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Loss and loss adjustment expense reserves - Schedule of payout percentage on losses (Details) | Dec. 31, 2019
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Other Property |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 1.20%
Year 2 | 0.00%
Year 3 | 0.00%
Year 4 | 0.00%
Year 5 | 0.00%
Year 6 | 0.00%
Year 7 | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Other Property |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 48.60%
Year 2 | 28.40%
Year 3 | 8.80%
Year 4 | 5.40%
Year 5 | 2.60%
Year 6 | 1.30%
Year 7 | 0.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Workers’ Compensation |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 9.30%
Year 2 | 21.80%
Year 3 | 22.50%
Year 4 | 16.20%
Year 5 | 10.80%
Year 6 | 2.90%
Year 7 | 4.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 4.00%
Auto |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 45.40%
Year 2 | 43.60%
Year 3 | 7.00%
Year 4 | 1.80%
Year 5 | 0.50%
Year 6 | 0.00%
Year 7 | 0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Other Casualty |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 1.50%
Year 2 | 7.40%
Year 3 | 13.40%
Year 4 | 14.80%
Year 5 | 13.60%
Year 6 | 9.90%
Year 7 | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Credit & Financial Lines |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 9.30%
Year 2 | 23.60%
Year 3 | 28.50%
Year 4 | 12.70%
Year 5 | 3.60%
Year 6 | 0.10%
Year 7 | (0.30%)
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Multi-line |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 21.10%
Year 2 | 27.30%
Year 3 | 21.80%
Year 4 | (0.10%)
Year 5 | 2.10%
Year 6 | 0.40%
Year 7 | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Other Specialty |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 6.20%
Year 2 | 42.10%
Year 3 | 3.70%
Year 4 | 0.00%
Year 5 | 0.00%
Year 6 | 0.00%
Year 7 | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Contracts incepting in 2013 | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 4.40%
Year 2 | 23.90%
Year 3 | 31.70%
Year 4 | 4.70%
Year 5 | 3.50%
Year 6 | 2.60%
Year 7 | 3.30%
Contracts incepting in 2014 | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 0.00%
Year 2 | 0.00%
Year 3 | 0.00%
Year 4 | 0.00%
Year 5 | 0.00%
Year 6 | 0.00%
Contracts incepting in 2015 | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 0.00%
Year 2 | 0.00%
Year 3 | 0.00%
Year 4 | 0.00%
Year 5 | 0.00%
Contracts incepting in 2017 | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 0.00%
Year 2 | 0.00%
Year 3 | 0.00%
Contracts incepting in 2018 | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 0.00%
Year 2 | 97.00%
Contracts incepting in 2019 [Member] | Retroactive reinsurance contracts |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 0.00%

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