Apollo Commercial Real Estate Finance (ARI) 10-K 27 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 20, 2014	Jun. 30, 2012
Entity Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'ARI	'	'
Entity Registrant Name	'Apollo Commercial Real Estate Finance, Inc.	'	'
Entity Central Index Key	'0001467760	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	37,125,475	'
Entity Public Float	'	'	$581,396,403

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Cash	$20,096	$108,619
Restricted cash	30,127	0
Securities available-for-sale, at estimated fair value	33,362	67,079
Securities, at estimated fair value	158,086	211,809
Repurchase agreements, held for investment	0	6,598
Interest receivable	6,022	4,277
Deferred financing costs, net	628	678
Other assets	600	203
Total Assets	907,504	788,430
Liabilities:	'	'
Borrowings under repurchase agreements	202,033	225,158
Derivative instruments, net	0	155
Accounts payable and accrued expenses	2,660	1,265
Payable to related party	2,628	2,037
Dividends payable	17,227	12,891
Total Liabilities	224,548	241,506
Commitments and Contingencies (see Note 13)	'	'
Stockholders’ Equity:	'	'
Preferred stock, $0.01 par value, 50,000,000 shares authorized and 3,450,000 shares issued and outstanding in 2012	35	35
Common stock, $0.01 par value, 450,000,000 shares authorized, 36,888,467 and 28,044,106 shares issued and outstanding in 2013 and 2012, respectively	369	280
Additional paid-in-capital	697,610	546,065
Retained earnings (accumulated deficit)	-14,188	574
Accumulated other comprehensive income (loss)	-870	-30
Total Stockholders’ Equity	682,956	546,924
Total Liabilities and Stockholders’ Equity	907,504	788,430
Commercial mortgage loans [Member]	'	'
Assets:	'	'
Loans, held for investment	161,099	142,921
Subordinate Loans [Member]	'	'
Assets:	'	'
Loans, held for investment	$497,484	$246,246

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	3,450,000	3,450,000
Preferred stock, shares outstanding	3,450,000	3,450,000
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized	450,000,000	450,000,000
Common stock, shares issued	36,888,467	28,044,106
Common stock, shares outstanding	36,888,467	28,044,106

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net interest income:	'	'	'	'	'	'	'	'	'	'	'
Interest income from securities	$3,633	$2,533	$3,014	$3,087	$3,120	$3,674	$3,230	$5,323	$12,267	$15,347	$25,323
Interest income from commercial mortgage loans	3,812	4,954	3,676	3,592	2,930	2,825	2,791	2,234	16,034	10,780	9,153
Interest income from subordinate loans	14,026	12,184	11,498	11,454	7,350	6,144	5,859	5,313	49,162	24,666	13,678
Interest income from repurchase agreements	0	0	0	2	366	2,361	2,000	1,559	0	6,286	4,764
Interest expense	-1,450	-885	-955	-1,068	-1,463	-1,768	-1,929	-3,242	-4,356	-8,402	-14,454
Net interest income	20,021	18,786	17,233	17,067	12,303	13,236	11,951	11,187	73,107	48,677	38,464
Operating expenses:	'	'	'	'	'	'	'	'	'	'	'
General and administrative expenses (includes equity-based compensation of $3,488 in 2013, $3,624 in 2012 and $1,788 in 2011 )	-2,438	-1,793	-1,437	-1,895	-1,315	-2,430	-2,762	-2,036	-7,563	-8,543	-5,652
Management fees to related party	-2,627	-2,625	-2,600	-2,160	-2,040	-1,518	-1,292	-1,289	-10,012	-6,139	-4,728
Total operating expenses	-5,065	-4,418	-4,037	-4,055	-3,355	-3,948	-4,054	-3,325	-17,575	-14,682	-10,380
Interest income from cash balances	1	3	16	0	6	0	0	1	20	7	13
Realized gain on sale of securities	0	0	0	0	0	0	0	262	0	262	0
Unrealized gain (loss) on securities	908	-1,472	-1,421	-1,080	16	3,010	2,078	1,385	-3,065	6,489	481
Loss on derivative instruments (includes unrealized gains (losses) of $155 in 2013, $323 in 2012 and $(865) in 2011)	-1	1	-2	0	-2	-87	-65	-417	-2	-572	-2,696
Net income	15,864	12,900	11,789	11,932	8,968	12,211	9,910	9,093	52,485	40,181	25,882
Preferred dividends	'	'	'	'	'	'	'	'	-7,440	-3,079	0
Net income available to common stockholders	$14,004	$11,040	$9,929	$10,072	$7,108	$10,992	$9,910	$9,093	$45,045	$37,102	$25,882
Basic and diluted net income per share of common stock (in dollars per share)	$0.37	$0.29	$0.27	$0.33	$0.26	$0.52	$0.47	$0.43	$1.26	$1.64	$1.35
Basic weighted average shares of common stock outstanding	36,886,619	36,883,002	36,880,410	30,105,939	27,297,600	20,571,478	20,570,616	20,561,032	35,212,211	22,259,386	18,840,954
Diluted weighted average shares of common stock outstanding	37,390,369	37,379,469	37,373,885	30,480,689	27,608,787	20,992,312	20,991,450	20,966,426	35,679,755	22,648,819	19,089,578

Consolidated_Statements_of_Ope1

Consolidated Statements of Operations (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
General and administrative expenses, equity-based compensation	$3,488	$3,624	$1,788
Unrealized gains (losses) on derivative instruments	$155	$323	($865)

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income available to common stockholders	$45,045	$37,102	$25,882
Change in net unrealized gain (loss) on securities available-for-sale	-840	-593	-5,796
Comprehensive income	$44,205	$36,509	$20,086

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders Equity (USD $)

Total

Preferred Stock [Member]

Common Stock [Member]

Preferred Stock [Member]

Preferred Stock [Member]

Common Stock [Member]

Common Stock [Member]

Additional Paid In Capital [Member]

Additional Paid In Capital [Member]

Additional Paid In Capital [Member]

Returned Earnings/ (Accumulated Deficit) [Member]

Accumulated Other Comprehensive Loss [Member]

In Thousands, except Share data, unless otherwise specified

Preferred Stock [Member]

Common Stock [Member]

Beginning balance at Dec. 31, 2010

$297,838

'

'

'

'

$175

'

$291,304

'

'

$0

$6,359

Beginning balance, Shares at Dec. 31, 2010

'

'

'

'

'

17,551,828

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Capital increase related to Equity Incentive Plan

1,788

'

'

'

'

'

'

1,788

'

'

'

'

Issuance of restricted stock

1

'

'

'

'

1

'

'

'

'

'

'

Issuance of restricted stock, Shares

'

'

'

'

'

9,204

'

'

'

'

'

'

Issuance of stock

'

'

49,980

'

'

'

30

'

'

49,950

'

'

Issuance of stock, Shares

'

'

'

'

'

'

3,000,000

'

'

'

'

'

Offering costs

-1,789

'

'

'

'

'

'

-1,789

'

'

'

'

Net income

25,882

'

'

'

'

'

'

'

'

'

25,882

'

Change in net unrealized gain on securities available-for-sale

-5,796

'

'

'

'

'

'

'

'

'

'

-5,796

Dividends on common stock

-30,926

'

'

'

'

'

'

-5,044

'

'

-25,882

'

Ending balance at Dec. 31, 2011

336,978

'

'

'

'

206

'

336,209

'

'

0

563

Ending balance, Shares at Dec. 31, 2011

'

'

'

'

'

20,561,032

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Capital increase related to Equity Incentive Plan

2,845

'

'

'

'

'

'

2,845

'

'

'

'

Issuance of restricted stock

0

'

'

'

'

0

'

'

'

'

'

'

Issuance of restricted stock, Shares

'

'

'

'

'

11,080

'

'

'

'

'

'

Issuance of stock

'

86,250

124,472

'

35

'

74

'

86,215

124,398

'

'

Issuance of stock, Shares

'

'

'

'

3,450,000

'

7,471,994

'

'

'

'

'

Offering costs

-3,602

'

'

'

'

'

'

-3,602

'

'

'

'

Net income

40,181

'

'

'

'

'

'

'

'

'

40,181

'

Change in net unrealized gain on securities available-for-sale

-593

'

'

'

'

'

'

'

'

'

'

-593

Dividends on preferred stock

-3,079

'

'

'

'

'

'

'

'

'

-3,079

'

Dividends on common stock

-36,528

'

'

'

'

'

'

'

'

'

-36,528

'

Ending balance at Dec. 31, 2012

546,924

'

'

35

'

280

'

546,065

'

'

574

-30

Ending balance, Shares at Dec. 31, 2012

'

'

'

3,450,000

'

28,044,106

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Capital increase related to Equity Incentive Plan

3,457

'

'

'

'

'

'

3,457

'

'

'

'

Issuance of restricted stock

[1]

'

'

'

'

'

0

'

'

'

'

'

'

Issuance of restricted stock, Shares

'

'

'

'

'

36,304

'

'

'

'

'

'

Issuance of stock

'

'

148,804

'

'

'

89

'

'

148,715

'

'

Issuance of stock, Shares

'

'

'

'

'

'

8,808,057

'

'

'

'

'

Offering costs

-627

'

'

'

'

'

'

-627

'

'

'

'

Net income

52,485

'

'

'

'

'

'

'

'

'

52,485

'

Change in net unrealized gain on securities available-for-sale

-840

'

'

'

'

'

'

'

'

'

'

-840

Dividends on preferred stock

-7,440

'

'

'

'

'

'

'

'

'

-7,440

'

Dividends on common stock

-59,807

'

'

'

'

'

'

'

'

'

-59,807

'

Ending balance at Dec. 31, 2013

$682,956

'

'

$35

'

$369

'

$697,610

'

'

($14,188)

($870)

Ending balance, Shares at Dec. 31, 2013

'

'

'

3,450,000

'

36,888,467

'

'

'

'

'

'

[1]

Rounds to zero.

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows provided by operating activities:	'	'	'
Net income	$52,485	$40,181	$25,882
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Premium amortization and (discount accretion), net	-5,721	-399	7,782
Amortization of deferred financing costs	866	1,962	1,454
Equity-based compensation	3,457	2,845	1,788
Unrealized gain (loss) on securities	3,065	-6,489	-481
Unrealized gain (loss) on derivative instruments	-155	-323	865
Realized loss on sale of security	0	-262	0
Changes in operating assets and liabilities:	'	'	'
Accrued interest receivable, less purchased interest	-9,488	2,296	-2,802
Other assets	-397	-186	14
Accounts payable and accrued expenses	1,280	-260	339
Payable to related party	591	739	615
Net cash provided by operating activities	45,983	40,104	35,456
Cash flows used in investing activities:	'	'	'
Proceeds from sale of securities available-for-sale	0	121,338	0
Proceeds from sale of securities at estimated fair value	0	16,918	0
Fees received from commercial mortgage loans	280	0	0
Funding of securities at estimated fair value	-134,389	-70,676	0
Funding of commercial mortgage loans	-32,643	-62,490	-8,800
Funding of subordinate loans	-361,035	-96,023	-89,856
Funding of repurchase agreements	0	0	-47,439
Principal payments received on securities available-for-sale	186,138	113,216	52,555
Principal payments received on securities at estimated fair value	32,344	98,401	23,138
Principal payments received on commercial mortgage loans	18,117	31,300	9,489
Principal payments received on subordinate loans	118,771	108	35
Principal payments received on repurchase agreements	6,598	40,841	0
Net cash provided by (used in) investing activities	-165,819	192,933	-60,878
Cash flows from financing activities:	'	'	'
Proceeds from issuance of common stock	148,804	124,472	49,980
Proceeds from issuance of preferred stock	0	86,250	0
Payment of offering costs	-824	-3,324	-2,257
Payment of deferred underwriting fee	0	0	-10,000
Repayments of TALF borrowings	0	-251,327	-46,007
Proceeds from repurchase agreement borrowings	182,218	313,860	69,014
Repayments of repurchase agreement borrowings	-205,343	-379,401	-21,042
Increase in restricted cash related to financing activities	-30,127	0	0
Deferred financing costs	-504	-1,097	-1,180
Dividends on common stock	-55,471	-33,890	-29,412
Dividends on preferred stock	-7,440	-1,529	0
Net cash provided by (used in) financing activities	31,313	-145,986	9,096
Net increase (decrease) in cash and cash equivalents	-88,523	87,051	-16,326
Cash and cash equivalents, beginning of period	108,619	21,568	37,894
Cash and cash equivalents, end of period	20,096	108,619	21,568
Supplemental disclosure of cash flow information:	'	'	'
Interest paid	2,809	6,926	14,772
Supplemental disclosure of non-cash financing activities:	'	'	'
Offering costs payable	109	306	26
Dividend declared, not yet paid	17,227	12,891	8,703
Deferred financing costs, not yet paid	$312	$0	$500

Organization

Organization	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization	'
	Organization
	Apollo Commercial Real Estate Finance, Inc. (together with its consolidated subsidiaries, is referred to throughout this report as the “Company,” “ARI,” “we,” “us” and “our”) is a real estate investment trust (“REIT”) that primarily originates, acquires, invests in and manages performing commercial first mortgage loans, subordinate financings, commercial mortgage-backed securities (“CMBS”) and other commercial real estate-related debt investments in the United States. These asset classes are referred to as the Company’s target assets.
	The Company, organized in Maryland on June 29, 2009, commenced operations on September 29, 2009 and is externally managed and advised by ACREFI Management, LLC (the “Manager”), an indirect subsidiary of Apollo Global Management, LLC.
	The Company elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended, commencing with the taxable year ended December 31, 2009. To maintain its tax status as a REIT, the Company is required to distribute at least 90% of its net income, excluding net capital gains, to stockholders and meet certain other asset, income, and ownership tests.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying consolidated financial statements include the Company’s accounts and those of its consolidated subsidiaries. All significant intercompany amounts have been eliminated. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The Company’s most significant estimates include the fair value of financial instruments and loan loss reserve. Actual results could differ from those estimates.
	The Company currently operates in one business segment.
	Restricted Cash
	Restricted cash represents cash held by the Company's counterparties as collateral against repurchase agreement borrowings. Restricted cash is not available for general corporate purposes but may be applied against amounts due to counterparties under repurchase agreement borrowings, or returned to the Company when collateral requirements are exceeded or at the maturity of the repurchase agreement.
	Classification of investments and valuations of financial instruments
	The Company’s investments consist primarily of commercial mortgage loans, subordinate loans, CMBS and other real estate related assets that are classified as either available-for-sale or held-to-maturity. The Company has also elected the fair value option for certain CMBS.
	Classification of Loans
	Loans held-for-investment are stated at the principal amount outstanding, net of deferred loan fees and costs in accordance with GAAP.
	Loan impairment
	The Company’s loans are typically collateralized by commercial real estate. As a result, the Company regularly evaluates the extent and impact of any credit migration associated with the performance and/or value of the underlying collateral property as well as the financial and operating capability of the borrower/sponsor on a loan by loan basis. Specifically, a property’s operating results and any cash reserves are analyzed and used to assess (i) whether cash from operations are sufficient to cover the debt service requirements currently and into the future, (ii) the ability of the borrower to refinance the loan, and/or (iii) the property’s liquidation value. The Company also evaluates the financial wherewithal of any loan guarantors as well as the borrower’s competency in managing and operating the properties. In addition, the Company considers the overall economic environment, real estate sector, and geographic sub-market in which the borrower operates. Such impairment analyses are completed and reviewed by asset management and finance personnel, who utilize various data sources, including (i) periodic financial data such as debt service coverage ratio, property occupancy, tenant profile, rental rates, operating expenses, the borrower’s exit plan, and capitalization and discount rates, (ii) site inspections, and (iii) current credit spreads and discussions with market participants.
	For loans classified as held-for-investment, the Company evaluates the loans for possible impairment on a quarterly basis. Impairment occurs when it is deemed probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan. Impairment is then measured based on the present value of expected future cash flows discounted at the loan’s effective rate or the fair value of the collateral, if the loan is collateral dependent. Upon measurement of impairment, the Company records an allowance to reduce the carrying value of the loan with a corresponding charge to net income. Significant judgments are required in determining impairment, including making assumptions regarding the value of the loan, the value of the underlying collateral and other provisions such as guarantees. The Company has determined that it is likely that it will receive contractual payments and a loan loss reserve was not necessary at December 31, 2013 and 2012.
	Fair Value Election
	Securities at estimated fair value consist of CMBS which are pledged under the Company’s master repurchase agreements with Wells Fargo Bank, N.A. (“Wells Fargo”) (the “Wells Facility”) and UBS AG, London Branch ("UBS") (the "UBS Facility"). In accordance with GAAP, the Company elected the fair value option for these securities at the date of purchase, which permits the Company to measure these securities at fair value with the change in estimated fair value included as a component of earnings.
	Securities available-for-sale
	The Company has designated investments in certain mortgage-backed securities as available-for-sale because the Company may dispose of them prior to maturity and does not hold them principally for the purpose of selling them in the near term. Securities available-for-sale are carried at estimated fair value with the net unrealized gains or losses reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity. Unrealized losses on securities that reflect a decline in value that is judged by management to be other than temporary, if any, are charged to earnings.
	When the estimated fair value of a security is less than amortized cost, the Company considers whether there is an other-than-temporary impairment (“OTTI”) in the value of the security. An impairment is deemed an OTTI if (i) the Company intends to sell the security, (ii) it is more likely than not that the Company will be required to sell the security before recovering its cost basis, or (iii) the Company does not expect to recover the entire amortized cost basis of the security even if the Company does not intend to sell the security or believes it is more likely than not that the Company will be required to sell the security before recovering its cost basis. If the impairment is deemed to be an OTTI, the resulting accounting treatment depends on the factors causing the OTTI. If the OTTI has resulted from (i) the Company’s intention to sell the security, or (ii) its judgment that it is more likely than not that it will be required to sell the security before recovering its cost basis, an impairment loss is recognized in current earnings equal to the difference between its amortized cost basis and fair value. Whereas, if the OTTI has resulted from the Company’s conclusion that it will not recover its cost basis even if the Company does not intend to sell the security or believes it is more likely than not that the Company will be required to sell the security before recovering its cost basis, the credit loss portion of the impairment is recorded in current earnings and the portion of the loss related to other factors, such as changes in interest rates, continues to be recognized in accumulated other comprehensive income. Determining whether there is an OTTI may require management to exercise significant judgment and make significant assumptions, including, but not limited to, estimated cash flows, estimated prepayments, loss assumptions, and assumptions regarding changes in interest rates. As a result, actual impairment losses could differ from reported amounts. Such judgments and assumptions are based upon a number of factors, including (i) credit of the issuer or the borrower, (ii) credit rating of the security, (iii) key terms of the security, (iv) performance of the loan or underlying loans, including debt service coverage and loan-to-value ratios, (v) the value of the collateral for the loan or underlying loans, (vi) the effect of local, industry, and broader economic factors, and (vii) the historical and anticipated trends in defaults and loss severities for similar securities.
	Interest income recognition
	Interest income on commercial mortgage loans is accrued based on the actual coupon rate and the outstanding principal balance adjusted for accretion of any purchase discounts, the amortization of any purchase premiums and the accretion of any deferred fees. Purchase premiums, purchase discounts and deferred fees are accreted into income using the effective yield method, adjusted for prepayments.
	Interest income on CMBS is accrued using the effective yield method, which includes the accretion of purchase discounts and the amortization of purchase premiums and the stated coupon interest payments.
	Deferred Financing Costs
	Costs incurred in connection with collateralized financings are capitalized and amortized over the respective financing terms and are reflected on the accompanying consolidated statement of operations as a component of interest expense. At December 31, 2013 and 2012, respectively, the Company had approximately $628 and $678 of capitalized financing costs, net of amortization included in other assets on the consolidated balance sheets.
	Earnings per share
	GAAP requires use of the two-class method of computing earnings per share for all periods presented for each class of common stock and participating security as if all earnings for the period had been distributed. Under the two-class method, during periods of net income, the net income is first reduced for dividends declared on all classes of securities to arrive at undistributed earnings. During periods of net losses, the net loss is reduced for dividends declared on participating securities only if the security has the right to participate in the earnings of the entity and an objectively determinable contractual obligation to share in net losses of the entity.
	The remaining earnings are allocated to common stockholders and participating securities, to the extent that each security shares in earnings, as if all of the earnings for the period had been distributed. Each total is then divided by the applicable number of shares to arrive at basic earnings per share. For the diluted earnings, the denominator includes all outstanding common shares and all potential common shares assumed issued if they are dilutive. The numerator is adjusted for any changes in income or loss that would result from the assumed conversion of these potential common shares.
	Hedging instruments and hedging activities
	Consistent with maintaining its status as a REIT, in the normal course of business, the Company may use a variety of derivative financial instruments to manage, or hedge, interest rate risk. Derivatives will be used for hedging purposes rather than speculation. The Company will determine their fair value and obtain quotations from a third party to facilitate the process in determining these fair values. If the Company’s hedging activities do not achieve the desired results, reported earnings may be adversely affected.
	GAAP requires an entity to recognize all derivatives as either assets or liabilities in the balance sheets and to measure those instruments at fair value. To the extent the instrument qualifies for hedge accounting, the fair value adjustments will be recorded as a component of other comprehensive income in stockholders’ equity until the hedged item is recognized in earnings. Should the Company choose not to pursue hedge accounting, the fair value adjustments will be recorded in earnings immediately.
	In order to mitigate interest rate risk resulting from the Company’s floating-rate borrowings under the Wells Facility, the Company entered into interest rate swaps and caps with an aggregate notional equal to the borrowings outstanding under the Wells Facility during 2010. The interest rate swaps were used to hedge the floating-rate borrowings through the expected maturity of the underlying collateral and the interest rate caps were used to hedge the floating-rate borrowings related to the potential extension of the underlying collateral. All of the Company's interest rate swaps and caps have matured as of December 31, 2013.
	The Company did not elect hedge accounting for these derivative instruments and recorded the change in estimated fair value related to these interest rate agreements in earnings. The Company also elected to record the change in estimated fair value related to the CMBS securing the Wells Facility in earnings. This election allowed the Company to align the change in the estimated fair value of the Wells Facility collateral and related interest rate hedges without having to apply complex hedge accounting provisions.
	Repurchase agreements
	Securities sold under repurchase agreements will be treated as collateralized financing transactions, unless they meet sales treatment. Securities financed through a repurchase agreement will remain on the Company’s consolidated balance sheet as an asset and cash received from the purchaser will be recorded on the Company’s consolidated balance sheet as a liability. Interest paid in accordance with repurchase agreements will be recorded in interest expense.
	Share-based payments
	The Company accounts for share-based compensation to its independent directors and to the Manager and to employees of the Manager and its affiliates using the fair value based methodology prescribed by GAAP. Compensation cost related to restricted common stock issued to the Company’s independent directors is measured at its estimated fair value at the grant date, and amortized into expense over the vesting period on a straight-line basis. Compensation cost related to restricted common stock issued to the Manager and to employees of the Manager and its affiliates will initially be measured at estimated fair value at the grant date, and remeasured on subsequent dates to the extent the awards are unvested. To amortize compensation expense for the restricted common stock granted to the Manager and to employees of the Manager and its affiliates, the Company uses the graded vesting attribution method.
	Income taxes
	The Company has elected to be taxed as a REIT under Sections 856-860 of the Internal Revenue Code of 1986, as amended. Under those sections, a REIT which distributes at least 90% of its REIT taxable income, excluding net capital gains and determined without regard to the dividends paid deduction, as a dividend to its shareholders each year and which meets certain other conditions will not be taxed on that portion of its taxable income which is distributed to its shareholders.
	The Company has elected to treat certain consolidated subsidiaries, and may in the future elect to treat newly formed subsidiaries, as taxable REIT subsidiaries pursuant to an amendment to the Internal Revenue Code that became effective January 1, 2001. Taxable REIT subsidiaries may participate in non-real estate related activities and/or perform non-customary services for tenants and are subject to Federal and State income tax at regular corporate tax rates.
	The Company’s major tax jurisdictions are Federal, New York State and New York City and the statute of limitations is open for all jurisdictions for the years 2010 through 2013. The Company does not have any unrecognized tax benefits and does not expect a change in its position for unrecognized tax benefits in the next 12 months. The Company has a net operating loss carryforward of approximately $1,400 which expires in the year 2029.
	Recent accounting pronouncements
	In December 2011, the Financial Accounting Standards Board (the “FASB”) issued guidance to enhance disclosures about financial instruments and derivative instruments that are either (1) offset or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset. Under the guidance, an entity is required to disclose quantitative information relating to recognized assets and liabilities that are offset or subject to an enforceable master netting arrangement or similar agreement, including the gross amounts of those recognized assets and liabilities, the amounts offset to determine the net amount presented in the statement of financial position, and the net amount presented in the statement of financial position. With respect to amounts subject to an enforceable master netting arrangement or similar agreement which are not offset, disclosure is required of the amounts related to recognized financial instruments and other derivative instruments, the amount related to financial collateral (including cash collateral), and the overall net amount after considering amounts that have not been offset. The guidance is effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods and retrospective application is required. As the amendments are limited to disclosure only, the adoption of this guidance did not have a material impact on the consolidated financial statements of the Company’s consolidated financial statements.
	In January 2013, the FASB issued guidance to clarify the scope of disclosures about offsetting assets and liabilities. The amendments clarify that the scope of guidance issued in December 2011 to enhance disclosures around financial instruments and derivative instruments that are either (1) offset, or (2) subject to a master netting arrangement or similar agreement, irrespective of whether they are offset, applies to derivatives, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset or subject to an enforceable master netting arrangement or similar agreement. The amendments are effective for interim and annual periods beginning on or after January 1, 2013. As the amendments are limited to disclosure only, the adoption of this guidance did not have a material impact on the consolidated financial statements of the Company’s consolidated financial statements.
	In February 2013, the FASB issued an update which includes amendments that require an entity to report the effect of significant reclassifications out of accumulated other comprehensive income ("OCI") on the respective line items in net income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other required disclosures that provide additional detail about those amounts. The new requirement presents information on amounts reclassified out of accumulated OCI and their corresponding effect on net income in one place or in some cases, provides for cross-references to related footnote disclosures. For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. During 2013, 2012 and 2011, the Company had no amounts reclassified into or out of OCI.
	In June 2013, the FASB issued guidance to change the assessment of whether an entity is an investment company by developing a new two-tiered approach that requires an entity to possess certain fundamental characteristics while allowing judgment in assessing certain typical characteristics. The fundamental characteristics that an investment company is required to have include the following: (1) it obtains funds from one or more investors and provides the investor(s) with investment management services; (2) it commits to its investor(s) that its business purpose and only substantive activities are investing the funds solely for returns from capital appreciation, investment income or both; and (3) it does not obtain returns or benefits from an investee or its affiliates that are not normally attributable to ownership interests. The typical characteristics of an investment company that an entity should consider before concluding whether it is an investment company include the following: (1) it has more than one investment; (2) it has more than one investor; (3) it has investors that are not related parties of the parent or the investment manager; (4) it has ownership interests in the form of equity or partnership interests; and (5) it manages substantially all of its investments on a fair value basis. The new approach requires an entity to assess all of the characteristics of an investment company and consider its purpose and design to determine whether it is an investment company. The guidance includes disclosure requirements about an entity’s status as an investment company and financial support provided or contractually required to be provided by an investment company to its investees. The guidance is effective for interim and annual reporting periods in fiscal years beginning after December 15, 2013. Earlier application is prohibited. The ASU prohibits REITs from qualifying for investment company accounting under ASC 946, as such, we have determined that we will not meet the definition of an investment company under this ASU when adopted.

