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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Cash Flows From Operating Activities: |  |  |
Net Income | $ 69,367 | $ 59,743 | $ 60,484
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 39,273 | 39,109 | 42,674
Provision for doubtful accounts | 989 | 619 | 870
Deferred income taxes and investment tax credits | 12,153 | 27,640 | 10,423
Stock-based compensation expense | 2,885 | 2,538 | 2,754
Gain (Loss) on Sale of Assets and Asset Impairment Charges | (8,318) | 0 | 0
Other - net | (1,525) | (397) | 838
Changes in assets and liabilities: |  |  |
Accounts receivable - customers | (7,671) | (1,750) | (923)
Unbilled revenue | (2,020) | (4,901) | 1,932
Other accounts receivable | (1,671) | (1,233) | 1,243
Increase (Decrease) Receivable from Government | (4,742) | 2,606 | (848)
Materials and supplies | (501) | 1,121 | (1,827)
Prepayments and other current assets | (1,641) | 2,239 | 1,580
Increase (Decrease) in Costs in Excess of Billings on Uncompleted Contracts or Programs | 2,881 | 10,433 | 3,223
Increase (Decrease) in Regulatory Assets and Liabilities | 24,626 | (5,610) | (26,422)
Accounts payable | 4,358 | (3,442) | 679
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits | (878) | (289) | 616
Increase (Decrease) in Income Taxes Payable | 13,206 | (6,993) | 9,630
Increase (Decrease) in Billing in Excess of Cost of Earnings | 1,648 | (1,501) | (7,972)
Other liabilities | (1,589) | 3,095 | 941
Net Cash Provided | 144,552 | 96,949 | 95,145
Cash Flows From Investing Activities: |  |  |
Capital expenditures | (113,126) | (129,867) | (87,323)
Proceeds from Sale of Property, Plant, and Equipment | 34,324 | 0 | 54
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | (80,031) | (131,221) | (90,138)
Payments to Acquire Investments | (1,229) | (1,354) | (2,869)
Proceeds from Issuance of Common Shares and Stock Option Exercises | 909 | 235 | 1,198
Cash Flows From Financing Activities: |  |  |
Payments for Repurchase of Common Stock | 0 | 0 | (72,893)
Tax benefits from exercise of stock-based awards | 0 | 581 | 877
Receipt of advances for and contributions in aid of construction | 7,275 | 6,660 | 3,731
Refunds on advances for construction | (3,889) | (3,921) | (3,660)
Retirement or repayments of long-term debt | (329) | (313) | (237)
Net change in notes payable to banks | (31,000) | 62,000 | 28,000
Dividends paid | (36,417) | (33,408) | (32,690)
Other | (1,292) | (1,490) | (957)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations | (64,743) | 30,344 | (76,631)
Net increase (decrease) in cash and cash equivalents | (222) | (3,928) | (71,624)
Cash and cash equivalents, beginning of year | 436 | 4,364 | 75,988
Cash and cash equivalents, end of year | 214 | 436 | 4,364
Proceeds from Sale of Property, Plant, and Equipment | 34,324 | 0 | 54
GSWC |  |  |
Cash Flows From Operating Activities: |  |  |
Net Income | 53,757 | 46,969 | 47,591
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 38,094 | 38,063 | 41,534
Provision for doubtful accounts | 816 | 627 | 845
Deferred income taxes and investment tax credits | 13,970 | 28,099 | 10,719
Stock-based compensation expense | 2,420 | 2,118 | 2,443
Gain (Loss) on Sale of Assets and Asset Impairment Charges | (8,318) | 0 | 0
Other - net | (1,613) | (352) | 822
Changes in assets and liabilities: |  |  |
Accounts receivable - customers | (7,671) | (1,750) | (923)
Unbilled revenue | (1,152) | 481 | (448)
Other accounts receivable | (544) | (896) | 1,067
Materials and supplies | (322) | 1,136 | (2,069)
Prepayments and other current assets | (1,450) | 2,114 | 440
Increase (Decrease) in Regulatory Assets and Liabilities | 24,626 | (5,610) | (26,422)
Accounts payable | 4,927 | (1,514) | 1,940
Increase (Decrease) in Related Party Receivable Payable, Current | (390) | 280 | 445
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits | (878) | (289) | 616
Increase (Decrease) in Income Taxes Payable | 15,266 | (10,856) | 18,580
Other liabilities | (1,930) | 2,666 | 358
Net Cash Provided | 129,608 | 101,286 | 97,538
Cash Flows From Investing Activities: |  |  |
Capital expenditures | (110,487) | (127,913) | (86,144)
Origination of Notes Receivable from Related Parties | 0 | 0 | (20,700)
Repayment of Notes Receivable from Related Parties | 0 | 0 | 20,700
Payments for (Proceeds from) Other Investing Activities | (1,229) | (1,389) | (2,869)
Proceeds from Sale of Property, Plant, and Equipment | 34,324 | 0 | 0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | (77,392) | (129,302) | (89,013)
Cash Flows From Financing Activities: |  |  |
Tax benefits from exercise of stock-based awards | 0 | 501 | 872
Receipt of advances for and contributions in aid of construction | 7,275 | 6,660 | 3,731
Refunds on advances for construction | (3,889) | (3,921) | (3,660)
Retirement or repayments of long-term debt | (329) | (313) | (237)
Net change in inter-company borrowings | (26,500) | 49,500 | 12,000
Dividends paid | (27,680) | (25,450) | (62,000)
Other | (1,088) | (1,253) | (735)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations | (52,211) | 25,724 | (50,029)
Net increase (decrease) in cash and cash equivalents | 5 | (2,292) | (41,504)
Cash and cash equivalents, beginning of year | 209 | 2,501 | 44,005
Cash and cash equivalents, end of year | 214 | 209 | 2,501
Proceeds from Sale of Property, Plant, and Equipment | $ 34,324 | $ 0 | $ 0

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- Definition The cash outflow for a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Amount of cash (inflow) outflow from investing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from developers, builders, governmental agencies and municipalities that provide the entity with cash to extend its construction services to their properties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 + Details
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- Definition The cash inflow from a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash outflow for the payments made by the entity, generally on a straight-line basis over periods ranging from five to forty years to developers, builders, government agencies and municipalities for borrowings received in construction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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