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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Condensed financial statements |  |  |
Cash Flows From Operating Activities | $ 117,799 | $ 115,584 | $ 122,170
Cash Flows From Investing Activities: |  |  |
Net Cash Provided by (Used in) Investing Activities | (167,102) | (145,092) | (131,610)
Cash Flows From Financing Activities: |  |  |
Proceeds from stock option exercises |  |  | 30
Dividends paid | (56,356) | (51,689) | (47,206)
Net Cash Provided by (Used in) Financing Activities | 50,337 | (2,266) | 44,843
Net change in cash and cash equivalents | 1,034 | (31,774) | 35,403
Cash and cash equivalents, beginning of period | 4,963 |  |
Cash and cash equivalents, end of year | 5,997 | 4,963 |
Parent Company |  |  |
Condensed financial statements |  |  |
Cash Flows From Operating Activities | 56,398 | 36,799 | 47,307
Cash Flows From Investing Activities: |  |  |
Loans (made to)/repaid from, wholly-owned subsidiaries | (81,000) | (46,000) | 151,000
Increase in investment of subsidiary | 0 | 0 | (60,000)
Net Cash Provided by (Used in) Investing Activities | (81,000) | (46,000) | 91,000
Cash Flows From Financing Activities: |  |  |
Proceeds from stock option exercises | 0 | 0 | 30
Net change in notes payable to banks | 81,000 | 60,500 | (91,000)
Proceeds from note payable to GSWC | 0 | (26,000) | (6,000)
Repayment of note payable to GSWC | 0 | 26,000 | 6,000
Dividends paid | (56,356) | (51,689) | (47,206)
Net Cash Provided by (Used in) Financing Activities | 24,644 | 8,811 | (138,176)
Net change in cash and cash equivalents | 42 | (390) | 131
Cash and cash equivalents, beginning of period | 51 | 441 | 310
Cash and cash equivalents, end of year | $ 93 | $ 51 | $ 441

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585 + Details
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