Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.2.0.727
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
 1 Months Ended 2 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 12 Months Ended 16 Months Ended
Oct. 17, 2014
USD ($)
employee
claim
Oct. 31, 2011
subsidiary
Apr. 30, 2015
plaintiffs
Jan. 31, 2015
USD ($)
employee
claim
Jun. 30, 2015
USD ($)
Jul. 31, 2015
USD ($)
employee
claim
Jun. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Jul. 31, 2015
employee
claim
Sep. 30, 2014
claim
Dec. 31, 2013
USD ($)
Loss Contingencies [Line Items]                      
Number of subsidiaries included in law suit | subsidiary   2                  
Accrued liabilities | $         $ 380   $ 380        
Charges to operations | $         $ 400   $ 583        
Convertible Notes Payable                      
Loss Contingencies [Line Items]                      
Proceeds from issuance Public Offering | $       $ 300,000              
Common Stock                      
Loss Contingencies [Line Items]                      
Proceeds from issuance Public Offering | $       $ 1,656,000              
Compensatory damages                      
Loss Contingencies [Line Items]                      
Loss contingency accrual | $                     $ 1,325
Damages paid, value | $               $ 1,325      
New claims filed, number       2              
Number of plaintiffs | employee       17              
Compensatory damages | Triad                      
Loss Contingencies [Line Items]                      
New claims filed, number                   7  
Number of plaintiffs | plaintiffs     32,000                
Compensatory damages | Triad | Settled Litigation                      
Loss Contingencies [Line Items]                      
New claims filed, number                   5  
Compensatory damages | Triad | Entered into Settlement Agreements                      
Loss Contingencies [Line Items]                      
New claims filed, number                   2  
Compensatory damages | Triad | Subsequent Event                      
Loss Contingencies [Line Items]                      
New claims filed, number           7          
Number of plaintiffs | employee           40          
Damages sought by plaintiff | $           $ 1,409          
New lawsuits filed, number           1          
Compensatory damages | Triad | Subsequent Event | Settled Litigation                      
Loss Contingencies [Line Items]                      
New claims filed, number           5          
Compensatory damages | Triad | Subsequent Event | Unspecified Litigation                      
Loss Contingencies [Line Items]                      
New claims filed, number           2          
Compensatory damages | Securities America                      
Loss Contingencies [Line Items]                      
New claims filed, number 1                    
Number of plaintiffs | employee 29                    
Compensatory damages | Securities America | Pending Litigation                      
Loss Contingencies [Line Items]                      
Potential claims, number 4                    
Compensatory damages | Securities America | Pending Litigation | Nine Arbitration Claims                      
Loss Contingencies [Line Items]                      
Number of plaintiffs | employee 34                    
Pending claims, number 9                    
Damages sought by plaintiff | $ $ 10,000                    
Compensatory damages | Securities America | Pending Litigation | Four Potential Claims                      
Loss Contingencies [Line Items]                      
Number of plaintiffs | employee 31                    
Damages sought by plaintiff | $ $ 467                    
Compensatory damages | Securities America | Subsequent Event                      
Loss Contingencies [Line Items]                      
New claims filed, number                 11    
Number of plaintiffs | employee                 64    
Compensatory damages | Ladenburg                      
Loss Contingencies [Line Items]                      
Number of plaintiffs | employee       1