Fair_Value_Disclosure

Fair Value Disclosure	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Disclosure	'
	Fair Value Disclosure
	GAAP establishes a hierarchy of valuation techniques based on observable inputs utilized in measuring financial instruments at fair values. Market based or observable inputs are the preferred source of values, followed by valuation models using management assumptions in the absence of market inputs. The three levels of the hierarchy are described below:
	Level I — Quoted prices in active markets for identical assets or liabilities.
	Level II — Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants would use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk and others.
	Level III — Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used.
	While the Company anticipates that its valuation methods will be appropriate and consistent with other market participants, the use of different methodologies, or assumptions, to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. The Company will use inputs that are current as of the measurement date, which may include periods of market dislocation, during which price transparency may be reduced.
	The estimated fair value of the CMBS portfolio is determined by reference to market prices provided by certain dealers who make a market in these financial instruments. Broker quotes are only indicative of fair value and may not necessarily represent what the Company would receive in an actual trade for the applicable instrument. Management performs additional analysis on prices received based on broker quotes to validate the prices and adjustments are made as deemed necessary by management to capture current market information. The estimated fair values of Company’s securities are based on observable market parameters and are classified as Level II in the fair value hierarchy.
	The estimated fair values of the Company’s derivative instruments are determined using a discounted cash flow analysis on the expected cash flows of each derivative. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The fair values of interest rate caps are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected cash flows are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. The Company’s derivative instruments are classified as Level II in the fair value hierarchy.
	The following table summarizes the levels in the fair value hierarchy into which the Company’s financial instruments were categorized as of December 31, 2013:
		Fair Value as of December 31, 2013
		Level I		Level II			Level III		Total
	CMBS (Available-for-Sale)	$	—	$	33,362		$	—	$	33,362
	CMBS (Fair Value Option)	—		158,086			—		158,086
	Total	$	—	$	191,448		$	—	$	191,448
	The following table summarizes the levels in the fair value hierarchy into which the Company’s financial instruments were categorized as of December 31, 2012:
		Fair Value as of December 31, 2012
		Level I		Level II			Level III		Total
	CMBS (Available-for-Sale)	$	—	$	67,079		$	—	$	67,079
	CMBS (Fair Value Option)	—		138,248			—		138,248
	CMBS – Hilton (Fair Value Option)	—		73,561			—		73,561
	Interest rate swaps	—		(156		)	—		(156		)
	Interest rate caps	—		1			—		1
	Total	$	—	$	278,733		$	—	$	278,733

Debt_Securities

Debt Securities	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Debt Securities	'
	Debt Securities
	At December 31, 2013, all of the Company's CMBS were pledged to secure borrowings under the Wells Facility and the UBS Facility. See Note 8 – Borrowings for a description of these facilities.
	During 2013, the Company purchased CMBS with an aggregate face amount of $133,783 and an aggregate purchase price of $133,899. The CMBS were financed under the UBS Facility and the Company elected the Fair Value Option for these securities.
	The amortized cost and estimated fair value of the Company’s debt securities at December 31, 2013 are summarized as follows:
	Security Description	Face			Amortized		Gross		Gross			Estimated
		Amount			Cost		Unrealized		Unrealized			Fair Value
							Gain		Loss
	CMBS (Available-for-Sale)	$	33,066		$	34,232	$	—	$	(870	)	$	33,362
	CMBS (Fair Value Option)	155,577			155,946		2,313		(173		)	158,086
	Total	$	188,643		$	190,178	$	2,313	$	(1,043	)	$	191,448
	During June 2012, the Company purchased CMBS with a face amount of $74,854 for which the obligors are certain special purpose entities formed in 2010 to hold substantially all of the assets of Hilton Worldwide, Inc. (the “Hilton CMBS”). The Hilton CMBS was purchased for $70,655 and was financed with $49,459 of borrowings under the Company’s master repurchase agreement with Wells Fargo Bank, N.A. (the “Wells Facility”), which was amended to provide up to $100,000 of additional financing for the Hilton CMBS. See Note 8 – Borrowings for a description of the Wells Facility. The Company has elected the fair value option for the Hilton CMBS. The Hilton CMBS and related borrowings were fully repaid in November 2013.
	During March 2012, the Company sold CMBS with an amortized cost of $137,423 resulting in a net realized gain of $262, which was comprised of realized gains of $345 and realized losses of $83. The sale generated proceeds of $14,621 after the repayment of $123,064 of borrowings under the Wells Facility.
	The amortized cost and estimated fair value of the Company’s debt securities at December 31, 2012 are summarized as follows:
	Security Description	Face			Amortized		Gross		Gross			Estimated
		Amount			Cost		Unrealized		Unrealized			Fair Value
							Gain		Loss
	CMBS (Available-for-Sale)	$	65,410		$	67,109	$	249	$	(279	)	$	67,079
	CMBS (Fair Value Option)	134,694			136,354		2,061		(167		)	138,248
	CMBS – Hilton (Fair Value Option)	73,239			70,250		3,311		—			73,561
	Total	$	273,343		$	273,713	$	5,621	$	(446	)	$	278,888
	The temporary impairment of the available-for-sale securities results from the fair value of the securities falling below the amortized cost basis. These unrealized losses are primarily the result of market factors other than credit impairment and the Company believes the carrying value of the securities are fully recoverable over their expected holding period. Management does not intend to sell or expect to be forced to sell the securities prior to the Company recovering the amortized cost. Additionally, all unrealized losses on securities available-for-sale at December 31, 2013 have existed for less than twelve months. As such, management does not believe any of the securities are other than temporarily impaired.
	The overall statistics for the Company’s CMBS investments (excluding the Hilton CMBS) calculated on a weighted average basis assuming no early prepayments or defaults as of December 31, 2013 and 2012 are as follows:
		December 31,		December 31,
		2013		2012
	Credit Ratings *	AAA-CCC		AAA
	Coupon	5.8	%	5.6	%
	Yield	5.3	%	4.1	%
	Weighted Average Life	3.1 years		1.8 years
	*	Ratings per Fitch, Moody’s or S&P
	The percentage vintage, property type, and location of the collateral securing the Company’s CMBS investments (excluding the Hilton CMBS) calculated on a weighted average basis as of December 31, 2013 and 2012 are as follows:
	Vintage	December 31,		December 31,
		2013		2012
	2006	3	%	1	%
	2007	97		99
	Total	100	%	100	%
	Property Type	December 31,		December 31,
		2013		2012
	Office	35.5	%	40.5	%
	Retail	24.1		23.2
	Hotel	13.7		10.5
	Multifamily	12.7		12.9
	Other *	14		12.9
	Total	100	%	100	%
	*	No other individual category comprises more than 10% of the total.
	Location	December 31,		December 31,
		2013		2012
	South Atlantic	23.4	%	21.8	%
	Middle Atlantic	22.8		21.4
	Pacific	17.6		23.8
	Other *	36.2		33
	Total	100	%	100	%
	*	No other individual category comprises more than 10% of the total.

Commercial_Mortgage_Loans

Commercial Mortgage Loans	12 Months Ended
	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]	'
Commercial Mortgage Loans	'
	Property Type	Location		Interest			Final		Periodic		Face			Carrying
				Rate			Extended Maturity		Payment Terms		amount of			amount of
							Date				loans			loans
	Commercial mortgage loans
	Hotel	New York		8.25	%		Feb - 15		30 year		$	31,317		$	31,317
	Office Condo (Headquarters)	New York		8	%		Feb - 15		30 year		27,169			27,169
	Hotel	Maryland		9	%		Apr -15		25 year		24,947			24,785
	Condo Conversion	New York		9	%		Jan -17		Interest only		45,000			44,867
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only		33,167			32,961
	Total commercial mortgage loans										161,600			161,099
	Subordinate loans (1)
	Office	Michigan		13	%		Jun - 20		25 year		8,866			8,866
	Ski Resort	California		14	%		May - 17		Interest only		40,000			39,781
	Hotel	New York		12	%		Feb - 15		Interest only		15,000			15,207
	Mixed Use	North Carolina		11.1	%		Aug - 22		Interest only		6,525			6,525
	Office Complex	Missouri		11.75	%		Oct - 22		30 year		9,849			9,849
	Hotel Portfolio	Various US cities		11.07	%		Nov - 16		30 year		48,431			48,397
	Condo Conversion	New York		9	%		Jan -17		Interest only		35,000			34,734
	Condo Construction	New York		13.25	%		July - 18		Interest only		66,800			66,340
	Multifamily Conversion	New York		10.48	%		Dec - 15		Interest only		18,000			17,906
	Hotel Portfolio	Minnesota		11	%		Feb - 18		30 year		24,771			24,771
	Warehouse Portfolio	Various US cities		11.5	%		May - 23		Interest only		32,000			32,000
	Multifamily Conversion	New York		12.25	%		Sept - 14		Interest only		44,000			43,859
	Office Condo	New York		11.25	%		Jul - 22		Interest only		14,000			13,565
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only		295			2
	Mixed Use	Pennsylvania		9.42	%		Aug - 18		Interest only		22,500			22,342
	Healthcare Portfolio	Various US cities		11.15	%		Jun - 14		Interest only		47,000			47,000
	Mixed Use	Florida		10.42	%		Oct - 18		Interest only		50,000			49,535
	Mixed Use	Various US cities		14	%		Dec - 18		Interest only		17,000			16,805
	Total subordinate loans										500,037			497,484
	Total										$	661,637		$	658,583	(2)
	-1	Subject to prior liens.
	-2	The aggregate cost for federal income tax purposes is $658,583.
	The following table summarizes the changes in the carrying amounts of mortgage loans during 2013 and 2012.
	Reconciliation of Carrying Amount of Loans
		2013				2012
	Balance at beginning of year	$	389,167			$	258,092
	New mortgage loans	401,912				159,465
	Collections of principal	(137,168		)		(31,408		)
	Discount accretion	4,672				3,018
	Balance at the close of year	$	658,583			$	389,167
Commercial mortgage loans [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Commercial Mortgage Loans	'
	Commercial Mortgage Loans
	The Company’s commercial mortgage loan portfolio was comprised of the following at December 31, 2013:
	Description	Date of		Maturity		Original				Current			Carrying			Coupon		Property Size
		Investment		Date		Face				Face			Value
						Amount				Amount
	Hotel - NY, NY	10-Jan		15-Feb		$	32,000			$	31,317		$	31,317		Fixed		151 rooms
	Office Condo (Headquarters) - NY, NY	10-Feb		15-Feb		28,000				27,169			27,169			Fixed		73,419 sq. ft.
	Hotel - Silver Spring, MD	10-Mar		15-Apr		26,000				24,947			24,785			Fixed		263 rooms
	Condo Conversion – NY, NY (1)	12-Dec		15-Jan		45,000				45,000			44,867			Floating		119,000 sq. ft.
	Condo Conversion – NY, NY (2)	13-Aug		15-Sep		33,000				33,167			32,961			Floating		40,000 sq. ft.
	Total/Weighted Average					$	164,000			$	161,600		$	161,099		8.82	%
	-1	This loan includes two one-year extension options subject to certain conditions and the payment of a fee for each extension.
	-2	This loan includes a one-year extension option subject to certain conditions and the payment of a fee.
	At December 31, 2013, the New York hotel loan, the New York office condo and the Maryland hotel were all pledged to secure borrowings under the Company’s $100,000 master repurchase facility entered into with JPMorgan Chase Bank, N.A. (the “JPMorgan Facility”). See Note 8 – Borrowings for a description of this facility.
	During March 2013, the Company consented to the transfer of the controlling ownership of the borrower under the Silver Spring, Maryland loan. In conjunction with its consent, the Company received a $280 fee, which will be recognized over the remaining life of the loan.
	During September 2013, two senior sub-participation interests in a first mortgage loan which was secured by over 20 acres of land in South Boston, Massachusetts were repaid at par. The senior sub-participation interests were purchased at 78% of par (including a 3% brokerage fee). Upon the repayment, the Company realized an internal rate of return ("IRR") of 25% on its investment. For a description of how the IRR is calculated, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Conditions and Results of Operations—Investments”.
	The Company’s commercial mortgage loan portfolio was comprised of the following as of December 31, 2012:
	Description	Date of		Maturity		Original				Current			Carrying			Coupon		Property Size
		Investment		Date		Face				Face			Value
						Amount				Amount
	Hotel - NY, NY	10-Jan		15-Feb		$	32,000			$	31,571		$	31,571		Fixed		151 rooms
	Office Condo (Headquarters) - NY, NY	10-Feb		15-Feb		28,000				27,419			27,419			Fixed		73,419 sq. ft.
	Hotel - Silver Spring, MD	10-Mar		15-Apr		26,000				25,273			25,273			Fixed		263 rooms
	Mixed Use – South Boston, MA (1)	12-Apr		13-Dec		23,844				17,287			14,105			Floating		20 acres
	Condo Conversion – NY, NY (2)	12-Dec		15-Jan		45,000				45,000			44,553			Floating		119,000 sq. ft.
	Total/Weighted Average					$	154,844			$	146,550		$	142,921		7.82	%
	During April 2012, a $24,000 two-year fixed rate first mortgage loan on a 155-room boutique hotel in midtown Manhattan was repaid. The loan had an interest rate of 8.00%. The Company repaid $15,444 of borrowings under the JPMorgan Facility in conjunction with this repayment.
	The Company evaluates its loans for possible impairment on a quarterly basis. The Company regularly evaluates the extent and impact of any credit deterioration associated with the performance and/or value of the underlying collateral property as well as the financial and operating capability of the borrower/sponsor on a loan by loan basis. Specifically, a property’s operating results and any cash reserves are analyzed and used to assess (i) whether cash from operations are sufficient to cover the debt service requirements currently and into the future, (ii) the ability of the borrower to refinance the loan, and/or (iii) the property’s liquidation value. The Company also evaluates the financial wherewithal of any loan guarantors as well as the borrower’s competency in managing and operating the properties. In addition, the Company considers the overall economic environment, real estate sector, and geographic sub-market in which the borrower operates. Such loan loss analyses are completed and reviewed by asset management and finance personnel, who utilize various data sources, including (i) periodic financial data such as debt service coverage ratio, property occupancy, tenant profile, rental rates, operating expenses, the borrower’s exit plan, and capitalization and discount rates, (ii) site inspections, and (iii) current credit spreads and discussions with market participants. An allowance for loan loss is established when it is deemed probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan. The Company has determined that an allowance for loan losses was not necessary at December 31, 2013 and 2012.

