CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (184,007)		$ 2,700,949
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Amortization of Investment Securities premiums and discounts, net	466,338		943,094
Amortization of commercial real estate investment premiums and discounts, net	607		326
Amortization of intangibles	445		2,614
Amortization of deferred financing costs	8,023		6,114
Amortization of net origination fees and costs, net	(3,337)
Amortization of contingent beneficial conversion feature and equity component of Convertible Senior Notes	24,128		11,804
Depreciation expense	1,264
Net gain on sale of commercial real estate	(2,748)
Net (gains) losses on sales of Agency mortgage-backed securities and debentures	(91,314)		(374,443)
Stock compensation expense	998		1,762
Impairment of goodwill			23,987
Loss on previously held equity interest in CreXus			18,896
Unrealized (gains) losses on interest rate swaps	75,287		(1,441,099)
Net unrealized (gains) losses on interest-only Agency mortgage-backed securities	56,652		(184,549)
Net (gains) losses on trading assets	188,041		40,427
Proceeds from repurchase agreements of RCap	747,790,774		1,026,645,402
Payments on repurchase agreements of RCap	(742,842,907)		(1,037,381,608)
Proceeds from reverse repurchase agreements	60,698,578		318,678,534
Payments on reverse repurchase agreements	(60,598,578)		(316,898,513)
Proceeds from securities borrowed	23,888,955		208,108,715
Payments on securities borrowed	(21,306,062)		(209,387,727)
Proceeds from securities loaned	41,939,298		372,155,568
Payments on securities loaned	(44,466,959)		(370,664,793)
Proceeds from U.S. Treasury securities	3,159,253		109,762,391
Payments on U.S. Treasury securities	(3,920,425)		(109,750,041)
Net payments on derivatives	(98,704)		(26,020)
Net change in:
Due to / from brokers	8,596		683
Other assets	(2,011)		(11,298)
Accrued interest and dividends receivable	(27,362)		119,211
Receivable for investment advisory income	(1,530)		7,675
Accrued interest payable	34,733		(24,141)
Accounts payable and other liabilities	2,958		23,838
Net cash provided by (used in) operating activities	4,798,984		(6,892,242)
Cash flows from investing activities:
Payments on purchases of Agency mortgage-backed securities and debentures	(27,898,595)		(31,529,258)
Proceeds from sales of Agency mortgage-backed securities and debentures	15,529,556		42,719,851
Principal payments on Agency mortgage-backed securities	5,945,647		19,550,338
Proceeds from Agency debentures called			2,147,205
Payments on purchases of corporate debt	(114,183)		(39,717)
Proceeds from corporate debt called			24,252
Principal payments on corporate debt	88,078		3,586
Acquisition of CreXus			(724,889)
Origination of commercial real estate investments, net	(206,849)		(563,982)
Proceeds from sales of commercial real estate held for sale	26,019		20,192
Principal payments on commercial real estate investments	237,796		50,424
Purchase of investments in real estate	(36,743)
Proceeds from derivatives			7,465
Net cash provided by (used in) investing activities	(6,429,274)		31,665,467
Cash flows from financing activities:
Proceeds from repurchase agreements	147,564,412		322,086,276
Principal payments on repurchase agreements	(144,682,558)		(344,924,458)
Proceeds from issuance of securitized debt	260,700
Payment of deferred financing cost	(4,288)
Proceeds from exercise of stock options			2,204
Net proceeds from direct purchases and dividend reinvestments	1,785		2,166
Proceeds from mortgages payable	23,375
Principal payments on participation sold	(207)		(132)
Principal payments on mortgages payable	(30)
Net payment on share repurchase			(141,149)
Dividends paid	(906,714)		(1,291,199)
Net cash provided by (used in) financing activities	2,256,475		(24,266,292)
Net (decrease) increase in cash and cash equivalents	626,185		506,933
Cash and cash equivalents, beginning of period	552,436	[1]	615,789
Cash and cash equivalents, end of period	1,178,621		1,122,722
Supplemental disclosure of cash flow information:
Interest received	2,454,211		3,209,456
Dividends received	21,141		17,576
Investment advisory income received	18,955		63,070
Interest paid (excluding interest paid on interest rate swaps)	370,784		517,134
Net interest paid on interest rate swaps	640,316		648,638
Taxes paid	6,925		6,763
Noncash investing activities:
Receivable for investments sold	855,161		934,964
Payable for investments purchased	2,153,789		2,546,467
Net change in unrealized gains (losses) on available-for-sale securities, net of reclassification adjustment	1,781,113		(4,508,032)
Noncash financing activities:
Dividends declared, not yet paid	284,278		331,557
Contingent beneficial conversion feature on 4% Convertible Senior Notes	$ 12,765		$ 12,833

[1] Derived from the audited consolidated financial statements at December 31, 2013.