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Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Operating activities |  |
Net cash provided by operating activities | $ 2,760 | $ 47,264
Investing activities |  |
Expenditures for property, plant and equipment | (19,802) | (13,264)
Proceeds from the sale of property, plant and equipment | 550 | 4,475
Purchase of equity securities | (2,000) | 0
Other | 72 | (20)
Net cash used for investing activities | (21,180) | (8,809)
Financing activities |  |
Additions to long-term debt | 6,199 | 1,065
Reductions of long-term debt | (1,057) | (498)
Net reduction to revolving credit agreements | (7,000) | (4,000)
Cash dividends paid | (4,045) | (3,808)
Purchase of treasury shares | (1,002) | (1,410)
Net cash used for financing activities | (6,905) | (8,651)
Cash and cash equivalents |  |
Total (decrease) increase for the period | (25,325) | 29,804
Balance at the beginning of the period | 122,892 | 85,257
Balance at the end of the period | $ 97,567 | $ 115,061

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 Reference 2: 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=121586364&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586 + Details
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