Subsequent Events	12 Months Ended
Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Investment activity. In January 2015, the Company closed a £35,000 (approximately $52,000) mezzanine loan secured by a portfolio of 44 senior housing facilities located throughout the United Kingdom. The five-year, floating-rate mezzanine loan is part of a £223,800 whole loan, which includes a £164,100 first mortgage loan and a £59,700 mezzanine loan. The remaining £24,700 of the mezzanine loan was acquired by investment funds affiliated with Apollo Global Management, LLC. The mezzanine loan has an appraised loan-to-value of 70% and was underwritten to generate an IRR of approximately 10%. In February 2015, the Company closed a $20,000 mezzanine loan secured by a 488-key full service hotel located in Burbank, California. The five-year, fixed rate mezzanine loan is part of a $90,000 financing which consists of a $70,000 first mortgage loan and the Company's $20,000 mezzanine loan. The mezzanine loan has an appraised loan-to-value of 74% and has been underwritten to generate an IRR of approximately 11%. In February 2015, the Company closed a $92,500 ($72,500 of which was funded at closing) first mortgage loan for the predevelopment of a mixed-use multifamily and retail development aggregating approximately 330,000 square feet in downtown Brooklyn, New York. The two-year, floating-rate first mortgage loan has an appraised LTV of 57% and has been underwritten to generate an IRR of approximately 21% on a levered basis. During the first quarter of 2015, the Company funded an additional investment of €3,331 (or $3,929) related to its investment in Champ LP. Additionally, the Company funded an additional investments of $3,000 related to its investment in floating rate first mortgage loan for the development of a 50-unit luxury residential condominium in Montgomery County, Maryland and $4,194 related to its investment in a $82,500 mezzanine loan for the development of a mixed-use property on the Upper West Side neighborhood of New York City. In February 2015, the Company sold approximately 48% of its ownership interest in Champ LP at cost to an account managed by Apollo for approximately $20,794, reducing its unfunded commitment to Champ LP to €3,229. Through its interest in Champ LP, the Company now holds an indirect ownership interest of approximately 11% in Bremer Kreditbank AG, which operates under the name BKB Bank. The Company together with certain other affiliated investors and unaffiliated third party investors, in aggregate, own 100% of BKB Bank. Repurchase Facilities. On January 26, 2015, the Company, through an indirect wholly-owned subsidiary, entered into a repurchase agreement with Goldman Sachs Bank USA (the “Goldman Loan”). The Goldman Loan provides for a purchase price of $52,524 and a repurchase date of the earliest of: (1) April 30, 2019, (2) an early repurchase date as a result of repayment or sale of the purchased loan, or (3) an accelerated repurchase date as a result of certain events of default. Subject to the terms and conditions thereof, the Goldman Loan provides for the purchase and sale of certain participation interests in a mortgage loan secured by single-family and condominium properties. Prior to an event of default, amounts borrowed under the Goldman Loan bear interest at a spread of 3.5% plus one-month LIBOR. In addition, the Goldman Loan provides that margin calls may occur during the continuance of certain credit events if the market value of the mortgaged properties drop below an agreed upon percentage. The Goldman Loan contains affirmative and negative covenants and provisions regarding events of default that are normal and customary for similar repurchase agreements. The Company has agreed to the following restrictive covenants, among others: (1) continuing to operate in a manner that allows the Company to qualify as a REIT and (2) financial covenants, including (A) a minimum consolidated tangible net worth covenant ($750,000), (B) maximum total indebtedness to consolidated tangible net worth (3:1), (C) minimum liquidity ($15,000), (D) minimum sum of (i) cash liquidity and (ii) “near cash liquidity” (5.0% of the Company’s total recourse indebtedness), (E) minimum net income (one U.S. dollar during any four consecutive fiscal quarters) and (F) a minimum ratio of EBITDA to interest expense (1.5 to 1.0). The Company has also agreed to provide a guarantee of the obligations under the Goldman Loan. On January 29, 2015, the Company, through indirect wholly-owned subsidiaries, entered into a Fourth Amended and Restated Master Repurchase Agreement (the “Amended and Restated JPMorgan Facility”) with JPMorgan Chase Bank, National Association. The Amended and Restated JPMorgan Facility provides for a maximum aggregate purchase price of $300,000 and has a two-year term plus a one-year extension option, exercisable at the option of the Sellers, subject to satisfaction of certain conditions. Subject to the terms and conditions thereof, the Amended and Restated JPMorgan Facility provides for the purchase, sale and repurchase of eligible senior commercial or multifamily mortgage loans, junior commercial or multifamily mortgage loans, mezzanine loans and participation interests therein that are secured by properties located in the United States, England or Wales. Amounts borrowed under the Amended and Restated JPMorgan Facility bear interest at spreads ranging from 2.25% to 4.75% over one-month LIBOR. Maximum advance rates under the Amended and Restated JPMorgan Facility range from 25% to 80% on the estimated fair value of the pledged collateral depending on its loan-to-value ratio. Margin calls may occur any time the aggregate repurchase price exceeds the agreed upon advance rate multiplied by the market value of the assets by more than $250. The Amended and Restated JPMorgan Facility contains affirmative and negative covenants and provisions regarding events of default that are normal and customary for similar repurchase facilities. The Company has agreed to the following restrictive covenants, among others: (1) continuing to operate in a manner that allows the Company to qualify as a REIT and (2) financial covenants, including (A) a minimum consolidated tangible net worth covenant ($750,000 plus 75% of the net cash proceeds of any equity issuance by the Company), (B) maximum total indebtedness to consolidated tangible net worth (3:1), or (C) minimum liquidity (the greater of 5% of the Company’s total recourse indebtedness or $15,000). The Company has agreed to provide a limited guarantee of the obligations under the Amended and Restated JPMorgan Facility. Dividends. On February 25, 2015, the Company’s board of directors declared a dividend of $0.44 per share of common stock which is payable on April 15, 2015 to common stockholders of record on March 31, 2015. Management Agreement. Following a meeting by the Company’s independent directors in February 2015, 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.