Subordinate_Loans

Subordinate Loans	12 Months Ended
	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]	'
Subordinate Loans	'
	Property Type	Location		Interest			Final		Periodic		Face			Carrying
				Rate			Extended Maturity		Payment Terms		amount of			amount of
							Date				loans			loans
	Commercial mortgage loans
	Hotel	New York		8.25	%		Feb - 15		30 year		$	31,317		$	31,317
	Office Condo (Headquarters)	New York		8	%		Feb - 15		30 year		27,169			27,169
	Hotel	Maryland		9	%		Apr -15		25 year		24,947			24,785
	Condo Conversion	New York		9	%		Jan -17		Interest only		45,000			44,867
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only		33,167			32,961
	Total commercial mortgage loans										161,600			161,099
	Subordinate loans (1)
	Office	Michigan		13	%		Jun - 20		25 year		8,866			8,866
	Ski Resort	California		14	%		May - 17		Interest only		40,000			39,781
	Hotel	New York		12	%		Feb - 15		Interest only		15,000			15,207
	Mixed Use	North Carolina		11.1	%		Aug - 22		Interest only		6,525			6,525
	Office Complex	Missouri		11.75	%		Oct - 22		30 year		9,849			9,849
	Hotel Portfolio	Various US cities		11.07	%		Nov - 16		30 year		48,431			48,397
	Condo Conversion	New York		9	%		Jan -17		Interest only		35,000			34,734
	Condo Construction	New York		13.25	%		July - 18		Interest only		66,800			66,340
	Multifamily Conversion	New York		10.48	%		Dec - 15		Interest only		18,000			17,906
	Hotel Portfolio	Minnesota		11	%		Feb - 18		30 year		24,771			24,771
	Warehouse Portfolio	Various US cities		11.5	%		May - 23		Interest only		32,000			32,000
	Multifamily Conversion	New York		12.25	%		Sept - 14		Interest only		44,000			43,859
	Office Condo	New York		11.25	%		Jul - 22		Interest only		14,000			13,565
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only		295			2
	Mixed Use	Pennsylvania		9.42	%		Aug - 18		Interest only		22,500			22,342
	Healthcare Portfolio	Various US cities		11.15	%		Jun - 14		Interest only		47,000			47,000
	Mixed Use	Florida		10.42	%		Oct - 18		Interest only		50,000			49,535
	Mixed Use	Various US cities		14	%		Dec - 18		Interest only		17,000			16,805
	Total subordinate loans										500,037			497,484
	Total										$	661,637		$	658,583	(2)
	-1	Subject to prior liens.
	-2	The aggregate cost for federal income tax purposes is $658,583.
	The following table summarizes the changes in the carrying amounts of mortgage loans during 2013 and 2012.
	Reconciliation of Carrying Amount of Loans
		2013				2012
	Balance at beginning of year	$	389,167			$	258,092
	New mortgage loans	401,912				159,465
	Collections of principal	(137,168		)		(31,408		)
	Discount accretion	4,672				3,018
	Balance at the close of year	$	658,583			$	389,167
Subordinate Loans [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Subordinate Loans	'
	Subordinate Loans
	The Company’s subordinate loan portfolio was comprised of the following as of December 31, 2013:
	Description	Date of		Maturity		Original				Current			Carrying			Coupon
		Investment		Date		Face				Face			Value
						Amount				Amount
	Office - Michigan	10-May		20-Jun		$	9,000			$	8,866		$	8,866		Fixed
	Ski Resort - California	11-Apr		17-May		40,000				40,000			39,781			Fixed
	Hotel– New York (1)	12-Jan		14-Feb		15,000				15,000			15,207			Fixed
	Mixed Use – North Carolina	12-Jul		22-Jul		6,525				6,525			6,525			Fixed
	Office Complex - Missouri	12-Sep		22-Oct		10,000				9,849			9,849			Fixed
	Hotel Portfolio – Various (1)	12-Nov		15-Nov		50,000				48,431			48,397			Floating
	Condo Conversion – NY, NY (2)	12-Dec		15-Jan		35,000				35,000			34,734			Floating
	Condo Construction – NY, NY (1)	13-Jan		17-Jul		60,000				66,800			66,340			Fixed
	Multifamily Conversion – NY, NY (1)	13-Jan		14-Dec		18,000				18,000			17,906			Floating
	Hotel Portfolio – Rochester, MN	13-Jan		18-Feb		25,000				24,771			24,771			Fixed
	Warehouse Portfolio - Various	13-May		23-May		32,000				32,000			32,000			Fixed
	Multifamily Conversion – NY, NY (3)	13-May		14-Jun		44,000				44,000			43,859			Floating
	Office Condo - NY, NY	13-Jul		22-Jul		14,000				14,000			13,565			Fixed
	Condo Conversion – NY, NY (4)	13-Aug		15-Sep		294				295			2			Floating
	Mixed Use - Pittsburgh, PA (1)	13-Aug		16-Aug		22,500				22,500			22,342			Floating
	Healthcare Portfolio - Various	13-Oct		14-Jun		47,000				47,000			47,000			Floating
	Mixed Use - Florida (2)	13-Nov		18-Oct		50,000				50,000			49,535			Floating
	Mixed Use - Various (2)	13-Dec		18-Dec		17,000				17,000			16,805			Fixed
	Total/Weighted Average					$	495,319			$	500,037		$	497,484		11.6	%
	-1	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-2	Includes two one-year extension options subject to certain conditions and the payment of a fee for each extension.
	-3	Includes a three-month extension option subject to certain conditions and the payment of an extension fee.
	-4	Includes a one-year extension option subject to certain conditions and the payment of an extension fee. As of December 31, 2013, the Company had $29,106 of unfunded loan commitments related to this loan.
	In February 2013, the Company received principal repayments on two mezzanine loans totaling $50,000 secured by a portfolio of retail shopping centers located throughout the United States. In connection with the repayment, the Company received a yield maintenance payment totaling $2,500. With the yield maintenance payment, the Company realized a 15% IRR on its mezzanine loan investment. For a description of how the IRR is calculated, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Results of Operations – Investments.”
	In June 2013, the Company received the repayment of a $15,000 mezzanine loan secured by a hotel in New York City. In connection with the repayment, the Company received a yield maintenance payment totaling $1,233. With the yield maintenance payment, the Company realized a 19% IRR on its mezzanine loan investment. For a description of how the IRR is calculated, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Results of Operations – Investments.”
	During October 2013, the Company received a full principal repayment from a $25,000 mezzanine loan secured by a portfolio of hotels in New York City. The Company realized a 12% IRR on this investment.
	During 2013, the Company received a full principal repayment from a $25,000 subordinate financing secured by a retail center in Woodbridge, Virginia. The Company realized a 15% IRR on this investment.
	The Company’s subordinate loan portfolio was comprised of the following as of December 31, 2012:
	Description	Date of		Maturity		Original				Current			Carrying			Coupon
		Investment		Date		Face				Face			Value
						Amount				Amount
	Senior Mezz - Retail - Various	9-Dec		19-Dec		$	30,000			$	30,000		$	30,000		Fixed
	Junior Mezz - Retail - Various	9-Dec		19-Dec		20,000				20,000			20,000			Fixed
	Office - Michigan	10-May		20-Jun		9,000				8,912			8,912			Fixed
	Ski Resort - California	11-Apr		17-May		40,000				40,000			39,831			Fixed
	Hotel Portfolio – New York (1)	11-Aug		13-Jul		25,000				25,000			25,000			Floating
	Retail Center – Virginia (2)	11-Oct		14-Oct		25,000				26,243			26,243			Fixed
	Hotel– New York (3)	12-Jan		14-Feb		15,000				15,000			15,013			Fixed
	Hotel– New York (4)	12-Mar		14-Mar		15,000				15,000			15,000			Floating
	Mixed Use – North Carolina	12-Jul		22-Jul		6,525				6,525			6,525			Fixed
	Office Complex - Missouri	12-Sep		22-Oct		10,000				9,979			9,979			Fixed
	Hotel Portfolio - Various (5)	12-Nov		15-Nov		50,000				49,950			49,743			Floating
	Condo Conversion – NY, NY (6)	12-Dec		15-Jan		350				350			—			Floating
	Total/Weighted Average					$	245,875			$	246,959		$	246,246		12.46	%
	-1	Includes three one-year extension options subject to certain conditions and the payment of a fee for the fourth and fifth year extensions.
	-2	Includes two one-year extension options subject to certain conditions.
	-3	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-4	Includes two one-year extension options subject to certain conditions and the payment of a fee for the second extension.
	-5	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-6	Includes two one-year extension options subject to certain conditions and the payment of a fee for each extension. As of December 31, 2012, the Company had $34,650 of unfunded loan commitments related to this loan.
	During June 2012, the Company modified the $40,000 subordinate loan secured by a ski resort in California. The modification was completed in connection with a modification of both the senior and junior loans in order to provide financial covenant relief to the borrower and included the addition of a 0.5% amendment fee and a 1.0% exit fee upon repayment of the loan. In addition, the interest rate on the mezzanine loan was increased by 0.75% to 14% until the earlier of (i) the loan being back in compliance with its original covenants; or (ii) April 2014. As of December 31, 2012, the mezzanine loan was current on its interest payments to the Company. All of the additional remuneration will be recognized over the remaining life of the loan.
	The Company evaluates its loans for possible impairment on a quarterly basis. See Note 5 – Commercial Mortgage Loans for a summary of the metrics reviewed. The Company has determined that an allowance for loan loss was not necessary at December 31, 2013 and December 31, 2012.

Repurchase_Agreement

Repurchase Agreement	12 Months Ended
	Dec. 31, 2013
Investment Repurchase Agreement Disclosure [Abstract]	'
Repurchase Agreement	'
	Repurchase Agreement
	During 2011, the Company funded a $47,439 investment structured in the form of a repurchase facility secured by a Class A-2 CDO bond. The $47,439 of borrowings provided under the facility financed the purchase of a CDO bond with an aggregate face amount of $68,726, representing an advance rate of 69% on the CDO bond’s face amount. The Class A-2 CDO bond, originally rated AAA/Aaa, is currently rated A-/Baa1. The CDO is comprised of 58 senior and subordinate commercial real estate debt positions and commercial real estate securities with the majority of the debt and securities underlying the CDO being first mortgages.
	The repurchase facility bears interest at 13.0% (10.0% current pay with a 3.0% accrual) on amounts outstanding and has an initial term of 18 months with three six-month extensions options available to the borrower. Any principal repayments that occur prior to the 21st month are subject to a make-whole provision at the full 13.0% interest rate.
	In January 2013, the repurchase agreement was repaid in full. Upon the repayment, the Company realized a 17% IRR on its investment. For a description of how the IRR is calculated, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Results of Operations - Investments”.

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Borrowings	'
	Borrowings
	At December 31, 2013 and 2012, the Company had borrowings outstanding under the JPMorgan Facility, the Wells Facility and the UBS Facility.
	At December 31, 2013 and 2012, the Company’s borrowings had the following weighted average maturities and interest rates:
		December 31, 2013							31-Dec-12
		Debt		Weighted		Weighted			Debt			Weighted		Weighted
		Balance		Average		Average			Balance			Average		Average
				Remaining		Rate						Remaining		Rate
				Maturity								Maturity
	Wells Facility borrowings	$	47,751	0.2 years		1.2	%		$	225,155		1.1 years	*	1.8	%	**
	UBS Facility borrowings	133,899		4.7 years	*	2.8	%		—			0		—	%	Fixed
	JPMorgan Facility borrowings	20,383		1.1 years	*	2.7	%		3			5 days		2.7	%	L+250
	Total borrowings	$	202,033	3.3 years		2.4	%		$	225,158		1.1 years		1.8	%
	*	Assumes extension options are exercised.
	**	Borrowings outstanding under the Wells Facility bear interest at a LIBOR plus 105, 125 basis points, 150 basis points or 235 basis points depending on the collateral pledged.
	At December 31, 2013, the Company’s borrowings had the following remaining maturities:
		Less than		1 to 3				3 to 5			More than				Total
		1 year		years				years			5 years
	Wells Facility borrowings	$	47,751	$	—			$	—		$	—			$	47,751
	UBS Facility borrowings *	—		5,004				128,895			—				133,899
	JPMorgan Facility borrowings *	204		20,179				—			—				20,383
	Total	$	47,955	$	25,183			$	128,895		$	—			$	202,033
	*	Assumes extension options are exercised.
	The table below summarizes the outstanding balances, as well as the maximum and average balances as of December 31, 2013 and 2012.
				2013											2012
		Balance at		Maximum Month-End				Average Month-End			Balance at				Maximum Month-End		Average Month-End
		December 31,		Balance				Balance			December 31,				Balance		Balance
		2013									2012
	Wells Facility borrowings	$	47,751	$	225,156			$	168,747		$	225,155			$	469,147	$	283,100
	UBS Facility borrowings	133,899		133,899				31,728			—				—		—
	JPMorgan Facility borrowings	20,383		20,383				3,138			$	3			$	68,720	$	37,461
	Total	$	202,033								$	225,158
	Repurchase Agreements
	UBS Facility
	During September 2013, the Company through an indirect wholly-owned subsidiary entered into the UBS Facility with UBS pursuant to which the Company may borrow up to $133,333 in order to finance the acquisition of CMBS. The UBS Facility has a term of four years, with a one-year extension available at our option, subject to certain restrictions. Advances under the UBS Facility accrue interest at a per annum pricing rate equal to a spread of 1.55% per annum over the rate implied by the fixed rate bid under a fixed-for-floating interest rate swap for the receipt of payments indexed to six-month US Dollar LIBOR. The Company borrows 100% of the estimated fair value of the collateral pledged and posts margin equal to 22.5% of that borrowing amount in cash. The margin posted is classified as restricted cash on the Company's condensed consolidated balance sheets. Additionally, beginning on the 121st day following the closing date and depending on the utilization rate of the facility, a portion of the undrawn amount may be subject to non-use fees. The UBS Facility contains customary terms and conditions for repurchase facilities of this type and financial covenants to be met by the Company, including a minimum net asset value covenant (which shall not be less than an amount equal to $500,000 and a maximum total debt to consolidated tangible net worth covenant (3:1). The Company has agreed to provide a full guarantee of the obligations of its indirect wholly-owned subsidiary under the UBS Facility. During December 2013, the UBS Facility was amended to increase the maximum amount to $133,899.
	JPMorgan Facility
	In January 2010, the Company entered into the JPMorgan Facility, pursuant to which the Company may borrow up to $100,000 in order to finance the origination and acquisition of commercial first mortgage loans and AAA-rated CMBS. Per the terms of the original agreement, amounts borrowed under the JPMorgan Facility bore interest at a spread of 3.00% over one-month LIBOR with no floor. During April 2012, the Company amended the JPMorgan Facility to reduce the interest rate spread by 50 basis points to LIBOR+2.50%. Advance rates under the JPMorgan Facility typically range from 65%-90% on the estimated fair value of the pledged collateral depending on its loan-to-value. Margin calls will occur any time the outstanding loan balance exceeds the lender’s required advance in accordance with agreed upon advance rates by more than $250. In February 2013, the Company, through two of the Company’s subsidiaries, entered into the Amended Master Repurchase Agreement with JPMorgan. The Amended Master Repurchase Agreement extended the maturity date of the JPMorgan Facility to January 31, 2014, with an option to further extend the maturity date for 364 days, subject to the Company’s satisfaction of certain customary conditions. Pricing on the JPMorgan Facility will remain at LIBOR+2.5%. The Company has paid JPMorgan an upfront structuring fee of 0.50% of the facility amount for the first year of the term and, if the 364-day extension option is exercised, it will be required to pay an extension fee of 0.25% of the facility amount. The Company has agreed to provide a full guarantee of the obligations of its borrower subsidiaries under the Amended Master Repurchase Agreement. The JPMorgan Facility contains, among others, the following restrictive covenants: (1) negative covenants relating to restrictions on the Company’s operations that would cease to allow the Company to qualify as a REIT and (2) financial covenants to be met by the Company when the repurchase facility is being utilized, including a minimum consolidated tangible net worth covenant ($125,000), maximum total debt to consolidated tangible net worth covenant (3:1), a minimum liquidity covenant (the greater of 10% of total consolidated recourse indebtedness and $12,500) and a minimum net income covenant ($1 during any four consecutive fiscal quarters). Additionally, beginning on the 91st day following the closing date and depending on the utilization rate of the facility, a portion of the undrawn amount may be subject to non-use fees. Subsequent to September 30, 2010, the non-use fee was waived by the lender.
	Wells Facility
	During August 2010, the Company, through an indirect wholly-owned subsidiary, entered into the Wells Facility, pursuant to which the Company may borrow up to $250,000 in order to finance the acquisition of AAA-rated CMBS. The Wells Facility had a term of one year, with two one-year extensions available at the Company’s option, subject to certain restrictions, and upon the payment of an extension fee equal to 25 basis points on the then outstanding balance of the facility for each one-year extension. Advances under the Wells Facility accrue interest at a per annum pricing rate equal to the sum of (i) 30 day LIBOR and (ii) a pricing margin of 1.25%. The purchase price of the CMBS is determined on a per asset basis by applying an advance rate schedule agreed upon by the Company and Wells Fargo. Advance rates under the Wells Facility typically range from 85%-90% on the face amount of the underlying collateral depending on the weighted average life of the collateral pledged. Margin calls will occur any time the outstanding loan balance exceeds the lender’s required advance in accordance with agreed upon advance rates by more than $250. The Wells Facility contains, among others, the following restrictive covenants: (1) negative covenants intended to restrict the Company from failing to qualify as a REIT and (2) financial covenants to be met by the Company, including a minimum net asset value covenant (which shall not be less than an amount equal to (i) $100,000, (ii) 75% of the greatest net asset value during the prior calendar quarter and (iii) 65% of the greatest net asset value during the prior calendar year), a maximum total debt to consolidated tangible net worth covenant (8:1), a minimum liquidity covenant ($2,500) and a minimum EBITDA to interest expense covenant (1.5:1). The Company has agreed to provide a limited guarantee of up to 15%, or a maximum of $37,500, of the obligations of its indirect wholly-owned subsidiary under the Wells Facility.
	During December 2011, the Company, through an indirect wholly-owned subsidiary, entered into an amendment letter (the “Amendment Letter”) related to the Wells Facility to increase its maximum permitted borrowing under the facility from $250,000 to $506,000 in order to pay down its borrowings under the Term Asset-Backed Securities Loan Facility (the “TALF) program administered by the Federal Reserve Bank of New York and to finance the CMBS that had been financed under the TALF program. The Amendment Letter additionally adjusted the pricing margin for all assets financed under the Wells Facility occurring after December 22, 2011 from 1.25% to 1.50%, and added a minimum liquidity covenant, requiring the Company to maintain at all times an amount in Repo Liquidity (as generally defined under the Wells Facility to include all amounts held in the collection account established under the Wells Facility for the benefit of Wells Fargo, cash, cash equivalents, super-senior CMBS rated AAA by at least two rating agencies, and total amounts immediately and unconditionally available on an unrestricted basis under all outstanding capital commitments, subscription facilities and secured revolving credit or repurchase facilities) no less than the greater of 10% of the total consolidated recourse indebtedness of the Company and $12,500. Advances under the Wells Facility accrue interest at a per annum pricing rate equal to the sum of (i) 30 day LIBOR and (ii) the applicable pricing margin.
	The Wells Facility was further amended during the second quarter of 2012 to provide an additional $100,000 of financing capacity for the purchase of Hilton CMBS at a rate of LIBOR plus 235 basis points with respect to borrowings secured by the Hilton CMBS. The additional $100,000 of capacity to finance the Hilton CMBS matures in November 2014 and may be extended for an additional year upon the payment of an extension fee equal to 0.50% on the then aggregate outstanding repurchase price for all such assets. Additionally, during August 2012, the Company exercised the final one-year extension of the term of the Wells Facility and extended the maturity date to August 2013 (except with respect to $100,000 of capacity under the facility to finance the Hilton CMBS described below).
	In February 2013, the Company further amended the Wells Facility to reduce the interest rate as follows: (i) with respect to the outstanding borrowings used to provide financing for the AAA CMBS, the interest rate was reduced to LIBOR+1.05% from LIBOR+1.25%-1.50% (depending on the collateral pledged); and (ii) with respect to the outstanding borrowings used to provide financing for the Hilton CMBS, the interest rate was reduced to LIBOR+1.75% from LIBOR+2.35%. In addition, the maturity date of the Wells Facility with respect to the outstanding borrowings used to provide financing for the AAA CMBS was extended to March 2014. The Hilton CMBS and related borrowings were repaid in November 2013.
	The Company was in compliance with the financial covenants under its repurchase agreements at December 31, 2013 and December 31, 2012.

Derivative_Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	Derivative instruments
	The Company used interest rate swaps and caps to manage exposure to variable cash flows on portions of its borrowings under repurchase agreements. The Company’s repurchase agreements bore interest at a LIBOR-based variable rate and increases in LIBOR could have negatively impacted earnings. Interest rate swap and cap agreements allow the Company to receive a variable rate cash flow based on LIBOR and pay a fixed rate cash flow, mitigating the impact of this exposure.
	All of the Company's derivative instruments have matured as of December 31, 2013. The Company’s derivative instruments consisted of the following at December 31, 2012:
				December 31, 2012
		Balance Sheet Location		Notional				Estimated
				Value				Fair Value
	Interest rate swaps	Derivative instruments		$	80,881			$	(156	)
	Interest rate caps	Derivative instruments		203,248			*	1
	Total derivative instruments							$	(155	)
	*	Represents the notional value at December 31, 2012 but does not include forward-starting notionals.
	The Company had an agreement with its derivative counterparty that contained a provision where if the Company either defaults or is capable of being declared in default on any of its indebtedness, then the Company could also be declared in default on its derivative obligations.
	The following table summarizes the amounts recognized on the consolidated statements of operations related to the Company’s derivatives for the years ended December 31, 2013, 2012 and 2011.
				Amount of loss
				recognized in
				income
		Location of Loss Recognized in Income		2013				2012				2011
	Interest rate swaps	Loss on derivative instruments – realized *		$	(157	)		$	(895	)		$	(1,831	)
	Interest rate swaps	Gain on derivative instruments – unrealized		156				$	510			$	763
	Interest rate caps	Loss on derivative instruments - unrealized		(1		)		(187		)		(1,628		)
	Total			$	(2	)		$	(572	)		$	(2,696	)
	*	Realized losses represent net amounts accrued for the Company’s derivative instruments during the period.
	The following table summarizes the gross asset and liability amounts related to the Company’s derivatives at December 31, 2013 and 2012.
		December 31, 2013												December 31, 2012
		Gross				Gross				Net Amounts				Gross		Gross			Net Amounts
		Amount of				Amounts				of Liabilities				Amount of		Amounts			of Liabilities
		Assets				Offset in the				Presented in				Assets		Offset in the			Presented in
		Recognized				Statement				the Statement				Recognized		Statement			the Statement
		as				of Financial				of Financial				as		of Financial			of Financial
		Liabilities				Position				Position				Liabilities		Position			Position
	Interest rate swaps	$	—			$	—			$	—			$	—	$	(156	)	$	(156	)
	Interest rate caps	—				—				—				1		—			1
	Total derivative instruments	$	—			$	—			$	—			$	1	$	(156	)	$	(155	)

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	Management Agreement
	In connection with the Company’s initial public offering (“IPO”) in September 2009, the Company entered into a management agreement (the “Management Agreement”) with ACREFI Management, LLC (the “Manager”), which describes the services to be provided by the Manager and its compensation for those services. The Manager is responsible for managing the Company’s day-to-day operations, subject to the direction and oversight of the Company’s board of directors.
	Pursuant to the terms of the Management Agreement, the Manager is paid a base management fee equal to 1.5% per annum of the Company’s stockholders’ equity (as defined in the Management Agreement), calculated and payable (in cash) quarterly in arrears.
	The current term of the Management Agreement expires on September 29, 2014, and is automatically renewed for successive one-year terms on each anniversary thereafter. The Management Agreement may be terminated upon expiration of the one-year terms only upon the affirmative vote of at least two-thirds of the Company’s independent directors, based upon (1) unsatisfactory performance by the Manager that is materially detrimental to the Company or (2) a determination that the management fee payable to the Manager is not fair, subject to the Manager’s right to prevent such a termination based on unfair fees by accepting a mutually acceptable reduction of management fees agreed to by at least two-thirds of the Company’s independent directors. The Manager must be provided with written notice of any such termination at least 180 days prior to the expiration of the then existing term and will be paid a termination fee equal to three times the sum of the average annual base management fee during the 24-month period immediately preceding the date of termination, calculated as of the end of the most recently completed fiscal quarter prior to the date of termination.
	For 2013, 2012 and 2011, respectively, the Company incurred approximately $10,012, $6,139 and $4,728 in base management fees. In addition to the base management fee, the Company is also responsible for reimbursing the Manager for certain expenses paid by the Manager on behalf of the Company or for certain services provided by the Manager to the Company. For 2013, 2012 and 2011, respectively, the Company recorded expenses totaling $745, $987 and $802 related to reimbursements for certain expenses paid by the Manager on behalf of the Company. Expenses incurred by the Manager and reimbursed by the Company are reflected in the respective consolidated statement of operations expense category or the consolidated balance sheet based on the nature of the item.
	Included in payable to related party on the consolidated balance sheet at December 31, 2013 and December 31, 2012, respectively, is approximately $2,628 and $2,037 for base management fees incurred but not yet paid.

