Consulting services related party revenue.

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- Definition

Loans receivable commercial and industrial advance.

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Loans receivable commercial and industrial percentage.

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Payments for related party service.

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- Definition

Percentage of equity raised from outside investors.

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- Definition

Related party transaction bonus percentage.

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- Definition

Valuation of equity raised from outside investors.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Interest and fee income related to commercial loans including industrial and agricultural, real estate (commercial and residential, construction and development), trade financing, and lease financing.

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Amount before allowance of loans issued to commercial and industrial institutions. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes real estate loans and loans covered under loss sharing agreements.

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Amount before allowance of loans issued to financial institutions, including, but not limited to, real estate investment trusts, mortgage companies, and banks. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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- Definition

The amount for notes payable (written promise to pay), due to related parties.

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The cash inflow associated with the collection of receivables arising from the lease of real estate, equipment or other fixed assets for a specified time in exchange for payment, usually in the form of rent; excludes proceeds from sales-type lease transactions, which are classified as operating activities.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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Amount of expense for salary and wage arising from service rendered by nonofficer and officer employees. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

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Percentage of vesting of share-based compensation awards.

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Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Medallion Bank [Member]
Related Party Transaction [Line Items]
Loan receivable to bank			$ 318,961,000		$ 318,961,000	$ 311,988,000
Medallion Servicing Corporation [Member]
Related Party Transaction [Line Items]
Interest income		$ 1,290,000	1,295,000		2,608,000
Medallion Fine Art Inc [Member]
Related Party Transaction [Line Items]
Interest income	$ 10,000		44,000	$ 10,000	126,000
Outstanding loan amount to Medallion Fine Art						999,000
Loan amount advanced						0
Loan amount repaid						$ 2,015,000
Medallion Fine Art Inc [Member] \| Paid In Kind [Member]
Related Party Transaction [Line Items]
Interest rate on loan						12.00%
RPAC Racing, LLC [Member]
Related Party Transaction [Line Items]
Interest income		$ 0	$ 118,000		$ 208,000
Outstanding loan amount to Medallion Fine Art						$ 16,472,000
Interest rate on loan						2.00%
Officer [Member] \| LAX Group, LLC [Member]
Related Party Transaction [Line Items]
Salary from related party				172,000
Consulting services revenue from related party				$ 4,200
Officer [Member] \| Common Class B [Member] \| LAX Group, LLC [Member]
Related Party Transaction [Line Items]
Equity ownership percentage by a related party	10.00%			10.00%
Common stock vesting percentage				3.34%
Percentage of equity raised from outside investors				5.00%
Percentage of bonus received from related party				10.00%
Petty Trust [Member] \| RPAC Racing, LLC [Member]
Related Party Transaction [Line Items]
Annual payment for services provided to the entity				$ 700,000
Note payable to the Petty Trust	$ 7,078,000			$ 7,078,000
Interest percentage of Notes payable				2.00%
Minimum [Member] \| Officer [Member] \| Common Class B [Member] \| LAX Group, LLC [Member]
Related Party Transaction [Line Items]
Valuation of equity raised from outside investors				$ 1,500,000