Debt - Schedule of Secured Debt (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended | |
Nov. 30, 2018EUR (€) | Nov. 30, 2017EUR (€) | Nov. 30, 2016EUR (€) | Dec. 31, 2015USD ($) | Mar. 31, 2016USD ($)PropertyExtension_OptionDebt | Dec. 31, 2015USD ($)Property | Jan. 31, 2016 |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | $ 3,313,550 | $ 3,332,272 | $ 3,313,550 | |
Number of Properties | Property | | | | | 24,000 | 62 | |
Seller-Provided Financing | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Interest Rate | | | | | 0.00% | | |
First Mortgage | Secured Debt, Maturity January 2019 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 94,000 | $ 94,000 | $ 94,000 | |
Cap interest rate | | | | | 3.00% | | |
First Mortgage | Secured Debt, Maturity January 2019 [Member] | Real Estate Held-for-Sale | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | | $ 23,600 | | |
First Mortgage | Secured Debt, Maturity January 2019 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 4.65% | | |
First Mortgage | Secured Debt, Maturing July 2018 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 13,500 | $ 13,500 | 13,500 | |
Facility extension term | | | | | 1 year | | |
Debt instrument term extension option | Extension_Option | | | | | 2 | | |
First Mortgage | Secured Debt, Maturing July 2018 | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.65% | | |
First Mortgage | Secured Debt, Maturing January 2024 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 88,000 | $ 87,782 | 88,000 | |
Interest Rate | | | | | 4.84% | | |
First Mortgage | Secured Debt, Maturing August 2018 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 88,121 | $ 85,873 | 88,121 | |
Facility extension term | | | | | 1 year | | |
Cap interest rate | | | | | 2.25% | | |
Debt instrument term extension option | Extension_Option | | | | | 2 | | |
First Mortgage | Secured Debt, Maturing August 2018 [Member] | Real Estate Held-for-Sale | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | | $ 600 | | |
First Mortgage | Secured Debt, Maturing August 2018 [Member] | Three-Month GBP LIBOR [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.50% | | |
First Mortgage | Secured Debt, Fixed Rate, Maturing November 2018 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 79,133 | $ 83,739 | 79,133 | |
Imputed interest rate | | | | | 4.02% | | |
Interest Rate | | | | | 4.02% | | |
First Mortgage | Secured Debt, Fixed Rate, Maturing November 2018 [Member] | Scenario, Forecast | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Principal payments | € | € 27,562,000 | € 35,437,500 | € 15,750,000 | | | | |
First Mortgage | Secured Debt, Maturing November 2018 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 236,911 | $ 230,866 | $ 236,911 | |
Basis spread on variable rate | | | | | | 2.75% | |
Imputed interest rate | | | | | | | 3.28% |
Facility extension term | | | | | 1 year | | |
Cap interest rate | | | | | 2.25% | | |
Debt instrument term extension option | Extension_Option | | | | | 2 | | |
First Mortgage | Secured Debt, Maturing November 2018 | Real Estate Held-for-Sale | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 4,100 | $ 4,200 | $ 4,100 | |
First Mortgage | Secured Debt, Maturing November 2018 | Three-Month GBP LIBOR [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.28% | | |
First Mortgage | Secured Debt, Maturing January 2021 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 0 | $ 51,360 | 0 | |
First Mortgage | Secured Debt, Maturing January 2021 [Member] | Three-Month Euribor | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.00% | | |
Cap interest rate | | | | | 1.50% | | |
First Mortgage | Secured Debt, Maturing June 2022 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 25,540 | $ 26,623 | 25,540 | |
First Mortgage | Secured Debt, Maturing June 2022 | Three-Month Euribor | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.80% | | |
First Mortgage | Secured Debt, Maturing December 2019 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | $ 917,469 | $ 894,740 | 917,469 | |
Facility extension term | | | | 1 year | | | |
Debt instrument term extension option | Extension_Option | | | | | 3 | | |
First Mortgage | Secured Debt, Maturing December 2019 | Real Estate Held-for-Sale | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | $ 4,900 | $ 3,700 | 4,900 | |
First Mortgage | Secured Debt, Maturing December 2019 | LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | 2.50% | | | |
First Mortgage | Secured Debt, Maturing December 2019 | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.25% | | |
Cap interest rate | | | | | 3.00% | | |
First Mortgage | Secured Debt, Maturing August 2025 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | $ 165,750 | $ 165,750 | 165,750 | |
Interest Rate | | | | | 3.80% | | |
First Mortgage | Secured Debt, Maturing April 2028 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 0 | $ 93,450 | 0 | |
Interest Rate | | | | | 4.04% | | |
First Mortgage | Secured Debt, Maturing December 2029 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 120,947 | $ 125,085 | 120,947 | |
Interest Rate | | | | | 2.72% | | |
First Mortgage | Secured Debt, Maturing December 2029 | SWITZERLAND | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Number of Properties | Property | | | | | 2 | | |
First Mortgage | Secured Debt, Maturing February 2020 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 0 | $ 13,642 | 0 | |
First Mortgage | Secured Debt, Maturing February 2020 [Member] | Three-Month GBP LIBOR [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.35% | | |
First Mortgage | Secured Debt, Maturing November 2022 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 17,050 | $ 17,867 | 17,050 | |
Interest Rate | | | | | 1.89% | | |
Secured Debt | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 2,454,886 | $ 2,506,613 | 2,454,886 | |
Secured Debt | Minimum | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Principal curtailment, percentage of net cash flow from the underling loan portfolio | | | | | 65.00% | | |