ShareBased_Payments

Share-Based Payments	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Payments	'
	Share-Based Payments
	On September 23, 2009, the Company’s board of directors approved the Apollo Commercial Real Estate Finance, Inc., 2009 Equity Incentive Plan (the “LTIP”). The LTIP provides for grants of restricted common stock, restricted stock units (“RSUs”) and other equity-based awards up to an aggregate of 7.5% of the issued and outstanding shares of the Company’s common stock (on a fully diluted basis). The LTIP is administered by the compensation committee of the Company’s board of directors (the “Compensation Committee”) and all grants under the LTIP must be approved by the Compensation Committee.
	The Company recognized stock-based compensation expense of $3,488, $3,624 and $1,788 during 2013, 2012 and 2011, respectively, related to restricted stock and RSU vesting. The fair value of restricted stock that vested during 2013, 2012 and 2011 was $293, $717 and $663, respectively. The fair value of RSUs that vested during 2013, 2012 and 2011 was $2,854, $1,916 and $792, respectively.
	The following table summarizes the grants, exchanges and forfeitures of restricted stock and RSUs during 2013, 2012 and 2011:
		Type	Date	Restricted Stock	RSUs		Estimate Fair Value	Initial Vesting	Final Vesting
							on Grant Date
	Outstanding at January 1, 2011			151,828	118,959
		Grant	Apr-11	9,204			150	Jul-11	Apr-14
		Grant	Apr-11	—	5,000		82	Jul-11	Apr-14
		Grant	Aug-11	—	308,750		4,586	Jan-12	Jan-14
		Forfeiture *	Dec-11	—	(30,000	)	n/a	n/a	n/a
		Forfeiture*	Feb-12	—	(1,875	)	n/a	n/a	n/a
		Grant	Mar-12	—	20,000		310	Mar-13	Mar-15
		Grant	Apr-12	9,584	—		150	Jul-12	Apr-15
		Grant	Aug-12	1,496	—		25	Jul-13	Jul-15
		Canceled upon delivery	Oct-12	—	(112,084	)	n/a	n/a	n/a
		Grant	February 2013	20,000	—		352	Dec-13	Dec-15
		Grant	Feb-13	—	180,000		3,166	Dec-13	Dec-15
		Grant	Apr-13	11,304	—		200	Jul-13	Apr-16
		Grant	May-13	—	15,000		264	Dec-13	Dec-15
		Forfeiture *	Jun-13	—	(5,000	)	n/a	n/a	n/a
		Canceled upon delivery	Jul-13	—	(5,000	)	n/a	n/a	n/a
		Grant	Sep-13	—	10,000		154	Sep-13	Sep-13
		Grant	Nov-13	5,000	—		81	Dec-13	Oct-16
	Outstanding at December 31, 2013			208,416	503,750
	*	Represents RSUs forfeited by a former employee of the Manager in connection with such employee’s resignation from the Manager.
	**	Represents restricted stock forfeited by a former director of the Company in connection with such director’s resignation from the Company’s board of directors.
	Below is a summary of restricted stock and RSU vesting dates as of December 31, 2013.
	Vesting Date	Shares Vesting		RSU Vesting	Total Awards
	Jan-14	2,920		93,335	96,255
	Mar-14	—		6,667	6,667
	Apr-14	2,925		417	3,342
	Jul-14	2,157		—	2,157
	Jul-14	500		—	500
	Oct-14	2,153		—	2,153
	Dec-14	6,668		63,332	70,000
	Jan-15	2,160		—	2,160
	Mar-15	—		6,667	6,667
	Apr-15	2,161		—	2,161
	Jul-15	1,361		—	1,361
	Jul-15	500		—	500
	Oct-15	1,361		—	1,361
	Dec-15	6,668		63,341	70,009
	Jan-16	1,360		—	1,360
	Apr-16	1,361		—	1,361
	Jul-16	417		—	417
	Oct-16	416		—	416
		35,088		233,759	268,847
	At December 31, 2013, the Company had unrecognized compensation expense of approximately $562 and $2,351, respectively, related to the vesting of restricted stock awards and RSUs noted in the table above.
	RSU Deliveries
	During 2013 and 2012, respectively, the Company delivered 3,057 and 67,354 shares of common stock for 5,000 and 112,084 vested RSUs. The Company allows RSU participants to settle their tax liabilities with a reduction of their share delivery from the originally granted and vested RSUs. The amount, when agreed to by the participant, results in a cash payment to the Manager related to this tax liability and a corresponding adjustment to additional paid in capital on the consolidated statement of changes in stockholders equity. The adjustments were $31 and $779 in 2013 and 2012, respectively, and are included as reductions of capital increase related to the Company's equity incentive plan in the consolidated statement of changes in shareholders’ equity.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity	'
	Stockholders’ Equity
	The Company’s authorized capital stock consists of 450,000,000 shares of common stock, $0.01 par value per share and 50,000,000 shares of preferred stock, $0.01 par value per share. As of December 31, 2013, 36,888,467 shares of common stock were issued and outstanding and there were 3,450,000 shares of preferred stock issued and outstanding.
	Dividends.    During 2013 and 2012, the Company has declared the following dividends on its common stock:
	Declaration Date	Record Date	Payment Date	Amount
	February 28, 2012	March 31, 2012	April 12, 2012	$	0.4
	May 3, 2012	June 29, 2012	July 12, 2012	$	0.4
	August 6, 2012	September 28, 2012	October 12, 2012	$	0.4
	November 1, 2012	December 31, 2012	January 14, 2013	$	0.4
	February 27, 2013	March 28, 2013	April 12, 2013	$	0.4
	May 1, 2013	June 28, 2013	July 12, 2013	$	0.4
	July 31, 2013	September 30, 2013	October 11, 2013	$	0.4
	November 4, 2013	December 31, 2013	January 13, 2014	$	0.4
	During 2013 and 2012, the Company declared the following dividends on its Series A Preferred Stock:
	Declaration Date	Record Date	Payment Date	Amount
	September 13, 2012	September 28, 2012	October 15, 2012	$	0.4432	*
	December 13, 2012	December 31, 2012	January 15, 2013	$	0.5391
	March 15, 2013	March 28, 2013	April 15, 2013	$	0.5391
	June 12, 2013	June 28, 2013	July 15, 2013	$	0.5391
	September 16, 2013	September 30, 2013	October 15, 2013	$	0.5391
	December 9, 2013	December 30, 2013	January 15, 2014	$	0.5391
	*	Partial payment for the period from the date of issuance (August 1, 2012) through October 15, 2012.
	Common Offerings. During March 2013, the Company completed a follow-on public offering of 8,805,000 shares of its common stock, including the partial exercise of the underwriters’ option to purchase additional shares, at a price of $16.90 per share. The aggregate net proceeds from the offering, including proceeds from the sale of the additional shares, were approximately $148,333 after deducting estimated offering expenses payable by the Company.
	During October 2012, the Company completed a follow-on public offering of 7,000,000 shares of its common stock at a price of $16.81 per share. During November 2012, the underwriters partially exercised their option to purchase additional shares of common stock and purchased 404,640 shares of common stock at $16.81 per share. The aggregate net proceeds from the entire offering, including proceeds from the sale of the additional shares, were $124,066, after deducting estimated offering expenses payable by the Company.
	ATM Program. In May 2013, the Company entered into an ATM Equity Offering Sales Agreement with Merrill Lynch,Pierce, Fenner & Smith Incorporated and JMP Securities LLC (the "Agents"), relating to shares of the Company's common stock. In accordance with the terms of the agreement, the Company may offer and sell shares of common stock having an aggregate offering price of up to $100,000 from time to time through the Agents. Sales of the shares, if any, will be made by means of ordinary brokers' transactions or otherwise at market prices prevailing at the time of sale, at prices related to prevailing market prices or at negotiated prices, or as otherwise agreed with the applicable Agent. To date, the Company has not directed the Agents to sell any shares.
	Stock Repurchase Program. In July 2013, the Company's board of directors approved a stock repurchase program to authorize the Company to repurchase up to an aggregate of $50,000 of its shares of common stock. To date, the Company has not repurchased any shares pursuant to the stock repurchase program.
	Preferred Offering.    During August 2012, the Company completed an underwritten public offering of 3,450,000 shares of its 8.625% Series A Cumulative Redeemable Perpetual Preferred Stock with a liquidation preference of $25.00 per share including 450,000 shares issued pursuant to the underwriters option to purchase additional shares. Net proceeds from the offering, after the underwriting discount and estimated offering expenses payable by the Company, were $83,199.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	KBC Bank Deutschland AG. In September 2013, the Company, together with other affiliates of Apollo, reached an agreement to make an investment in an entity that has agreed to acquire a minority participation in KBC Bank Deutschland AG (“KBCD”). The Company committed to invest up to approximately $50,000 (€38,000), representing approximately 21% of the ownership in KBCD. The acquisition is subject to antitrust and regulatory approval, which is expected to take approximately nine months. Consequently, there is no assurance that the acquisition will close.
	Loan Commitments.    As described in Note 6, the Company had $29,106 of unfunded loan commitments related to the condominium conversion loan that closed in August 2013 as of December 31, 2013.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2013
Financial Instruments Disclosure [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	The following table presents the carrying value and estimated fair value of the Company’s financial instruments not carried at fair value on the consolidated balance sheet at December 31, 2013 and 2012:
		December 31, 2013						December 31, 2012
		Carrying			Estimated			Carrying			Estimated
		Value			Fair Value			Value			Fair Value
	Cash and cash equivalents	$	20,096		$	20,096		$	108,619		$	108,619
	Restricted cash	30,127			30,127			—			—
	Commercial first mortgage loans	161,099			164,405			142,921			150,144
	Subordinate loans	497,484			503,267			246,246			250,520
	Repurchase agreements	—			—			6,598			6,598
	Borrowings under repurchase agreements	(202,033		)	(202,148		)	(225,158		)	(225,158		)
	To determine estimated fair values of the financial instruments listed above, market rates of interest, which include credit assumptions, are used to discount contractual cash flows. The estimated fair values are not necessarily indicative of the amount the Company could realize on disposition of the financial instruments. The use of different market assumptions or estimation methodologies could have a material effect on the estimated fair value amounts. The Company’s commercial first mortgage loans, subordinate loans, repurchase agreements and borrowings under repurchase agreements are carried at amortized cost on the condensed consolidated financial statements and are classified as Level III in the fair value hierarchy.

Net_Income_Loss_per_Share

Net Income (Loss) per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Net Income (Loss) per Share	'
	Net Income (Loss) per Share
	GAAP requires use of the two-class method of computing earnings per share for all periods presented for each class of common stock and participating security as if all earnings for the period had been distributed. Under the two-class method, during periods of net income, the net income is first reduced for dividends declared on all classes of securities to arrive at undistributed earnings. During periods of net losses, the net loss is reduced for dividends declared on participating securities only if the security has the right to participate in the earnings of the entity and an objectively determinable contractual obligation to share in net losses of the entity.
	The remaining earnings are allocated to common stockholders and participating securities to the extent that each security shares in earnings as if all of the earnings for the period had been distributed. Each total is then divided by the applicable number of shares to arrive at basic earnings per share. For the diluted earnings, the denominator includes all outstanding common shares and all potential common shares assumed issued if they are dilutive. The numerator is adjusted for any changes in income or loss that would result from the assumed conversion of these potential common shares.
	The table below presents basic and diluted net income per share of common stock using the two-class method for the years ended December 31, 2013, 2012 and 2011:
		For the year ended December 31,
		2013			2012			2011
	Numerator:
	Net income	$	52,485		$	40,181		$	25,882
	Preferred dividends	(7,440		)	(3,079		)	—
	Net income available to common stockholders	45,045			37,102			25,882
	Dividends declared on common stock	(59,008		)	(35,899		)	(30,494		)
	Dividends on participating securities	(798		)	(628		)	(431		)
	Net income (loss) attributable to common stockholders	$	(14,761	)	$	575		$	(5,043	)
	Denominator:
	Basic weighted average shares of common stock outstanding	35,212,211			22,259,386			18,840,954
	Diluted weighted average shares of common stock outstanding	35,679,755			22,648,819			19,089,578
	Basic and diluted net income (loss) per weighted average share of common stock
	Distributable Earnings	$	1.68		$	1.61		$	1.62
	Undistributed income (loss)	(0.42		)	$	0.03		$	(0.27	)
	Basic and diluted net income per share of common stock	$	1.26		$	1.64		$	1.35
	For 2013 and 2011, respectively, unvested RSUs of 467,544 and 248,624 were excluded from the calculation of diluted net loss per share because the effect was anti-dilutive.

Summarized_Quarterly_Results

Summarized Quarterly Results	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Summarized Quarterly Results	'
	Summarized Quarterly Results (Unaudited)
		March 31,						June 30,						September 30,						December 31,
		2013			2012			2013			2012			2013			2012			2013			2012
	Net interest income:
	Interest income from securities	$	3,087		$	5,323		$	3,014		$	3,230		$	2,533		$	3,674		$	3,633		$	3,120
	Interest income from commercial mortgage loans	3,592			2,234			3,676			2,791			4,954			2,825			3,812			2,930
	Interest income from subordinate loans	11,454			5,313			11,498			5,859			12,184			6,144			14,026			7,350
	Interest income from repurchase agreements	2			1,559			—			2,000			—			2,361			—			366
	Interest expense	(1,068		)	(3,242		)	(955		)	(1,929		)	(885		)	(1,768		)	(1,450		)	(1,463		)
	Net interest income	17,067			11,187			17,233			11,951			18,786			13,236			20,021			12,303
	Operating expenses:
	General and administrative expenses	(1,895		)	(2,036		)	(1,437		)	(2,762		)	(1,793		)	(2,430		)	(2,438		)	(1,315		)
	Management fees to related party	(2,160		)	(1,289		)	(2,600		)	(1,292		)	(2,625		)	(1,518		)	(2,627		)	(2,040		)
	Total operating expenses	(4,055		)	(3,325		)	(4,037		)	(4,054		)	(4,418		)	(3,948		)	(5,065		)	(3,355		)
	Interest income from cash balances	—			1			16			—			3			—			1			6
	Realized loss on sale of security	—			262			—			—			—			—			—			—
	Unrealized gain (loss) on securities	(1,080		)	1,385			(1,421		)	2,078			(1,472		)	3,010			908			16
	Gain (loss) on derivative instruments	—			(417		)	(2		)	(65		)	1			(87		)	(1		)	(2		)
	Net income	11,932			9,093			11,789			9,910			12,900			12,211			15,864			8,968
	Preferred dividends	(1,860		)	—			(1,860		)	—			(1,860		)	(1,219		)	(1,860		)	(1,860		)
	Net income available to common stockholders	$	10,072		$	9,093		$	9,929		$	9,910		11,040			$	10,992		$	14,004		$	7,108
	Basic and diluted net income per share of common stock	$	0.33		$	0.43		$	0.27		$	0.47		$	0.29		$	0.52		$	0.37		$	0.26
	Basic weighted average common shares outstanding	30,105,939			20,561,032			36,880,410			20,570,616			36,883,002			20,571,478			36,886,619			27,297,600
	Diluted weighted average common shares outstanding	30,480,689			20,966,426			37,373,885			20,991,450			37,379,469			20,992,312			37,390,369			27,608,787
	Dividend declared per share of common stock	$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	Investment activity.  In February 2014, the Company provided a $80,000, floating rate first mortgage loan ($25,000 of which was funded at closing) for the development of a 50-unit luxury residential condominium in Montgomery County, Maryland. The Company’s loan is funding the first phase of a two-phase development and has a 30-month term with a 6-month extension option. On a fully funded basis, the first mortgage loan represents an underwritten loan-to-net sellout of approximately 68% and has been underwritten to generate a 15% IRR.
	Repayments.    In January 2014, the Company received a $15,000 principal repayment from a subordinate loan secured by a pledge of the equity interests in the owner of a New York City hotel. The Company realized a 14% IRR on this subordinate loan.
	Repurchase Facilities.    In January 2014, the Company exercised its option to extend the JPMorgan facility for an additional 364 days.
	In February 2014, the maturity date of the Wells Facility was extended to March 2015. In addition, the Company reduced the interest rate to LIBOR + 80 basis points from LIBOR + 105 basis points.
	Dividends.    On February 26, 2014, the Company’s board of directors declared a dividend of $0.40 per share of common stock which is payable on April 14, 2014 to common stockholders of record on March 31, 2014.
	Management Agreement.  Following a meeting by the Company’s independent directors in February 2014, which included a discussion of the Manager’s performance and the level of the management fees thereunder, the Company determined not to terminate the Management Agreement.

Schedule_IV_Mortgage_Loans_on_

Schedule IV - Mortgage Loans on Real Estate	12 Months Ended
	Dec. 31, 2013
Mortgage Loans on Real Estate [Abstract]	'
Schedule IV - Mortgage Loans on Real Estate	'
	Property Type	Location		Interest			Final		Periodic	Face		Carrying
				Rate			Extended Maturity		Payment Terms	amount of		amount of
							Date			loans		loans
	Commercial mortgage loans
	Hotel	New York		8.25	%		Feb - 15		30 year	$	31,317	$	31,317
	Office Condo (Headquarters)	New York		8	%		Feb - 15		30 year	27,169		27,169
	Hotel	Maryland		9	%		Apr -15		25 year	24,947		24,785
	Condo Conversion	New York		9	%		Jan -17		Interest only	45,000		44,867
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only	33,167		32,961
	Total commercial mortgage loans									161,600		161,099
	Subordinate loans (1)
	Office	Michigan		13	%		Jun - 20		25 year	8,866		8,866
	Ski Resort	California		14	%		May - 17		Interest only	40,000		39,781
	Hotel	New York		12	%		Feb - 15		Interest only	15,000		15,207
	Mixed Use	North Carolina		11.1	%		Aug - 22		Interest only	6,525		6,525
	Office Complex	Missouri		11.75	%		Oct - 22		30 year	9,849		9,849
	Hotel Portfolio	Various US cities		11.07	%		Nov - 16		30 year	48,431		48,397
	Condo Conversion	New York		9	%		Jan -17		Interest only	35,000		34,734
	Condo Construction	New York		13.25	%		July - 18		Interest only	66,800		66,340
	Multifamily Conversion	New York		10.48	%		Dec - 15		Interest only	18,000		17,906
	Hotel Portfolio	Minnesota		11	%		Feb - 18		30 year	24,771		24,771
	Warehouse Portfolio	Various US cities		11.5	%		May - 23		Interest only	32,000		32,000
	Multifamily Conversion	New York		12.25	%		Sept - 14		Interest only	44,000		43,859
	Office Condo	New York		11.25	%		Jul - 22		Interest only	14,000		13,565
	Condo Conversion	New York		9.67	%		Sept - 16		Interest only	295		2
	Mixed Use	Pennsylvania		9.42	%		Aug - 18		Interest only	22,500		22,342
	Healthcare Portfolio	Various US cities		11.15	%		Jun - 14		Interest only	47,000		47,000
	Mixed Use	Florida		10.42	%		Oct - 18		Interest only	50,000		49,535
	Mixed Use	Various US cities		14	%		Dec - 18		Interest only	17,000		16,805
	Total subordinate loans									500,037		497,484
	Total									$	661,637	$	658,583	(2)
	-1	Subject to prior liens.
	-2	The aggregate cost for federal income tax purposes is $658,583.
	The following table summarizes the changes in the carrying amounts of mortgage loans during 2013 and 2012.
	Reconciliation of Carrying Amount of Loans
		2013				2012
	Balance at beginning of year	$	389,167			$	258,092
	New mortgage loans	401,912				159,465
	Collections of principal	(137,168		)		(31,408		)
	Discount accretion	4,672				3,018
	Balance at the close of year	$	658,583			$	389,167

