CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Common Stock	Treasury Stock at Cost	Additional Paid-in Capital	Retained Earnings (accumulated deficit)	Total
Balances at beginning of period at Dec. 31, 2022	$ 1.0	$ (108.6)	$ 374.7	$ 308.0	$ 575.1
Balances at beginning of period (in shares) at Dec. 31, 2022	86,417,733
Increase (Decrease) in Stockholders' Deficit
Stock-based compensation			5.6		5.6
Issuance of restricted stock, net (in shares)	1,783,965
Purchase of shares		(28.4)			(28.4)
Purchase of shares (in shares)	(2,642,178)
Net Income (Loss)				(38.0)	(38.0)
Balances at end of period at Mar. 31, 2023	$ 1.0	(137.0)	380.3	270.0	514.3
Balances at end of period (in shares) at Mar. 31, 2023	85,559,520
Balances at beginning of period at Dec. 31, 2022	$ 1.0	$ (108.6)	374.7	308.0	575.1
Balances at beginning of period (in shares) at Dec. 31, 2022	86,417,733
Increase (Decrease) in Stockholders' Deficit
Purchase of shares (in shares)		(4,508,224)
Net Income (Loss)					(139.7)
Balances at end of period at Jun. 30, 2023	$ 1.0	$ (154.5)	385.4	168.3	400.2
Balances at end of period (in shares) at Jun. 30, 2023	83,684,981
Balances at beginning of period at Mar. 31, 2023	$ 1.0	(137.0)	380.3	270.0	514.3
Balances at beginning of period (in shares) at Mar. 31, 2023	85,559,520
Increase (Decrease) in Stockholders' Deficit
Stock-based compensation			5.1		5.1
Issuance of restricted stock, net (in shares)	(8,493)
Purchase of shares		$ (17.5)			(17.5)
Purchase of shares (in shares)	(1,866,046)	(1,866,046)
Net Income (Loss)				(101.7)	(101.7)
Balances at end of period at Jun. 30, 2023	$ 1.0	$ (154.5)	385.4	168.3	400.2
Balances at end of period (in shares) at Jun. 30, 2023	83,684,981
Balances at beginning of period at Dec. 31, 2023	$ 1.0	(154.9)	391.8	20.3	$ 258.2
Balances at beginning of period (in shares) at Dec. 31, 2023	83,557,786				83,557,786
Increase (Decrease) in Stockholders' Deficit
Stock-based compensation			3.0		$ 3.0
Issuance of restricted stock, net (in shares)	111,431
Purchase of shares		(1.6)			(1.6)
Purchase of shares (in shares)	(339,891)
Net Income (Loss)				(15.0)	(15.0)
Balances at end of period at Mar. 31, 2024	$ 1.0	(156.5)	394.8	5.3	244.6
Balances at end of period (in shares) at Mar. 31, 2024	83,329,326
Balances at beginning of period at Dec. 31, 2023	$ 1.0	$ (154.9)	391.8	20.3	$ 258.2
Balances at beginning of period (in shares) at Dec. 31, 2023	83,557,786				83,557,786
Increase (Decrease) in Stockholders' Deficit
Purchase of shares (in shares)		(361,208)
Net Income (Loss)					$ (25.8)
Balances at end of period at Jun. 30, 2024	$ 1.0	$ (156.6)	397.7	(5.5)	$ 236.6
Balances at end of period (in shares) at Jun. 30, 2024	84,757,140				84,757,140
Balances at beginning of period at Mar. 31, 2024	$ 1.0	(156.5)	394.8	5.3	$ 244.6
Balances at beginning of period (in shares) at Mar. 31, 2024	83,329,326
Increase (Decrease) in Stockholders' Deficit
Stock-based compensation			2.9		2.9
Issuance of restricted stock, net (in shares)	1,449,131
Purchase of shares		$ (0.1)			(0.1)
Purchase of shares (in shares)	(21,317)	(21,317)
Net Income (Loss)				(10.8)	(10.8)
Balances at end of period at Jun. 30, 2024	$ 1.0	$ (156.6)	$ 397.7	$ (5.5)	$ 236.6
Balances at end of period (in shares) at Jun. 30, 2024	84,757,140				84,757,140