CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net (loss) income	$ (2,545)	$ 1,132
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	21,207	19,658
Change in value of life insurance contracts	1,137	(319)
Allowance for equity funds used during construction	(911)	(779)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	5,438	(4,564)
Accounts payable	(7,015)	(5,535)
Other current assets	(1,727)	(5,359)
Other current liabilities	6,385	5,084
Other changes in noncurrent assets and liabilities	6,283	4,979
Net cash provided by operating activities	28,252	14,297
Investing activities:
Utility plant expenditures	(70,650)	(51,853)
Life insurance proceeds	0	450
Purchase of life insurance contracts	0	(836)
Net cash used in investing activities	(70,650)	(52,239)
Financing activities:
Short-term borrowings	45,022	35,000
Repayment of short-term borrowings	(45,022)	(2,000)
Repayment of long-term debt	(10,224)	(286)
Advances and contributions in aid of construction	4,763	3,975
Refunds of advances for construction	(1,918)	(2,236)
Repurchase of common stock	(1,239)	(1,119)
Dividends paid	(9,003)	(8,634)
Net cash (used in) provided by financing activities	(17,621)	24,700
Change in cash, cash equivalents, and restricted cash	(60,019)	(13,242)
Cash, cash equivalents, and restricted cash at beginning of period	95,352	25,935
Cash, cash equivalents, and restricted cash at end of period	35,333	12,693
Supplemental information:
Cash paid for interest (net of amounts capitalized)	1,251	994
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	28,367	24,191
Utility plant contribution by developers	$ 4,518	$ 3,481