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Regulatory Assets and Liabilities (Tables)
3 Months Ended
Mar. 31, 2019
Regulatory Assets and Liabilities Disclosure [Abstract]  
Schedule of Regulatory Assets
Regulatory assets and liabilities are comprised of the following as of March 31, 2019, and December 31, 2018:
 
 
March 31, 2019
 
December 31, 2018
Regulatory assets:
 
 
 
 
Postretirement pensions and other medical benefits
 
$
66,233

 
66,233

Balancing and memorandum accounts, net
 
31,476

 
34,413

Other, net
 
3,101

 
2,979

Total regulatory assets, net in Consolidated Balance Sheets
 
$
100,810

 
103,625

 
 
 
 
 
Regulatory liability:
 
 
 
 
Income tax temporary differences, net
 
$
58,793

 
59,149

Total regulatory liability in Consolidated Balance Sheets
 
$
58,793

 
59,149