Segment Information - Assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Segment Reporting
Total identifiable assets	$ 8,546.4	$ 8,651.0
Permian
Segment Reporting
Total identifiable assets	2,643.6	2,661.4
Louisiana
Segment Reporting
Total identifiable assets	2,172.4	2,310.7
Oklahoma
Segment Reporting
Total identifiable assets	2,402.0	2,420.4
North Texas
Segment Reporting
Total identifiable assets	1,064.8	1,094.6
Corporate
Segment Reporting
Total identifiable assets	$ 263.6	$ 163.9

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details