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v3.25.2

Business Segments (Financial Information of Company Operating Segments) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) segment | Jun. 30, 2024 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums (1) | $ 3,098,185 | $ 2,846,415 | $ 6,110,566 | $ 5,610,762
Investment Income (Loss) | 379,303 | 372,129 | 739,595 | 691,967
Other | 193,320 | 95,488 | 368,046 | 268,076
Total revenues | 3,670,808 | 3,314,032 | 7,218,207 | 6,570,805
Net Income (Loss) to Common Stockholders | 401,288 | 371,909 | 818,860 | 814,380
Net investment gains | 30,973 | (58,512) | 47,328 | (32,733)
Net investment gains, net of tax | 24,288 | (46,111) | 37,115 | (26,964)
Income before income taxes | 521,863 | 487,673 | 1,060,469 | 1,061,744
Policyholder Benefits and Claims Incurred, Net | 1,955,424 | 1,780,596 | 3,856,216 | 3,444,374
Policy Acquisition And Insurance Operating Expenses | 882,099 | 811,997 | 1,720,345 | 1,603,529
Segment Reporting, Other Segment Item, Amount | 311,422 | 233,766 | 581,177 | 461,158
Total | 3,148,945 | 2,826,359 | 6,157,738 | 5,509,061
Net investment gains (losses) | 30,973 | (58,512) | 47,328 | (32,733)
Corporate Reconciling Items And Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Investment Income (Loss) | (1,031) | 10,096 | 1,583 | 31,946
Other | 152,193 | 144,409 | 300,612 | 281,795
Total revenues | 151,162 | 154,505 | 302,195 | 313,741
Net Income (Loss) to Common Stockholders | (116,490) | (53,865) | (200,710) | (97,757)
Income before income taxes | (149,081) | (68,317) | (256,715) | (125,799)
Segment Reporting, Other Segment Item, Amount | 300,243 | 222,822 | 558,910 | 439,540
Total | 300,243 | 222,822 | 558,910 | 439,540
Segment Reporting, Reconciling Item, Corporate Nonsegment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | 30,973 | (58,512) | 47,328 | (32,733)
Net investment gains (losses) | 30,973 |  |  |
Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums (1) |  | 2,484,569 |  | 4,883,338
Insurance | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums (1) | 2,728,784 | 2,484,569 | 5,371,291 | 4,883,338
Investment Income (Loss) | 299,476 | 303,561 | 590,724 | 548,338
Other | 10,154 | 9,591 | 20,106 | 19,014
Total revenues | 3,038,414 | 2,797,721 | 5,982,121 | 5,450,690
Net Income (Loss) to Common Stockholders | 393,450 | 374,247 | 786,572 | 739,337
Income before income taxes | 512,672 | 490,053 | 1,022,177 | 968,202
Policyholder Benefits and Claims Incurred, Net | 1,742,235 | 1,589,569 | 3,429,688 | 3,071,121
Policy Acquisition And Insurance Operating Expenses | 772,328 | 707,155 | 1,507,989 | 1,389,749
Segment Reporting, Other Segment Item, Amount | 11,179 | 10,944 | 22,267 | 21,618
Total | 2,525,742 | 2,307,668 | 4,959,944 | 4,482,488
Insurance | Operating Segments | Non-US |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 361,000 | 368,000 | 694,000 | 762,000
Reinsurance and Monoline Excess Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums (1) |  | 361,846 |  | 727,424
Reinsurance and Monoline Excess Segment | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums (1) | 369,401 | 361,846 | 739,275 | 727,424
Investment Income (Loss) | 80,858 | 58,472 | 147,288 | 111,683
Other | 0 | 0 | 0 | 0
Total revenues | 450,259 | 420,318 | 886,563 | 839,107
Net Income (Loss) to Common Stockholders | 100,040 | 97,638 | 195,883 | 199,764
Income before income taxes | 127,299 | 124,449 | 247,679 | 252,074
Policyholder Benefits and Claims Incurred, Net | 213,189 | 191,027 | 426,528 | 373,253
Policy Acquisition And Insurance Operating Expenses | 109,771 | 104,842 | 212,356 | 213,780
Total | 322,960 | 295,869 | 638,884 | 587,033
Reinsurance and Monoline Excess Segment | Operating Segments | Non-US |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 116,000 | $ 117,000 | $ 246,000 | $ 228,000

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