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v3.21.1

Insurance Reserves and Policyholder Funds, Liability for Unpaid Losses, Claims and Loss Adjustment Expenses (Details) $ in Thousands | 12 Months Ended |  |  |  |  |  |  |  |  |
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Dec. 31, 2020 USD ($) Claim | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($)
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | $ 59,669 |  |  |  |  |  |  |  |  |
Duration required for loss data to develop the estimated ultimate incurred claims | 36 months |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Property and casualty claim threshold amount required for review | $ 25,000 |  |  |  |  |  |  |  |  |
Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 634,358 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | 621,458 |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | 12,900 |  |  |  |  |  |  |  |  |
Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 211,677 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | 174,893 |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | 36,784 |  |  |  |  |  |  |  |  |
Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 37,910 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | 35,947 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior period net of reinsurance | 1 |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | 1,964 |  |  |  |  |  |  |  |  |
General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 9,691 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | 6,619 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior period net of reinsurance | 343 |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | 3,415 |  |  |  |  |  |  |  |  |
Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 26,787 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | 23,901 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior period net of reinsurance | 54 |  |  |  |  |  |  |  |  |
Liabilities for losses, claims and loss adjustment expenses, net of reinsurance | 2,940 |  |  |  |  |  |  |  |  |
Accident Year 2011 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 38,297 | $ 38,297 | $ 38,297 | $ 38,299 | $ 38,302 | $ 38,316 | $ 38,327 | $ 38,360 | $ 38,296 | $ 38,188
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 664,056 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 38,297 | 38,297 | 38,297 | 38,299 | 38,302 | 38,316 | 38,327 | 38,360 | 38,296 | 31,720
Accident Year 2011 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 13,328 | 13,329 | 13,330 | 13,385 | 13,495 | 13,281 | 13,289 | 13,235 | 13,802 | 12,263
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 2,134 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 13,328 | 13,329 | 13,330 | 13,199 | 13,106 | 13,039 | 12,071 | 9,858 | 7,934 | 4,205
Accident Year 2011 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 1,534 | 1,400 | 1,335 | 1,327 | 1,242 | 1,174 | 1,338 | 1,452 | 1,723 | 3,022
IBNR Reserves | $ 20 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 210 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 1,426 | 1,325 | 1,285 | 1,278 | 1,169 | 1,161 | 835 | 582 | 412 | 295
Accident Year 2011 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 5,163 | 5,112 | 5,111 | 5,112 | 5,031 | 4,966 | 5,092 | 5,080 | 4,786 | 4,422
IBNR Reserves | $ 7 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 128 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 5,117 | 5,112 | 5,111 | 5,109 | 5,022 | 4,939 | 4,748 | 4,622 | 3,207 | $ 1,031
Accident Year 2012 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 50,984 | 50,984 | 50,985 | 50,987 | 50,989 | 50,998 | 51,021 | 50,996 | 50,021 |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 867,050 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 50,984 | 50,984 | 50,985 | 50,987 | 50,989 | 50,998 | 51,021 | 50,996 | 42,267 |
Accident Year 2012 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 13,373 | 13,373 | 13,357 | 13,343 | 13,313 | 13,707 | 14,108 | 15,007 | 12,980 |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 2,343 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 13,373 | 13,373 | 13,288 | 13,211 | 13,197 | 12,932 | 11,507 | 8,791 | 4,627 |
Accident Year 2012 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 1,388 | 1,377 | 1,344 | 1,333 | 1,214 | 1,270 | 1,269 | 1,305 | 4,055 |
IBNR Reserves | $ 25 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 161 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 1,280 | 1,269 | 1,260 | 1,219 | 1,113 | 1,034 | 847 | 707 | 371 |
Accident Year 2012 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 4,944 | 4,925 | 4,892 | 4,880 | 4,869 | 5,345 | 5,396 | 4,767 | 4,979 |
IBNR Reserves | $ 2 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 89 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 4,934 | 4,916 | 4,878 | 4,880 | 4,869 | 5,331 | 4,856 | 4,581 | $ 2,257 |
Accident Year 2013 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 57,014 | 57,015 | 57,016 | 57,021 | 57,023 | 57,034 | 56,970 | 56,974 |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 957,363 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 57,014 | 57,015 | 57,016 | 57,021 | 57,023 | 57,034 | 56,970 | 47,770 |  |
Accident Year 2013 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 20,972 | 20,972 | 21,020 | 21,352 | 21,823 | 21,096 | 20,702 | 18,664 |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,267 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 20,972 | 20,972 | 20,982 | 20,382 | 19,407 | 16,782 | 12,193 | 5,144 |  |
