Interest income and interest expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Interest income
Total loans	$ 60,617	$ 66,436
Total loans, held for sale, at fair value	2,730	1,636
Total Paycheck Protection Program loans	6,892
Mortgage backed securities, at fair value	3,132	1,479
Total interest income	73,371	69,551
Interest expense
Secured borrowings	(17,574)	(12,758)
Paycheck Protection Program Liquidity Facility borrowings	(334)
Securitized debt obligations of consolidated VIEs	(19,093)	(19,529)
Guaranteed loan financing	(3,651)	(6,243)
Senior secured note	(3,459)	(3,472)
Convertible note	(2,188)	(2,188)
Corporate debt	(4,462)	(2,740)
Total interest expense	(50,761)	(46,930)
Net interest income before provision for loan losses	22,610	22,621
Acquired SBA 7(a) loans
Interest income
Total loans	4,926	6,202
Acquired loans
Interest income
Total loans	13,810	15,411
Total loans, held for sale, at fair value	2	68
Originated Transitional loans
Interest income
Total loans	25,560	22,219
Originated SBC loans, at fair value
Interest income
Total loans	229	317
Originated SBC loans
Interest income
Total loans	12,441	15,998
Originated SBA 7(a) loans
Interest income
Total loans	3,614	6,269
Paycheck Protection Program Loans, Held For Investment
Interest income
Total Paycheck Protection Program loans	6,721
Paycheck Protection Program loans, at fair value
Interest income
Total Paycheck Protection Program loans	171
Originated Residential Agency loans
Interest income
Total loans	37	20
Total loans, held for sale, at fair value	2,121	1,297
Originated Freddie Mac loans
Interest income
Total loans, held for sale, at fair value	$ 607	$ 271

The amount of interest and fee income earned from loans under the Paycheck Protection Program.

No definition available.

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- Definition

Interest expense incurred during the reporting period on convertible note.

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No definition available.

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Interest expense incurred during the reporting period on Corporate Debt.

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No definition available.

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Interest expense related to Paycheck Protection Program Liquidity Facility borrowings.

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Aggregate amount of interest expense on senior secured note.

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No definition available.

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- Definition

This element represents interest incurred for borrowed money which was used to produce goods or render services.

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Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

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The amount of interest and fee income earned from loans held-for-sale, including mortgage loans, and interest earned from direct financing and sales-type leases held-for-sale.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

Interest expense on beneficial interests issued by consolidated variable interest entities.

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- Definition

The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase.

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The net amount of operating interest income (expense).

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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securitized, pass-through debt securities collateralized by real estate mortgage loans.

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