CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net income	$ 51,780	$ 50,216
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	68,522	64,131
Change in value of life insurance contracts	(3,433)	124
Allowance for equity funds used during construction	(5,087)	(2,644)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	(29,436)	(18,471)
Accounts payable	16,735	18,133
Other current assets	(3,937)	(1,392)
Other current liabilities	11,597	8,762
Other changes in noncurrent assets and liabilities	21,602	644
Net cash provided by operating activities	128,343	119,503
Investing activities:
Utility plant expenditures	(194,942)	(212,856)
Life insurance proceeds	0	3,491
Purchase of life insurance contracts	(2,216)	(4,925)
Net cash used in investing activities	(197,158)	(214,290)
Financing activities:
Short-term borrowings	210,000	141,000
Repayment of short-term borrowings	(120,000)	(341,000)
Issuance of long-term debt, net of expenses of $1,569 for 2019 and $617 for 2018	398,431	299,383
Repayment of long-term debt	(401,630)	(12,499)
Advances and contributions in aid of construction	21,266	13,630
Refunds of advances for construction	(5,560)	(5,462)
Repurchase of common stock	(2,355)	(1,496)
Issuance of common stock	1,278	0
Dividends paid	(28,507)	(27,029)
Net cash provided by financing activities	72,923	66,527
Change in cash, cash equivalents, and restricted cash	4,108	(28,260)
Cash, cash equivalents, and restricted cash at beginning of period	47,715	95,352
Cash, cash equivalents, and restricted cash at end of period	51,823	67,092
Supplemental information:
Cash paid for interest (net of amounts capitalized)	22,060	19,956
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	31,676	32,328
Utility plant contribution by developers	$ 23,955	$ 14,807