XML 39 R26.htm IDEA: XBRL DOCUMENT v3.10.0.1
Revenue from Contract with Customer - Disaggregation of Revenues (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Disaggregation of Revenue [Line Items]        
Revenues $ 124,182 $ 124,418 $ 325,811 $ 336,423
WRAM under-collection (alternative revenue program) 87,689 91,919 228,834 239,057
Golden State Water Company        
Disaggregation of Revenue [Line Items]        
Revenues 95,564 99,913 254,382 265,165
WRAM under-collection (alternative revenue program) 87,689 $ 91,919 228,834 $ 239,057
Golden State Water Company | Water Service Utility Operations        
Disaggregation of Revenue [Line Items]        
Revenues 87,689   228,834  
WRAM under-collection (alternative revenue program) 938   (1,765)  
Golden State Water Company | Electric Service Utility Operations        
Disaggregation of Revenue [Line Items]        
Revenues 7,875   25,548  
BRRAM over-collection (alternative revenue program) 394   645  
American States Utility Services | Contracted Services        
Disaggregation of Revenue [Line Items]        
Contracted services 28,618   71,429  
American States Utility Services | Contracted Services | Water        
Disaggregation of Revenue [Line Items]        
Contracted services 16,909   44,134  
American States Utility Services | Contracted Services | Wastewater        
Disaggregation of Revenue [Line Items]        
Contracted services 11,709   27,295  
Billed Revenues | Golden State Water Company | Water Service Utility Operations        
Disaggregation of Revenue [Line Items]        
Revenues 88,627   227,069  
Billed Revenues | Golden State Water Company | Water Service Utility Operations | Tariff-based revenues        
Disaggregation of Revenue [Line Items]        
Revenues 87,204   223,230  
Billed Revenues | Golden State Water Company | Water Service Utility Operations | CPUC-approved surcharges (cost-recovery activities)        
Disaggregation of Revenue [Line Items]        
Revenues 937   2,458  
Billed Revenues | Golden State Water Company | Water Service Utility Operations | Other        
Disaggregation of Revenue [Line Items]        
Revenues 486   1,381  
Billed Revenues | Golden State Water Company | Electric Service Utility Operations        
Disaggregation of Revenue [Line Items]        
Revenues 8,269   26,193  
Billed Revenues | Golden State Water Company | Electric Service Utility Operations | Tariff-based revenues        
Disaggregation of Revenue [Line Items]        
Revenues 8,207   26,021  
Billed Revenues | Golden State Water Company | Electric Service Utility Operations | CPUC-approved surcharges (cost-recovery activities)        
Disaggregation of Revenue [Line Items]        
Revenues $ 62   $ 172