Business Combination (Tables)

6 Months Ended

Jun. 30, 2020

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following table summarizes the estimated preliminary fair value of assets acquired and liabilities assumed as of June 30, 2020.

	Fair Value
Assets acquired:
Utility plant, net	$	750,703
Nonutility plant	848
Current assets	42,673
Investments	12,489
Regulatory assets and deferred charges, less current portion	83,132
Other intangible assets	17,181
Other assets	2,592
Goodwill	626,548
Total assets acquired	1,536,166
Liabilities assumed:
Long-term debt	281,009
Current liabilities, including maturities of long-term debt	125,797
Deferred income taxes	107,789
Postretirement benefit plans	31,789
Contributions in aid of construction and construction advances	137,327
Other long-term liabilities	10,607
Total liabilities assumed	694,318
Assumed equity	$	841,848