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying consolidated financial statements include the Company’s accounts and those of its consolidated subsidiaries. All significant intercompany amounts have been eliminated. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The Company’s most significant estimates include the fair value of financial instruments and loan loss reserve. Actual results could differ from those estimates.
Classification of investment securities and valuations of financial instruments	'
	Classification of investments and valuations of financial instruments
	The Company’s investments consist primarily of commercial mortgage loans, subordinate loans, CMBS and other real estate related assets that are classified as either available-for-sale or held-to-maturity. The Company has also elected the fair value option for certain CMBS.
Classification of Loans and Loan impairment	'
	Classification of Loans
	Loans held-for-investment are stated at the principal amount outstanding, net of deferred loan fees and costs in accordance with GAAP.
	Loan impairment
	The Company’s loans are typically collateralized by commercial real estate. As a result, the Company regularly evaluates the extent and impact of any credit migration associated with the performance and/or value of the underlying collateral property as well as the financial and operating capability of the borrower/sponsor on a loan by loan basis. Specifically, a property’s operating results and any cash reserves are analyzed and used to assess (i) whether cash from operations are sufficient to cover the debt service requirements currently and into the future, (ii) the ability of the borrower to refinance the loan, and/or (iii) the property’s liquidation value. The Company also evaluates the financial wherewithal of any loan guarantors as well as the borrower’s competency in managing and operating the properties. In addition, the Company considers the overall economic environment, real estate sector, and geographic sub-market in which the borrower operates. Such impairment analyses are completed and reviewed by asset management and finance personnel, who utilize various data sources, including (i) periodic financial data such as debt service coverage ratio, property occupancy, tenant profile, rental rates, operating expenses, the borrower’s exit plan, and capitalization and discount rates, (ii) site inspections, and (iii) current credit spreads and discussions with market participants.
	For loans classified as held-for-investment, the Company evaluates the loans for possible impairment on a quarterly basis. Impairment occurs when it is deemed probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan. Impairment is then measured based on the present value of expected future cash flows discounted at the loan’s effective rate or the fair value of the collateral, if the loan is collateral dependent. Upon measurement of impairment, the Company records an allowance to reduce the carrying value of the loan with a corresponding charge to net income. Significant judgments are required in determining impairment, including making assumptions regarding the value of the loan, the value of the underlying collateral and other provisions such as guarantees. The Company has determined that it is likely that it will receive contractual payments and a loan loss reserve was not necessary at December 31, 2013 and 2012.
Fair Value Election	'
	Fair Value Election
	Securities at estimated fair value consist of CMBS which are pledged under the Company’s master repurchase agreements with Wells Fargo Bank, N.A. (“Wells Fargo”) (the “Wells Facility”) and UBS AG, London Branch ("UBS") (the "UBS Facility"). In accordance with GAAP, the Company elected the fair value option for these securities at the date of purchase, which permits the Company to measure these securities at fair value with the change in estimated fair value included as a component of earnings.
Securities available-for-sale	'
	Securities available-for-sale
	The Company has designated investments in certain mortgage-backed securities as available-for-sale because the Company may dispose of them prior to maturity and does not hold them principally for the purpose of selling them in the near term. Securities available-for-sale are carried at estimated fair value with the net unrealized gains or losses reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity. Unrealized losses on securities that reflect a decline in value that is judged by management to be other than temporary, if any, are charged to earnings.
	When the estimated fair value of a security is less than amortized cost, the Company considers whether there is an other-than-temporary impairment (“OTTI”) in the value of the security. An impairment is deemed an OTTI if (i) the Company intends to sell the security, (ii) it is more likely than not that the Company will be required to sell the security before recovering its cost basis, or (iii) the Company does not expect to recover the entire amortized cost basis of the security even if the Company does not intend to sell the security or believes it is more likely than not that the Company will be required to sell the security before recovering its cost basis. If the impairment is deemed to be an OTTI, the resulting accounting treatment depends on the factors causing the OTTI. If the OTTI has resulted from (i) the Company’s intention to sell the security, or (ii) its judgment that it is more likely than not that it will be required to sell the security before recovering its cost basis, an impairment loss is recognized in current earnings equal to the difference between its amortized cost basis and fair value. Whereas, if the OTTI has resulted from the Company’s conclusion that it will not recover its cost basis even if the Company does not intend to sell the security or believes it is more likely than not that the Company will be required to sell the security before recovering its cost basis, the credit loss portion of the impairment is recorded in current earnings and the portion of the loss related to other factors, such as changes in interest rates, continues to be recognized in accumulated other comprehensive income. Determining whether there is an OTTI may require management to exercise significant judgment and make significant assumptions, including, but not limited to, estimated cash flows, estimated prepayments, loss assumptions, and assumptions regarding changes in interest rates. As a result, actual impairment losses could differ from reported amounts. Such judgments and assumptions are based upon a number of factors, including (i) credit of the issuer or the borrower, (ii) credit rating of the security, (iii) key terms of the security, (iv) performance of the loan or underlying loans, including debt service coverage and loan-to-value ratios, (v) the value of the collateral for the loan or underlying loans, (vi) the effect of local, industry, and broader economic factors, and (vii) the historical and anticipated trends in defaults and loss severities for similar securities.
Interest income recognition	'
	Interest income recognition
	Interest income on commercial mortgage loans is accrued based on the actual coupon rate and the outstanding principal balance adjusted for accretion of any purchase discounts, the amortization of any purchase premiums and the accretion of any deferred fees. Purchase premiums, purchase discounts and deferred fees are accreted into income using the effective yield method, adjusted for prepayments.
	Interest income on CMBS is accrued using the effective yield method, which includes the accretion of purchase discounts and the amortization of purchase premiums and the stated coupon interest payments.
Deferred Financing Costs	'
	Deferred Financing Costs
	Costs incurred in connection with collateralized financings are capitalized and amortized over the respective financing terms and are reflected on the accompanying consolidated statement of operations as a component of interest expense.
Earnings per share	'
	Earnings per share
	GAAP requires use of the two-class method of computing earnings per share for all periods presented for each class of common stock and participating security as if all earnings for the period had been distributed. Under the two-class method, during periods of net income, the net income is first reduced for dividends declared on all classes of securities to arrive at undistributed earnings. During periods of net losses, the net loss is reduced for dividends declared on participating securities only if the security has the right to participate in the earnings of the entity and an objectively determinable contractual obligation to share in net losses of the entity.
	The remaining earnings are allocated to common stockholders and participating securities, to the extent that each security shares in earnings, as if all of the earnings for the period had been distributed. Each total is then divided by the applicable number of shares to arrive at basic earnings per share. For the diluted earnings, the denominator includes all outstanding common shares and all potential common shares assumed issued if they are dilutive. The numerator is adjusted for any changes in income or loss that would result from the assumed conversion of these potential common shares.
Hedging instruments and hedging activities	'
	Hedging instruments and hedging activities
	Consistent with maintaining its status as a REIT, in the normal course of business, the Company may use a variety of derivative financial instruments to manage, or hedge, interest rate risk. Derivatives will be used for hedging purposes rather than speculation. The Company will determine their fair value and obtain quotations from a third party to facilitate the process in determining these fair values. If the Company’s hedging activities do not achieve the desired results, reported earnings may be adversely affected.
	GAAP requires an entity to recognize all derivatives as either assets or liabilities in the balance sheets and to measure those instruments at fair value. To the extent the instrument qualifies for hedge accounting, the fair value adjustments will be recorded as a component of other comprehensive income in stockholders’ equity until the hedged item is recognized in earnings. Should the Company choose not to pursue hedge accounting, the fair value adjustments will be recorded in earnings immediately.
	In order to mitigate interest rate risk resulting from the Company’s floating-rate borrowings under the Wells Facility, the Company entered into interest rate swaps and caps with an aggregate notional equal to the borrowings outstanding under the Wells Facility during 2010. The interest rate swaps were used to hedge the floating-rate borrowings through the expected maturity of the underlying collateral and the interest rate caps were used to hedge the floating-rate borrowings related to the potential extension of the underlying collateral. All of the Company's interest rate swaps and caps have matured as of December 31, 2013.
	The Company did not elect hedge accounting for these derivative instruments and recorded the change in estimated fair value related to these interest rate agreements in earnings. The Company also elected to record the change in estimated fair value related to the CMBS securing the Wells Facility in earnings. This election allowed the Company to align the change in the estimated fair value of the Wells Facility collateral and related interest rate hedges without having to apply complex hedge accounting provisions.
Repurchase agreements	'
	Repurchase agreements
	Securities sold under repurchase agreements will be treated as collateralized financing transactions, unless they meet sales treatment. Securities financed through a repurchase agreement will remain on the Company’s consolidated balance sheet as an asset and cash received from the purchaser will be recorded on the Company’s consolidated balance sheet as a liability. Interest paid in accordance with repurchase agreements will be recorded in interest expense.
Share-based payments	'
	Share-based payments
	The Company accounts for share-based compensation to its independent directors and to the Manager and to employees of the Manager and its affiliates using the fair value based methodology prescribed by GAAP. Compensation cost related to restricted common stock issued to the Company’s independent directors is measured at its estimated fair value at the grant date, and amortized into expense over the vesting period on a straight-line basis. Compensation cost related to restricted common stock issued to the Manager and to employees of the Manager and its affiliates will initially be measured at estimated fair value at the grant date, and remeasured on subsequent dates to the extent the awards are unvested. To amortize compensation expense for the restricted common stock granted to the Manager and to employees of the Manager and its affiliates, the Company uses the graded vesting attribution method.
Income taxes	'
	Income taxes
	The Company has elected to be taxed as a REIT under Sections 856-860 of the Internal Revenue Code of 1986, as amended. Under those sections, a REIT which distributes at least 90% of its REIT taxable income, excluding net capital gains and determined without regard to the dividends paid deduction, as a dividend to its shareholders each year and which meets certain other conditions will not be taxed on that portion of its taxable income which is distributed to its shareholders.
	The Company has elected to treat certain consolidated subsidiaries, and may in the future elect to treat newly formed subsidiaries, as taxable REIT subsidiaries pursuant to an amendment to the Internal Revenue Code that became effective January 1, 2001. Taxable REIT subsidiaries may participate in non-real estate related activities and/or perform non-customary services for tenants and are subject to Federal and State income tax at regular corporate tax rates.
Recent accounting pronouncements	'
	Recent accounting pronouncements
	In December 2011, the Financial Accounting Standards Board (the “FASB”) issued guidance to enhance disclosures about financial instruments and derivative instruments that are either (1) offset or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset. Under the guidance, an entity is required to disclose quantitative information relating to recognized assets and liabilities that are offset or subject to an enforceable master netting arrangement or similar agreement, including the gross amounts of those recognized assets and liabilities, the amounts offset to determine the net amount presented in the statement of financial position, and the net amount presented in the statement of financial position. With respect to amounts subject to an enforceable master netting arrangement or similar agreement which are not offset, disclosure is required of the amounts related to recognized financial instruments and other derivative instruments, the amount related to financial collateral (including cash collateral), and the overall net amount after considering amounts that have not been offset. The guidance is effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods and retrospective application is required. As the amendments are limited to disclosure only, the adoption of this guidance did not have a material impact on the consolidated financial statements of the Company’s consolidated financial statements.
	In January 2013, the FASB issued guidance to clarify the scope of disclosures about offsetting assets and liabilities. The amendments clarify that the scope of guidance issued in December 2011 to enhance disclosures around financial instruments and derivative instruments that are either (1) offset, or (2) subject to a master netting arrangement or similar agreement, irrespective of whether they are offset, applies to derivatives, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset or subject to an enforceable master netting arrangement or similar agreement. The amendments are effective for interim and annual periods beginning on or after January 1, 2013. As the amendments are limited to disclosure only, the adoption of this guidance did not have a material impact on the consolidated financial statements of the Company’s consolidated financial statements.
	In February 2013, the FASB issued an update which includes amendments that require an entity to report the effect of significant reclassifications out of accumulated other comprehensive income ("OCI") on the respective line items in net income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other required disclosures that provide additional detail about those amounts. The new requirement presents information on amounts reclassified out of accumulated OCI and their corresponding effect on net income in one place or in some cases, provides for cross-references to related footnote disclosures. For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. During 2013, 2012 and 2011, the Company had no amounts reclassified into or out of OCI.
	In June 2013, the FASB issued guidance to change the assessment of whether an entity is an investment company by developing a new two-tiered approach that requires an entity to possess certain fundamental characteristics while allowing judgment in assessing certain typical characteristics. The fundamental characteristics that an investment company is required to have include the following: (1) it obtains funds from one or more investors and provides the investor(s) with investment management services; (2) it commits to its investor(s) that its business purpose and only substantive activities are investing the funds solely for returns from capital appreciation, investment income or both; and (3) it does not obtain returns or benefits from an investee or its affiliates that are not normally attributable to ownership interests. The typical characteristics of an investment company that an entity should consider before concluding whether it is an investment company include the following: (1) it has more than one investment; (2) it has more than one investor; (3) it has investors that are not related parties of the parent or the investment manager; (4) it has ownership interests in the form of equity or partnership interests; and (5) it manages substantially all of its investments on a fair value basis. The new approach requires an entity to assess all of the characteristics of an investment company and consider its purpose and design to determine whether it is an investment company. The guidance includes disclosure requirements about an entity’s status as an investment company and financial support provided or contractually required to be provided by an investment company to its investees. The guidance is effective for interim and annual reporting periods in fiscal years beginning after December 15, 2013. Earlier application is prohibited. The ASU prohibits REITs from qualifying for investment company accounting under ASC 946, as such, we have determined that we will not meet the definition of an investment company under this ASU when adopted.

Fair_Value_Disclosure_Tables

Fair Value Disclosure (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Summarizes Levels in Fair Value Hierarchy of Financial Instruments	'
	The following table summarizes the levels in the fair value hierarchy into which the Company’s financial instruments were categorized as of December 31, 2013:
		Fair Value as of December 31, 2013
		Level I		Level II			Level III		Total
	CMBS (Available-for-Sale)	$	—	$	33,362		$	—	$	33,362
	CMBS (Fair Value Option)	—		158,086			—		158,086
	Total	$	—	$	191,448		$	—	$	191,448
	The following table summarizes the levels in the fair value hierarchy into which the Company’s financial instruments were categorized as of December 31, 2012:
		Fair Value as of December 31, 2012
		Level I		Level II			Level III		Total
	CMBS (Available-for-Sale)	$	—	$	67,079		$	—	$	67,079
	CMBS (Fair Value Option)	—		138,248			—		138,248
	CMBS – Hilton (Fair Value Option)	—		73,561			—		73,561
	Interest rate swaps	—		(156		)	—		(156		)
	Interest rate caps	—		1			—		1
	Total	$	—	$	278,733		$	—	$	278,733

Debt_Securities_Tables

Debt Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Amortized Cost and Estimated Fair Value	'
	The amortized cost and estimated fair value of the Company’s debt securities at December 31, 2013 are summarized as follows:
	Security Description	Face			Amortized		Gross		Gross			Estimated
		Amount			Cost		Unrealized		Unrealized			Fair Value
							Gain		Loss
	CMBS (Available-for-Sale)	$	33,066		$	34,232	$	—	$	(870	)	$	33,362
	CMBS (Fair Value Option)	155,577			155,946		2,313		(173		)	158,086
	Total	$	188,643		$	190,178	$	2,313	$	(1,043	)	$	191,448
	During June 2012, the Company purchased CMBS with a face amount of $74,854 for which the obligors are certain special purpose entities formed in 2010 to hold substantially all of the assets of Hilton Worldwide, Inc. (the “Hilton CMBS”). The Hilton CMBS was purchased for $70,655 and was financed with $49,459 of borrowings under the Company’s master repurchase agreement with Wells Fargo Bank, N.A. (the “Wells Facility”), which was amended to provide up to $100,000 of additional financing for the Hilton CMBS. See Note 8 – Borrowings for a description of the Wells Facility. The Company has elected the fair value option for the Hilton CMBS. The Hilton CMBS and related borrowings were fully repaid in November 2013.
	During March 2012, the Company sold CMBS with an amortized cost of $137,423 resulting in a net realized gain of $262, which was comprised of realized gains of $345 and realized losses of $83. The sale generated proceeds of $14,621 after the repayment of $123,064 of borrowings under the Wells Facility.
	The amortized cost and estimated fair value of the Company’s debt securities at December 31, 2012 are summarized as follows:
	Security Description	Face			Amortized		Gross		Gross			Estimated
		Amount			Cost		Unrealized		Unrealized			Fair Value
							Gain		Loss
	CMBS (Available-for-Sale)	$	65,410		$	67,109	$	249	$	(279	)	$	67,079
	CMBS (Fair Value Option)	134,694			136,354		2,061		(167		)	138,248
	CMBS – Hilton (Fair Value Option)	73,239			70,250		3,311		—			73,561
	Total	$	273,343		$	273,713	$	5,621	$	(446	)	$	278,888
Overall Statistics for Company's AAA-Rated CMBS Investments Calculated on Weighted Average Basis	'
	The overall statistics for the Company’s CMBS investments (excluding the Hilton CMBS) calculated on a weighted average basis assuming no early prepayments or defaults as of December 31, 2013 and 2012 are as follows:
		December 31,		December 31,
		2013		2012
	Credit Ratings *	AAA-CCC		AAA
	Coupon	5.8	%	5.6	%
	Yield	5.3	%	4.1	%
	Weighted Average Life	3.1 years		1.8 years
	*	Ratings per Fitch, Moody’s or S&P
Percentage Vintage, Property Type, and Location of Collateral Securing Company's AAA-Rated CMBS Investments Calculated on Weighted Average Basis	'
	The percentage vintage, property type, and location of the collateral securing the Company’s CMBS investments (excluding the Hilton CMBS) calculated on a weighted average basis as of December 31, 2013 and 2012 are as follows:
	Vintage	December 31,		December 31,
		2013		2012
	2006	3	%	1	%
	2007	97		99
	Total	100	%	100	%
	Property Type	December 31,		December 31,
		2013		2012
	Office	35.5	%	40.5	%
	Retail	24.1		23.2
	Hotel	13.7		10.5
	Multifamily	12.7		12.9
	Other *	14		12.9
	Total	100	%	100	%
	*	No other individual category comprises more than 10% of the total.
	Location	December 31,		December 31,
		2013		2012
	South Atlantic	23.4	%	21.8	%
	Middle Atlantic	22.8		21.4
	Pacific	17.6		23.8
	Other *	36.2		33
	Total	100	%	100	%
	*	No other individual category comprises more than 10% of the total.

Commercial_Mortgage_Loans_Tabl

Commercial Mortgage Loans (Tables) (Commercial mortgage loans [Member])

12 Months Ended

Dec. 31, 2013

Commercial mortgage loans [Member]

'

Mortgage Loans on Real Estate [Line Items]

'

Schedule of Mortgage Loans on Real Estate

'

The Company’s commercial mortgage loan portfolio was comprised of the following as of December 31, 2012:

Description

Date of

Maturity

Original

Current

Carrying

Coupon

Property Size

Investment

Date

Face

Face

Value

Amount

Amount

Hotel - NY, NY

10-Jan

15-Feb

$

32,000

$

31,571

$

31,571

Fixed

151 rooms

Office Condo (Headquarters) - NY, NY

10-Feb

15-Feb

28,000

27,419

27,419

Fixed

73,419 sq. ft.

Hotel - Silver Spring, MD

10-Mar

15-Apr

26,000

25,273

25,273

Fixed

263 rooms

Mixed Use – South Boston, MA (1)

12-Apr

13-Dec

23,844

17,287

14,105

Floating

20 acres

Condo Conversion – NY, NY (2)

12-Dec

15-Jan

45,000

45,000

44,553

Floating

119,000 sq. ft.

Total/Weighted Average

$

154,844

$

146,550

$

142,921

7.82

%

The Company’s commercial mortgage loan portfolio was comprised of the following at December 31, 2013:

Description

Date of

Maturity

Original

Current

Carrying

Coupon

Property Size

Investment

Date

Face

Face

Value

Amount

Amount

Hotel - NY, NY

10-Jan

15-Feb

$

32,000

$

31,317

$

31,317

Fixed

151 rooms

Office Condo (Headquarters) - NY, NY

10-Feb

15-Feb

28,000

27,169

27,169

Fixed

73,419 sq. ft.

Hotel - Silver Spring, MD

10-Mar

15-Apr

26,000

24,947

24,785

Fixed

263 rooms

Condo Conversion – NY, NY (1)

12-Dec

15-Jan

45,000

45,000

44,867

Floating

119,000 sq. ft.

Condo Conversion – NY, NY (2)

13-Aug

15-Sep

33,000

33,167

32,961

Floating

40,000 sq. ft.

Total/Weighted Average

$

164,000

$

161,600

$

161,099

8.82

%

-1

This loan includes two one-year extension options subject to certain conditions and the payment of a fee for each extension.

-2

This loan includes a one-year extension option subject to certain conditions and the payment of a fee.

Subordinate_Loans_Tables

Subordinate Loans (Tables) (Subordinate Loans [Member])	12 Months Ended
	Dec. 31, 2013
Subordinate Loans [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Schedule of Mortgage Loans on Real Estate	'
	The Company’s subordinate loan portfolio was comprised of the following as of December 31, 2012:
	Description	Date of	Maturity	Original		Current		Carrying		Coupon
		Investment	Date	Face		Face		Value
				Amount		Amount
	Senior Mezz - Retail - Various	9-Dec	19-Dec	$	30,000	$	30,000	$	30,000	Fixed
	Junior Mezz - Retail - Various	9-Dec	19-Dec	20,000		20,000		20,000		Fixed
	Office - Michigan	10-May	20-Jun	9,000		8,912		8,912		Fixed
	Ski Resort - California	11-Apr	17-May	40,000		40,000		39,831		Fixed
	Hotel Portfolio – New York (1)	11-Aug	13-Jul	25,000		25,000		25,000		Floating
	Retail Center – Virginia (2)	11-Oct	14-Oct	25,000		26,243		26,243		Fixed
	Hotel– New York (3)	12-Jan	14-Feb	15,000		15,000		15,013		Fixed
	Hotel– New York (4)	12-Mar	14-Mar	15,000		15,000		15,000		Floating
	Mixed Use – North Carolina	12-Jul	22-Jul	6,525		6,525		6,525		Fixed
	Office Complex - Missouri	12-Sep	22-Oct	10,000		9,979		9,979		Fixed
	Hotel Portfolio - Various (5)	12-Nov	15-Nov	50,000		49,950		49,743		Floating
	Condo Conversion – NY, NY (6)	12-Dec	15-Jan	350		350		—		Floating
	Total/Weighted Average			$	245,875	$	246,959	$	246,246	12.46	%
	-1	Includes three one-year extension options subject to certain conditions and the payment of a fee for the fourth and fifth year extensions.
	-2	Includes two one-year extension options subject to certain conditions.
	-3	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-4	Includes two one-year extension options subject to certain conditions and the payment of a fee for the second extension.
	-5	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-6	Includes two one-year extension options subject to certain conditions and the payment of a fee for each extension. As of December 31, 2012, the Company had $34,650 of unfunded loan commitments related to this loan.
	The Company’s subordinate loan portfolio was comprised of the following as of December 31, 2013:
	Description	Date of	Maturity	Original		Current		Carrying		Coupon
		Investment	Date	Face		Face		Value
				Amount		Amount
	Office - Michigan	10-May	20-Jun	$	9,000	$	8,866	$	8,866	Fixed
	Ski Resort - California	11-Apr	17-May	40,000		40,000		39,781		Fixed
	Hotel– New York (1)	12-Jan	14-Feb	15,000		15,000		15,207		Fixed
	Mixed Use – North Carolina	12-Jul	22-Jul	6,525		6,525		6,525		Fixed
	Office Complex - Missouri	12-Sep	22-Oct	10,000		9,849		9,849		Fixed
	Hotel Portfolio – Various (1)	12-Nov	15-Nov	50,000		48,431		48,397		Floating
	Condo Conversion – NY, NY (2)	12-Dec	15-Jan	35,000		35,000		34,734		Floating
	Condo Construction – NY, NY (1)	13-Jan	17-Jul	60,000		66,800		66,340		Fixed
	Multifamily Conversion – NY, NY (1)	13-Jan	14-Dec	18,000		18,000		17,906		Floating
	Hotel Portfolio – Rochester, MN	13-Jan	18-Feb	25,000		24,771		24,771		Fixed
	Warehouse Portfolio - Various	13-May	23-May	32,000		32,000		32,000		Fixed
	Multifamily Conversion – NY, NY (3)	13-May	14-Jun	44,000		44,000		43,859		Floating
	Office Condo - NY, NY	13-Jul	22-Jul	14,000		14,000		13,565		Fixed
	Condo Conversion – NY, NY (4)	13-Aug	15-Sep	294		295		2		Floating
	Mixed Use - Pittsburgh, PA (1)	13-Aug	16-Aug	22,500		22,500		22,342		Floating
	Healthcare Portfolio - Various	13-Oct	14-Jun	47,000		47,000		47,000		Floating
	Mixed Use - Florida (2)	13-Nov	18-Oct	50,000		50,000		49,535		Floating
	Mixed Use - Various (2)	13-Dec	18-Dec	17,000		17,000		16,805		Fixed
	Total/Weighted Average			$	495,319	$	500,037	$	497,484	11.6	%
	-1	Includes a one-year extension option subject to certain conditions and the payment of an extension fee.
	-2	Includes two one-year extension options subject to certain conditions and the payment of a fee for each extension.
	-3	Includes a three-month extension option subject to certain conditions and the payment of an extension fee.
	-4	Includes a one-year extension option subject to certain conditions and the payment of an extension fee. As of December 31, 2013, the Company had $29,106 of unfunded loan commitments related to this loan.

