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LONG-TERM DEBT (Details)
3 Months Ended
Aug. 01, 2014
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
May 07, 2013
USD ($)
Debt        
Senior secured term loan   $ 478,167,000 $ 479,653,000  
Less: debt issuance costs, net   (4,195,000) (4,486,000)  
Less: unamortized discount, net   (1,517,000) (1,622,000)  
Net long-term debt   472,455,000 473,545,000  
Less: current portion   (5,945,000) (5,945,000)  
Long-term debt, less current portion   466,510,000 467,600,000  
Senior secured term loan        
Debt        
Less: debt issuance costs, net   (4,200,000) (4,500,000)  
Debt instrument accordion feature increase in additional borrowings       $ 200,000,000.0
Aggregate amount of each consecutive quarterly scheduled principal installment $ 1,500,000      
Mandatory prepayments owed   $ 0    
Interest rate at the end of the period (as a percent)   4.50%    
Accumulated amortization   $ 6,100,000 $ 5,800,000  
Senior secured term loan | Maximum        
Debt        
Leverage ratio to be maintained under the credit facility covenants   3.0    
Covenant threshold, leverage ratio   3.50    
Number of days within which the entity fails to pay principal when due or interest or any other amount owing on any other obligation under the credit agreement, is considered as event of default   5 days    
Amount of principal or interest if failed to pay considered as event of default   $ 40,000,000    
Amount of debt which results in acceleration of debt if failed to pay considered as event of default   40,000,000    
Amount of unbonded, undischarged or unstayed debt under entry by court of one or more judgments for certain period to determine as event of default   $ 40,000,000    
Senior secured term loan | Minimum        
Debt        
Leverage ratio to be maintained under the credit facility covenants   1.00    
Covenant threshold, leverage ratio   1.00    
Senior secured term loan | Adjusted Eurodollar Rate        
Debt        
Reference rate   Adjusted Eurodollar Rate    
Fixed interest rate base (as a percent)   1.00%    
Interest rate margin (as a percent)   3.50%    
Senior secured term loan | Base Rate        
Debt        
Reference rate   Base Rate    
Fixed interest rate base (as a percent)   2.00%    
Interest rate margin (as a percent)   2.50%