INTEREST INCOME AND INTEREST EXPENSE (Tables)

12 Months Ended

Dec. 31, 2020

Banking and Thrift, Interest [Abstract]

Summary of Interest Income Recognition Methodology for Residential Investment Securities

The following table summarizes the interest income recognition methodology for Residential Securities:

	Interest Income Methodology
Agency
Fixed-rate pass-through (1)	Effective yield (3)
Adjustable-rate pass-through (1)	Effective yield (3)
Multifamily (1)	Contractual Cash Flows
CMO (1)	Effective yield (3)
Reverse mortgages (2)	Prospective
Interest-only (2)	Prospective
Residential credit
CRT (2)	Prospective
Alt-A (2)	Prospective
Prime (2)	Prospective
Subprime (2)	Prospective
NPL/RPL (2)	Prospective
Prime jumbo (2)	Prospective
Prime jumbo interest-only (2)	Prospective
(1) Changes in fair value are recognized in Other comprehensive income (loss) on the accompanying Consolidated Statements of Comprehensive Income (Loss). (2) Changes in fair value are recognized in Net unrealized gains (losses) on instruments measured at fair value through earnings on the accompanying Consolidated Statements of Comprehensive Income (Loss). (3) Effective yield is recalculated for differences between estimated and actual prepayments and the amortized cost is adjusted as if the new effective yield had been applied since inception.

Components of Company's Interest Income and Interest Expense

The following presents the components of the Company’s interest income and interest expense for the years ended December 31, 2020, 2019 and 2018.

	For the Years Ended December 31,
	2020		2019		2018
Interest income	(dollars in thousands)
Residential Securities (1)	$	1,718,960	$	3,195,546	$	2,830,521
Residential mortgage loans (1)	170,259		150,066		83,260
Commercial investment portfolio (1) (2)	338,763		378,395		356,981
U.S. Treasury securities	—		—		160
Reverse repurchase agreements	1,643		63,290		61,641
Total interest income	$	2,229,625	$	3,787,297	$	3,332,563
Interest expense
Repurchase agreements	705,218		2,513,282		1,698,930
Debt issued by securitization vehicles	142,602		141,981		98,013
Participations issued	78		—		—
Other	51,214		129,612		100,917
Total interest expense	899,112		2,784,875		1,897,860
Net interest income	$	1,330,513	$	1,002,422	$	1,434,703
(1)    Includes assets transferred or pledged to securitization vehicles. (2)    Includes commercial real estate debt and preferred equity and corporate debt.