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Long-Term Debt - Line of Credit (Details)
3 Months Ended
Jun. 01, 2015
USD ($)
increase_option
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Line of Credit Facility [Abstract]      
Proceeds from line of credit   $ 0 $ 29,782,500
Repayments of amounts borrowed on line of credit   0 (29,782,500)
Interest expense   3,503,395 $ 37,968
ABL Facility [Member]      
Line of Credit Facility [Abstract]      
Repayments of amounts borrowed on line of credit   (6,000,000)  
Remaining borrowing capacity   168,400,000  
Issuance costs   $ 3,100,000  
Life of ABL facility   5 years  
Interest expense   $ 200,000  
ABL Facility [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Current borrowing capacity $ 200,000,000    
Increase to borrowing capacity 100,000,000    
Maximum borrowing capacity $ 300,000,000    
Number if increases to borrowing capacity available during life of facility | increase_option 4    
Commitment fee percentage   0.375%  
Amount outstanding   $ 0  
Remaining borrowing capacity   169,100,000  
ABL Facility [Member] | Letter of Credit      
Line of Credit Facility [Abstract]      
Amount outstanding   $ 700,000  
ABL Facility [Member] | Federal Funds Effective Rate | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   0.50%  
ABL Facility [Member] | LIBOR | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   1.00%  
ABL Facility [Member] | Minimum | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Commitment fee percentage   0.25%  
ABL Facility [Member] | Minimum | Federal Funds Effective Rate | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   0.25%  
ABL Facility [Member] | Minimum | LIBOR | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   1.25%  
ABL Facility [Member] | Maximum | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Commitment fee percentage   0.375%  
ABL Facility [Member] | Maximum | Federal Funds Effective Rate | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   0.75%  
ABL Facility [Member] | Maximum | LIBOR | Revolving Credit Facility [Member]      
Line of Credit Facility [Abstract]      
Basis spread on variable rate   1.75%  
Senior Notes [Member]      
Line of Credit Facility [Line Items]      
Long-term Debt   $ 255,875,000  
Convertible senior notes, principal amount   230,000,000  
Line of Credit Facility [Abstract]      
Interest expense   3,100,000  
Unamortized debt issuance costs   $ (5,226,948)