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SUBSEQUENT EVENTS (Details)
$ in Millions
1 Months Ended
Jul. 13, 2023
Oct. 31, 2023
USD ($)
Nov. 08, 2023
USD ($)
derivative
Sep. 30, 2023
derivative
2023 CoBank Credit Facility | Interest rate swap        
Subsequent Event [Line Items]        
Number of derivative agreements entered | derivative       0
SOFR | 2023 CoBank Credit Facility | 2023 CoBank Term Loan | Minimum        
Subsequent Event [Line Items]        
Basis spread on variable rate (as a percent) 2.00%      
SOFR | 2023 CoBank Credit Facility | 2023 CoBank Term Loan | Maximum        
Subsequent Event [Line Items]        
Basis spread on variable rate (as a percent) 3.75%      
Subsequent event | Alaska credit facility | Interest rate swap        
Subsequent Event [Line Items]        
Number of derivative agreements entered | derivative     2  
Subsequent event | SOFR | 2023 CoBank Credit Facility | 2023 CoBank Term Loan        
Subsequent Event [Line Items]        
Derivative, Term of debt   2 years    
Notional amount | $   $ 50.0    
Basis spread on variable rate (as a percent)   4.896%    
Subsequent event | SOFR | Alaska credit facility | Interest rate swap        
Subsequent Event [Line Items]        
Notional amount | $     $ 200.0  
Subsequent event | SOFR | Alaska credit facility | Interest rate swap | Minimum        
Subsequent Event [Line Items]        
Fixed interest rate on derivative     4.8695%  
Subsequent event | SOFR | Alaska credit facility | Interest rate swap | Maximum        
Subsequent Event [Line Items]        
Fixed interest rate on derivative     4.898%