VARIABLE INTEREST ENTITIES RAI - OTHER VIE (VIEs not consolidated) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	$ 34,506	$ 30,923
Variable Interest Entity, Not Primary Beneficiary [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	6,292
Variable Interest Entity, Not Primary Beneficiary [Member] | RRE Opportunity REIT I [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	2,549
Variable Interest Entity, Not Primary Beneficiary [Member] | RRE Opportunity REIT II [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	1,849
Variable Interest Entity, Not Primary Beneficiary [Member] | Ischus Entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	210
Variable Interest Entity, Not Primary Beneficiary [Member] | Trapeza entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	1,009
Variable Interest Entity, Not Primary Beneficiary [Member] | RRE Global Opportunity Fund [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Maximum Exposure to Loss in Non-consolidated VIEs	675
Receivables from Managed Entities and Related Parties [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	1,859
Receivables from Managed Entities and Related Parties [Member] | RRE Opportunity REIT I [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	0
Receivables from Managed Entities and Related Parties [Member] | RRE Opportunity REIT II [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	1,649
Receivables from Managed Entities and Related Parties [Member] | Ischus Entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	210
Receivables from Managed Entities and Related Parties [Member] | Trapeza entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	0
Receivables from Managed Entities and Related Parties [Member] | RRE Global Opportunity Fund [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Loans and receivables from managed entities and related parties, net	0
Investments [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	4,433
Investments [Member] | RRE Opportunity REIT I [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	2,549
Investments [Member] | RRE Opportunity REIT II [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	200
Investments [Member] | Ischus Entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	0
Investments [Member] | Trapeza entities [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	1,009
Investments [Member] | RRE Global Opportunity Fund [Member]
Carrying amounts of assets of nonconsolidated VIEs and maximum exposure to loss associated with these VIEs [Abstract]
Investments	$ 675