Accident Year 2013 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 904 | 945 | 820 | 865 | 817 | 926 | 728 | 3,461 |  |
IBNR Reserves | $ 11 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 197 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 855 | 805 | 803 | 791 | 811 | 579 | 339 | 104 |  |
Accident Year 2013 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 2,757 | 2,765 | 2,809 | 2,866 | 2,947 | 2,743 | 2,007 | 3,060 |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 58 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 2,757 | 2,765 | 2,749 | 2,789 | 2,763 | 1,369 | 1,010 | $ 323 |  |
Accident Year 2014 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 56,976 | 56,977 | 56,976 | 56,981 | 56,981 | 56,938 | 57,179 |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 939,478 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 56,976 | 56,977 | 56,976 | 56,981 | 56,981 | 56,938 | 48,024 |  |  |
Accident Year 2014 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 22,100 | 22,080 | 21,682 | 22,353 | 22,041 | 21,881 | 20,812 |  |  |
IBNR Reserves | $ 48 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,544 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 21,813 | 21,735 | 20,878 | 20,177 | 17,554 | 13,807 | 6,822 |  |  |
Accident Year 2014 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 523 | 497 | 406 | 476 | 557 | 501 | 3,744 |  |  |
IBNR Reserves | $ 6 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 194 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 498 | 493 | 373 | 369 | 331 | 299 | 171 |  |  |
Accident Year 2014 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 2,818 | 2,617 | 2,685 | 2,760 | 2,990 | 3,130 | 3,214 |  |  |
IBNR Reserves | $ 43 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 54 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 2,562 | 2,593 | 2,664 | 2,739 | 2,727 | 2,327 | $ 1,331 |  |  |
Accident Year 2015 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 54,985 | 54,984 | 54,990 | 54,993 | 54,939 | 55,482 |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 898,374 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 54,985 | 54,984 | 54,990 | 54,993 | 54,876 | 45,430 |  |  |  |
Accident Year 2015 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 20,680 | 20,086 | 20,007 | 20,017 | 19,857 | 18,521 |  |  |  |
IBNR Reserves | $ 75 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,525 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 20,234 | 19,557 | 17,612 | 14,938 | 11,878 | 6,226 |  |  |  |
Accident Year 2015 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 855 | 867 | 1,044 | 1,227 | 1,037 | 4,421 |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 146 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 855 | 863 | 664 | 464 | 259 | 98 |  |  |  |
Accident Year 2015 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 1,310 | 1,406 | 1,359 | 1,400 | 1,630 | 1,902 |  |  |  |
IBNR Reserves | $ 6 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 50 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 1,271 | 1,128 | 1,125 | 1,127 | 856 | $ 641 |  |  |  |
Accident Year 2016 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 63,221 | 63,225 | 63,226 | 59,851 | 58,849 |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,036,769 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 63,221 | 63,225 | 63,226 | 59,747 | 49,165 |  |  |  |  |
Accident Year 2016 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 22,245 | 22,388 | 21,846 | 21,275 | 20,549 |  |  |  |  |
IBNR Reserves | $ 140 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,842 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 21,408 | 19,613 | 16,397 | 13,141 | 6,796 |  |  |  |  |
Accident Year 2016 [Member] | Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 6,289 | 6,289 | 6,352 | 6,386 | 6,877 |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,269 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 6,289 | 6,289 | 6,349 | 6,353 | 5,804 |  |  |  |  |
Accident Year 2016 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 621 | 608 | 736 | 1,148 | 3,119 |  |  |  |  |
IBNR Reserves | $ 1 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 92 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 617 | 608 | 568 | 203 | 116 |  |  |  |  |
Accident Year 2016 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 1,865 | 1,876 | 1,865 | 1,812 | 3,314 |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 46 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 1,862 | 1,873 | 1,772 | 1,732 | $ 1,054 |  |  |  |  |
Accident Year 2017 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 69,635 | 69,643 | 69,655 | 67,960 |  |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,510,654 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 69,635 | 69,643 | 69,517 | 57,696 |  |  |  |  |  |
Accident Year 2017 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 25,180 | 23,766 | 24,212 | 22,179 |  |  |  |  |  |
IBNR Reserves | $ 801 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,772 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 22,778 | 20,221 | 16,317 | 7,401 |  |  |  |  |  |
