CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($)	Preferred Stock 6.375% Series D preferred stock	Preferred Stock 6.25% Series E preferred stock	Preferred Stock 6.25% Series F preferred stock	Preferred Stock Balance as adjusted for the adoption of ASU 2020-06	Preferred Stock	Common Stock Balance as adjusted for the adoption of ASU 2020-06	Common Stock	Additional Paid-in Capital 6.25% Series F preferred stock	Additional Paid-in Capital Cumulative-effect adjustment	Additional Paid-in Capital Balance as adjusted for the adoption of ASU 2020-06	Additional Paid-in Capital	Accumulated Deficit Cumulative-effect adjustment	Accumulated Deficit Balance as adjusted for the adoption of ASU 2020-06	Accumulated Deficit	Total Arbor Realty Trust, Inc. Stockholders' Equity 6.375% Series D preferred stock	Total Arbor Realty Trust, Inc. Stockholders' Equity 6.25% Series E preferred stock	Total Arbor Realty Trust, Inc. Stockholders' Equity 6.25% Series F preferred stock	Total Arbor Realty Trust, Inc. Stockholders' Equity Cumulative-effect adjustment	Total Arbor Realty Trust, Inc. Stockholders' Equity Balance as adjusted for the adoption of ASU 2020-06	Total Arbor Realty Trust, Inc. Stockholders' Equity	Noncontrolling Interest Cumulative-effect adjustment	Noncontrolling Interest Balance as adjusted for the adoption of ASU 2020-06	Noncontrolling Interest	6.375% Series D preferred stock	6.25% Series E preferred stock	6.25% Series F preferred stock	Cumulative-effect adjustment	Balance as adjusted for the adoption of ASU 2020-06	Total
Balance at Dec. 31, 2020					$ 89,472,000		$ 1,232,000				$ 1,317,109,000			$ (63,442,000)						$ 1,344,371,000			$ 138,314,000						$ 1,482,685,000
Balance (in shares) at Dec. 31, 2020					21,272,133		123,181,173
Increase (Decrease) in Stockholders' Equity
Issuance of common stock	$ 222,463,000	$ 139,008,000					$ 202,000				342,416,000				$ 222,463,000	$ 139,008,000				342,618,000				$ 222,463,000	$ 139,008,000				342,618,000
Issuance of common stock (in shares)	9,200,000	5,750,000					20,222,879
Repurchase of common stock							$ (14,000)				(23,446,000)									(23,460,000)									(23,460,000)
Repurchase of common stock (in shares)							(1,399,999)
Redemption of preferred stock					$ (89,296,000)									(3,492,000)						(92,788,000)									(92,788,000)
Redemption of preferred stock (in shares)					(3,711,500)
Issuance of common stock from convertible debt							$ 4,000				(4,000)
Issuance of common stock from convertible debt (in shares)							386,459
Stock-based compensation, net							$ 6,000				(941,000)									(935,000)									(935,000)
Stock-based compensation, net (in shares)							616,524
Distributions - common stock														(137,282,000)						(137,282,000)									(137,282,000)
Distributions - preferred stock														(9,735,000)						(9,735,000)									(9,735,000)
Distributions - noncontrolling interest																							(17,488,000)						(17,488,000)
Redemption of operating partnership units					$ (12,000)															(12,000)			(21,098,000)						(21,110,000)
Redemption of operating partnership units (in shares)					(1,235,538)
Net income														224,625,000						224,625,000			26,806,000						251,431,000
Balance at Sep. 30, 2021					$ 361,635,000		$ 1,430,000				1,635,134,000			10,674,000						2,008,873,000			126,534,000						2,135,407,000
Balance (in shares) at Sep. 30, 2021					31,275,095		143,007,036
Balance at Jun. 30, 2021					$ 222,627,000		$ 1,417,000				1,620,898,000			(12,084,000)						1,832,858,000			123,909,000						1,956,767,000
Balance (in shares) at Jun. 30, 2021					25,552,233		141,738,609
Increase (Decrease) in Stockholders' Equity
