Investment in Securities

12 Months Ended

Dec. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Investment in Securities

Investment in Securities

The Company's securities portfolio primarily consists of Agency RMBS, non-Agency RMBS, CMBS, CLOs, ABS backed by consumer loans, and corporate debt and equity. The following tables detail the Company's investment in securities as of December 31, 2021 and 2020.

December 31, 2021:

							Gross Unrealized						Weighted Average
($ in thousands)	Current Principal		Unamortized Premium (Discount)		Amortized Cost		Gains		Losses		Fair Value		Coupon(1)		Yield		Life (Years)(2)
Long:
Agency RMBS:
15-year fixed-rate mortgages	$	223,140	$	10,668	$	233,808	$	696	$	(1,953)	$	232,551	2.65	%	1.44	%	4.45
20-year fixed-rate mortgages	46,353		2,800		49,153		16		(1,280)		47,889		2.42	%	1.31	%	5.62
30-year fixed-rate mortgages	1,265,499		59,047		1,324,546		8,187		(12,311)		1,320,422		3.01	%	2.13	%	7.00
Adjustable rate mortgages	9,131		566		9,697		25		(266)		9,456		3.15	%	2.12	%	4.62
Reverse mortgages	50,601		3,215		53,816		300		(1,106)		53,010		3.06	%	2.21	%	4.17
Interest only securities	n/a		n/a		32,607		3,371		(2,690)		33,288		3.46	%	8.91	%	4.33
Non-Agency RMBS	326,762		(130,015)		196,747		10,276		(5,418)		201,605		4.17	%	6.15	%	3.99
CMBS	46,873		(23,570)		23,303		469		(892)		22,880		2.84	%	7.00	%	7.85
Non-Agency interest only securities	n/a		n/a		16,701		1,405		(394)		17,712		0.64	%	14.71	%	5.43
CLOs	n/a		n/a		70,444		5,919		(14,034)		62,329		3.59	%	8.94	%	3.11
ABS backed by consumer loans	118,154		(43,139)		75,015		1,242		(3,149)		73,108		11.65	%	14.80	%	1.30
Corporate debt	28,565		(24,425)		4,140		1,723		(309)		5,554		0.65	%	7.50	%	1.96
Corporate equity	n/a		n/a		5,788		2,691		(923)		7,556		n/a		n/a		n/a
Total Long	2,115,078		(144,853)		2,095,765		36,320		(44,725)		2,087,360		3.37	%	3.37	%	5.90
Short:
U.S. Treasury securities	(93,750)		1,421		(92,329)		406		(267)		(92,190)		1.13	%	1.31	%	7.81
European sovereign bonds	(28,086)		170		(27,916)		156		(575)		(28,335)		0.01	%	0.05	%	3.18
Total Short	(121,836)		1,591		(120,245)		562		(842)		(120,525)		0.87	%	1.02	%	6.73
Total	$	1,993,242	$	(143,262)	$	1,975,520	$	36,882	$	(45,567)	$	1,966,835	3.52	%	3.24	%	5.94

(1)Weighted average coupon represents the weighted average coupons of the securities, rather than, in the case of collateralized securities, the coupon rates or loan rates on the underlying collateral.

(2)Expected average lives of MBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

December 31, 2020:

