Earnings Per Share/Unit (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator for basic and diluted earnings per share:
Net loss	$ (147.9)	$ (39.1)	$ (309.9)	$ (80.7)
General partner's interest in net loss		(0.8)		(1.6)
Net loss attributable to limited partners		$ (38.3)		$ (79.1)
Denominator for earnings per share:
Weighted average number of basic common shares outstanding	86,797,123	80,555,587	86,613,896	80,453,995
Weighted average number of diluted common shares outstanding	86,797,123	80,555,587	86,613,896	80,453,995
Earnings per share
Basic	$ (1.7)	$ (0.48)	$ (3.58)	$ (0.98)
Diluted	$ (1.7)	$ (0.48)	$ (3.58)	$ (0.98)