Share data in Millions, unless otherwise specified | LIBOR | First mortgage loans | First mortgage loans | Principal / Notional Amount | Principal / Notional Amount | Estimate of Fair Value Measurement | Carrying Value | Carrying Value | N-Star CDO I and Wakefield Portfolio | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Mortgage notes payable | Senior Mortgage | Senior Mortgage | Senior Mortgage | Mezzanine | Mezzanine | Mezzanine | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | CDO Bonds Payable | Securitization bonds payable | Securitization bonds payable | Securitization bonds payable | Securitization bonds payable | Securitization bonds payable | Securitization bonds payable | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Credit facility | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Senior Notes | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Exchangeable Debt | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Junior Subordinated Notes | Variable Interest Entity, Not Primary Beneficiary |
| | | | | | | | | LIBOR | | | Principal / Notional Amount | Carrying Value | Manufactured housing communities | Manufactured housing communities | Healthcare | Healthcare | Hotel | Hotel | Net lease | Net lease | Multifamily | Multifamily | Wakefield Portfolio | Wakefield Portfolio | Lancaster, OH | Lancaster, OH | Minnesota Portfolio | Minnesota Portfolio | Manufacturing Housing Portfolio 1 | Manufacturing Housing Portfolio 1 | Manufacturing Housing Portfolio 2 | Manufacturing Housing Portfolio 2 | Manufacturing Housing Portfolio 3 | Manufacturing Housing Portfolio 3 | Manufacturing Housing Portfolio 3 | Manufacturing Housing Portfolio 3 | LIBOR Plus 5.95% Non-recourse Note Payable, Due March 15 | LIBOR Plus 5.95% Non-recourse Note Payable, Due March 15 | 6.00% Non-recourse Note Payable, Due March 16 | 6.00% Non-recourse Note Payable, Due March 16 | LIBOR Plus 5.00% Non-recourse Note Payable, Due March 16 | LIBOR Plus 5.00% Non-recourse Note Payable, Due March 16 | 6.99% Non-recourse Note Payable, Due January 17 | 6.99% Non-recourse Note Payable, Due January 17 | 7.09% Non-recourse Note Payable, Due January 17 | 7.09% Non-recourse Note Payable, Due January 17 | 5.89% Non-recourse Note Payable, Due May 17 | 5.89% Non-recourse Note Payable, Due May 17 | LIBOR Plus 3.00% Non-recourse Note Payable, Due May 18 | LIBOR Plus 3.00% Non-recourse Note Payable, Due May 18 | LIBOR Plus 7.75% Percent Non-recourse Note Payable, Due July 21 | LIBOR Plus 7.75% Percent Non-recourse Note Payable, Due July 21 | LIBOR Plus 4.50% Non-recourse Note Payable, Due September 21 | LIBOR Plus 4.50% Non-recourse Note Payable, Due September 21 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | LIBOR Plus 3.91%, Non-recourse, Due December 2017 Through May 2019 | 6.41% Non-recourse Note Payable, Due January 15 | 6.41% Non-recourse Note Payable, Due January 15 | 5.85% Non-recourse Note Payable, Due January 15 | 5.85% Non-recourse Note Payable, Due January 15 | 6.00% Non-recourse Note Payable, Due January 15 | 6.00% Non-recourse Note Payable, Due January 15 | 5.37% Non-recourse Note Payable, Due October 15 | 5.37% Non-recourse Note Payable, Due October 15 | 5.85% Non-recourse Note Payable, Due February 16 | 5.85% Non-recourse Note Payable, Due February 16 | 5.68% Non-recourse Note Payable, Due April 16 | 5.68% Non-recourse Note Payable, Due April 16 | 6.22% Non-recourse Note Payable, Due July 16 | 6.22% Non-recourse Note Payable, Due July 16 | 6.17% Non-recourse Note Payable, Due October 16 | 6.17% Non-recourse Note Payable, Due October 16 | 6.06% Non-recourse Note Payable, Due February 17 | 6.06% Non-recourse Note Payable, Due February 17 | 5.95% Non-recourse Note Payable, Due March 17 | 5.95% Non-recourse Note Payable, Due March 17 | 5.63% Non-recourse Note Payable, Due April 17 | 5.63% Non-recourse Note Payable, Due April 17 | 6.21% Non-recourse Note Payable, Due April 17 | 6.21% Non-recourse Note Payable, Due April 17 | 5.16% Non-recourse Note Payable, Due September 17 | 5.16% Non-recourse Note Payable, Due September 17 | 6.48% Non-recourse Note Payable, Due December 17 | 6.48% Non-recourse Note Payable, Due December 17 | LIBOR Plus 2.15%, Non-recourse, Due July 2023 [Member] | LIBOR Plus 2.15%, Non-recourse, Due July 2023 [Member] | MF Properties 3.996 Due April 2023 | MF Properties 3.996 Due April 2023 | Multifamily Investment Property 1 Senior Loans | Multifamily Investment Property 1 Senior Loans | MF Properties 2 Senior Loans Maturing May 2023 | MF Properties 2 Senior Mortgage, July 2023 | Multifamily Investment Properties 2 Senior Loans Maturing July 2023 | Multifamily Investment Properties 2 Senior Loans Maturing July 2023 | LIBOR Plus 2.23%, Non-recourse, Due June 2019 | LIBOR Plus 2.23%, Non-recourse, Due June 2019 | LIBOR Plus 2.23%, Non-recourse, Due June 2019 | LIBOR Plus 6.98%, Recourse, Due June 2019 | LIBOR Plus 6.98%, Recourse, Due June 2019 | LIBOR Plus 6.98%, Recourse, Due June 2019 | | | Principal / Notional Amount | Carrying Value | N-Star I | N-Star I | N-Star III | N-Star III | N-Star V | N-Star IX | N-Star IX | | | Principal / Notional Amount | Carrying Value | Securitization 2012-1 | Securitization 2012-1 | | | Principal / Notional Amount | Estimate of Fair Value Measurement | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 1 | Loan Facility 2 | Loan Facility 2 | Loan Facility 2 | Loan Facility 2 | Loan Facility 2 | Loan Facility 2 | | Minimum | Maximum | Seven Point Five Zero Percent Senior Note | | | Principal / Notional Amount | Carrying Value | 7.25% Notes | 8.875% Notes | 5.375% Notes | | | Principal / Notional Amount | Carrying Value | 7.25% Notes | 7.25% Notes | 7.50% Notes | 7.50% Notes | 7.50% Notes | 8.875% Notes | 8.875% Notes | 8.875% Notes | 8.875% Notes | 8.875% Notes | 8.875% Notes | 5.375% Notes | 5.375% Notes | 5.375% Notes | 5.375% Notes | 5.375% Notes | 5.375% Notes | | | Principal / Notional Amount | Trust I | Trust I | Trust II | Trust II | Trust III | Trust III | Trust IV | Trust IV | Trust V | Trust V | Trust VI | Trust VI | Trust VII | Trust VII | Trust VIII | Trust VIII | NorthStar Realty Trust I, II, III, IV | NorthStar Realty Trust I, II, III, IV | NorthStar Realty Trust I, II, III, IV | Junior Subordinated Notes |