							Gross Unrealized						Weighted Average
($ in thousands)	Current Principal		Unamortized Premium (Discount)		Amortized Cost		Gains		Losses		Fair Value		Coupon(1)		Yield		Life (Years)(2)
Long:
Agency RMBS:
15-year fixed-rate mortgages	$	67,875	$	2,543	$	70,418	$	1,832	$	(36)	$	72,214	3.30	%	1.83	%	3.24
20-year fixed-rate mortgages	50,131		3,097		53,228		182		—		53,410		2.57	%	1.08	%	4.46
30-year fixed-rate mortgages	626,021		30,738		656,759		25,765		(444)		682,080		3.99	%	2.35	%	4.17
Adjustable rate mortgages	6,171		159		6,330		124		—		6,454		3.66	%	2.27	%	3.42
Reverse mortgages	89,383		5,152		94,535		3,123		(29)		97,629		3.97	%	2.37	%	4.60
Interest only securities	n/a		n/a		43,406		5,808		(1,558)		47,656		3.36	%	10.01	%	4.85
Non-Agency RMBS	321,842		(131,083)		190,759		15,880		(5,549)		201,090		3.15	%	6.40	%	5.46
CMBS	188,085		(61,763)		126,322		1,655		(16,910)		111,067		2.71	%	7.47	%	8.09
Non-Agency interest only securities	n/a		n/a		8,123		1,792		(305)		9,610		1.17	%	18.85	%	3.49
CLOs	n/a		n/a		208,907		2,563		(30,199)		181,271		3.67	%	8.50	%	3.50
ABS backed by consumer loans	69,646		(24,936)		44,710		221		(6)		44,925		11.95	%	18.57	%	1.11
Corporate debt	27,083		(23,187)		3,896		1,296		(3)		5,189		2.13	%	6.75	%	3.10
Corporate equity	n/a		n/a		1,604		376		(390)		1,590		n/a		n/a		n/a
Total Long	1,446,237		(199,280)		1,508,997		60,617		(55,429)		1,514,185		3.84	%	4.88	%	4.45
Short:
Corporate debt	(200)		(1)		(201)		—		(17)		(218)		5.09	%	4.67	%	6.42
European sovereign bonds	(37,804)		3,163		(34,641)		—		(3,783)		(38,424)		0.23	%	0.06	%	3.11
Total Short	(38,004)		3,162		(34,842)		—		(3,800)		(38,642)		0.26	%	0.09	%	3.13
Total	$	1,408,233	$	(196,118)	$	1,474,155	$	60,617	$	(59,229)	$	1,475,543	3.92	%	4.77	%	4.49

(1)Weighted average coupon represents the weighted average coupons of the securities, rather than, in the case of collateralized securities, the coupon rates or loan rates on the underlying collateral.

(2)Expected average lives of MBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

The following tables detail weighted average life of the Company's Agency RMBS as of December 31, 2021 and 2020.

December 31, 2021:

($ in thousands)	Agency RMBS						Agency Interest Only Securities
Estimated Weighted Average Life(1)	Fair Value		Amortized Cost		Weighted Average Coupon(2)		Fair Value		Amortized Cost		Weighted Average Coupon(2)
Less than three years	$	45,956	$	45,678	3.99	%	$	8,981	$	8,466	3.10	%
Greater than three years and less than seven years	950,723		955,157		3.24	%	22,497		22,379		3.76	%
Greater than seven years and less than eleven years	665,617		669,147		2.46	%	1,810		1,762		1.46	%
Greater than eleven years	1,032		1,038		1.99	%	—		—		—	%
Total	$	1,663,328	$	1,671,020	2.95	%	$	33,288	$	32,607	3.46	%

(1)Expected average lives of RMBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

(2)Weighted average coupon represents the weighted average coupons of the securities, rather than the coupon rates or loan rates on the underlying collateral.

December 31, 2020:

($ in thousands)	Agency RMBS						Agency Interest Only Securities
Estimated Weighted Average Life(1)	Fair Value		Amortized Cost		Weighted Average Coupon(2)		Fair Value		Amortized Cost		Weighted Average Coupon(2)
Less than three years	$	139,059	$	135,844	4.15	%	$	8,143	$	7,314	3.99	%
Greater than three years and less than seven years	770,173		742,946		3.79	%	32,669		29,362		3.74	%
Greater than seven years and less than eleven years	2,555		2,480		3.01	%	5,165		5,063		1.04	%
Greater than eleven years	—		—		—	%	1,679		1,667		0.83	%
Total	$	911,787	$	881,270	3.84	%	$	47,656	$	43,406	3.36	%

(1)Expected average lives of RMBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

(2)Weighted average coupon represents the weighted average coupons of the securities, rather than the coupon rates or loan rates on the underlying collateral.

The following tables detail weighted average life of the Company's long non-Agency RMBS, CMBS, and CLOs and other securities as of December 31, 2021 and 2020.

December 31, 2021:

($ in thousands)	Non-Agency RMBS and CMBS						Non-Agency IOs						CLOs and Other Securities(2)
Estimated Weighted Average Life(1)	Fair Value		Amortized Cost		Weighted Average Coupon(3)		Fair Value		Amortized Cost		Weighted Average Coupon(3)		Fair Value		Amortized Cost		Weighted Average Coupon(3)
Less than three years	$	96,277	$	92,396	4.31	%	$	6,360	$	5,504	0.85	%	$	110,953	$	114,392	8.82	%
Greater than three years and less than seven years	93,787		90,822		4.79	%	2,187		2,141		0.12	%	30,038		35,207		3.42	%
Greater than seven years and less than eleven years	26,639		28,293		1.80	%	9,165		9,056		0.63	%	—		—		—	%
Greater than eleven years	7,782		8,539		0.34	%	—		—		—	%	—		—		—	%
Total	$	224,485	$	220,050	4.03	%	$	17,712	$	16,701	0.64	%	$	140,991	$	149,599	7.55	%

(1)Expected average lives of MBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

(2)Other Securities includes asset-backed securities, backed by consumer loans and corporate debt.

