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v3.21.2

Segment Information - Summary of Financial Data by Segment (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Premiums earned: |  |  |  |
Premiums earned | $ 192,488,665 | $ 184,373,768 | $ 379,740,265 | $ 371,626,546
Net investment income | 7,652,180 | 7,172,144 | 15,162,758 | 14,548,428
Investment gains (losses) | 4,241,031 | 6,485,896 | 6,710,085 | (4,208,947)
Total revenues | 205,145,943 | 198,899,772 | 403,115,841 | 383,810,978
Underwriting (loss) income: |  |  |  |
Net investment income | 7,652,180 | 7,172,144 | 15,162,758 | 14,548,428
Net investment gains (losses) | 4,241,031 | 6,485,896 | 6,710,085 | (4,208,947)
Income before income tax expense | 19,696,825 | 27,988,049 | 32,447,510 | 30,491,220
Operating Segments [Member] |  |  |  |
Premiums earned: |  |  |  |
Premiums earned | 192,489,000 | 184,374,000 | 379,740,000 | 371,627,000
Net investment income | 7,652,000 | 7,172,000 | 15,163,000 | 14,548,000
Investment gains (losses) | 4,241,000 | 6,486,000 | 6,710,000 | (4,209,000)
Other | 764,000 | 868,000 | 1,503,000 | 1,845,000
Total revenues | 205,146,000 | 198,900,000 | 403,116,000 | 383,811,000
Underwriting (loss) income: |  |  |  |
SAP underwriting (loss) income | 2,314,000 | 12,762,000 | (891,000) | 17,007,000
GAAP adjustments | 5,256,000 | 1,378,000 | 11,238,000 | 2,762,000
GAAP underwriting income | 7,570,000 | 14,140,000 | 10,347,000 | 19,769,000
Net investment income | 7,652,000 | 7,172,000 | 15,163,000 | 14,548,000
Net investment gains (losses) | 4,241,000 | 6,486,000 | 6,710,000 | (4,209,000)
Other | 234,000 | 190,000 | 228,000 | 383,000
Income before income tax expense | 19,697,000 | 27,988,000 | 32,448,000 | 30,491,000
Commercial Lines [Member] | Operating Segments [Member] |  |  |  |
Premiums earned: |  |  |  |
Premiums earned | 115,300,000 | 101,870,000 | 224,525,000 | 203,645,000
Underwriting (loss) income: |  |  |  |
SAP underwriting (loss) income | 1,767,000 | 4,472,000 | (6,475,000) | 3,906,000
Personal Lines [Member] | Operating Segments [Member] |  |  |  |
Premiums earned: |  |  |  |
Premiums earned | 77,189,000 | 82,504,000 | 155,215,000 | 167,982,000
Underwriting (loss) income: |  |  |  |
SAP underwriting (loss) income | $ 547,000 | $ 8,290,000 | $ 5,584,000 | $ 13,101,000

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