Annual report [Section 13 and 15(d), not S-K Item 405]

INSURANCE CONTRACTS ASSETS AND LIABILITIES FROM INSURANCE ACTIVITIES - Schedule of claims development, short-duration insurance contracts (Details)

v3.26.1
INSURANCE CONTRACTS ASSETS AND LIABILITIES FROM INSURANCE ACTIVITIES - Schedule of claims development, short-duration insurance contracts (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 $ 4,905                
Cumulative paid losses and LAE, net of reinsurance 296                
Liabilities for loss and LAE, net of reinsurance 4,609                
Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 683                
Cumulative paid losses and LAE, net of reinsurance 245                
Liabilities for loss and LAE, net of reinsurance 438                
Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 11,678                
Cumulative paid losses and LAE, net of reinsurance 3,650                
Liabilities for loss and LAE, net of reinsurance 8,028                
Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 117,574                
Cumulative paid losses and LAE, net of reinsurance 103,544                
Liabilities for loss and LAE, net of reinsurance 14,030                
Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 27,853                
Cumulative paid losses and LAE, net of reinsurance 20,155                
Liabilities for loss and LAE, net of reinsurance 7,698                
Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 8,113                
Cumulative paid losses and LAE, net of reinsurance 3,580                
Liabilities for loss and LAE, net of reinsurance 4,533                
Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 12,056                
Cumulative paid losses and LAE, net of reinsurance 9,647                
Liabilities for loss and LAE, net of reinsurance 2,409                
2018 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 11 $ 6
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0 0 0 0
2018 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 0 0 0 0 0 0 4 2
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0 0 0 0
2018 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1 1 1 0 1 1 1 1 1
Cumulative paid losses and LAE, net of reinsurance 1 1 1 1 1 1 1 1 1
2018 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,250 1,273 1,224 1,260 1,236 1,233 1,226 1,213 842
Cumulative paid losses and LAE, net of reinsurance 1,250 1,236 1,236 1,236 1,236 1,233 1,226 1,213 842
2018 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,277 1,224 1,100 928 805 757 670 530 451
Cumulative paid losses and LAE, net of reinsurance 1,244 1,165 936 761 709 669 575 377 199
2018 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 540 544 523 399 540 540 543 496 458
Cumulative paid losses and LAE, net of reinsurance 540 540 540 540 540 540 540 496 458
2018 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 166 171 165 231 166 166 166 162 140
Cumulative paid losses and LAE, net of reinsurance 166 166 166 166 166 166 166 162 $ 140
2019 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 0 0 0 0 0 38 122  
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0 0 0  
2019 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1 1 1 1 1 1 38 106  
Cumulative paid losses and LAE, net of reinsurance 1 1 1 1 1 1 1 0  
2019 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 0 0 0 0 9 27 0  
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0 0 0  
2019 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,533 1,556 1,496 1,565 1,489 1,479 1,455 1,010  
Cumulative paid losses and LAE, net of reinsurance 1,533 1,514 1,514 1,509 1,489 1,479 1,455 1,010  
2019 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 569 585 585 540 437 450 477 561  
Cumulative paid losses and LAE, net of reinsurance 531 472 373 365 350 323 305 207  
2019 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 10 10 10 0 10 5 5 0  
Cumulative paid losses and LAE, net of reinsurance 10 10 10 10 10 0 0 0  
2019 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 195 202 194 252 195 195 195 175  
Cumulative paid losses and LAE, net of reinsurance 195 195 195 195 195 195 191 $ 174  
2020 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1 1 1 1 1 22 52    
Cumulative paid losses and LAE, net of reinsurance 1 1 1 1 1 1 1    
2020 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1 1 1 1 1 95 85    
Cumulative paid losses and LAE, net of reinsurance 1 1 1 1 1 1 0    
2020 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 0 0 0 2 2 2    
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0 0    
2020 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 2,644 2,707 2,579 2,759 2,551 2,456 1,718    
Cumulative paid losses and LAE, net of reinsurance 2,644 2,624 2,592 2,592 2,515 2,418 1,548    
2020 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,059 932 907 808 722 825 901    
Cumulative paid losses and LAE, net of reinsurance 793 632 581 520 475 400 207    
2020 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 12 13 128 0 8 8 8    
Cumulative paid losses and LAE, net of reinsurance 12 12 12 8 8 8 8    
2020 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 247 256 246 490 253 253 203    
Cumulative paid losses and LAE, net of reinsurance 247 247 247 247 246 246 $ 178    
2021 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 0 0 0 2 8      
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0 0      
2021 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1 1 1 1 195 261      
Cumulative paid losses and LAE, net of reinsurance 1 1 1 1 1 1      
2021 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 2 2 232 36 12 12      
Cumulative paid losses and LAE, net of reinsurance 2 2 2 2 2 1      
2021 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 4,747 4,902 4,725 5,289 4,671 3,584      
Cumulative paid losses and LAE, net of reinsurance 4,747 4,709 4,688 4,656 4,539 2,837      
2021 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,082 945 1,137 1,474 1,125 1,094      
Cumulative paid losses and LAE, net of reinsurance 618 567 550 538 430 254      