Borrowings_Tables

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Weighted Average Maturities and Interest Rates of Borrowings	'
	At December 31, 2013 and 2012, the Company’s borrowings had the following weighted average maturities and interest rates:
		December 31, 2013							31-Dec-12
		Debt		Weighted		Weighted			Debt			Weighted		Weighted
		Balance		Average		Average			Balance			Average		Average
				Remaining		Rate						Remaining		Rate
				Maturity								Maturity
	Wells Facility borrowings	$	47,751	0.2 years		1.2	%		$	225,155		1.1 years	*	1.8	%	**
	UBS Facility borrowings	133,899		4.7 years	*	2.8	%		—			0		—	%	Fixed
	JPMorgan Facility borrowings	20,383		1.1 years	*	2.7	%		3			5 days		2.7	%	L+250
	Total borrowings	$	202,033	3.3 years		2.4	%		$	225,158		1.1 years		1.8	%
	*	Assumes extension options are exercised.
	**	Borrowings outstanding under the Wells Facility bear interest at a LIBOR plus 105, 125 basis points, 150 basis points or 235 basis points depending on the collateral pledged.
Remaining Maturities of Borrowings	'
	At December 31, 2013, the Company’s borrowings had the following remaining maturities:
		Less than		1 to 3				3 to 5			More than				Total
		1 year		years				years			5 years
	Wells Facility borrowings	$	47,751	$	—			$	—		$	—			$	47,751
	UBS Facility borrowings *	—		5,004				128,895			—				133,899
	JPMorgan Facility borrowings *	204		20,179				—			—				20,383
	Total	$	47,955	$	25,183			$	128,895		$	—			$	202,033
	*	Assumes extension options are exercised.
Schedule of Outstanding, Maximum and Average Balances of Debt	'
	The table below summarizes the outstanding balances, as well as the maximum and average balances as of December 31, 2013 and 2012.
				2013											2012
		Balance at		Maximum Month-End				Average Month-End			Balance at				Maximum Month-End		Average Month-End
		December 31,		Balance				Balance			December 31,				Balance		Balance
		2013									2012
	Wells Facility borrowings	$	47,751	$	225,156			$	168,747		$	225,155			$	469,147	$	283,100
	UBS Facility borrowings	133,899		133,899				31,728			—				—		—
	JPMorgan Facility borrowings	20,383		20,383				3,138			$	3			$	68,720	$	37,461
	Total	$	202,033								$	225,158

Derivative_Instruments_Tables

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Company's Derivative Instruments, Weighted Average Maturities and Interest Rates	'
	The Company’s derivative instruments consisted of the following at December 31, 2012:
				December 31, 2012
		Balance Sheet Location		Notional				Estimated
				Value				Fair Value
	Interest rate swaps	Derivative instruments		$	80,881			$	(156	)
	Interest rate caps	Derivative instruments		203,248			*	1
	Total derivative instruments							$	(155	)
	*	Represents the notional value at December 31, 2012 but does not include forward-starting notionals.
Summary of Amounts Recognized on Consolidated Statements of Operations Related to Company's Derivatives	'
	The following table summarizes the amounts recognized on the consolidated statements of operations related to the Company’s derivatives for the years ended December 31, 2013, 2012 and 2011.
				Amount of loss
				recognized in
				income
		Location of Loss Recognized in Income		2013				2012				2011
	Interest rate swaps	Loss on derivative instruments – realized *		$	(157	)		$	(895	)		$	(1,831	)
	Interest rate swaps	Gain on derivative instruments – unrealized		156				$	510			$	763
	Interest rate caps	Loss on derivative instruments - unrealized		(1		)		(187		)		(1,628		)
	Total			$	(2	)		$	(572	)		$	(2,696	)
	*	Realized losses represent net amounts accrued for the Company’s derivative instruments during the period.
Summarizes Gross Asset and Liability Amounts Related to Derivatives	'
	The following table summarizes the gross asset and liability amounts related to the Company’s derivatives at December 31, 2013 and 2012.
		December 31, 2013												December 31, 2012
		Gross				Gross				Net Amounts				Gross		Gross			Net Amounts
		Amount of				Amounts				of Liabilities				Amount of		Amounts			of Liabilities
		Assets				Offset in the				Presented in				Assets		Offset in the			Presented in
		Recognized				Statement				the Statement				Recognized		Statement			the Statement
		as				of Financial				of Financial				as		of Financial			of Financial
		Liabilities				Position				Position				Liabilities		Position			Position
	Interest rate swaps	$	—			$	—			$	—			$	—	$	(156	)	$	(156	)
	Interest rate caps	—				—				—				1		—			1
	Total derivative instruments	$	—			$	—			$	—			$	1	$	(156	)	$	(155	)

ShareBased_Payments_Tables

Share-Based Payments (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Summary of Grants, Exchanges and Forfeitures of Restricted Stock and RSUs	'
	The following table summarizes the grants, exchanges and forfeitures of restricted stock and RSUs during 2013, 2012 and 2011:
		Type	Date	Restricted Stock	RSUs		Estimate Fair Value	Initial Vesting	Final Vesting
							on Grant Date
	Outstanding at January 1, 2011			151,828	118,959
		Grant	Apr-11	9,204			150	Jul-11	Apr-14
		Grant	Apr-11	—	5,000		82	Jul-11	Apr-14
		Grant	Aug-11	—	308,750		4,586	Jan-12	Jan-14
		Forfeiture *	Dec-11	—	(30,000	)	n/a	n/a	n/a
		Forfeiture*	Feb-12	—	(1,875	)	n/a	n/a	n/a
		Grant	Mar-12	—	20,000		310	Mar-13	Mar-15
		Grant	Apr-12	9,584	—		150	Jul-12	Apr-15
		Grant	Aug-12	1,496	—		25	Jul-13	Jul-15
		Canceled upon delivery	Oct-12	—	(112,084	)	n/a	n/a	n/a
		Grant	February 2013	20,000	—		352	Dec-13	Dec-15
		Grant	Feb-13	—	180,000		3,166	Dec-13	Dec-15
		Grant	Apr-13	11,304	—		200	Jul-13	Apr-16
		Grant	May-13	—	15,000		264	Dec-13	Dec-15
		Forfeiture *	Jun-13	—	(5,000	)	n/a	n/a	n/a
		Canceled upon delivery	Jul-13	—	(5,000	)	n/a	n/a	n/a
		Grant	Sep-13	—	10,000		154	Sep-13	Sep-13
		Grant	Nov-13	5,000	—		81	Dec-13	Oct-16
	Outstanding at December 31, 2013			208,416	503,750
	*	Represents RSUs forfeited by a former employee of the Manager in connection with such employee’s resignation from the Manager.
	**	Represents restricted stock forfeited by a former director of the Company in connection with such director’s resignation from the Company’s board of directors.
	Below is a summary of restricted stock and RSU vesting dates as of December 31, 2013.
	Vesting Date	Shares Vesting		RSU Vesting	Total Awards
	Jan-14	2,920		93,335	96,255
	Mar-14	—		6,667	6,667
	Apr-14	2,925		417	3,342
	Jul-14	2,157		—	2,157
	Jul-14	500		—	500
	Oct-14	2,153		—	2,153
	Dec-14	6,668		63,332	70,000
	Jan-15	2,160		—	2,160
	Mar-15	—		6,667	6,667
	Apr-15	2,161		—	2,161
	Jul-15	1,361		—	1,361
	Jul-15	500		—	500
	Oct-15	1,361		—	1,361
	Dec-15	6,668		63,341	70,009
	Jan-16	1,360		—	1,360
	Apr-16	1,361		—	1,361
	Jul-16	417		—	417
	Oct-16	416		—	416
		35,088		233,759	268,847

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity	'
	During 2013 and 2012, the Company has declared the following dividends on its common stock:
	Declaration Date	Record Date	Payment Date	Amount
	February 28, 2012	March 31, 2012	April 12, 2012	$	0.4
	May 3, 2012	June 29, 2012	July 12, 2012	$	0.4
	August 6, 2012	September 28, 2012	October 12, 2012	$	0.4
	November 1, 2012	December 31, 2012	January 14, 2013	$	0.4
	February 27, 2013	March 28, 2013	April 12, 2013	$	0.4
	May 1, 2013	June 28, 2013	July 12, 2013	$	0.4
	July 31, 2013	September 30, 2013	October 11, 2013	$	0.4
	November 4, 2013	December 31, 2013	January 13, 2014	$	0.4
	During 2013 and 2012, the Company declared the following dividends on its Series A Preferred Stock:
	Declaration Date	Record Date	Payment Date	Amount
	September 13, 2012	September 28, 2012	October 15, 2012	$	0.4432	*
	December 13, 2012	December 31, 2012	January 15, 2013	$	0.5391
	March 15, 2013	March 28, 2013	April 15, 2013	$	0.5391
	June 12, 2013	June 28, 2013	July 15, 2013	$	0.5391
	September 16, 2013	September 30, 2013	October 15, 2013	$	0.5391
	December 9, 2013	December 30, 2013	January 15, 2014	$	0.5391
	*	Partial payment for the period from the date of issuance (August 1, 2012) through October 15, 2012.

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Financial Instruments Disclosure [Abstract]	'
Carrying Value and Estimated Fair Value of Company's Financial Instruments	'
	The following table presents the carrying value and estimated fair value of the Company’s financial instruments not carried at fair value on the consolidated balance sheet at December 31, 2013 and 2012:
		December 31, 2013						December 31, 2012
		Carrying			Estimated			Carrying			Estimated
		Value			Fair Value			Value			Fair Value
	Cash and cash equivalents	$	20,096		$	20,096		$	108,619		$	108,619
	Restricted cash	30,127			30,127			—			—
	Commercial first mortgage loans	161,099			164,405			142,921			150,144
	Subordinate loans	497,484			503,267			246,246			250,520
	Repurchase agreements	—			—			6,598			6,598
	Borrowings under repurchase agreements	(202,033		)	(202,148		)	(225,158		)	(225,158		)

Net_Income_Loss_per_Share_Tabl

Net Income (Loss) per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Basic and Diluted Net Income per Share of Common Stock Using Two-Class Method	'
	The table below presents basic and diluted net income per share of common stock using the two-class method for the years ended December 31, 2013, 2012 and 2011:
		For the year ended December 31,
		2013			2012			2011
	Numerator:
	Net income	$	52,485		$	40,181		$	25,882
	Preferred dividends	(7,440		)	(3,079		)	—
	Net income available to common stockholders	45,045			37,102			25,882
	Dividends declared on common stock	(59,008		)	(35,899		)	(30,494		)
	Dividends on participating securities	(798		)	(628		)	(431		)
	Net income (loss) attributable to common stockholders	$	(14,761	)	$	575		$	(5,043	)
	Denominator:
	Basic weighted average shares of common stock outstanding	35,212,211			22,259,386			18,840,954
	Diluted weighted average shares of common stock outstanding	35,679,755			22,648,819			19,089,578
	Basic and diluted net income (loss) per weighted average share of common stock
	Distributable Earnings	$	1.68		$	1.61		$	1.62
	Undistributed income (loss)	(0.42		)	$	0.03		$	(0.27	)
	Basic and diluted net income per share of common stock	$	1.26		$	1.64		$	1.35

Summarized_Quarterly_Results_T

Summarized Quarterly Results (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Summarized Quarterly Results	'
		March 31,						June 30,						September 30,						December 31,
		2013			2012			2013			2012			2013			2012			2013			2012
	Net interest income:
	Interest income from securities	$	3,087		$	5,323		$	3,014		$	3,230		$	2,533		$	3,674		$	3,633		$	3,120
	Interest income from commercial mortgage loans	3,592			2,234			3,676			2,791			4,954			2,825			3,812			2,930
	Interest income from subordinate loans	11,454			5,313			11,498			5,859			12,184			6,144			14,026			7,350
	Interest income from repurchase agreements	2			1,559			—			2,000			—			2,361			—			366
	Interest expense	(1,068		)	(3,242		)	(955		)	(1,929		)	(885		)	(1,768		)	(1,450		)	(1,463		)
	Net interest income	17,067			11,187			17,233			11,951			18,786			13,236			20,021			12,303
	Operating expenses:
	General and administrative expenses	(1,895		)	(2,036		)	(1,437		)	(2,762		)	(1,793		)	(2,430		)	(2,438		)	(1,315		)
	Management fees to related party	(2,160		)	(1,289		)	(2,600		)	(1,292		)	(2,625		)	(1,518		)	(2,627		)	(2,040		)
	Total operating expenses	(4,055		)	(3,325		)	(4,037		)	(4,054		)	(4,418		)	(3,948		)	(5,065		)	(3,355		)
	Interest income from cash balances	—			1			16			—			3			—			1			6
	Realized loss on sale of security	—			262			—			—			—			—			—			—
	Unrealized gain (loss) on securities	(1,080		)	1,385			(1,421		)	2,078			(1,472		)	3,010			908			16
	Gain (loss) on derivative instruments	—			(417		)	(2		)	(65		)	1			(87		)	(1		)	(2		)
	Net income	11,932			9,093			11,789			9,910			12,900			12,211			15,864			8,968
	Preferred dividends	(1,860		)	—			(1,860		)	—			(1,860		)	(1,219		)	(1,860		)	(1,860		)
	Net income available to common stockholders	$	10,072		$	9,093		$	9,929		$	9,910		11,040			$	10,992		$	14,004		$	7,108
	Basic and diluted net income per share of common stock	$	0.33		$	0.43		$	0.27		$	0.47		$	0.29		$	0.52		$	0.37		$	0.26
	Basic weighted average common shares outstanding	30,105,939			20,561,032			36,880,410			20,570,616			36,883,002			20,571,478			36,886,619			27,297,600
	Diluted weighted average common shares outstanding	30,480,689			20,966,426			37,373,885			20,991,450			37,379,469			20,992,312			37,390,369			27,608,787
	Dividend declared per share of common stock	$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4		$	0.4

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Segment
Accounting Policies [Abstract]	'	'
Number of business segment	1	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Capitalized financing costs	$628	$678
Operating loss carryforward	1,400	'
Other Assets [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Capitalized financing costs	$628	$678

Fair_Value_Disclosure_Summariz

Fair Value Disclosure - Summarizes Levels in Fair Value Hierarchy of Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative instruments, net	$0	$155
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value, Net Asset (Liability)	191,448	278,733
Level 2 [Member] | Interest Rate Swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative instruments, net	'	-156
Level 2 [Member] | Interest Rate Cap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	1
Level 2 [Member] | AAA Commercial Mortage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	33,362	67,079
Level 2 [Member] | Portion at Fair Value Measurement [Member] | AAA Commercial Mortage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	158,086	138,248
Level 2 [Member] | Portion at Fair Value Measurement [Member] | Hilton Commercial Mortgage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	'	73,561
Estimated Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value, Net Asset (Liability)	191,448	278,733
Estimated Fair Value [Member] | Interest Rate Swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative instruments, net	'	-156
Estimated Fair Value [Member] | Interest Rate Cap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	1
Estimated Fair Value [Member] | AAA Commercial Mortage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	33,362	67,079
Estimated Fair Value [Member] | Portion at Fair Value Measurement [Member] | AAA Commercial Mortage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	158,086	138,248
Estimated Fair Value [Member] | Portion at Fair Value Measurement [Member] | Hilton Commercial Mortgage Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Aggregate purchase price of CMBS	'	$73,561

Debt_Securities_Additional_Inf

Debt Securities - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Jun. 30, 2012

Jun. 30, 2012

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Wells Fargo [Member]

CMBS - UBS [Member]

CMBS - Hilton [Member]

CMBS - Hilton [Member]

Wells Fargo [Member]

Schedule of Available-for-sale Securities [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Available-for-sale securities, face amount

$188,643

'

'

'

$273,343

'

'

'

$188,643

$273,343

'

'

$33,066

$65,410

'

$133,783

$74,854

'

Aggregate purchase price of CMBS

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

133,899

'

'

Payments for available-for-sale securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70,655

'

Borrowings to finance Hilton CMBS

202,033

'

'

'

225,158

'

'

'

202,033

225,158

'

'

'

'

'

'

'

49,459

Additional financing for Hilton CMBS

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

Amortized cost

190,178

'

'

'

273,713

'

'

'

190,178

273,713

'

137,423

34,232

67,109

'

'

'

'

Realized gains, net

0

0

0

0

0

0

0

262

0

262

0

262

'

'

'

'

'

'

Realized gains, gross

'

'

'

'

'

'

'

'

'

'

'

345

'

'

'

'

'

'

Realized gains, loss

'

'

'

'

'

'

'

'

'

'

'

83

'

'

'

'

'

'

Sale generated proceeds of borrowings

'

'

'

'

'

'

'

'

'

'

'

14,621

'

'

'

'

'

'

Sale generated proceeds after repayment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$123,064

'

'

'

Debt_Securities_Amortized_Cost

Debt Securities - Amortized Cost and Estimated Fair Value (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
In Thousands, unless otherwise specified			Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]	Commercial Mortgage Backed Securities [Member]
						Hilton Commercial Mortgage Backed Securities [Member]	Portion at Fair Value Measurement [Member]	Portion at Fair Value Measurement [Member]	Portion at Fair Value Measurement [Member]
								AAA Commercial Mortage Backed Securities [Member]	Hilton Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'	'	'	'	'
Face Amount	$188,643	$273,343	$33,066	$65,410	'	$74,854	$155,577	$134,694	$73,239
Amortized cost	190,178	273,713	34,232	67,109	137,423	'	155,946	136,354	70,250
Gross Unrealized Gain	2,313	5,621	0	249	'	'	2,313	2,061	3,311
Gross Unrealized Loss	-1,043	-446	-870	-279	'	'	-173	-167	0
Securities available-for-sale, at estimated fair value	$191,448	$278,888	$33,362	$67,079	'	'	$158,086	$138,248	$73,561

Debt_Securities_Overall_Statis

Debt Securities - Overall Statistics for Company's AAA-Rated CMBS Investments Calculated on Weighted Average Basis (Detail) (Commercial Mortgage Backed Securities [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	AAA-CCC Rated CMBS [Member]	AAA Rated CMBS [Member]
Schedule of Available-for-sale Securities [Line Items]	'	'
Coupon	5.80%	5.60%
Yield	5.30%	4.10%
Weighted Average Life	'3 years 1 month 6 days	'1 year 9 months 18 days

Debt_Securities_Percentage_Vin

Debt Securities - Percentage Vintage, Property Type, and Location of Collateral Securing Company's AAA-Rated CMBS Investments Calculated on Weighted Average Basis (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	100.00%	100.00%
Available-for-sale Securities [Member] | Vintage Concentration Risk [Member] | Vintage 2006 [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	3.00%	1.00%
Available-for-sale Securities [Member] | Vintage Concentration Risk [Member] | Vintage 2007 [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	97.00%	99.00%
Available-for-sale Securities [Member] | Product Concentration Risk [Member] | Office [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	35.50%	40.50%
Available-for-sale Securities [Member] | Product Concentration Risk [Member] | Retail [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	24.10%	23.20%
Available-for-sale Securities [Member] | Product Concentration Risk [Member] | Multifamily [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	13.70%	10.50%
Available-for-sale Securities [Member] | Product Concentration Risk [Member] | Hotel [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	12.70%	12.90%
Available-for-sale Securities [Member] | Product Concentration Risk [Member] | Other [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	14.00%	12.90%
Available-for-sale Securities [Member] | Geographic Concentration Risk [Member] | South Atlantic [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	23.40%	21.80%
Available-for-sale Securities [Member] | Geographic Concentration Risk [Member] | Middle Atlantic [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	22.80%	21.40%
Available-for-sale Securities [Member] | Geographic Concentration Risk [Member] | Pacific [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	17.60%	23.80%
Available-for-sale Securities [Member] | Geographic Concentration Risk [Member] | Other [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage Vintage	36.20%	33.00%

Commercial_Mortgage_Loan_Portf

Commercial Mortgage Loan Portfolio (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Office Condo [Member]

Office Condo [Member]

Mixed Use [Member]

Mixed Use [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Hotel - NY, NY [Member]

Hotel - NY, NY [Member]

Hotel - Silver Spring, MD [Member]

Hotel - Silver Spring, MD [Member]

Office Condo (Headquarters) - NY, NY [Member]

Office Condo (Headquarters) - NY, NY [Member]

