Consolidated Balance Sheet - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Assets
Cash			$ 110,233
Investment securities			908,297
Loans			864,819
Loans, at fair value		$ 26,558	338,867
Allowance for losses		(29,484)
Net loans receivable		1,060,061
Other assets			58,827
Total assets		1,571,407	1,077,357
Liabilities
Total liabilities			913,127
Stockholders' equity
Total stockholders' equity	[1]		164,230
Total equity		280,415	287,159
Total liabilities and equity			1,077,357
Medallion Bank and Other Controlled Subsidiaries [Member]
Assets
Investment in affiliates			302,147
Bank Holding Company Accounting [Member]
Assets
Cash	[2]	10,678
Federal funds sold		132,882
Equity investments		10,752
Investment securities		45,757
Loans		1,089,545
Allowance for losses	[3]	(29,484)
Net loans receivable	[2]	1,060,061
Accrued interest receivable	[2]	7,005
Property and equipment, net		1,093
Loan collateral in process of foreclosure	[2]	59,761
Goodwill and intangible assets		210,761
Other assets		32,657
Total assets		1,571,407
Liabilities
Accounts payable and accrued expenses	[2]	17,789
Accrued interest payable	[2]	6,118
Deposits		946,975
Short-term borrowings	[2]	160,218
Deferred tax liabilities and other tax payables		2,011
Long-term debt		157,881
Total liabilities		1,290,992
Commitments and contingencies
Stockholders' equity
Preferred stock (1,000,000 shares of $0.01 par value stock authorized - none outstanding)
Common stock (50,000,000 shares of $0.01 par value stock authorized - 27,391,295 shares at September 30, 2018 and 27,294,327 shares at December 31, 2017 issued)		274
Additional paid in capital		274,163
Treasury stock (2,951,243 shares at September 30, 2018 and December 31, 2017)		(24,919)
Accumulated other comprehensive loss		(469)
Retained earnings		3,871
Total stockholders' equity		252,920
Non-controlling interest in consolidated subsidiaries		27,495
Total equity		280,415
Total liabilities and equity		$ 1,571,407
Number of shares outstanding		24,440,052
Book value per share/net asset value per share		$ 10.35
Investment Company Accounting [Member]
Assets
Cash	[2]		12,690
Equity investments, at fair value			5,213
Net investments	[2]		610,135
Accrued interest receivable	[2]		547
Property and equipment, net			235
Investments other than securities			7,450
Other assets			4,465
Total assets			635,522
Liabilities
Accounts payable and accrued expenses	[2]		4,373
Accrued interest payable	[2]		3,831
Deferred tax liabilities and other tax payables			12,536
Funds borrowed	[2]		327,623
Total liabilities			348,363
Commitments and contingencies
Stockholders' equity
Preferred stock (1,000,000 shares of $0.01 par value stock authorized - none outstanding)
Common stock (50,000,000 shares of $0.01 par value stock authorized - 27,391,295 shares at September 30, 2018 and 27,294,327 shares at December 31, 2017 issued)			273
Additional paid in capital			273,716
Treasury stock (2,951,243 shares at September 30, 2018 and December 31, 2017)			(24,919)
Accumulated undistributed net investment loss			(65,592)
Net unrealized appreciation on investments, net of tax			103,681
Total stockholders' equity			287,159
Total equity			287,159
Total liabilities and equity			$ 635,522
Number of shares outstanding			24,343,084
Book value per share/net asset value per share			$ 11.80
Investment Company Accounting [Member] | Affiliated Entity [Member]
Assets
Investment in affiliates			$ 4,308
Investment Company Accounting [Member] | Medallion Bank and Other Controlled Subsidiaries [Member]
Assets
Investment in affiliates			302,147
Investment Company Accounting [Member] | Parent Loan [Member]
Assets
Loans, at fair value			208,279
Investment Company Accounting [Member] | Commercial Loans [Member]
Assets
Loans, at fair value			53,737
Investment Company Accounting [Member] | Commercial Loans to Affiliated Entities [Member]
Assets
Loans, at fair value			999
Investment Company Accounting [Member] | Commercial Loans To Controlled Subsidiaries [Member]
Assets
Loans, at fair value			$ 35,452

[1] Includes $152,267 of unrealized appreciation on Medallion Bank, in excess of Medallion Bank's book value as of December 31, 2017.

[2] See Note 18 for details of balances related to a consolidated variable interest entity.

[3] Includes $15,587 of a general reserve for current and performing medallion loans under 90 days past due, as an additional buffer against future losses, representing 53% of the total allowance, and 7% of the loans in question.