v3.26.1
Note 9 - Underwriting Information - Schedule of Gross Written Premiums (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 630,456 $ 496,288 $ 1,260,284 $ 938,452
Percentage of Gross Written Premiums [1] 100.00% 100.00% 100.00% 100.00%
PESIC        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 304,276 $ 237,943 $ 574,346 $ 428,730
Percentage of Gross Written Premiums 48.30% 47.90% 45.60% 45.70%
PSIC        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 278,176 $ 232,983 $ 601,929 $ 463,900
Percentage of Gross Written Premiums 44.10% 46.90% 47.80% 49.40%
Laulima        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 23,407 $ 20,134 $ 42,078 $ 36,171
Percentage of Gross Written Premiums 3.70% 4.10% 3.30% 3.90%
PCSC        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 21,558   $ 33,979  
Percentage of Gross Written Premiums 3.40%   2.70%  
FIA        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 3,039 $ 5,228 $ 7,952 $ 9,651
Percentage of Gross Written Premiums 0.50% 1.10% 0.60% 1.00%
California        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 165,306 $ 163,814 $ 322,925 $ 303,536
Percentage of Gross Written Premiums 26.20% 33.00% 25.60% 32.30%
Texas        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 61,497 $ 35,708 $ 125,081 $ 80,699
Percentage of Gross Written Premiums 9.70% 7.20% 9.90% 8.60%
Florida        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 34,462 $ 23,979 $ 64,350 $ 42,621
Percentage of Gross Written Premiums 5.50% 4.80% 5.10% 4.50%
Hawaii        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 27,259 $ 24,544 $ 50,104 $ 44,901
Percentage of Gross Written Premiums 4.30% 4.90% 4.00% 4.80%
New York        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 26,971 $ 17,462 $ 51,454 $ 32,857
Percentage of Gross Written Premiums 4.30% 3.50% 4.10% 3.50%
Washington        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 18,207 $ 17,188 $ 37,406 $ 32,059
Percentage of Gross Written Premiums 2.90% 3.50% 3.00% 3.40%
Illinois        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 18,179 $ 13,048 $ 25,271 $ 18,637
Percentage of Gross Written Premiums 2.90% 2.70% 2.00% 2.00%
Minnesota        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 15,644 $ 12,004 $ 17,656 $ 13,042
Percentage of Gross Written Premiums 2.50% 2.40% 1.40% 1.40%
Other        
Disaggregation of Revenue [Line Items]        
Gross written premiums $ 262,931 $ 188,541 $ 566,037 $ 370,100
Percentage of Gross Written Premiums 41.70% 38.00% 44.90% 39.50%
Casualty        
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 197,494 $ 144,388 $ 403,793 $ 277,490
Percentage of Gross Written Premiums [1] 31.30% 29.10% 32.00% 29.60%
Inland Marine and Property        
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 169,728 $ 153,040 $ 336,291 $ 266,366
Percentage of Gross Written Premiums [1] 26.90% 30.80% 26.70% 28.40%
Earthquake        
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 146,648 $ 147,709 $ 283,964 $ 281,405
Percentage of Gross Written Premiums [1] 23.30% 29.80% 22.50% 30.00%
Crop        
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 77,368 $ 39,464 $ 165,142 $ 87,683
Percentage of Gross Written Premiums [1] 12.30% 8.00% 13.10% 9.30%
Surety & Credit        
Disaggregation of Revenue [Line Items]        
Gross written premiums [1] $ 39,218 $ 11,687 $ 71,094 $ 25,508
Percentage of Gross Written Premiums [1] 6.20% 2.30% 5.70% 2.70%
[1] Beginning in 2026, the Company has updated the categorization of its products to align with management’s current strategy and view of the business. Prior year amounts have been reclassified for comparability purposes. The recategorization is for presentation purposes only and does not impact overall gross written premiums.