XML 81 R66.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Long-Term Debt (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Dec. 31, 2014
Dec. 31, 2013
GSWC          
Debt Instrument [Line Items]          
Ratio of Indebtedness to Net Capital 0.4445        
Ratio of Indebtedness to EBITDA 3.1        
GSWC | Maximum          
Debt Instrument [Line Items]          
Ratio of Indebtedness to Net Capital 0.6667        
Ratio of Indebtedness to EBITDA 8        
Private Placement Notes [Member] | GSWC          
Debt Instrument [Line Items]          
Interest coverage ratio 4        
Private Placement Notes [Member] | GSWC | Minimum          
Debt Instrument [Line Items]          
Interest coverage ratio 2        
9.56% notes due 2031          
Debt Instrument [Line Items]          
Interest rate (as a percent) 9.56%   9.56%    
9.56% notes due 2031 | GSWC          
Debt Instrument [Line Items]          
Debt Instrument, Face Amount $ 28,000,000        
Interest rate (as a percent) 9.56%   9.56%    
Debt Instrument Redemption Premium above Treasury Yield 0.055%        
9.56% notes due 2031 | GSWC | Maximum          
Debt Instrument [Line Items]          
Redemption premium after 2021 (as a percent) 3.00%        
9.56% notes due 2031 | American States Utility Services [Member]          
Debt Instrument [Line Items]          
Interest rate (as a percent) 9.56%        
5.87% notes due 2028          
Debt Instrument [Line Items]          
Interest rate (as a percent) 5.87%   5.87%    
5.87% notes due 2028 | GSWC          
Debt Instrument [Line Items]          
Interest rate (as a percent) 5.87%   5.87%    
5.87% notes due 2028 | American States Utility Services [Member]          
Debt Instrument [Line Items]          
Interest rate (as a percent) 5.87%        
6.70% notes due 2019          
Debt Instrument [Line Items]          
Interest rate (as a percent) 6.70%   6.70%    
6.70% notes due 2019 | GSWC          
Debt Instrument [Line Items]          
Debt Instrument, Annual Principal Payment   $ 40,000,000      
Interest rate (as a percent) 6.70% 6.70% 6.70%    
Senior Notes issued to Co-Bank | GSWC          
Debt Instrument [Line Items]          
Additional spread on premium (as a percent) 0.50%        
American Recovery and Reinvestment Act Obligation due 2033 | GSWC          
Debt Instrument [Line Items]          
Interest rate (as a percent)         2.50%
3.45% notes due 2029          
Debt Instrument [Line Items]          
Interest rate (as a percent) 3.45%   3.45%    
3.45% notes due 2029 | GSWC          
Debt Instrument [Line Items]          
Debt Instrument, Face Amount $ 15,000,000.0     $ 15,000,000.0  
Interest rate (as a percent) 3.45%   3.45% 3.45%