CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Total Century equity	Preferred stock	Common stock	Additional paid-in capital	Treasury stock, at cost	Accumulated other comprehensive loss	Accumulated deficit	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2024			49,715
Beginning balance at Dec. 31, 2024	$ 805.3	$ 694.3	$ 0.0	$ 1.0	$ 2,550.2	$ (86.3)	$ (103.3)	$ (1,667.3)	$ 111.0
Beginning balance (in shares) at Dec. 31, 2024				93,288,565
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	22.4	29.7						29.7	(7.3)
Other comprehensive income	1.7	1.7					1.7		0.0
Share-based compensation (in shares)				4,779
Share-based compensation	0.6	0.6			0.6				0.0
Conversion of preferred stock to common stock (in shares)			36	3,593
Conversion of preferred stock to common stock	0.0
Noncontrolling interest of business acquired	7.8								7.8
Ending balance (in shares) at Mar. 31, 2025			49,679
Ending balance at Mar. 31, 2025	$ 837.8	726.3	$ 0.0	$ 1.0	2,550.8	(86.3)	(101.6)	(1,637.6)	111.5
Ending balance (in shares) at Mar. 31, 2025				93,296,937
Beginning balance (in shares) at Dec. 31, 2025	0		0
Beginning balance at Dec. 31, 2025	$ 929.9	805.6	$ 0.0	$ 1.1	2,571.5	(86.3)	(55.2)	(1,625.5)	124.3
Beginning balance (in shares) at Dec. 31, 2025	98,969,007			98,969,007
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 327.0	337.5						337.5	(10.5)
Other comprehensive income	11.0	6.7					6.7		4.3
Share-based compensation (in shares)				5,040
Share-based compensation	1.2	1.2			1.2
Noncontrolling interest of business acquired	$ 15.5								15.5
Ending balance (in shares) at Mar. 31, 2026	0		0
Ending balance at Mar. 31, 2026	$ 1,284.5	$ 1,150.9	$ 0.0	$ 1.1	$ 2,572.7	$ (86.3)	$ (48.5)	$ (1,288.1)	$ 133.6
Ending balance (in shares) at Mar. 31, 2026	98,974,047			98,974,047