TRANSACTIONS WITH AFFILIATES AND AFFILIATED ENTITIES - Schedule of Affiliate Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Due to Affiliate, Total		$ 12,398		$ 12,398		$ 57,424
Management fees		9,860	$ 5,124	23,357	$ 14,525
Incentive compensation		1,811	10,910	7,895	33,111
FIG LLC [Member]
Related Party Transaction [Line Items]
Management fees		3,224		3,224		1,710
Incentive compensation		7,895		7,895		54,334
Expense reimbursements and other		1,279		1,279		1,380
Due to Affiliate, Total		12,398		12,398		$ 57,424
Management fees		9,860	5,124	23,357	14,525
Incentive compensation		1,811	10,910	7,895	33,111
Expense reimbursements	[1]	125	125	375	375
Total payments to affiliate		$ 11,796	$ 16,159	$ 31,627	$ 48,011

[1] Included in General and Administrative Expenses in the Condensed Consolidated Statements of Income.