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v3.23.1

Business Segments (Financial Information of Company Operating Segments) (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 USD ($) segment | Mar. 31, 2022 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | segment | 2 |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) | $ 2,491,432 | $ 2,249,087
Investment Income | 223,398 | 173,512
Other | 180,174 | 492,810
Total revenues | 2,895,004 | 2,915,409
Pre-Tax Income (Loss) | 376,071 | 732,433
Net Income (Loss) to Common Stockholders | 294,126 | 590,638
Net investment gains | 23,010 | 366,265
Net investment gains, net of tax | 18,160 | 287,823
Corporate, other and eliminations |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) | 0 | 0
Investment Income | 5,257 | 8,435
Other | 147,587 | 117,869
Total revenues | 152,844 | 126,304
Pre-Tax Income (Loss) | (100,850) | (73,872)
Net Income (Loss) to Common Stockholders | (80,499) | (59,817)
Insurance |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) |  | 1,962,835
Insurance | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) | 2,181,876 | 1,962,835
Investment Income | 166,086 | 137,654
Other | 9,577 | 8,676
Total revenues | 2,357,539 | 2,109,165
Pre-Tax Income (Loss) | 352,199 | 382,412
Net Income (Loss) to Common Stockholders | 273,904 | 315,552
Insurance | Operating Segments | Non-US |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 274,000 | 235,000
Reinsurance & Monoline Excess |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) |  | 286,252
Reinsurance & Monoline Excess | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) | 309,556 | 286,252
Investment Income | 52,055 | 27,423
Other | 0 | 0
Total revenues | 361,611 | 313,675
Pre-Tax Income (Loss) | 101,712 | 57,628
Net Income (Loss) to Common Stockholders | 82,561 | 47,080
Reinsurance & Monoline Excess | Operating Segments | Non-US |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 106,000 | 96,000
Net investment gains |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums (1) | 0 | 0
Investment Income | $ 0 | $ 0

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