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Long-Term Debt - Additional information (Detail) - USD ($)
1 Months Ended 3 Months Ended
Dec. 31, 2016
Oct. 31, 2015
Jul. 31, 2015
Jun. 30, 2015
Apr. 01, 2017
Jul. 04, 2015
Debt Instrument [Line Items]            
Long-term debt $ 166,896,000       $ 162,156,000  
Parsons, KS | Municipal Bonds            
Debt Instrument [Line Items]            
Revenue bonds purchased 9,900,000          
Parsons, KS            
Debt Instrument [Line Items]            
Proceeds received from sale of property to be leased back 9,900,000          
Total lease liability from assets sold $ 9,900,000          
Interest rate cap            
Debt Instrument [Line Items]            
Interest rate hedge   $ 135,000,000        
Payments made for interest rate hedge   $ 1,000,000        
New Credit Facilities | First two years            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding         5.00%  
New Credit Facilities | Third year            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding         7.50%  
New Credit Facilities | Fourth and fifth years            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding         10.00%  
New Credit Facilities | Minimum            
Debt Instrument [Line Items]            
Commitment fee         0.175%  
New Credit Facilities | Maximum            
Debt Instrument [Line Items]            
Commitment fee         0.30%  
New Credit Facilities | LIBOR | Minimum            
Debt Instrument [Line Items]            
Spread on variable rate         1.50%  
New Credit Facilities | LIBOR | Maximum            
Debt Instrument [Line Items]            
Spread on variable rate         2.75%  
New Credit Facilities | Federal Funds Rate            
Debt Instrument [Line Items]            
Spread on base rate         0.50%  
New Credit Facilities | Eurodollar Rate            
Debt Instrument [Line Items]            
Spread on base rate         1.00%  
New Credit Facilities | Base Rate | Minimum            
Debt Instrument [Line Items]            
Spread on variable rate         0.50%  
New Credit Facilities | Base Rate | Maximum            
Debt Instrument [Line Items]            
Spread on variable rate         1.75%  
Senior Secured Term Loan | New Credit Facilities            
Debt Instrument [Line Items]            
Debt amount       $ 275,000,000.0    
Term       5 years    
Borrowings from senior secured debt     $ 275,000,000      
Repayments of long-term debt         $ 5,000,000  
Senior Secured Term Loan | Existing Credit Facilities            
Debt Instrument [Line Items]            
Cash paid on extinguishment of debt           $ 80,000,000
Unamortized debt issuance costs expensed           2,800,000
New Revolving Credit Facility | New Credit Facilities            
Debt Instrument [Line Items]            
Debt amount       $ 200,000,000.0    
Proceeds from revolving credit facility           65,000,000
Debt issuance costs           $ 4,800,000
Repayments of long-term debt     65,000,000      
Remaining borrowing capacity         199,000,000  
Outstanding standby letters of credit         $ 1,000,000  
Existing Notes | Existing Credit Facilities            
Debt Instrument [Line Items]            
Unamortized debt issuance costs expensed     2,100,000      
Long-term debt     200,000,000      
Call premium incurred     $ 9,800,000