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Schedule II - Condensed Statement of Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items] |  |
Interest and dividends | $ 3,773 | $ 4,393
Net realized investment gains (losses) | 1,869 | 333
Changes in the estimated fair value of equity security investments | 14,934 | 4,904
Net gain on disposals of property | 3,957 | 26
Other | 4,772 | 623
Total Revenues | 329,498 | 236,408
Personnel expenses | 64,193 | 51,929
Office and technology expenses | 13,059 | 9,951
Other expenses | 18,813 | 12,856
Operating Expenses | 244,566 | 186,747
Income before Income Taxes | 84,932 | 49,661
Provision (Benefit) for Income Taxes | 17,912 | 10,241
Net income | $ 67,020 | $ 39,420
Basic Earnings per Common Share | $ 35.38 | $ 20.84
Weighted Average Shares Outstanding – Basic | 1,894 | 1,892
Diluted Earnings per Common Share | $ 35.28 | $ 20.80
Weighted Average Shares Outstanding – Diluted | 1,900 | 1,896
Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest and dividends | $ 376 | $ 768
Net realized investment gains (losses) | 1,050 | (473)
Changes in the estimated fair value of equity security investments | 1,182 | 265
Rental income | 734 | 702
Net gain on disposals of property | 3,937 | 0
Other | 2,015 | 392
Total Revenues | 9,294 | 1,654
Personnel expenses | 1,039 | 908
Office and technology expenses | 407 | 360
Other expenses | 882 | 1,003
Operating Expenses | 2,328 | 2,271
Equity in Net Income of Affiliated Companies | 61,372 | 39,685
Income before Income Taxes | 68,338 | 39,068
Provision (Benefit) for Income Taxes | 1,318 | (352)
Net income | $ 67,020 | $ 39,420
Basic Earnings per Common Share | $ 35.38 | $ 20.84
Weighted Average Shares Outstanding – Basic | 1,894 | 1,892
Diluted Earnings per Common Share | $ 35.28 | $ 20.80
Weighted Average Shares Outstanding – Diluted | 1,900 | 1,896

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