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Long-Term Debt - Narrative (Details) - USD ($)			3 Months Ended		6 Months Ended
	Jul. 02, 2024	May 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Cash paid to settle Enerplus credit facility		$ 395,000,000
Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross			$ 575,000,000		$ 575,000,000		$ 0
Line of credit facility, remaining borrowing capacity			894,800,000		894,800,000		991,100,000
Weighted average interest rate (as a percent)				0.00%		0.00%
Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross			$ 400,000,000		$ 400,000,000		400,000,000
Stated interest rate (as a percent)			6.375%		6.375%
Senior Notes | Level 1
Debt Instrument [Line Items]
Long-term debt, fair value			$ 399,900,000		$ 399,900,000		400,000,000.0
Enerplus Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross			60,063,000		60,063,000		0
Stated interest rate (as a percent)		3.79%
Assumed debt		$ 63,000,000
Enerplus Senior Notes | Level 2
Debt Instrument [Line Items]
Long-term debt, fair value			$ 60,300,000		$ 60,300,000
Enerplus Senior Notes | Subsequent Event
Debt Instrument [Line Items]
Repayments of assumed debt	$ 63,000,000
Payments for accrued interest on assumed debt	$ 800,000
Credit Facility
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)			7.53%		7.53%
Amount borrowed during the period				0.00%		0.00%
Credit Facility | Credit Facility
Debt Instrument [Line Items]
Credit facility borrowing base		3,000,000,000.0
Long-term debt, gross			$ 575,000,000.0		$ 575,000,000.0		0
Letters of credit outstanding			$ 30,200,000		$ 30,200,000		$ 8,900,000
Credit Facility | Elected Commitments
Debt Instrument [Line Items]
Credit facility borrowing base		$ 1,500,000,000
Amended and Restated Credit Facility | Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Spread on variable rate (as a percent)					0.10%
Amended and Restated Credit Facility | Credit Facility | Minimum
Debt Instrument [Line Items]
Commitment fee percentage					0.375%
Amended and Restated Credit Facility | Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Spread on variable rate (as a percent)					1.75%
Amended and Restated Credit Facility | Credit Facility | Minimum | Alternative Base Rate (ABR)
Debt Instrument [Line Items]
Spread on variable rate (as a percent)					0.75%
Amended and Restated Credit Facility | Credit Facility | Maximum
Debt Instrument [Line Items]
Commitment fee percentage					0.50%
Amended and Restated Credit Facility | Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Spread on variable rate (as a percent)					2.75%
Amended and Restated Credit Facility | Credit Facility | Maximum | Alternative Base Rate (ABR)
Debt Instrument [Line Items]
Spread on variable rate (as a percent)					1.75%

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