XML 103 R79.htm IDEA: XBRL DOCUMENT v3.24.0.1
Commitments and Contingencies - Narrative (Details)
gal / d in Thousands, a in Thousands, gal in Millions, $ in Millions
 1 Months Ended 2 Months Ended
Aug. 17, 2023
reservoir
Jun. 16, 2023
gal / d
Oct. 11, 2019
license
Jan. 07, 2019
gal
Apr. 10, 2015
plaintiff
May 31, 2016
Dec. 31, 2015
plaintiff
Jan. 31, 2019
Dec. 31, 2023
USD ($)
Dec. 31, 2018
a
license
EMI                    
Loss Contingencies [Line Items]                    
Ownership interest held (percent)               50.00%    
EMI | Maui                    
Loss Contingencies [Line Items]                    
Area of land sold (acres)                   41
EMI | East Maui                    
Loss Contingencies [Line Items]                    
Watershed lands owned (in acres)                   16
State of Hawaii | East Maui                    
Loss Contingencies [Line Items]                    
Number of water licenses held and extended as revocable permits | license                   4
Additional watershed lands accessible by licenses (in acres)                   30
Bid, Performance and Payment Bonds and Commercial Bonds                    
Loss Contingencies [Line Items]                    
Possible administrative penalty | $                 $ 18.7  
Long Term Water Lease Request                    
Loss Contingencies [Line Items]                    
Number of water licenses held and extended as revocable permits | license     4              
Number of parties filed lawsuit | plaintiff         3   3      
Duration of revocable permits for disposition of water rights     1 year     3 years        
Sierra Club Lawsuit Against BLNR, A&B, and EMI                    
Loss Contingencies [Line Items]                    
Number of gallons per day sought to be enjoined (gallons) | gal       25            
Number of gallons per day diverted (in gallons) | gal / d   31,500                
Number of reservoirs to be lined | reservoir 1