Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES:
Net income before noncontrolling interest	$ 14,156	$ 24,255
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,389	25,258
Deferred income taxes	(2,129)	1,286
Stock-based compensation	879	1,044
Unrealized loss on California Water Service Group stock	527	0
Gain on sale of real estate investments	0	(6,903)
Loss on sale of California Water Service Group stock	87	0
Changes in operating assets and liabilities:
Accounts receivable and accrued unbilled utility revenue	(9,359)	(7,814)
Accounts payable and other current liabilities	1,414	725
Accrued groundwater extraction charges, purchased water and power	4,173	7,376
Tax payable and receivable, and other accrued taxes	5,607	12,030
Postretirement benefits	2,388	2,651
Regulatory assets and liability related to balancing and memorandum accounts	1,399	(3,031)
Other changes, net	(2,105)	114
NET CASH PROVIDED BY OPERATING ACTIVITIES	45,426	56,991
INVESTING ACTIVITIES:
Company-funded	(62,091)	(60,921)
Contributions in aid of construction	(3,091)	(4,258)
Additions to real estate investments	(123)	(119)
Payments to retire utility plant, net of salvage	(2,787)	(718)
Proceeds from sale of real estate investments	0	11,180
Proceeds from sale of California Water Service Group stock	714	0
Payments for business/asset acquisition and water rights	0	1,150
Deposit for long-lived asset held-for-sale	0	3,000
NET CASH USED IN INVESTING ACTIVITIES	(67,378)	(52,986)
FINANCING ACTIVITIES:
Borrowings on line of credit	34,000	2,500
Repayments of line of credit	0	(16,700)
Repayments of long-term borrowings	0	(2,717)
Payment to noncontrolling interest	0	(1,896)
Dividends paid	(11,520)	(8,916)
Receipts of advances and contributions in aid of construction	4,560	9,052
Refunds of advances for construction	(1,251)	(1,202)
Other changes, net	(2,710)	(248)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	23,079	(20,127)
NET CHANGE IN CASH AND CASH EQUIVALENTS	1,127	(16,122)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	7,799	25,350
CASH AND CASH EQUIVALENTS, END OF PERIOD	8,926	9,228
Cash paid during the period for:
Interest	13,240	12,382
Income taxes	420	237
Supplemental disclosure of non-cash activities:
Change in accrued payables for construction costs capitalized	1,657	7,985
Utility property installed by developers	$ 565	$ 381