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v3.23.1

Investments (Narrative) (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Schedule of Investments [Line Items] |  |  |
Federal Home Loan Bank Stock and Federal Reserve Bank Stock | $ 15,500,000 |  | $ 16,300,000
Certificates of deposit, at carrying value | 500,000 |  | 700,000
Non-governmental issues exceeding 10% shareholders equity threshold | 0 |  | 0
Credit-related investment impairment losses | 0 | $ 0 |
Asset Pledged as Collateral |  |  |
Schedule of Investments [Line Items] |  |  |
Carrying value of securities pledged | 857,000,000 |  | 886,000,000
Marketable equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Investment securities | $ 7,900,000 |  | $ 7,600,000

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- Definition A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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