Accident Year 2017 [Member] | Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 5,860 | 5,857 | 5,933 | 6,257 |  |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,324 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 5,860 | 5,856 | 5,914 | 5,215 |  |  |  |  |  |
Accident Year 2017 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 738 | 513 | 488 | 1,490 |  |  |  |  |  |
IBNR Reserves | $ 68 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 82 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 556 | 365 | 136 | 75 |  |  |  |  |  |
Accident Year 2017 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 3,629 | 3,799 | 3,671 | 4,677 |  |  |  |  |  |
IBNR Reserves | $ 13 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 58 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 3,545 | 3,523 | 3,255 | $ 1,971 |  |  |  |  |  |
Accident Year 2018 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 80,361 | 80,404 | 79,140 |  |  |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,782,982 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 80,361 | 80,222 | 66,565 |  |  |  |  |  |  |
Accident Year 2018 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 27,338 | 25,682 | 24,284 |  |  |  |  |  |  |
IBNR Reserves | $ 2,072 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,578 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 21,121 | 15,647 | 6,989 |  |  |  |  |  |  |
Accident Year 2018 [Member] | Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 7,447 | 7,530 | 7,805 |  |  |  |  |  |  |
IBNR Reserves | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,452 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 7,446 | 7,510 | 6,344 |  |  |  |  |  |  |
Accident Year 2018 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 198 | 333 | 1,656 |  |  |  |  |  |  |
IBNR Reserves | $ 40 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 75 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 115 | 90 | 65 |  |  |  |  |  |  |
Accident Year 2018 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 1,381 | 1,938 | 3,528 |  |  |  |  |  |  |
IBNR Reserves | $ 6 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 62 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 1,361 | 1,454 | $ 1,157 |  |  |  |  |  |  |
Accident Year 2019 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 87,028 | 88,765 |  |  |  |  |  |  |  |
IBNR Reserves | $ 172 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 2,242,156 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 86,856 | 72,333 |  |  |  |  |  |  |  |
Accident Year 2019 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 24,045 | 25,241 |  |  |  |  |  |  |  |
IBNR Reserves | $ 3,117 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 3,479 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 14,694 | 7,305 |  |  |  |  |  |  |  |
Accident Year 2019 [Member] | Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 8,026 | 8,526 |  |  |  |  |  |  |  |
IBNR Reserves | $ 2 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,485 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 8,005 | 6,360 |  |  |  |  |  |  |  |
Accident Year 2019 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 707 | 1,916 |  |  |  |  |  |  |  |
IBNR Reserves | $ 261 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 82 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 209 | 41 |  |  |  |  |  |  |  |
Accident Year 2019 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 657 | 2,130 |  |  |  |  |  |  |  |
IBNR Reserves | $ 128 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 30 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 395 | $ 259 |  |  |  |  |  |  |  |
Accident Year 2020 [Member] | Medicare Supplement [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 75,857 |  |  |  |  |  |  |  |  |
IBNR Reserves | $ 12,728 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,620,697 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 63,129 |  |  |  |  |  |  |  |  |
Accident Year 2020 [Member] | Automobile Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 22,416 |  |  |  |  |  |  |  |  |
IBNR Reserves | $ 12,187 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 2,183 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 5,172 |  |  |  |  |  |  |  |  |
Accident Year 2020 [Member] | Automobile Physical Damage [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 10,288 |  |  |  |  |  |  |  |  |
IBNR Reserves | $ 177 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 1,526 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 8,347 |  |  |  |  |  |  |  |  |
Accident Year 2020 [Member] | General Liability [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 2,223 |  |  |  |  |  |  |  |  |
IBNR Reserves | $ 1,749 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 62 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 208 |  |  |  |  |  |  |  |  |
Accident Year 2020 [Member] | Surety [Member] |  |  |  |  |  |  |  |  |  |
Incurred Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Incurred losses, claims and allocated loss adjustment expenses, net of reinsurance | 2,263 |  |  |  |  |  |  |  |  |
IBNR Reserves | $ 1,887 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | Claim | 20 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims Development, Net of Reinsurance [Abstract] |  |  |  |  |  |  |  |  |  |
Cumulative paid losses, claims and allocated loss adjustment expense, net of reinsurance | $ 97 |  |  |  |  |  |  |  |  |

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