Investment in ATC and ATC Holdco (Tables)

3 Months Ended

Mar. 31, 2019

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments Financial Data

MGE Transco and MGEE Transco have accounted for their investments in ATC and ATC Holdco, respectively, under the equity method of accounting.Equity earnings from investments are recorded as "Other income" on the consolidated statements of income of MGE Energy. MGE Transco recorded the following:

		Three Months Ended
		March 31,
(In thousands)		2019		2018
Equity earnings from investment in ATC	$	2,218	$	2,451
Dividends from ATC(a)		2,012		-
Capital contributions to ATC		178		710

(a)MGE Transco recorded a $2.3 million dividend receivable from ATC as of December 31, 2017. A cash dividend was received in January of the proceeding year.

ATC's summarized financial data is as follows:

		Three Months Ended
		March 31,
(In thousands)		2019		2018
Operating revenues	$	177,715	$	165,429
Operating expenses		(90,387)		(84,893)
Other income, net		260		111
Interest expense, net		(29,118)		(27,762)
Earnings before members' income taxes	$	58,470	$	52,885