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Taxes on Income (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of significant components of the deferred tax assets and liabilities from continuing operations
The significant components of the deferred tax assets and liabilities as reflected in the balance sheets at December 31, 2021 and 2020 are:
 AWRGSWC
 December 31,December 31,
(dollars in thousands)2021202020212020
Deferred tax assets:    
Regulatory-liability-related (1)
$32,220 $32,640 $30,410 $30,782 
Contributions and advances6,850 6,390 7,227 6,771 
Other 5,324 6,092 5,689 6,663 
Total deferred tax assets$44,394 $45,122 $43,326 $44,216 
Deferred tax liabilities:    
Fixed assets$(150,290)$(146,688)$(144,719)$(141,422)
Regulatory-asset-related: depreciation and other(25,914)(22,205)(24,858)(21,060)
Balancing and memorandum accounts (non-flow-through)(8,480)(7,401)(6,063)(6,315)
Total deferred tax liabilities(184,684)(176,294)(175,640)(168,797)
Accumulated deferred income taxes, net$(140,290)$(131,172)$(132,314)$(124,581)
Schedule of current and deferred components of income tax expense from continuing operations
The current and deferred components of income tax expense are as follows:
 AWR
 Year Ended December 31,
(dollars in thousands)202120202019
Current   
Federal$19,592 $19,240 $12,507 
State7,270 6,714 5,540 
Total current tax expense$26,862 $25,954 $18,047 
Deferred   
Federal$2,802 $1,814 $6,407 
State759 429 216 
Total deferred tax (benefit) expense3,561 2,243 6,623 
Total income tax expense $30,423 $28,197 $24,670 
 GSWC
 Year Ended December 31,
(dollars in thousands)202120202019
Current   
Federal$13,698 $14,674 $9,616 
State6,089 5,849 5,480 
Total current tax expense$19,787 $20,523 $15,096 
Deferred   
Federal$2,251 $949 $4,924 
State57 232 157 
Total deferred tax (benefit) expense2,308 1,181 5,081 
Total income tax expense$22,095 $21,704 $20,177 
Schedule of reconciliations of the effective tax rates to the federal statutory rate :
 AWR
 Year Ended December 31,
(dollars in thousands)202120202019
Federal taxes on pretax income at statutory rate $26,202 $24,071 $22,872 
Increase (decrease) in taxes resulting from: 
State income tax, net of federal benefit6,425 5,764 4,758 
Excess deferred tax amortization(1,356)(1,550)(1,579)
Flow-through on fixed assets1,069 1,056 1,244 
Flow-through on removal costs(1,962)(1,031)(1,582)
Investment tax credit(71)(71)(71)
Other – net116 (42)(972)
Total income tax expense from operations$30,423 $28,197 $24,670 
Pretax income from operations$124,770 $114,622 $109,012 
Effective income tax rate24.4 %24.6 %22.6 %
.
 GSWC
Year Ended December 31,
(dollars in thousands)202120202019
Federal taxes on pretax income at statutory rate$19,175 $18,202 $18,236 
Increase (decrease) in taxes resulting from: 
State income tax, net of federal benefit4,923 4,920 4,656 
Excess deferred tax amortization(1,184)(1,477)(1,579)
Flow-through on fixed assets1,008 1,042 1,244 
Flow-through on removal costs(1,954)(1,026)(1,582)
Investment tax credit(71)(71)(71)
Other – net198 114 (727)
Total income tax expense from operations$22,095 $21,704 $20,177 
Pretax income from operations$91,310 $86,675 $86,840 
Effective income tax rate24.2 %25.0 %23.2 %