Other Long-term Liabilities - Components of Deferred Revenue (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Revenue Arrangement [Line Items]
Total deferred revenue		$ 198.8	$ 171.8	$ 168.5
Splitter Agreement [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue		129.0	129.0
Gas Contract Amendment [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue		32.3	34.8
Contributions in Aid of Construction [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	[1]	31.7
Other
Deferred Revenue Arrangement [Line Items]
Total deferred revenue		$ 5.8	$ 8.0

[1] Amount reflects additions of deferred revenue related to the Delaware Basin Acquisition.