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v3.22.2

Segment Information (Revenue by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | $ 834,439 | $ 740,518 | $ 1,646,722 | $ 1,465,478
Other income | 3,037 | 6,212 | 4,566 | 10,324
Net investment income earned | 70,222 | 83,731 | 142,824 | 153,447
Net realized and unrealized investment (losses) gains | (42,880) | 10,057 | (83,232) | 15,176
Total Investments revenue | 27,342 | 93,788 | 59,592 | 168,623
Total revenues | 864,818 | 840,518 | 1,710,880 | 1,644,425
Standard Commercial Lines |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 682,833 | 605,549 | 1,345,403 | 1,198,397
Standard Commercial Lines | Commercial Property [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 123,562 | 106,113 | 243,624 | 208,923
Standard Commercial Lines | Workers Compensation [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 83,502 | 74,337 | 168,182 | 152,527
Standard Commercial Lines | General Liability [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 226,285 | 197,293 | 442,610 | 390,813
Standard Commercial Lines | Commercial Automobile [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 198,381 | 178,028 | 392,211 | 349,909
Standard Commercial Lines | Business Owners Policies [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 31,508 | 29,311 | 61,552 | 57,938
Standard Commercial Lines | Bonds Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 10,682 | 8,993 | 21,042 | 17,586
Standard Commercial Lines | Other Commercial [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 6,317 | 5,679 | 12,485 | 11,199
Standard Commercial Lines | Miscellaneous income |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other income | 2,596 | 5,795 | 3,697 | 9,502
Standard Personal Lines |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 73,779 | 73,710 | 146,849 | 147,936
Standard Personal Lines | Personal Automobile [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 39,952 | 41,009 | 79,668 | 82,402
Standard Personal Lines | Homeowners [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 31,630 | 30,570 | 62,817 | 61,168
Standard Personal Lines | Other Personal [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 1,756 | 1,714 | 3,495 | 3,544
Standard Personal Lines | Miscellaneous income |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other income | 441 | 417 | 869 | 822
E&S Lines |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 80,864 | 67,471 | 159,036 | 129,469
E&S Lines | Casualty Insurance Product Line [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | 56,041 | 47,642 | 110,665 | 91,475
E&S Lines | Property Insurance [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net premiums earned | $ 24,823 | $ 19,829 | $ 48,371 | $ 37,994

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