v3.25.4
Parent Company Only Condensed Financial Statements - Condensed Statements of Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Income Statements, Captions [Line Items]      
Total dividend and interest income $ 315,320 $ 290,702 $ 251,040
Net interest income 216,893 202,535 188,094
Provision for credit losses 89,822 76,502 37,810
Net interest income after allowance for credit losses 127,071 126,033 150,284
Other income, net 3,884 1,748 782
Income (loss) before income taxes 79,885 62,936 86,036
Income tax benefit (24,544) (21,011) (24,910)
Net income (loss) attributable to Medallion Financial Corp. 43,044 35,878 55,079
Parent Company [Member]      
Condensed Income Statements, Captions [Line Items]      
Dividend income 29,616 25,600 25,125
Interest income 804 1,260 1,243
Total dividend and interest income 30,420 26,860 26,368
Interest expense 14,893 14,800 12,771
Net interest income 15,527 12,060 13,597
Provision for credit losses (229) (133) (310)
Net interest income after allowance for credit losses 15,756 12,193 13,907
Other income, net [1] 1,266 997 2,625
Other expense, net 21,605 18,656 22,781
Income (loss) before income taxes (4,583) (5,466) (6,249)
Income tax benefit 7,083 3,095 5,291
Net income (loss) attributable to Medallion Financial Corp. 2,500 (2,371) (958)
Undistributed earnings of subsidiaries 40,544 38,249 56,037
Net income attributable to parent company $ 43,044 $ 35,878 $ 55,079
[1] Includes $1.3 million, $1.0 million, and $3.1 million of net gains on the disposition of taxi medallion assets for the years ended December 31, 2025, 2024, and 2023.