Madison Gas and Electric Company Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Items not affecting cash:
Depreciation and amortization	$ 41,754	$ 39,606
Deferred income taxes	2,352	4,810
Provision for doubtful receivables	642	650
Employee benefit plan (credit) cost	(1,544)	778
Equity earnings in MGE Transco	(6,113)	(7,432)
Gain on sale of property	0	(1,581)
Other items	31	1,103
Changes in working capital items:
Decrease in current assets	25,530	15,259
Increase (decrease) in current liabilities	6,026	(17,615)
Cash contributions to pension and other postretirement plans	(3,967)	(9,717)
Other noncurrent items, net	527	2,671
Cash Provided by Operating Activities	138,432	96,146
Investing Activities:
Capital expenditures	(149,001)	(66,286)
Capital contributions to investments	(4,801)	(6,863)
Proceeds from sale of property	0	2,399
Other	368	161
Cash Used for Investing Activities	(153,434)	(70,589)
Financing Activities:
Repayment of long-term debt	(23,330)	(33,260)
Issuance of long-term debt	100,000	40,000
(Repayments of) proceeds from short-term debt	(4,000)	7,000
Other	(659)	(366)
Cash Provided by (Used for) Financing Activities	37,949	(19,128)
Change in cash, cash equivalents, and restricted cash	22,947	6,429
Cash, cash equivalents, and restricted cash at beginning of period	112,094	101,633
Cash, cash equivalents, and restricted cash at end of period	135,041	108,062
Significant noncash investing activities:
Accrued capital expenditures	10,991	12,469
MGE [Member]
Operating Activities:
Net Income	62,775	57,686
Items not affecting cash:
Depreciation and amortization	41,754	39,606
Deferred income taxes	(580)	2,255
Provision for doubtful receivables	642	650
Employee benefit plan (credit) cost	(1,544)	778
Gain on sale of property	0	(1,581)
Other items	768	1,376
Changes in working capital items:
Decrease in current assets	24,864	14,634
Increase (decrease) in current liabilities	9,941	(16,670)
Cash contributions to pension and other postretirement plans	(3,967)	(9,717)
Other noncurrent items, net	374	2,479
Cash Provided by Operating Activities	135,027	91,496
Investing Activities:
Capital expenditures	(149,001)	(66,286)
Proceeds from sale of property	0	1,751
Other	(680)	(45)
Cash Used for Investing Activities	(149,681)	(64,580)
Financing Activities:
Cash dividends paid to parent by MGE	0	(35,000)
Distributions to parent from noncontrolling interest	(19,000)	(16,500)
Repayment of long-term debt	(23,330)	(33,260)
Issuance of long-term debt	100,000	40,000
(Repayments of) proceeds from short-term debt	(4,000)	7,000
Other	(659)	(315)
Cash Provided by (Used for) Financing Activities	53,011	(38,075)
Change in cash, cash equivalents, and restricted cash	38,357	(11,159)
Cash, cash equivalents, and restricted cash at beginning of period	10,093	16,442
Cash, cash equivalents, and restricted cash at end of period	48,450	5,283
Significant noncash investing activities:
Accrued capital expenditures	$ 10,991	$ 12,469