Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENT (Details)

v3.5.0.2
SUBSEQUENT EVENT (Details) - USD ($)
Oct. 21, 2016
Sep. 30, 2016
4.50% convertible subordinated notes    
Subsequent Event [Line Items]    
Interest rate, per annum on the principal amount (percent)   4.50%
Subsequent event    
Subsequent Event [Line Items]    
Credit facility maximum borrowing $ 170,000,000  
Long-term debt 61,400,000  
Borrowings 76,000,000  
Transaction fees and other expenses 4,600,000  
Subsequent event | Long-term debt    
Subsequent Event [Line Items]    
Borrowing capacity 100,000,000  
Restricted reserve requirement 10,000,000  
Reserve requirement $ 20,000,000  
Subsequent event | Long-term debt | Base rate | Minimum    
Subsequent Event [Line Items]    
Variable rate basis spread (percent) 1.50%  
Subsequent event | Long-term debt | Base rate | Maximum    
Subsequent Event [Line Items]    
Variable rate basis spread (percent) 2.50%  
Subsequent event | Term Loan    
Subsequent Event [Line Items]    
Long-term debt $ 50,000,000  
Subsequent event | Term Loan | Base rate | Minimum    
Subsequent Event [Line Items]    
Variable rate basis spread (percent) 7.00%  
Subsequent event | Term Loan | Base rate | Maximum    
Subsequent Event [Line Items]    
Variable rate basis spread (percent) 8.25%  
Subsequent event | Delayed term loan    
Subsequent Event [Line Items]    
Long-term debt $ 20,000,000