Issuance of common stock		$ 139,008,000					$ 8,000				14,596,000					$ 139,008,000				14,604,000					$ 139,008,000				14,604,000
Issuance of common stock (in shares)		5,750,000					800,000
Issuance of common stock from convertible debt							$ 4,000				(4,000)
Issuance of common stock from convertible debt (in shares)							386,459
Stock-based compensation, net							$ 1,000				(356,000)									(355,000)									(355,000)
Stock-based compensation, net (in shares)							81,968
Distributions - common stock														(50,043,000)						(50,043,000)									(50,043,000)
Distributions - preferred stock														(4,916,000)						(4,916,000)									(4,916,000)
Distributions - noncontrolling interest																							(5,722,000)						(5,722,000)
Redemption of operating partnership units (in shares)					(27,138)
Net income														77,717,000						77,717,000			8,347,000						86,064,000
Balance at Sep. 30, 2021					$ 361,635,000		$ 1,430,000				1,635,134,000			10,674,000						2,008,873,000			126,534,000						2,135,407,000
Balance (in shares) at Sep. 30, 2021					31,275,095		143,007,036
Balance at Dec. 31, 2021				$ 556,163,000	$ 556,163,000	$ 1,514,000	$ 1,514,000		$ (8,684,000)	$ 1,789,229,000	1,797,913,000	$ 5,612,000	$ 68,144,000	62,532,000				$ (3,072,000)	$ 2,415,050,000	2,418,122,000	$ 625,000	$ 132,487,000	131,862,000				$ (2,447,000)	$ 2,547,537,000	2,549,984,000
Balance (in shares) at Dec. 31, 2021				39,325,095	39,325,095	151,362,181	151,362,181
Increase (Decrease) in Stockholders' Equity
Issuance of common stock			$ 77,522,000				$ 196,000	$ (130,000)			312,570,000						$ 77,392,000			312,766,000						$ 77,392,000			312,766,000
Issuance of common stock (in shares)			3,292,000				19,625,788
Stock-based compensation, net							$ 5,000				4,240,000									4,245,000									4,245,000
Stock-based compensation, net (in shares)							535,839
Distributions - common stock														(185,285,000)						(185,285,000)									(185,285,000)
Distributions - preferred stock														(30,618,000)						(30,618,000)									(30,618,000)
Distributions - noncontrolling interest																							(18,586,000)						(18,586,000)
Redemption of operating partnership units					$ (1,000)															(1,000)			(545,000)						(546,000)
Redemption of operating partnership units (in shares)					31,506
Net income														227,290,000						227,290,000			19,811,000						247,101,000
Balance at Sep. 30, 2022					$ 633,684,000		$ 1,715,000				2,105,909,000			79,531,000						2,820,839,000			133,167,000						2,954,006,000
Balance (in shares) at Sep. 30, 2022					42,585,589		171,523,808
Balance at Jun. 30, 2022					$ 633,684,000		$ 1,685,000				2,060,837,000			83,271,000						2,779,477,000			133,519,000						2,912,996,000
Balance (in shares) at Jun. 30, 2022					42,585,589		168,454,805
Increase (Decrease) in Stockholders' Equity
Issuance of common stock							$ 31,000				44,491,000									44,522,000									44,522,000
Issuance of common stock (in shares)							3,170,688
Stock-based compensation, net							$ (1,000)				581,000									580,000									580,000
Stock-based compensation, net (in shares)							(101,685)
Distributions - common stock														(66,447,000)						(66,447,000)									(66,447,000)
Distributions - preferred stock														(10,345,000)						(10,345,000)									(10,345,000)
Distributions - noncontrolling interest																							(6,354,000)						(6,354,000)
Net income					$ 0		$ 0				0			73,052,000						73,052,000			6,002,000						79,054,000
Balance at Sep. 30, 2022					$ 633,684,000		$ 1,715,000				$ 2,105,909,000			$ 79,531,000						$ 2,820,839,000			$ 133,167,000						$ 2,954,006,000
Balance (in shares) at Sep. 30, 2022					42,585,589		171,523,808