RELATED PARTY TRANSACTIONS - Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jul. 31, 2023	Dec. 31, 2022	Feb. 28, 2022
Related Party Transaction [Line Items]
Right-of-use assets	$ 221,508		$ 215,160
Operating lease, liability	272,553		255,112
KAEC Lease Agreement | Related Party
Related Party Transaction [Line Items]
Lease initial term (in years)				25 years
Right-of-use assets	4,500		4,800
Operating lease, liability	5,700		$ 5,400
KAFD Lease Agreement | Related Party
Related Party Transaction [Line Items]
Lease initial term (in years)		6 years
Right-of-use assets	2,300
Operating lease, liability	$ 2,300