(3)Weighted average coupon represents the weighted average coupons of the securities, rather than the coupon rates or loan rates on the underlying collateral.

December 31, 2020:

($ in thousands)	Non-Agency RMBS and CMBS						Non-Agency IOs						CLOs and Other Securities(2)
Estimated Weighted Average Life(1)	Fair Value		Amortized Cost		Weighted Average Coupon(3)		Fair Value		Amortized Cost		Weighted Average Coupon(3)		Fair Value		Amortized Cost		Weighted Average Coupon(3)
Less than three years	$	58,350	$	54,339	3.39	%	$	5,163	$	3,754	0.92	%	$	89,235	$	90,869	7.73	%
Greater than three years and less than seven years	114,815		109,161		3.45	%	4,447		4,369		1.37	%	139,830		163,670		3.69	%
Greater than seven years and less than eleven years	109,519		123,782		2.74	%	—		—		—	%	2,320		2,974		1.14	%
Greater than eleven years	29,473		29,799		1.46	%	—		—		—	%	—		—		—	%
Total	$	312,157	$	317,081	2.98	%	$	9,610	$	8,123	1.17	%	$	231,385	$	257,513	5.09	%

(1)Expected average lives of MBS are generally shorter than stated contractual maturities. Average lives are affected by the contractual maturities of the underlying mortgages, scheduled periodic payments of principal, and unscheduled prepayments of principal.

(2)Other Securities includes asset-backed securities, backed by consumer loans, corporate debt, and U.S. Treasury securities.

(3)Weighted average coupon represents the weighted average coupons of the securities, rather than the coupon rates or loan rates on the underlying collateral.

The following table details the components of interest income by security type for the years ended December 31, 2021, 2020, and 2019:

	Year Ended
(In thousands)	December 31, 2021						December 31, 2020						December 31, 2019
Security Type	Coupon Interest		Net Amortization		Interest Income		Coupon Interest		Net Amortization		Interest Income		Coupon Interest		Net Amortization		Interest Income
Agency RMBS	$	58,495	$	(24,642)	$	33,853	$	59,987	$	(31,975)	$	28,012	$	62,103	$	(24,731)	$	37,372
Non-Agency RMBS and CMBS	13,987		3,423		17,410		15,257		5,775		21,032		13,855		2,782		16,637
CLOs	10,701		(1,035)		9,666		14,103		3,529		17,632		15,857		(1,599)		14,258
Other securities(1)	17,332		(5,538)		11,794		11,545		(4,986)		6,559		7,157		(2,468)		4,689
Total	$	100,515	$	(27,792)	$	72,723	$	100,892	$	(27,657)	$	73,235	$	98,972	$	(26,016)	$	72,956

(1)Other securities includes ABS backed by consumer loans, corporate debt securities, and U.S. Treasury securities.

For the years ended December 31, 2021, 2020, and 2019 the Catch-Up Premium Amortization Adjustment was $1.3 million, $(4.5) million, and $(4.7) million, respectively.

The following tables present proceeds from sales and the resulting realized gains and (losses) of the Company's securities for the years ended December 31, 2021, 2020, and 2019.

(In thousands)	Year Ended December 31, 2021
Security Type	Proceeds(1)		Gross Realized Gains		Gross Realized Losses(2)		Net Realized Gain (Loss)
Agency RMBS	$	963,052	$	5,389	$	(10,859)	$	(5,470)
Non-Agency RMBS and CMBS	207,232		14,144		(2,723)		11,421
CLOs	130,747		4,163		(976)		3,187
Other securities(3)	194,025		2,588		(927)		1,661
Total	$	1,495,056	$	26,284	$	(15,485)	$	10,799

(1)Includes proceeds on sales of securities not yet settled as of period end.

(2)Excludes realized losses of $(3.3) million for the year ended December 31, 2021, related to adjustments to the cost basis of certain securities for which the Company has determined all or a portion of such securities cost basis to be uncollectible.

(3)Other securities includes ABS backed by consumer loans, corporate debt and equity, exchange-traded equity, and U.S. Treasury securities.

