CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Cash pledged as collateral		$ 1,584,686	$ 1,584,701
Agency debentures, pledged assets		0	1,368,350
Credit risk transfer securities, pledged assets		184,160	0
Commercial real estate debt investments, pledged assets		2,911,828	0
Commercial real estate debt and preferred equity, held for investment, pledged assets	[1]	578,820	0
Receivable for investment advisory income, from affiliates		$ 0	$ 10,402
Common Stock, par value		$ 0.01	$ 0.01
Common Stock, shares authorized		1,956,937,500	1,956,937,500
Common Stock, shares issued		935,929,561	947,643,079
Common Stock, shares outstanding		935,929,561	947,643,079
Senior Secured mortgages of Consolidated VIE, carrying value		$ 262,700	$ 398,600
Cash of Consolidated VIE	[2]	1,769,258	1,741,244
Commercial real estate debt and preferred equity, held for investment, allowance for losses		0	0
Securitized debt of a consolidated VIE		2,366,878	0
FREMF Trust
Cash of Consolidated VIE		48,500	0
Non-Agency mortgage-backed securities [Member]
Mortgage-backed securities, pledged assets		$ 744,783	$ 0
7.875% Series A Cumulative Redeemable Preferred Stock
Preferred Stock, shares authorized		7,412,500	7,412,500
Preferred Stock, shares issued		7,412,500	7,412,500
Preferred Stock, shares outstanding		7,412,500	7,412,500
7.625% Series C Cumulative Redeemable Preferred Stock
Preferred Stock, shares authorized		12,650,000	12,650,000
Preferred Stock, shares issued		12,000,000	12,000,000
Preferred Stock, shares outstanding		12,000,000	12,000,000
7.50% Series D Cumulative Redeemable Preferred Stock
Preferred Stock, shares authorized		18,400,000	18,400,000
Preferred Stock, shares issued		18,400,000	18,400,000
Preferred Stock, shares outstanding		18,400,000	18,400,000
Agency Mortgage Backed Securities
Mortgage-backed securities, pledged assets		$ 60,678,548	$ 74,006,480

[1] Includes senior securitized commercial mortgage loans of a consolidated VIE with a carrying value of $262.7 million and $398.6 million carried at amortized cost, net of an allowance for losses of $0, at December 31, 2015 and 2014, respectively.

[2] Includes cash of consolidated VIEs of $48.5 million and $0 at December 31, 2015 and 2014, respectively.