2021 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 112 117 183 283 50 56      
Cumulative paid losses and LAE, net of reinsurance 112 112 112 112 8 2      
2021 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 346 359 345 581 337 288      
Cumulative paid losses and LAE, net of reinsurance 346 346 346 340 327 $ 242      
2022 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 0 25 203 211 106        
Cumulative paid losses and LAE, net of reinsurance 0 0 0 0 0        
2022 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 4 4 4 243 426        
Cumulative paid losses and LAE, net of reinsurance 4 4 4 4 2        
2022 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 832 766 678 727 754        
Cumulative paid losses and LAE, net of reinsurance 676 676 676 676 676        
2022 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 8,976 9,349 9,290 10,245 7,215        
Cumulative paid losses and LAE, net of reinsurance 8,976 8,915 8,808 8,650 5,778        
2022 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,269 1,076 1,240 1,166 1,067        
Cumulative paid losses and LAE, net of reinsurance 774 700 667 628 433        
2022 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 117 121 141 118 110        
Cumulative paid losses and LAE, net of reinsurance 117 117 117 26 7        
2022 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 413 433 558 518 310        
Cumulative paid losses and LAE, net of reinsurance 413 413 403 403 $ 243        
2023 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3 1,118 3,532 552          
Cumulative paid losses and LAE, net of reinsurance 24 3 3 1          
2023 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 119 11 678 833          
Cumulative paid losses and LAE, net of reinsurance 11 11 11 5          
2023 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 135 610 1,006 254          
Cumulative paid losses and LAE, net of reinsurance 77 77 61 0          
2023 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 11,377 12,158 12,280 12,006          
Cumulative paid losses and LAE, net of reinsurance 11,293 11,209 11,044 8,343          
2023 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 1,877 1,329 1,338 1,429          
Cumulative paid losses and LAE, net of reinsurance 784 662 585 351          
2023 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 23 120 187 45          
Cumulative paid losses and LAE, net of reinsurance 23 23 23 0          
2023 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 768 989 824 938          
Cumulative paid losses and LAE, net of reinsurance 758 753 753 $ 419          
2024 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 99 6,857 14,334            
Cumulative paid losses and LAE, net of reinsurance 128 98 73            
2024 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 56 3,610 2,125            
Cumulative paid losses and LAE, net of reinsurance 39 37 32            
2024 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 2,240 3,106 2,971            
Cumulative paid losses and LAE, net of reinsurance 1,459 1,448 0            
2024 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 6,342 6,570 8,636            
Cumulative paid losses and LAE, net of reinsurance 6,070 5,988 4,217            
2024 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,048 3,055 2,761            
Cumulative paid losses and LAE, net of reinsurance 2,079 1,817 1,120            
2024 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 554 624 319            
Cumulative paid losses and LAE, net of reinsurance 230 43 40            
2024 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,081 4,029 4,937            
Cumulative paid losses and LAE, net of reinsurance 2,698 2,633 $ 1,846            
2025 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 64 24,966              
Cumulative paid losses and LAE, net of reinsurance 84 60              
2025 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 274 9,608              
Cumulative paid losses and LAE, net of reinsurance 187 184              
2025 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 4,746 8,041              
Cumulative paid losses and LAE, net of reinsurance 1,186 1              
2025 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 19,502 19,840              
Cumulative paid losses and LAE, net of reinsurance 18,298 12,532              
2025 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 14,048 8,106              
Cumulative paid losses and LAE, net of reinsurance 12,021 5,919              
2025 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,856 4,145              
Cumulative paid losses and LAE, net of reinsurance 1,887 33              
2025 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,635 4,661              
Cumulative paid losses and LAE, net of reinsurance 2,645 $ 2,226              
2026 | Life Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 4,738                
Cumulative paid losses and LAE, net of reinsurance 59                
2026 | Accident Insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 227                
Cumulative paid losses and LAE, net of reinsurance 1                
2026 | Civil Liability                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,722                
Cumulative paid losses and LAE, net of reinsurance 249                
2026 | Vehicle Owners                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 61,203                
Cumulative paid losses and LAE, net of reinsurance 48,733                
2026 | Compulsory employer liability insurance                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,624                
Cumulative paid losses and LAE, net of reinsurance 1,311                
2026 | Property Damage                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 2,889                
Cumulative paid losses and LAE, net of reinsurance 649                
2026 | Motor Vehicle                  
Effects of Reinsurance [Line Items]                  
Incurred losses and LAE, net of reinsurance for the years ended March 31 3,205                
Cumulative paid losses and LAE, net of reinsurance $ 2,179