Quarterly report pursuant to Section 13 or 15(d)

Non-Controlling Interests - Summary Of Non-controlling Interests in Consolidated Entities (Detail)

v3.5.0.2
Non-Controlling Interests - Summary Of Non-controlling Interests in Consolidated Entities (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Noncontrolling Interest [Line Items]          
NCI equity share     $ 50,539   $ 32,882
Net loss attributed to non-controlling interests $ (3,975) $ (1,694) (12,324) $ (2,416) (5,455)
Non-controlling interests in consolidated entities 38,215   38,215   27,427
Avenue [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     (494)   6
Net loss attributed to non-controlling interests (47) (367) (231) (401) (567)
Non-controlling interests in consolidated entities (725)   (725)   (561)
Coronado SO Co, Inc [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     (217)   23
Net loss attributed to non-controlling interests (4) (7) (14) (237) (240)
Non-controlling interests in consolidated entities (231)   (231)   (217)
Mustang Therapeutics, Inc [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     1,337   14
Net loss attributed to non-controlling interests (204) (54) (363) (321) (373)
Non-controlling interests in consolidated entities 974   974   (359)
Checkpoint Therapeutics, Inc [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     33,004   32,760
Net loss attributed to non-controlling interests (3,254) [1] (977) (10,767) [1] (1,168) (3,855)
Non-controlling interests in consolidated entities 22,237   22,237   28,905
JMC [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     (277)   79
Net loss attributed to non-controlling interests (104) $ (289) (333) $ (289) (420)
Non-controlling interests in consolidated entities (610)   (610)   $ (341)
Helocyte [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     (531)    
Net loss attributed to non-controlling interests (362)   (616)    
Non-controlling interests in consolidated entities (1,147)   (1,147)    
National Holdings [Member]          
Noncontrolling Interest [Line Items]          
NCI equity share     17,717    
Net loss attributed to non-controlling interests     0    
Non-controlling interests in consolidated entities $ 17,717   $ 17,717    
[1] Checkpoint is consolidated with Fortress’ operations because Fortress maintains voting control through its ownership of Checkpoint’s Class A Common Shares which provide super-majority voting rights.