Debt - Schedule of Debt Instrument Redemption (Details) - Senior Notes - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Principal	$ 813,010
Premiums Paid (Discounts Received)	13,324
Accrued but Unpaid Interest	11,749
Total Cost	838,083
Third party costs	$ 2,700
EQM's 6.500% notes due July 1, 2027
Debt Instrument [Line Items]
Interest rate, stated percentage (in percent)	6.50%	6.50%
Principal	$ 506,209
Premiums Paid (Discounts Received)	13,288
Accrued but Unpaid Interest	6,489
Total Cost	$ 525,986
EQT's 3.90% notes due October 1, 2027
Debt Instrument [Line Items]
Interest rate, stated percentage (in percent)	3.90%	3.90%
Principal	$ 233,345
Premiums Paid (Discounts Received)	(2,842)
Accrued but Unpaid Interest	4,070
Total Cost	$ 234,573
EQM's 5.500% notes due July 15, 2028
Debt Instrument [Line Items]
Interest rate, stated percentage (in percent)	5.50%	5.50%
Principal	$ 73,456
Premiums Paid (Discounts Received)	2,878
Accrued but Unpaid Interest	1,190
Total Cost	$ 77,524