Secured Debt | Maximum | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Principal curtailment, percentage of net cash flow from the underling loan portfolio | | | | | 80.00% | | |
Secured Debt | Secured Debt, Maturity April 2016, One [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 23,123 | $ 22,549 | 23,123 | |
Secured Debt | Secured Debt, Maturity April 2016, One [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.75% | | |
Secured Debt | Secured Debt, Maturing April 2016, Two [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 10,965 | $ 10,002 | 10,965 | |
Secured Debt | Secured Debt, Maturing April 2016, Two [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.75% | | |
Secured Debt | Secured Debt, Maturing June 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 5,869 | $ 3,448 | 5,869 | |
Secured Debt | Secured Debt, Maturing June 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 4.00% | | |
Secured Debt | Secured Debt, Maturing August 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 8,579 | $ 7,446 | 8,579 | |
Secured Debt | Secured Debt, Maturing August 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.75% | | |
Secured Debt | Secured Debt, September 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 4,351 | $ 3,856 | 4,351 | |
Secured Debt | Secured Debt, September 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.25% | | |
Secured Debt | Secured Debt, Maturing December 2017 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 73,543 | $ 62,401 | 73,543 | |
Secured Debt | Secured Debt, Maturing December 2017 | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.85% | | |
Secured Debt | Secured Debt Residential, Maturing June 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 10,314 | $ 10,268 | 10,314 | |
Secured Debt | Secured Debt Residential, Maturing June 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 3.75% | | |
Secured Debt | Repurchase Facility, Maturing February 2017 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 48,198 | $ 48,198 | 48,198 | |
Maximum principal amount of repurchase facility | | | | | $ 150,000 | | |
Secured Debt | Repurchase Facility, Maturing February 2017 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.50% | | |
Secured Debt | Repurchase Facility, Maturing April 2018 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 114,433 | $ 131,328 | 114,433 | |
Facility extension term | | | | | 1 year | | |
Secured Debt | Repurchase Facility, Maturing April 2018 | One-Month LIBOR | Minimum | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.50% | | |
Secured Debt | Repurchase Facility, Maturing April 2018 | One-Month LIBOR | Maximum | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.75% | | |
Revolving Credit Facility | Facility Maturing July 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 23,730 | $ 0 | 23,730 | |
Revolving Credit Facility | Facility Maturing July 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 2.25% | | |
Revolving Credit Facility | Facility Maturing September 2016 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 104,400 | $ 29,400 | 104,400 | |
Revolving Credit Facility | Facility Maturing September 2016 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Basis spread on variable rate | | | | | 1.60% | | |
Commercial Mortgage Backed Securities | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 815,681 | $ 783,129 | 815,681 | |
Commercial Mortgage Backed Securities | Minimum | Colony Mortgage Capital Series 2014-FL1, Ltd | Loans held for investment, net | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Initial terms on loans receivable | | | | | 2 years | | |
Commercial Mortgage Backed Securities | Maximum | Colony Mortgage Capital Series 2014-FL1, Ltd | Loans held for investment, net | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Initial terms on loans receivable | | | | | 3 years | | |
Commercial Mortgage Backed Securities | First Mortgage | Minimum | MF 2014-1 | Loans held for investment, net | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Initial terms on loans receivable | | | | | 1 year | | |
Commercial Mortgage Backed Securities | First Mortgage | Maximum | MF 2014-1 | Loans held for investment, net | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Initial terms on loans receivable | | | | | 24 years | | |
Commercial Mortgage Backed Securities | CMBS, Maturing September 2032 | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 340,350 | $ 340,350 | 340,350 | |
Basis spread on variable rate | | | | | 2.36% | | |
Commercial Mortgage Backed Securities | Commercial Mortgage Backed Securitization Debt, Maturity April 2031 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 126,248 | $ 105,548 | 126,248 | |
Basis spread on variable rate | | | | | 1.78% | | |
Commercial Mortgage Backed Securities | Commercial Mortgage Backed Securitization Debt, Maturity November 2031 [Member] | One-Month LIBOR | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 203,734 | $ 203,734 | 203,734 | |
Basis spread on variable rate | | | | | 2.01% | | |
Commercial Mortgage Backed Securities | CMBS, First Mortgage Portfolio | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 145,349 | $ 133,497 | 145,349 | |
Interest Rate | | | | | 2.54% | | |
Loans Payable | Bond payable, Maturing June 2025 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | 180,960 | $ 193,440 | 180,960 | |
Interest Rate | | | | | 3.91% | | |
Notes Payable | Promissory Note Maturing December 2025 [Member] | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Secured debt | | | | $ 42,983 | $ 42,530 | $ 42,983 | |
Interest Rate | | | | | 5.02% | | |
Number of secured debt | Debt | | | | | 2 | | |
Weighted average interest rate | | | | | 5.02% | | |
Partial Recourse Debt [Member] | Repurchase Facility, Maturing April 2018 | | | | | | | |
Debt Instrument [Line Items] | | | | | | | |
Maximum principal amount of repurchase facility | | | | | $ 250,000 | | |