Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Detail)

v3.4.0.3
Commitments and Contingencies (Detail)
$ in Thousands
 1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended 24 Months Ended
Apr. 04, 2016
USD ($)
Apr. 30, 2016
USD ($)
plaintiffs
Nov. 30, 2015
claim
Sep. 30, 2015
USD ($)
Jan. 31, 2015
USD ($)
employee
claim
Mar. 31, 2016
USD ($)
Feb. 29, 2016
USD ($)
employee
claim
Dec. 31, 2014
USD ($)
security_offering
firm
underwriter
Loss Contingencies [Line Items]                
Number of firms that underwrote security offerings | firm               9
Number of security offerings | security_offering               6
Loss contingency accrual, product liability           $ 598    
Charges to operations           $ 677    
Subsequent Event                
Loss Contingencies [Line Items]                
Term of contract 14 years              
2016 $ 1,791              
2017 1,791              
2018 $ 1,954              
Increase per year thereafter, percent 2.00%              
Ladenburg                
Loss Contingencies [Line Items]                
Number of security offerings | security_offering               2
Number of Underwriters | underwriter               1
Ladenburg | Subsequent Event                
Loss Contingencies [Line Items]                
Number of plaintiffs | plaintiffs   2            
Damages sought by plaintiff   $ 1,900            
Subsidiaries | Subsequent Event                
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 | employee         17      
Damages sought by plaintiff               $ 151,000
Compensatory damages | Ladenburg                
Loss Contingencies [Line Items]                
Number of plaintiffs | employee         1      
Damages sought by plaintiff               $ 2,900,000
Compensatory damages | Triad                
Loss Contingencies [Line Items]                
New claims filed, number | claim             8  
Number of plaintiffs | employee             45  
Damages sought by plaintiff             $ 1,071  
New lawsuits filed, number | claim             1  
Compensatory damages | Triad | Unspecified Litigation                
Loss Contingencies [Line Items]                
New claims filed, number | claim             3  
Compensatory damages | Triad | Settled Litigation                
Loss Contingencies [Line Items]                
New claims filed, number | claim             6  
Number of plaintiffs | employee             35  
Compensatory damages | Triad | Pending Litigation                
Loss Contingencies [Line Items]                
Damages sought by plaintiff       $ 3,714        
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