Mixed Use - South Boston, MA [Member]

Mixed Use - South Boston, MA [Member]

Condo Conversion - NY, NY December 2012 [Member]

Condo Conversion - NY, NY December 2012 [Member]

Condo Conversion - NY, NY August 2013 [Member]

room

room

room

room

sqft

sqft

acre

acre

sqft

sqft

sqft

Mortgage Loans on Real Estate [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Original Face Amount

'

$164,000,000

$154,844,000

$32,000,000

$32,000,000

$26,000,000

$26,000,000

$28,000,000

$28,000,000

'

$23,844,000

$45,000,000

$45,000,000

$33,000,000

Current Face Amount

661,637,000

161,600,000

146,550,000

31,317,000

31,571,000

24,947,000

25,273,000

27,169,000

27,419,000

'

17,287,000

45,000,000

45,000,000

33,167,000

Carrying Value

'

$161,099,000

$142,921,000

$31,317,000

$31,571,000

$24,785,000

$25,273,000

$27,169,000

$27,419,000

'

$14,105,000

$44,867,000

$44,553,000

$32,961,000

Coupon rate of loan

'

8.82%

7.82%

8.25%

'

9.00%

'

8.00%

'

'

'

9.00%

'

9.67%

Property Size, Area

'

'

'

'

'

'

'

73,419

73,419

20

20

119,000

119,000

40,000

Property Size, Number of Units

'

'

'

151

151

263

263

'

'

'

'

'

'

'

Commercial_Mortgage_Loan_Portf1

Commercial Mortgage Loan Portfolio (Parenthetical) (Detail) (Commercial mortgage loans [Member], Condo Conversion [Member])	12 Months Ended
	Dec. 31, 2013
	option
Condo Conversion - NY, NY December 2012 [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Number of Options to Extend Loan Agreement	2
Debt Instrument, Option to Extend Loan Agreement, Term	'1 year
Condo Conversion - NY, NY August 2013 [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Debt Instrument, Option to Extend Loan Agreement, Term	'1 year

Commercial_Mortgage_Loans_Addi

Commercial Mortgage Loans - Additional Information (Detail) (USD $)	Jan. 31, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Apr. 30, 2012	Sep. 30, 2013	Dec. 31, 2012
	Master Repurchase Facility [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]	Commercial mortgage loans [Member]
	JP Morgan Chase [Member]			Hotel [Member]	Hotel [Member]	Hotel [Member]	Hotel [Member]	Mixed Use [Member]	Mixed Use [Member]
				Hotel - Silver Spring, MD [Member]	Hotel - Silver Spring, MD [Member]	Hotel - Silver Spring, MD [Member]	Hotel - Manhattan, NY [Member]	Mixed Use - South Boston, MA [Member]	Mixed Use - South Boston, MA [Member]
				room	room		Master Repurchase Facility [Member]	participation_interest	acre
							JP Morgan Chase [Member]	acre
							room
Mortgage Loans on Real Estate [Line Items]	'	'	'	'	'	'	'	'	'
Fees Received On Loan Transfer	'	'	'	'	'	$280,000	'	'	'
Senior Sub-Participation Interests	'	'	'	'	'	'	'	2	'
Property Size, Area	'	'	'	'	'	'	'	20	20
Mortgage Loans on Real Estate, Sub-Participation Percentage of Par	'	'	'	'	'	'	'	78.00%	'
Mortgage Loans on Real Estate, Sub-Participation Brokerage Fee	'	'	'	'	'	'	'	3.00%	'
Mortgage Loans on Real Estate, Internal Rate of Return	'	'	'	'	'	'	'	25.00%	'
Repayment of mortgage loan	'	164,000,000	154,844,000	26,000,000	26,000,000	'	24,000,000	'	23,844,000
Rate of Commercial Mortgage loan	'	'	'	'	'	'	'2 years	'	'
Property Size, Number of Units	'	'	'	263	263	'	155	'	'
Coupon rate of loan	'	8.82%	7.82%	9.00%	'	'	8.00%	'	'
Repayment of JP Morgan Facility	'	'	'	'	'	'	15,444,000	'	'
Company's master repurchase facility	$100,000,000	'	'	'	'	'	$100,000,000	'	'

Subordinate_Loan_Portfolio_Det

Subordinate Loan Portfolio (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Retail [Member]

Retail [Member]

Retail [Member]

Retail [Member]

Office [Member]

Office [Member]

Office [Member]

Office [Member]

Office [Member]

Ski Resort [Member]

Ski Resort [Member]

Ski Resort [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Mixed Use [Member]

Mixed Use [Member]

Mixed Use [Member]

Mixed Use [Member]

Mixed Use [Member]

Mixed Use [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Condo Construction [Member]

Multifamily Conversion [Member]

Multifamily Conversion [Member]

Warehouse [Member]

Healthcare [Member]

Senior Mezz - Retail - Various [Member]

Junior Mezz - Retail - Various [Member]

Retail Center - Virginia [Member]

Retail Center - Virginia [Member]

Office - Michigan [Member]

Office - Michigan [Member]

Office Complex - Missouri [Member]

Office Complex - Missouri [Member]

Office Condo - NY, NY [Member]

Ski Resort - California [Member]

Ski Resort - California [Member]

Ski Resort - California [Member]

Hotel - New York [Member]

Hotel - New York [Member]

Hotel - New York [Member]

Hotel - New York March 2014 [Member]

Hotel - New York March 2014 [Member]

Hotel Portfolio - Various [Member]

Hotel Portfolio - Various [Member]

Hotel Portfolio - Rochester, MN [Member]

Hotel Portfolio - New York [Member]

Hotel Portfolio - New York [Member]

Mixed Use - North Carolina [Member]

Mixed Use - North Carolina [Member]

Mixed Use - North Carolina [Member]

Mixed Use - Pittsburgh, PA [Member]

Mixed Use - Florida [Member]

Mixed Use - Various [Member]

Condo Conversion - NY, NY [Member]

Condo Conversion - NY, NY [Member]

Condo Conversion - NY, NY September 2015 [Member]

Condo Construction - NY, NY [Member]

Multifamily Conversion - NY, NY December 2014 [Member]

Multifamily Conversion - NY, NY June 2014 [Member]

Warehouse Portfolio - Various [Member]

Healthcare Portfolio - Various [Member]

Mortgage Loans on Real Estate [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Original Face Amount

'

$495,319,000

$245,875,000

$30,000,000

$20,000,000

$25,000,000

'

$9,000,000

$9,000,000

$10,000,000

$10,000,000

$14,000,000

$40,000,000

$40,000,000

$40,000,000

$15,000,000

$15,000,000

'

$15,000,000

'

$50,000,000

$50,000,000

$25,000,000

$25,000,000

'

$6,525,000

$6,525,000

'

$22,500,000

$50,000,000

$17,000,000

$35,000,000

$350,000

$294,000

$60,000,000

$18,000,000

$44,000,000

$32,000,000

$47,000,000

Current Face Amount

661,637,000

500,037,000

[1]

246,959,000

30,000,000

20,000,000

'

26,243,000

8,866,000

[1]

8,912,000

9,849,000

[1]

9,979,000

14,000,000

[1]

40,000,000

40,000,000

[1]

'

15,000,000

[1]

'

15,000,000

'

15,000,000

48,431,000

[1]

49,950,000

24,771,000

[1]

'

25,000,000

6,525,000

[1]

'

6,525,000

22,500,000

[1]

50,000,000

[1]

17,000,000

[1]

35,000,000

[1]

350,000

295,000

[1]

66,800,000

[1]

18,000,000

[1]

44,000,000

[1]

32,000,000

[1]

47,000,000

[1]

Carrying Value

'

$497,484,000

$246,246,000

$30,000,000

$20,000,000

$26,243,000

'

$8,866,000

[1]

$8,912,000

$9,849,000

[1]

$9,979,000

$13,565,000

[1]

'

$39,781,000

[1]

$39,831,000

$15,207,000

[1]

$15,013,000

'

$15,000,000

'

$48,397,000

[1]

$49,743,000

$24,771,000

[1]

$25,000,000

'

$6,525,000

[1]

$6,525,000

'

$22,342,000

[1]

$49,535,000

[1]

$16,805,000

[1]

$34,734,000

[1]

$0

$2,000

[1]

$66,340,000

[1]

$17,906,000

[1]

$43,859,000

[1]

$32,000,000

[1]

$47,000,000

[1]

Coupon rate of loan

'

11.60%

12.46%

'

'

'

'

13.00%

[1]

'

11.75%

[1]

'

11.25%

[1]

14.00%

14.00%

[1]

'

12.00%

[1]

'

'

'

'

11.07%

[1]

'

11.00%

[1]

'

'

11.10%

[1]

'

'

9.42%

[1]

10.42%

[1]

14.00%

[1]

9.00%

[1]

'

9.67%

[1]

13.25%

[1]

10.48%

[1]

12.25%

[1]

11.50%

[1]

11.15%

[1]

[1]

Subject to prior liens.

Subordinate_Loan_Portfolio_Par

Subordinate Loan Portfolio (Parenthetical) (Detail) (Subordinate Loans [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Hotel - New York [Member] | Hotel [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'1 year	'1 year
Condo Conversion - NY, NY [Member] | Condo Conversion [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'1 year	'1 year
Number of Options to Extend Loan Agreement	2	2
Unfunded Loan Commitments	'	34,650
Multifamily Conversion - NY, NY June 2014 [Member] | Multifamily Conversion [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'3 months	'
Condo Conversion - NY, NY September 2015 [Member] | Condo Conversion [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'1 year	'
Unfunded Loan Commitments	29,106	'
Hotel Portfolio - New York [Member] | Hotel [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'	'1 year
Number of Options to Extend Loan Agreement	'	3
Retail Center - Virginia [Member] | Retail [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'	'1 year
Number of Options to Extend Loan Agreement	'	2
Hotel - New York March 2014 [Member] | Hotel [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'	'1 year
Number of Options to Extend Loan Agreement	'	2
Hotel Portfolio - Various [Member] | Hotel [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt Instrument, Option to Extend Loan Agreement, Term	'	'1 year

Subordinate_Loans_Additional_I

Subordinate Loans - Additional Information (Detail) (Subordinate Loans [Member], USD $)	12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2013	Dec. 31, 2013	Oct. 31, 2013	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2013		Dec. 31, 2012
			Retail [Member]	Retail [Member]	Hotel [Member]	Hotel [Member]	Ski Resort - California [Member]	Ski Resort - California [Member]		Ski Resort - California [Member]
							Ski Resort [Member]	Ski Resort [Member]		Ski Resort [Member]
Mortgage Loans on Real Estate [Line Items]	'	'	'	'	'	'	'	'		'
Proceeds from Collection of Loans Receivable	'	'	$50,000,000	$25,000,000	$25,000,000	$15,000,000	'	'		'
Loan closed/ First mortgage	495,319,000	245,875,000	'	'	'	'	40,000,000	40,000,000		40,000,000
Amendment fee	'	'	'	'	'	'	0.50%	'		'
Exit fee	'	'	'	'	'	'	1.00%	'		'
Interest rate on the mezzanine loan minimum	'	'	'	'	'	'	0.75%	'		'
Coupon rate of loan	11.60%	12.46%	'	'	'	'	14.00%	14.00%	[1]	'
Proceeds from Collection of Loans Receivable, Yield Maintenance Payment	'	'	$2,500,000	'	'	$1,233,000	'	'		'
Mortgage Loans on Real Estate, Internal Rate of Return	'	'	15.00%	15.00%	12.00%	19.00%	'	'		'
[1]	Subject to prior liens.

Repurchase_Agreement_Additiona

Repurchase Agreement - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2011
In Thousands, unless otherwise specified			CDO Bond [Member]	Repurchase Facility [Member]	Repurchase Facility [Member]
			Securities	extension
Line of Credit Facility [Line Items]	'	'	'	'	'
Line of credit, amount outstanding	$202,033	$225,158	'	'	$47,439
Investment, Face Amount	'	'	$68,726	'	'
Advance rate on face amount	'	'	69.00%	'	'
Number of senior and subordinate commercial real estate debt positions and commercial real estate securities included in CDO	'	'	58	'	'
Interest rate for repurchase facility	'	'	'	13.00%	'
Current pay interest rate	'	'	'	10.00%	'
Accrual interest rate	'	'	'	3.00%	'
Expiration period	'	'	'	'18 months	'
Number of extensions	'	'	'	3	'
Option to extend, term	'	'	'	'6 months	'
Internal rate of return	'	'	17.00%	'	'

Borrowings_Weighted_Average_Ma

Borrowings - Weighted Average Maturities and Interest Rates of Borrowings (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 22, 2011

Feb. 28, 2013

Aug. 31, 2010

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Feb. 28, 2013

Apr. 30, 2012

Jan. 31, 2010

Dec. 31, 2013

In Thousands, unless otherwise specified

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

UBS [Member]

UBS [Member]

UBS [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

Collateral Pledged Type One [Member]

Collateral Pledged Type Two [Member]

Collateral Pledged Type Three [Member]

Collateral Pledged Type Four [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Balance

$202,033

$225,158

$202,033

$225,158

$47,751

$225,155

'

'

'

'

'

'

'

'

$133,899

$0

$20,383

$3

'

'

'

'

Weighted Average Remaining Maturity

'

'

'3 years 3 months 12 days

'1 year 1 month 6 days

'2 months 12 days

'1 year 1 month 6 days

[1]

'

'

'

'

'

'

'

'4 years

'4 years 8 months 12 days

[1]

'

'1 year 1 month 6 days

[1]

'5 days

'

'

'

'

Weighted Average Rate

'

'

2.40%

1.80%

1.20%

1.80%

[2]

'

'

'

'

'

'

'

'

2.80%

'

2.70%

2.70%

'

'

'

'

Basis point

'

'

'

'

'

'

1.50%

1.05%

1.25%

1.05%

1.25%

1.50%

2.35%

'

'

'

'

'

2.50%

2.50%

3.00%

2.50%

[1]

Assumes extension options are exercised.

[2]

Borrowings outstanding under the Wells Facility bear interest at a LIBOR plus 105, 125 basis points, 150 basis points or 235 basis points depending on the collateral pledged.

Borrowings_Additional_Informat

Borrowings - Additional Information (Detail) (Line of Credit [Member], USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2013

Feb. 28, 2013

Jan. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Feb. 28, 2013

Apr. 30, 2012

Jan. 31, 2010

Dec. 31, 2013

Feb. 28, 2013

Dec. 31, 2011

Aug. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Aug. 31, 2010

Dec. 22, 2011

Feb. 28, 2013

Aug. 31, 2010

Feb. 28, 2013

Jun. 30, 2012

Jan. 31, 2010

Aug. 31, 2010

Jan. 31, 2010

Aug. 31, 2010

UBS [Member]

UBS [Member]

UBS [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

JP Morgan Chase [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Six Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

extension

Commercial Mortgage Backed Securities [Member]

Financial Guarantee [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

JP Morgan Chase [Member]

Wells Fargo [Member]

JP Morgan Chase [Member]

Wells Fargo [Member]

Commercial Mortgage Backed Securities [Member]

Commercial Mortgage Backed Securities [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum borrowing under facility

'

'

$133,333,000

$133,899,000

'

'

$100,000,000

'

'

'

'

'

'

'

$506,000,000

$250,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration period

'3 years 3 months 12 days

'1 year 1 month 6 days

'4 years

'4 years 8 months 12 days

[1]

'

'

'

'1 year 1 month 6 days

[1]

'5 days

'

'

'

'

'

'

'

'2 months 12 days

'1 year 1 month 6 days

[1]

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Period of Potential Extension

'

'

'1 year

'

'

'

'

'

'

'

'

'

'

'

'

'1 year

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis point

'

'

'

'

1.55%

'

'

'

'

2.50%

2.50%

3.00%

2.50%

'

'

'

'

'

'

'

1.50%

1.05%

1.25%

1.75%

2.35%

'

'

'

'

Line of Credit Facility, Estimated Fair Value of Collateral Pledged Percentage

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

65.00%

85.00%

90.00%

90.00%

Line of Credit Facility, Margin of Cash Borrowed, Percentage

'

'

22.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit, Covenant, Minimum Net Asset Value

'

'

500,000,000

'

'

125,000,000

'

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit, Covenant, Maximum Debt to Tangible Net Worth Ratio

'

'

3

'

'

3

'

'

'

'

'

'

'

8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Threshold Amount for Margin Calls

'

'

'

'

'

0

250,000

'

'

'

'

'

'

'

'

250,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Loan Extension Fee Percentage

'

'

'

'

'

0.25%

'

'

'

'

'

'

'

'

'

0.25%

'

'

0.50%

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum Liquidity Percentage

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Consolidated Recourse Indebtedness

'

'

'

'

'

12,500,000

'

'

'

'

'

'

'

'

12,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum Net Income

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit, Number of Extensions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum Net Asset Value Percentage During Prior Quarter

'

'

'

'

'

'

'

'

'

'

'

'

'

75.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum Net Asset Value Percentage During Prior Year

'

'

'

'

'

'

'

'

'

'

'

'

'

65.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum Liquidity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Covenant, Minimum EBITDA to Interest Expense Ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

1.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit, Limited Guarantee Percentage Credit Facility

'

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantor Obligations, Maximum Exposure, Undiscounted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

37,500,000

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Additional Financing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$100,000,000

'

'

'

'

'

'

'

'

'

'

Interest rate spread

'

'

'

'

'

'

'

'

'

'

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Assumes extension options are exercised.

Borrowings_Remaining_Maturitie

Borrowings - Remaining Maturities of Borrowings (Detail) (Line of Credit [Member], USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Line of Credit Facility [Line Items]	'
Less than 1 year	$47,955
1 to 3 years	25,183
3 to 5 years	128,895
More than 5 years	0
Total	202,033
Wells Fargo [Member]	'
Line of Credit Facility [Line Items]	'
Less than 1 year	47,751
1 to 3 years	0
3 to 5 years	0
More than 5 years	0
Total	47,751
UBS [Member]	'
Line of Credit Facility [Line Items]	'
Less than 1 year	0	[1]
1 to 3 years	5,004	[1]
3 to 5 years	128,895	[1]
More than 5 years	0	[1]
Total	133,899	[1]
JP Morgan Chase [Member]	'
Line of Credit Facility [Line Items]	'
Less than 1 year	204	[1]
1 to 3 years	20,179	[1]
3 to 5 years	0	[1]
More than 5 years	0	[1]
Total	$20,383	[1]
[1]	Assumes extension options are exercised.

Borrowings_Summary_of_Outstand

Borrowings - Summary of Outstanding Balances, Maximum and Average Balances of Borrowings (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]	'	'
Line of credit, amount outstanding	$202,033	$225,158
Line of Credit [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Line of credit, amount outstanding	202,033	225,158
Wells Fargo [Member] | Line of Credit [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Line of credit, amount outstanding	47,751	225,155
Maximum Month-End Balance	225,156	469,147
Average Month-End Balance	168,747	283,100
UBS [Member] | Line of Credit [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Line of credit, amount outstanding	133,899	0
Maximum Month-End Balance	133,899	0
Average Month-End Balance	31,728	0
JP Morgan Chase [Member] | Line of Credit [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Line of credit, amount outstanding	20,383	3
Maximum Month-End Balance	20,383	68,720
Average Month-End Balance	$3,138	$37,461

Derivative_Instruments_Weighte

Derivative Instruments - Weighted Average Maturities and Interest Rates (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	$0	($156)
Derivative Liability, Fair Value, Gross Asset	0	1
Estimated Fair Value	-155	'
Interest Rate Swap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	0	-156
Derivative Liability, Fair Value, Gross Asset	0	0
Interest Rate Cap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	0	0
Derivative Liability, Fair Value, Gross Asset	0	1
Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Value	80,881	'
Derivative Liability, Fair Value, Gross Liability	-156	'
Derivative Financial Instruments, Liabilities [Member] | Interest Rate Cap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Value	203,248	'
Derivative Liability, Fair Value, Gross Asset	$1	'

Derivative_Instruments_Summary

Derivative Instruments - Summary of Amounts Recognized on Consolidated Statements of Operations Related to Company's Derivatives (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss on derivative instruments-unrealized	'	'	'	'	'	'	'	'	$155	$323	($865)
Total	-1	1	-2	0	-2	-87	-65	-417	-2	-572	-2,696
Interest Rate Swap [Member] | Gain (Loss) on Derivative Instruments [Member]	'	'	'	'	'	'	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss on derivative instruments-realized	'	'	'	'	'	'	'	'	157	895	1,831
Loss on derivative instruments-unrealized	'	'	'	'	'	'	'	'	156	510	763
Interest Rate Cap [Member] | Gain (Loss) on Derivative Instruments [Member]	'	'	'	'	'	'	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss on derivative instruments-unrealized	'	'	'	'	'	'	'	'	($1)	($187)	($1,628)

Derivative_Instruments_Summari

Derivative Instruments - Summarizes Gross Asset and Liability Amounts Related to Derivatives (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivative [Line Items]	'	'
Gross Amount of Assets Recognized as Liabilities	$0	$1
Gross Amounts of Offset in the Statement of Financial Position	0	-156
Net Amounts of Liabilities Presented in the Statement of Financial Position	0	-155
Interest Rate Swap [Member]	'	'
Derivative [Line Items]	'	'
Gross Amount of Assets Recognized as Liabilities	0	0
Gross Amounts of Offset in the Statement of Financial Position	0	-156
Net Amounts of Liabilities Presented in the Statement of Financial Position	0	-156
Interest Rate Cap [Member]	'	'
Derivative [Line Items]	'	'
Gross Amount of Assets Recognized as Liabilities	0	1
Gross Amounts of Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	$0	$1

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related Party Transaction [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Related party expenses	$2,627	$2,625	$2,600	$2,160	$2,040	$1,518	$1,292	$1,289	$10,012	$6,139	$4,728
Base management fees incurred but not yet paid	2,628	'	'	'	2,037	'	'	'	2,628	2,037	'
Limited Liability Company [Member]	'	'	'	'	'	'	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Rate of management fees	'	'	'	'	'	'	'	'	1.50%	'	'
Period of termination	'	'	'	'	'	'	'	'	'180 days	'	'
Period to be considered, for average annual base management fee	'	'	'	'	'	'	'	'	3	'	'
Limited Liability Company [Member] | Management Fees [Member]	'	'	'	'	'	'	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Related party expenses	'	'	'	'	'	'	'	'	10,012	6,139	4,728
Base management fees incurred but not yet paid	2,628	'	'	'	2,037	'	'	'	2,628	2,037	'
Limited Liability Company [Member] | Reimbursements [Member]	'	'	'	'	'	'	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Related party expenses	'	'	'	'	'	'	'	'	$745	$987	$802

