) at Dec. 31, 2021 | 17 | 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) | | | | | (2.4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income (loss) | $ 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 | 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) | | | | | (2.4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Net income (loss) | $ 169.6 | | | | | |
Other comprehensive income (loss) | $ 7.1 | | | | | |
Ending balance (in shares) at Jun. 30, 2022 | 17.5 | 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) | | | | | (3.2) |
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 (loss) | 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 | 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) | | | | | (3.2) |
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[1]Accumulated other comprehensive loss. |