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Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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Consolidated Statements of Condition |  |
Held to maturity, Market value (in dollars) | $ 3,400 | $ 3,400
Available for sale, Amortized cost (in dollars) | $ 4,648,031 | $ 4,254,960
Common shares, par value (in dollars per share) | $ 1.00 | $ 1.00
Common shares, Authorized shares | 275,000,000 | 275,000,000
Common shares, issued shares | 96,368,414 | 96,350,977
Treasury, shares | 33,993,101 | 32,979,273

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: 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(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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