Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Loss	Company Shares Held by DCP	Retained Earnings	Noncontrolling Interest
Balance at beginning of period (in shares) at Dec. 31, 2024		22,803,976
Balance at beginning of period at Dec. 31, 2024	$ 637.6	$ 4.6	$ 142.9	$ (51.1)	$ (0.3)	$ 541.7	$ (0.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14.3					14.3
Other comprehensive (loss) income	3.1			3.0			0.1
Dividends	(2.9)		0.1			(3.0)
Share-based compensation	1.7		1.7
Issuance of common stock under incentive plan (in shares)		36,111
Withholding tax paid upon equity award vesting	(0.7)		(0.7)
Balance at end of period (in shares) at Mar. 31, 2025		22,840,087
Balance at end of period at Mar. 31, 2025	$ 653.1	$ 4.6	144.0	(48.1)	(0.3)	553.0	(0.1)
Balance at beginning of period (in shares) at Dec. 31, 2025	22,877,530	22,877,530
Balance at beginning of period at Dec. 31, 2025	$ 681.6	$ 4.6	149.6	(40.6)	(0.2)	568.3	(0.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1.3					1.3
Other comprehensive (loss) income	(1.8)			(1.9)			0.1
Dividends	(3.0)		0.1			(3.1)
Share-based compensation	2.6		2.6
Issuance of common stock under incentive plan (in shares)		97,240
Withholding tax paid upon equity award vesting	$ (2.6)		(2.6)
Balance at end of period (in shares) at Mar. 31, 2026	22,974,770	22,974,770
Balance at end of period at Mar. 31, 2026	$ 678.1	$ 4.6	$ 149.7	$ (42.5)	$ (0.2)	$ 566.5	$ 0.0