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Medallion Bank Preferred Stock (Non-controlling Interest) - Additional Information (Detail) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 17, 2019 | Jul. 21, 2011 | Dec. 31, 2020
Capital Purchase Program [Member] |  |  |
Changes In Equity And Comprehensive Income Line Items [Line Items] |  |  |
Preferred stock, liquidation preference per share |  |  | $ 1,000
U.S. Treasury Securities [Member] | Capital Purchase Program [Member] |  |  |
Changes In Equity And Comprehensive Income Line Items [Line Items] |  |  |
US Treasury shares purchased |  | 26,303 |
Series F Fixed-to-Floating Rate Non-cumulative Perpetual Preferred Stock [Member] |  |  |
Changes In Equity And Comprehensive Income Line Items [Line Items] |  |  |
Initial public offering shares | 1,840,000 |  |
Preferred stock, aggregate liquidation amount | $ 46,000,000 |  |
Preferred stock, net of liquidation amount | $ 42,485,000 |  |
Percentage of dividend payment rate | 8.00% |  |
Series F Fixed-to-Floating Rate Non-cumulative Perpetual Preferred Stock [Member] | SOFR [Member] |  |  |
Changes In Equity And Comprehensive Income Line Items [Line Items] |  |  |
Percentage of liquidation rate basis | 6.46% |  |
Dividend description of variable rate basis | three-month Secured Overnight Financing Rate, or SOFR |  |
Series E Senior Non-Cumulative Perpetual Preferred Stock [Member] | Capital Purchase Program [Member] |  |  |
Changes In Equity And Comprehensive Income Line Items [Line Items] |  |  |
Percentage of dividend payment rate |  |  | 9.00%
Aggregate purchase price |  | $ 26,303,000 |

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
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