Regulatory Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets

Regulatory assets and liabilities are comprised of the following as of June 30, 2018 and December 31, 2017:

	June 30, 2018		December 31, 2017
Regulatory assets:
Postretirement pensions and other medical benefits	$	68,556	68,556
Balancing and memorandum accounts, net	26,526		27,925
Other, net	3,250		3,073
Total regulatory assets, net in Consolidated Balance Sheets	$	98,332	99,554
Regulatory liability:
Income tax temporary differences, net	$	61,639	62,476
Total regulatory liability in Consolidated Balance Sheets	$	61,639	62,476