(In thousands)	Year Ended December 31, 2020
Security Type	Proceeds(1)		Gross Realized Gains		Gross Realized Losses(2)		Net Realized Gain (Loss)
Agency RMBS	$	1,439,413	$	16,260	$	(3,481)	$	12,779
Non-Agency RMBS and CMBS	145,323		13,692		(4,187)		9,505
CLOs	46,632		1,122		(4,251)		(3,129)
Other securities(3)	188,152		1,662		(9)		1,653
Total	$	1,819,520	$	32,736	$	(11,928)	$	20,808

(1)Includes proceeds on sales of securities not yet settled as of period end.

(2)Excludes realized losses of $(17.7) million for the year ended December 31, 2020, related to adjustments to the cost basis of certain securities for which the Company has determined all or a portion of such securities cost basis to be uncollectible.

(3)Other securities includes ABS backed by consumer loans, corporate debt and equity, exchange-traded equity, and U.S. Treasury securities.

(In thousands)	Year Ended December 31, 2019
Security Type	Proceeds(1)		Gross Realized Gains		Gross Realized Losses(2)		Net Realized Gain (Loss)
Agency RMBS	$	1,010,251	$	9,006	$	(2,254)	$	6,752
Non-Agency RMBS and CMBS	184,725		12,552		(4,869)		7,683
CLOs	62,063		1,286		(816)		470
Other securities(3)	636,886		1,113		2		1,115
Total	$	1,893,925	$	23,957	$	(7,937)	$	16,020

(1)Includes proceeds on sales of securities not yet settled as of period end.

(2)Excludes realized losses of $(28.7) million for the year ended December 31, 2019, related to adjustments to the cost basis of certain securities for which the Company has determined all or a portion of such securities cost basis to be uncollectible.

(3)Other securities includes ABS backed by consumer loans, corporate debt and equity, exchange-traded equity, and U.S. Treasury securities.

The following tables present the fair value and gross unrealized losses of our long securities, excluding those where there are expected credit losses as of the balance sheet date in relation to such securities' cost bases, by length of time that such securities have been in an unrealized loss position at December 31, 2021 and 2020.

December 31, 2021:

(In thousands)	Less than 12 Months				Greater than 12 Months				Total
Security Type	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Agency RMBS	$	1,083,017	$	(15,190)	$	39,124	$	(1,815)	$	1,122,141	$	(17,005)
Non-Agency RMBS and CMBS	11,296		(802)		4,462		(1,850)		15,758		(2,652)
CLOs	624		(14)		1,302		(2,749)		1,926		(2,763)
Total	$	1,094,937	$	(16,006)	$	44,888	$	(6,414)	$	1,139,825	$	(22,420)

December 31, 2020:

(In thousands)	Less than 12 Months				Greater than 12 Months				Total
Security Type	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Agency RMBS	$	126,926	$	(981)	$	832	$	(44)	$	127,758	$	(1,025)
Non-Agency RMBS and CMBS	20,474		(2,616)		2,599		(348)		23,073		(2,964)
CLOs	5,279		(753)		1,196		(1,131)		6,475		(1,884)
Other securities(1)	1,107		(8)		—		—		1,107		(8)
Total	$	153,786	$	(4,358)	$	4,627	$	(1,523)	$	158,413	$	(5,881)

(1)Other securities includes ABS backed by consumer loans, corporate debt and equity, and U.S. Treasury securities.

As described in Note 2, the Company evaluates the cost basis of its securities for impairment on at least a quarterly basis. As of December 31, 2021 and 2020, the Company had expected future credit losses, which it tracks for purposes of calculating interest income, of $17.5 million and $24.9 million, respectively, related to adverse changes in estimated future cash flows on its securities. Certain of the Company's securities, at the date of acquisition, have experienced or are expected to experience

more-than-insignificant deterioration in credit quality since origination and the Company has established an initial estimate for credit losses on such securities; as of December 31, 2021 and 2020, the estimated credit losses on such securities was $0.3 million and $2.6 million, respectively.

The Company has determined for certain securities that a portion of such securities cost basis is not collectible. For the years ended December 31, 2021 and 2020, the Company recognized realized losses on these securities of $(3.3) million and $(17.7) million, respectively. Such losses are reflected in Net realized gains (losses) on securities and loans, net, on the Consolidated Statement of Operations.

For the year ended December 31, 2019, the Company recognized an impairment charge of $28.7 million on the cost basis of its securities, which is included in Realized gains (losses) on securities and loans, net, on the Consolidated Statement of Operations.