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Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended |  |  |  |
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Statement of Stockholders' Equity [Abstract] |  |  |  |  |  |  |  |
Treasury Stock, Common, Shares | 40,742,200 | 41,429,692 | 40,742,200 | 41,429,692 | 40,835,590 | 41,391,555 | 41,816,674 | 42,494,684
Cash dividends declared per common share (in dollars per share) | $ 0 | $ 0 | $ 0 | $ 0 |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481549/505-30-45-1 + Details
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