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11) Retirement Plans: Noncontributory Employee Stock Ownership Plan (ESOP) (Details) - Employee Stock Ownership Plan ESOP | 12 Months Ended
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Dec. 31, 2019 shares
Employee Stock Ownership Plan (ESOP), Plan Description | The Company and its subsidiaries have a noncontributory Employee Stock Ownership Plan (“ESOP”) for all eligible employees. Eligible employees are primarily those with more than one year of service, who work in excess of 1,000 hours per year. Contributions, which may be in cash or stock of the Company, are determined annually by the Board of Directors.
Common Class A |
Employee Stock Ownership Plan (ESOP), Shares in ESOP | 495,618
Common Class C |
Employee Stock Ownership Plan (ESOP), Shares in ESOP | 307,491

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- Definition Description of the plan, including the basis for determining contributions, the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the description generally includes the basis for releasing shares and how dividends on allocated and unallocated shares are used. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Details
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