Southern California Pipeline Incident (Details) $ in Thousands					3 Months Ended		6 Months Ended		9 Months Ended
	Sep. 08, 2022 USD ($) item	Aug. 26, 2022 USD ($)	Aug. 25, 2022 USD ($)	Oct. 02, 2021 item	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Mar. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 14, 2021 bbl	Oct. 05, 2021 ft² item
Unusual or Infrequent Item, or Both [Line Items]
Settlement amount			$ 50,000
Amount agreed to be receivable in a settlement										$ 96,500
Approximate net payment receivable in a settlement										$ 85,000
Litigation settlement (See Note 14)							$ (84,875)
Pipeline incident loss					$ 6,844	$ 5,092	15,123	$ 5,672
Amount receivable					30,418		30,418				$ 41,961
Southern California Pipeline Incident and Oil Release
Unusual or Infrequent Item, or Both [Line Items]
Number of foot section of pipeline displaced with lateral movement | item													4,000
Maximum lateral movement of pipeline identified | ft²													105
Number of inch split running parallel to pipe | item													13
Volume of oil expected to be released | bbl												588
Maximum volume of oil previously estimated | bbl												3,134
Number of deployed contractors working in cleanup operations | item				1,800
Estimated aggregate costs					29,500		29,500
Estimated fines and penalties									$ 12,000
Costs probable of recovery							14,400
Pipeline incident loss							15,100
Insurance cost recoveries							26,000
Other revenues from approved LOPI insurance proceeds							17,900
Southern California Pipeline Incident and Oil Release | Accounts Receivable
Unusual or Infrequent Item, or Both [Line Items]
Amount receivable					30,400		30,400				$ 42,000
Southern California Pipeline Incident and Oil Release | Minimum
Unusual or Infrequent Item, or Both [Line Items]
Estimated aggregate costs					190,000		190,000
Southern California Pipeline Incident and Oil Release | Maximum
Unusual or Infrequent Item, or Both [Line Items]
Estimated aggregate costs					$ 210,000		$ 210,000
Southern California Pipeline Incident and Oil Release | Pending Litigation
Unusual or Infrequent Item, or Both [Line Items]
Estimated litigation liability	$ 4,900	$ 7,100
Reimbursement amount payable to government agencies		$ 5,800
Number of misdemeanor charges | item	6
Probation period	1 year	4 years
Installment period		3 years
Southern California Pipeline Incident and Oil Release | CALIFORNIA
Unusual or Infrequent Item, or Both [Line Items]
Number of miles off the coast of beach | item				4