ShareBased_Payments_Additional

Share-Based Payments - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 23, 2009

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

LTIP [Member]

Restricted Stock and Restricted Stock Units [Member]

Restricted Stock and Restricted Stock Units [Member]

Restricted Stock and Restricted Stock Units [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of issued and outstanding shares of common stock provides for grants of restricted common stock, restricted stock units and other equity-based awards

'

'

'

7.50%

'

'

'

'

'

'

'

'

'

Recognized stock-based compensation expense

$3,488,000

$3,624,000

$1,788,000

'

$3,488,000

$3,624,000

$1,788,000

'

'

'

'

'

'

Fair value of vested shares

'

'

'

'

'

'

'

293,000

717,000

663,000

2,854,000

1,916,000

792,000

Unrecognized stock-based compensation expense

'

'

'

'

'

'

'

562,000

'

'

2,351,000

'

'

Common stock, shares delivered

'

'

'

'

'

'

'

'

'

'

3,057

67,354

'

Stock units vested

'

'

'

'

'

'

'

'

'

'

5,000

112,084

'

Reduction of capital increase related to equity incentive plan

'

'

'

'

'

'

'

'

'

'

$31,000

$779,000

'

ShareBased_Payments_Summary_of

Share-Based Payments Summary of Grants, Exchanges and Forfeitures of Restricted Stock and RSUs (Detail) (LTIP [Member], USD $)

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Nov. 30, 2013

Apr. 30, 2013

Feb. 28, 2013

Aug. 31, 2012

Apr. 30, 2012

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2010

Sep. 30, 2013

Jul. 31, 2013

Jun. 30, 2013

31-May-13

Feb. 28, 2013

Oct. 31, 2012

Mar. 31, 2012

Feb. 29, 2012

Dec. 31, 2011

Aug. 31, 2011

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2010

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

RSU Vesting [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Forfeiture/Canceled

'

'

'

'

'

'

'

'

'

-5,000

-5,000

'

'

112,084

'

-1,875

-30,000

'

'

'

'

Grant

5,000

11,304

20,000

1,496

9,584

9,204

208,416

151,828

10,000

'

'

15,000

180,000

'

20,000

'

'

308,750

5,000

503,750

118,959

Estimated Fair Value on Grant Date, Exchange

$81,000

$200,000

$352,000

$25,000

$150,000

$150,000

'

'

$154,000

'

'

$264,000

$3,166,000

'

$310,000

'

'

$4,586,000

$82,000

'

'

ShareBased_Payments_Summary_of1

Share-Based Payments Summary of Restricted Stock and RSU Vesting Dates (Detail) (LTIP [Member])	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	268,847
January 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	96,255
March 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,667
April 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	3,342
July 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,157
July 2014 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	500
October 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,153
December 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	70,000
January 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,160
March 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,667
April 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,161
July 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
July 2015 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	500
October 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
December 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	70,009
January 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,360
April 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
July 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	417
October 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	416
Shares Vesting [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	35,088
Shares Vesting [Member] | January 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,920
Shares Vesting [Member] | March 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
Shares Vesting [Member] | April 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,925
Shares Vesting [Member] | July 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,157
Shares Vesting [Member] | July 2014 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	500
Shares Vesting [Member] | October 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,153
Shares Vesting [Member] | December 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,668
Shares Vesting [Member] | January 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,160
Shares Vesting [Member] | March 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
Shares Vesting [Member] | April 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	2,161
Shares Vesting [Member] | July 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
Shares Vesting [Member] | July 2015 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	500
Shares Vesting [Member] | October 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
Shares Vesting [Member] | December 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,668
Shares Vesting [Member] | January 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,360
Shares Vesting [Member] | April 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	1,361
Shares Vesting [Member] | July 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	417
Shares Vesting [Member] | October 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	416
RSU Vesting [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	233,759
RSU Vesting [Member] | January 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	93,335
RSU Vesting [Member] | March 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,667
RSU Vesting [Member] | April 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	417
RSU Vesting [Member] | July 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | July 2014 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | October 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | December 2014 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	63,332
RSU Vesting [Member] | January 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | March 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	6,667
RSU Vesting [Member] | April 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | July 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | July 2015 (2) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | October 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | December 2015 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	63,341
RSU Vesting [Member] | January 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | April 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | July 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0
RSU Vesting [Member] | October 2016 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares vesting	0

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

31-May-13

Mar. 31, 2013

Nov. 30, 2012

Oct. 31, 2012

Nov. 30, 2012

Jul. 31, 2013

Aug. 31, 2012

Aug. 31, 2012

Dec. 31, 2013

Aug. 31, 2012

In Thousands, except Share data, unless otherwise specified

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Follow-on public offering [Member]

Follow-on public offering [Member]

Follow-on public offering [Member]

Underwriters Option [Member]

July 2013 Repurchase Program [Member]

Public Offering [Member]

Public Offering [Member]

Public Offering Underwriters Option [Member]

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, shares authorized

450,000,000

450,000,000

'

'

'

'

'

'

'

'

'

'

Common stock, par value (in dollars per share)

$0.01

$0.01

'

$16.90

'

$16.81

$16.81

'

'

'

'

'

Preferred stock, shares authorized

50,000,000

50,000,000

'

'

'

'

'

'

'

'

'

'

Preferred stock, par value (in dollars per share)

$0.01

$0.01

'

'

'

'

'

'

'

'

'

'

Common stock shares issued

36,888,467

28,044,106

'

'

'

'

'

'

'

'

'

'

Common stock, shares outstanding

36,888,467

28,044,106

'

'

'

'

'

'

'

'

'

'

Preferred stock shares issued

3,450,000

3,450,000

'

'

'

'

'

'

'

'

'

'

Preferred stock, shares outstanding

3,450,000

3,450,000

'

'

'

'

'

'

'

'

'

'

Issuance of stock, Shares

'

'

'

8,805,000

'

7,000,000

404,640

'

'

3,450,000

'

'

Net proceeds from common offerings

'

'

'

$148,333

$124,066

'

'

'

'

'

'

'

Stock offering, authorized amount

'

'

100,000

'

'

'

'

'

'

'

'

'

Share Repurchase

'

'

'

'

'

'

'

50,000

'

'

'

'

Dividend rate of Series A Cumulative Redeemable Perpetual Preferred Stock

'

'

'

'

'

'

'

'

'

'

8.63%

'

Liquidation preference

'

'

'

'

'

'

'

'

'

$25

'

'

Shares issued to the underwriters option to purchase additional shares

'

'

'

'

'

'

'

'

'

'

'

450,000

Net proceeds from preferred offering

'

'

'

'

'

'

'

'

$83,199

'

'

'

Stockholders_Equity_Common_Sto

Stockholders' Equity - Common Stock (Detail) (USD $)

3 Months Ended

0 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Nov. 04, 2013

Jul. 31, 2013

2-May-13

Feb. 27, 2013

Nov. 02, 2012

Aug. 06, 2012

3-May-12

Feb. 28, 2012

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Amount

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

Stockholders_Equity_Preferred_

Stockholder's Equity - Preferred Stock (Detail) (Series A Preferred Stock [Member], USD $)	0 Months Ended
	Dec. 09, 2013	Sep. 16, 2013	Jun. 12, 2013	Mar. 15, 2013	Dec. 13, 2012	Sep. 13, 2012
Series A Preferred Stock [Member]	'	'	'	'	'	'
Class of Stock [Line Items]	'	'	'	'	'	'
Dividend Amount	$0.54	$0.54	$0.54	$0.54	$0.54	$0.44

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (KBCD Partnership [Member], Scenario, Forecast [Member])	Jun. 30, 2014	Jun. 30, 2014
In Thousands, unless otherwise specified	USD ($)	EUR (€)
Schedule of Equity Method Investments [Line Items]	'	'
Maximum limited partnership investment	$50,000	€ 38,000
Indirect ownership interest from limited partnership	21.00%	21.00%

Commitments_and_Contingencies_1

Commitments and Contingencies Commitments and Contingencies - Loan Commitments (Details) (Condo Conversion [Member], Subordinate Loans [Member], Condo Conversion - NY, NY September 2015 [Member], USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Condo Conversion [Member] | Subordinate Loans [Member] | Condo Conversion - NY, NY September 2015 [Member]	'
Mortgage Loans on Real Estate [Line Items]	'
Unfunded Loan Commitments	$29,106

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value of Company's Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Restricted cash	$30,127	$0
Carrying Value [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Cash and cash equivalents	20,096	108,619
Restricted cash	30,127	0
Borrowings under repurchase agreements	-202,033	-225,158
Carrying Value [Member] | Level 3 [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Commercial first mortgage loans	161,099	142,921
Subordinate loans	497,484	246,246
Repurchase agreements	0	6,598
Estimated Fair Value [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Cash and cash equivalents	20,096	108,619
Restricted cash	30,127	0
Borrowings under repurchase agreements	-202,148	-225,158
Estimated Fair Value [Member] | Level 3 [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Commercial first mortgage loans	164,405	150,144
Subordinate loans	503,267	250,520
Repurchase agreements	$0	$6,598

Net_Income_Loss_per_Share_Basi

Net Income (Loss) per Share - Basic and Diluted Net Income per Share of Common Stock Using Two-Class Method (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:	'	'	'	'	'	'	'	'	'	'	'
Net income	$15,864	$12,900	$11,789	$11,932	$8,968	$12,211	$9,910	$9,093	$52,485	$40,181	$25,882
Preferred dividends	'	'	'	'	'	'	'	'	-7,440	-3,079	0
Net income available to common stockholders	14,004	11,040	9,929	10,072	7,108	10,992	9,910	9,093	45,045	37,102	25,882
Dividends declared on common stock	'	'	'	'	'	'	'	'	-59,008	-35,899	-30,494
Dividends on participating securities	'	'	'	'	'	'	'	'	-798	-628	-431
Net income (loss) attributable to common stockholders	'	'	'	'	'	'	'	'	($14,761)	$575	($5,043)
Denominator:	'	'	'	'	'	'	'	'	'	'	'
Basic weighted average shares of common stock outstanding	36,886,619	36,883,002	36,880,410	30,105,939	27,297,600	20,571,478	20,570,616	20,561,032	35,212,211	22,259,386	18,840,954
Diluted weighted average shares of common stock outstanding	37,390,369	37,379,469	37,373,885	30,480,689	27,608,787	20,992,312	20,991,450	20,966,426	35,679,755	22,648,819	19,089,578
Basic and diluted net income (loss) per weighted average share of common stock	'	'	'	'	'	'	'	'	'	'	'
Distributable Earnings	'	'	'	'	'	'	'	'	$1.68	$1.61	$1.62
Undistributed income (loss)	'	'	'	'	'	'	'	'	($0.42)	$0.03	($0.27)
Basic and diluted net income (loss) per share of common stock (in dollars per share)	$0.37	$0.29	$0.27	$0.33	$0.26	$0.52	$0.47	$0.43	$1.26	$1.64	$1.35

Net_Income_Loss_Per_Share_Addi

Net Income (Loss) Per Share - Additional Information (Detail) (RSU Vesting [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2011
RSU Vesting [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Unvested RSUs	467,544	248,624

Summarized_Quarterly_Results_S

Summarized Quarterly Results - Schedule of Summarized Quarterly Results (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net interest income:	'	'	'	'	'	'	'	'	'	'	'
Interest income from securities	$3,633	$2,533	$3,014	$3,087	$3,120	$3,674	$3,230	$5,323	$12,267	$15,347	$25,323
Interest income from commercial mortgage loans	3,812	4,954	3,676	3,592	2,930	2,825	2,791	2,234	16,034	10,780	9,153
Interest income from subordinate loans	14,026	12,184	11,498	11,454	7,350	6,144	5,859	5,313	49,162	24,666	13,678
Interest income from repurchase agreements	0	0	0	2	366	2,361	2,000	1,559	0	6,286	4,764
Interest expense	-1,450	-885	-955	-1,068	-1,463	-1,768	-1,929	-3,242	-4,356	-8,402	-14,454
Net interest income	20,021	18,786	17,233	17,067	12,303	13,236	11,951	11,187	73,107	48,677	38,464
Operating expenses:	'	'	'	'	'	'	'	'	'	'	'
General and administrative expenses	-2,438	-1,793	-1,437	-1,895	-1,315	-2,430	-2,762	-2,036	-7,563	-8,543	-5,652
Management fees to related party	-2,627	-2,625	-2,600	-2,160	-2,040	-1,518	-1,292	-1,289	-10,012	-6,139	-4,728
Total operating expenses	-5,065	-4,418	-4,037	-4,055	-3,355	-3,948	-4,054	-3,325	-17,575	-14,682	-10,380
Interest income from cash balances	1	3	16	0	6	0	0	1	20	7	13
Realized loss on sale of security	0	0	0	0	0	0	0	262	0	262	0
Unrealized gain (loss) on securities	908	-1,472	-1,421	-1,080	16	3,010	2,078	1,385	-3,065	6,489	481
Gain (loss) on derivative instruments	-1	1	-2	0	-2	-87	-65	-417	-2	-572	-2,696
Net income	15,864	12,900	11,789	11,932	8,968	12,211	9,910	9,093	52,485	40,181	25,882
Preferred dividends	-1,860	-1,860	-1,860	-1,860	-1,860	-1,219	0	0	'	'	'
Net income available to common stockholders	$14,004	$11,040	$9,929	$10,072	$7,108	$10,992	$9,910	$9,093	$45,045	$37,102	$25,882
Basic and diluted net income per share of common stock (in dollars per share)	$0.37	$0.29	$0.27	$0.33	$0.26	$0.52	$0.47	$0.43	$1.26	$1.64	$1.35
Basic weighted average shares of common stock outstanding	36,886,619	36,883,002	36,880,410	30,105,939	27,297,600	20,571,478	20,570,616	20,561,032	35,212,211	22,259,386	18,840,954
Diluted weighted average shares of common stock outstanding	37,390,369	37,379,469	37,373,885	30,480,689	27,608,787	20,992,312	20,991,450	20,966,426	35,679,755	22,648,819	19,089,578
Dividend declared per share of common stock	$0.40	$0.40	$0.40	$0.40	$0.40	$0.40	$0.40	$0.40	'	'	'

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)

3 Months Ended

0 Months Ended

1 Months Ended

1 Months Ended

0 Months Ended

1 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 22, 2011

Feb. 28, 2013

Aug. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Oct. 31, 2013

Jun. 30, 2013

Feb. 26, 2014

Feb. 27, 2014

Feb. 27, 2014

Jan. 31, 2014

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Wells Fargo [Member]

Hotel [Member]

Hotel [Member]

Line of Credit [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

One Month LIBOR [Member]

Wells Fargo [Member]

Residential Condominium [Member]

Hotel [Member]

One Month LIBOR [Member]

Luxury Residential Condominium - Montgomery County, MD [Member]

unit

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis point

'

'

'

'

'

'

'

'

1.50%

1.05%

1.25%

'

'

'

'

'

'

'

0.80%

'

'

Original Face Amount

'

'

'

'

'

'

'

'

'

'

'

$164,000,000

$154,844,000

$495,319,000

$245,875,000

'

'

'

'

$80,000,000

'

Mortgage Loans on Real Estate, Funded Amount of Mortgages

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

'

Number of Units in Real Estate Property

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50

'

Rate of Commercial Mortgage loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 months

'

Debt Instrument Extension Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'6 months

'

Debt Instrument, Underwritten Loan to Net Sellout, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

68.00%

'

Mortgage Loans on Real Estate, Internal Rate of Return

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12.00%

19.00%

'

'

15.00%

14.00%

Dividend declared per share of common stock

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

$0.40

'

'

'

'

'

'

'

'

'

$0.40

'

'

'

Proceeds from Collection of Loans Receivable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$25,000,000

$15,000,000

'

'

'

$15,000,000

Schedule_IV_Mortgage_Loans_on_1

Schedule IV - Mortgage Loans on Real Estate (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Thousands, unless otherwise specified

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Hotel - NY, NY [Member]

Hotel - NY, NY [Member]

Mixed Use - Various [Member]

Office Condo (Headquarters) - NY, NY [Member]

Office Condo (Headquarters) - NY, NY [Member]

Office Condo (Headquarters) - NY, NY [Member]

Hotel - Silver Spring, MD [Member]

Hotel - Silver Spring, MD [Member]

Condo Conversion - NY, NY December 2012 [Member]

Condo Conversion - NY, NY December 2012 [Member]

Condo Conversion - NY, NY August 2013 [Member]

Office - Michigan [Member]

Office - Michigan [Member]

Ski Resort - California [Member]

Ski Resort - California [Member]

Ski Resort - California [Member]

Hotel - New York [Member]

Hotel - New York [Member]

Hotel - New York [Member]

Mixed Use - North Carolina [Member]

Mixed Use - North Carolina [Member]

Mixed Use - North Carolina [Member]

Office Complex - Missouri [Member]

Office Complex - Missouri [Member]

Hotel Portfolio - Various [Member]

Hotel Portfolio - Various [Member]

Condo Conversion - NY, NY [Member]

Condo Conversion - NY, NY [Member]

Condo Construction - NY, NY [Member]

Multifamily Conversion - NY, NY December 2014 [Member]

Hotel Portfolio - Rochester, MN [Member]

Warehouse Portfolio - Various [Member]

Multifamily Conversion - NY, NY June 2014 [Member]

Condo Conversion - NY, NY September 2015 [Member]

Mixed Use - Pittsburgh, PA [Member]

Healthcare Portfolio - Various [Member]

Mixed Use - Florida [Member]

Hotel [Member]

Hotel [Member]

Mixed Use [Member]

Office Condo [Member]

Office Condo [Member]

Office [Member]

Hotel [Member]

Hotel [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Office [Member]

Office [Member]

Ski Resort [Member]

Ski Resort [Member]

Ski Resort [Member]

Hotel [Member]

Hotel [Member]

Hotel [Member]

Mixed Use [Member]

Mixed Use [Member]

Mixed Use [Member]

Office [Member]

Office [Member]

Hotel [Member]

Hotel [Member]

Condo Conversion [Member]

Condo Conversion [Member]

Condo Construction [Member]

Multifamily Conversion [Member]

Hotel [Member]

Warehouse [Member]

Multifamily Conversion [Member]

Condo Conversion [Member]

Mixed Use [Member]

Healthcare [Member]

Mixed Use [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Commercial mortgage loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Subordinate Loans [Member]

Mortgage Loans on Real Estate [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Rate

'

'

'

8.82%

7.82%

11.60%

12.46%

8.25%

'

14.00%

[1]

8.00%

'

11.25%

[1]

9.00%

'

9.00%

'

9.67%

13.00%

[1]

'

14.00%

14.00%

[1]

'

12.00%

[1]

'

'

11.10%

[1]

'

'

11.75%

[1]

'

11.07%

[1]

'

9.00%

[1]

'

13.25%

[1]

10.48%

[1]

11.00%

[1]

11.50%

[1]

12.25%

[1]

9.67%

[1]

9.42%

[1]

11.15%

[1]

10.42%

[1]

Mortgage Loans on Real Estate, Periodic Payment Term

'

'

'

'

'

'

'

'30 years

'

'

'30 years

'

'

'25 years

'

'

'

'

'25 years

[1]

'

'

'

'

'

'

'

'

'

'

'30 years

[1]

'

'30 years

[1]

'

'

'

'

'

'30 years

[1]

'

'

'

'

'

'

Current Face Amount

$661,637

'

'

$161,600

$146,550

$500,037

[1]

$246,959

$31,317

$31,571

$17,000

[1]

$27,169

$27,419

$14,000

[1]

$24,947

$25,273

$45,000

$45,000

$33,167

$8,866

[1]

$8,912

$40,000

$40,000

[1]

'

$15,000

[1]

'

$15,000

$6,525

[1]

'

$6,525

$9,849

[1]

$9,979

$48,431

[1]

$49,950

$35,000

[1]

$350

$66,800

[1]

$18,000

[1]

$24,771

[1]

$32,000

[1]

$44,000

[1]

$295

[1]

$22,500

[1]

$47,000

[1]

$50,000

[1]

Loans, held for investment

'

'

'

161,099

142,921

497,484

246,246

31,317

31,571

16,805

[1]

27,169

27,419

13,565

[1]

24,785

25,273

44,867

44,553

32,961

8,866

[1]

8,912

'

39,781

[1]

39,831

15,207

[1]

15,013

'

6,525

[1]

6,525

'

9,849

[1]

9,979

48,397

[1]

49,743

34,734

[1]

0

66,340

[1]

17,906

[1]

24,771

[1]

32,000

[1]

43,859

[1]

2

[1]

22,342

[1]

47,000

[1]

49,535

[1]

Carrying amount of loans

'

'

'

161,099

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage Loans on Real Estate

$658,583

[2]

$389,167

$258,092

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Subject to prior liens.

[2]

The aggregate cost for federal income tax purposes is $658,583.

Schedule_IV_Mortgage_Loans_on_2

Schedule IV - Mortgage Loans on Real Estate (Parenthetical) (Detail) (USD $)	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Mortgage Loans on Real Estate [Abstract]	'		'	'
Mortgage Loans on Real Estate	$658,583	[1]	$389,167	$258,092
[1]	The aggregate cost for federal income tax purposes is $658,583.

Schedule_IV_Mortgage_Loans_on_3

Schedule IV - Mortgage Loans on Real Estate - Summary of Changes in Carrying Amounts of Mortgage Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Movement in Mortgage Loans on Real Estate [Roll Forward]	'		'
Balance at beginning of year	$389,167		$258,092
New mortgage loans	401,912		159,465
Collections of principal	-137,168		-31,408
Discount accretion	4,672		3,018
Balance at the close of year	$658,583	[1]	$389,167
[1]	The aggregate cost for federal income tax purposes is $658,583.