Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Detail)

v3.5.0.2
Commitments and Contingencies (Detail)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 5 Months Ended 9 Months Ended 12 Months Ended 24 Months Ended
Feb. 01, 2016
USD ($)
Oct. 31, 2016
plaintiff
Nov. 30, 2015
claim
Sep. 30, 2015
USD ($)
Jan. 31, 2015
USD ($)
note_offering
plaintiff
claim
Sep. 30, 2016
USD ($)
Jul. 31, 2016
USD ($)
claim
Jun. 30, 2016
plaintiff
claim
Sep. 30, 2016
USD ($)
Feb. 29, 2016
plaintiff
claim
Dec. 31, 2014
USD ($)
security_offering
firm
underwriter
Loss Contingencies [Line Items]                      
Number of prior note offerings | note_offering         3            
Number of firms that underwrote security offerings | firm                     9
Number of security offerings | security_offering                     6
Loss contingency accrual, product liability           $ 3,224     $ 3,224    
Charges to operations           3,584     5,384    
Term of contract 14 years                    
2016 $ 1,791                    
2017           1,791     1,791    
2018 $ 1,954                    
Increase per year thereafter, percent 2.00%                    
Aggregate commitment           $ 49,821     $ 49,821    
Ladenburg                      
Loss Contingencies [Line Items]                      
New claims filed, number | claim             4        
Number of security offerings | security_offering                     2
Damages sought by plaintiff             $ 4,300        
Number of underwriters | underwriter                     1
Subsidiaries                      
Loss Contingencies [Line Items]                      
Term of contract 12 years                    
Annual rental payments $ 1,811                    
Compensatory damages                      
Loss Contingencies [Line Items]                      
New claims filed, number | claim     2   2            
Number of plaintiffs | plaintiff         17            
Damages sought by plaintiff                     $ 151,000
Compensatory damages | Ladenburg                      
Loss Contingencies [Line Items]                      
Damages sought by plaintiff                     $ 2,900,000
Compensatory damages | Triad                      
Loss Contingencies [Line Items]                      
New claims filed, number | claim                   8  
Number of plaintiffs | plaintiff               2   45  
New lawsuits filed, number | claim                   1  
Number of claims settled | claim               8      
Number of claims pending decision | claim                    
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            
Pending Litigation | Compensatory damages | Triad                      
Loss Contingencies [Line Items]                      
Damages sought by plaintiff       $ 3,714              
ARCP July 2013 Offering | Compensatory damages                      
Loss Contingencies [Line Items]                      
Number of plaintiffs | plaintiff         8            
Subsequent Event | Securities America                      
Loss Contingencies [Line Items]                      
Number of plaintiffs | plaintiff   2