Subsequent Events

Investment activity. In January 2015, the Company closed a £35,000 (approximately $52,000) mezzanine loan secured by a portfolio of 44 senior housing facilities located throughout the United Kingdom. The five-year, floating-rate mezzanine loan is part of a £223,800 whole loan, which includes a £164,100 first mortgage loan and a £59,700 mezzanine loan. The remaining £24,700 of the mezzanine loan was acquired by investment funds affiliated with Apollo Global Management, LLC. The mezzanine loan has an appraised loan-to-value of 70% and was underwritten to generate an IRR of approximately 10%.

In February 2015, the Company closed a $20,000 mezzanine loan secured by a 488-key full service hotel located in Burbank, California. The five-year, fixed rate mezzanine loan is part of a $90,000 financing which consists of a $70,000 first mortgage loan and the Company's $20,000 mezzanine loan. The mezzanine loan has an appraised loan-to-value of 74% and has been underwritten to generate an IRR of approximately 11%.

In February 2015, the Company closed a $92,500 ($72,500 of which was funded at closing) first mortgage loan for the predevelopment of a mixed-use multifamily and retail development aggregating approximately 330,000 square feet in downtown Brooklyn, New York. The two-year, floating-rate first mortgage loan has an appraised LTV of 57% and has been underwritten to generate an IRR of approximately 21% on a levered basis.

During the first quarter of 2015, the Company funded an additional investment of €3,331 (or $3,929) related to its investment in Champ LP. Additionally, the Company funded an additional investments of $3,000 related to its investment in floating rate first mortgage loan for the development of a 50-unit luxury residential condominium in Montgomery County, Maryland and $4,194 related to its investment in a $82,500 mezzanine loan for the development of a mixed-use property on the Upper West Side neighborhood of New York City.

In February 2015, the Company sold approximately 48% of its ownership interest in Champ LP at cost to an account managed by Apollo for approximately $20,794, reducing its unfunded commitment to Champ LP to €3,229. Through its interest in Champ LP, the Company now holds an indirect ownership interest of approximately 11% in Bremer Kreditbank AG, which operates under the name BKB Bank. The Company together with certain other affiliated investors and unaffiliated third party investors, in aggregate, own 100% of BKB Bank.

Repurchase Facilities. On January 26, 2015, the Company, through an indirect wholly-owned subsidiary, entered into a repurchase agreement with Goldman Sachs Bank USA (the “Goldman Loan”). The Goldman Loan provides for a purchase price of $52,524 and a repurchase date of the earliest of: (1) April 30, 2019, (2) an early repurchase date as a result of repayment or sale of the purchased loan, or (3) an accelerated repurchase date as a result of certain events of default. Subject to the terms and conditions thereof, the Goldman Loan provides for the purchase and sale of certain participation interests in a mortgage loan secured by single-family and condominium properties. Prior to an event of default, amounts borrowed under the Goldman Loan bear interest at a spread of 3.5% plus one-month LIBOR. In addition, the Goldman Loan provides that margin calls may occur during the continuance of certain credit events if the market value of the mortgaged properties drop below an agreed upon percentage. The Goldman Loan contains affirmative and negative covenants and provisions regarding events of default that are normal and customary for similar repurchase agreements. The Company has agreed to the following restrictive covenants, among others: (1) continuing to operate in a manner that allows the Company to qualify as a REIT and (2) financial covenants, including (A) a minimum consolidated tangible net worth covenant ($750,000), (B) maximum total indebtedness to consolidated tangible net worth (3:1), (C) minimum liquidity ($15,000), (D) minimum sum of (i) cash liquidity and (ii) “near cash liquidity” (5.0% of the Company’s total recourse indebtedness), (E) minimum net income (one U.S. dollar during any four consecutive fiscal quarters) and (F) a minimum ratio of EBITDA to interest expense (1.5 to 1.0). The Company has also agreed to provide a guarantee of the obligations under the Goldman Loan.

On January 29, 2015, the Company, through indirect wholly-owned subsidiaries, entered into a Fourth Amended and Restated Master Repurchase Agreement (the “Amended and Restated JPMorgan Facility”) with JPMorgan Chase Bank, National Association. The Amended and Restated JPMorgan Facility provides for a maximum aggregate purchase price of $300,000 and has a two-year term plus a one-year extension option, exercisable at the option of the Sellers, subject to satisfaction of certain conditions. Subject to the terms and conditions thereof, the Amended and Restated JPMorgan Facility provides for the purchase, sale and repurchase of eligible senior commercial or multifamily mortgage loans, junior commercial or multifamily mortgage loans, mezzanine loans and participation interests therein that are secured by properties located in the United States, England or Wales. Amounts borrowed under the Amended and Restated JPMorgan Facility bear interest at spreads ranging from 2.25% to 4.75% over one-month LIBOR. Maximum advance rates under the Amended and Restated JPMorgan Facility range from 25% to 80% on the estimated fair value of the pledged collateral depending on its loan-to-value ratio. Margin calls may occur any time the aggregate repurchase price exceeds the agreed upon advance rate multiplied by the market value of the assets by more than $250. The Amended and Restated JPMorgan Facility contains affirmative and negative covenants and provisions regarding events of default that are normal and customary for similar repurchase facilities. The Company has agreed to the following restrictive covenants, among others: (1) continuing to operate in a manner that allows the Company to qualify as a REIT and (2) financial covenants, including (A) a minimum consolidated tangible net worth covenant ($750,000 plus 75% of the net cash proceeds of any equity issuance by the Company), (B) maximum total indebtedness to consolidated tangible net worth (3:1), or (C) minimum liquidity (the greater of 5% of the Company’s total recourse indebtedness or $15,000). The Company has agreed to provide a limited guarantee of the obligations under the Amended and Restated JPMorgan Facility.

Dividends. On February 25, 2015, the Company’s board of directors declared a dividend of $0.44 per share of common stock which is payable on April 15, 2015 to common stockholders of record on March 31, 2015.

Management Agreement. Following a meeting by the Company’s independent directors in February 2015, 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.