Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Debt - Narrative (Detail)

v3.19.3.a.u2
Debt - Narrative (Detail) - USD ($)
12 Months Ended
Jun. 27, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jun. 21, 2018
Dec. 22, 2016
Line of Credit Facility [Line Items]            
Long-term outstanding borrowings   $ 0 $ 5,000,000      
Debt issuance costs   (671,000) (997,000)      
Gain (loss) on debt extinguishment   $ (1,018,000) $ 0 $ 0    
Weighted average interest rate of debt   4.64% 4.56%      
Revolving credit facility            
Line of Credit Facility [Line Items]            
Swingline sublimit           $ 10,000,000.0
Long term debt outstanding   $ 0 $ 5,000,000      
Term Loan            
Line of Credit Facility [Line Items]            
Debt issuance costs   $ (671,000)        
Debt instrument, percentage of net cash proceeds from sales and dispositions subject to certain reinvestment rights   100.00%        
Debt instrument percentage of net cash proceeds from issuances or incurrence of additional debt to be used for mandatory prepayment   100.00%        
Long term debt outstanding   $ 97,500,000        
Debt instrument percentage of excess cash flow to be used for mandatory prepayment starting next fiscal year   75.00%        
Debt instrument covenant leverage ratio   325.00%        
Debt instrument, percentage of excess cash flow to be used for mandatory prepayment, step-down percentage   50.00%        
Debt instrument percentage of net cash proceeds from issuances of permitted equity securities to be used for mandatory prepayment   100.00%        
Term Loan | Minimum            
Line of Credit Facility [Line Items]            
Debt instrument covenant leverage ratio   275.00%        
Term Loan | Maximum            
Line of Credit Facility [Line Items]            
Debt instrument covenant leverage ratio   325.00%        
Term Loan | Federal Funds Rate            
Line of Credit Facility [Line Items]            
Debt instrument, basis spread on variable rate   0.50%        
Term Loan | London Interbank Offered Rate (LIBOR)            
Line of Credit Facility [Line Items]            
Debt instrument, basis spread on variable rate   1.00%        
Term Loan | London Interbank Offered Rate (LIBOR) | Minimum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   2.25%        
Term Loan | London Interbank Offered Rate (LIBOR) | Maximum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   4.00%        
Term Loan | Base Rate | Minimum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   1.25%        
Term Loan | Base Rate | Maximum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   3.00%        
New Credit Agreement | Federal Funds Rate            
Line of Credit Facility [Line Items]            
Debt instrument, basis spread on variable rate   0.50%        
New Credit Agreement | London Interbank Offered Rate (LIBOR)            
Line of Credit Facility [Line Items]            
Debt instrument, basis spread on variable rate   1.00%        
New Credit Agreement | London Interbank Offered Rate (LIBOR) | Minimum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   1.25%        
New Credit Agreement | London Interbank Offered Rate (LIBOR) | Maximum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   2.25%        
New Credit Agreement | Base Rate | Minimum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   0.25%        
New Credit Agreement | Base Rate | Maximum            
Line of Credit Facility [Line Items]            
Debt instrument applicable margin rate   1.25%        
New Credit Agreement | Revolving credit facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity $ 100,000,000.0          
Swingline sublimit $ 10,000,000.0          
Commitment fee (as a percent) 0.25%          
New Credit Agreement | Revolving credit facility | Minimum            
Line of Credit Facility [Line Items]            
Commitment fee (as a percent) 0.15%          
New Credit Agreement | Revolving credit facility | Maximum            
Line of Credit Facility [Line Items]            
Commitment fee (as a percent) 0.35%          
New Credit Agreement | Term Loan            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity $ 100,000,000.0          
Annual principal amortization in first year (as a percent) 5.00%          
Annual principal amortization in second year (as a percent) 5.00%          
Annual principal amortization in third year (as a percent) 7.50%          
Annual principal amortization in fourth year (as a percent) 7.50%          
Annual principal amortization after fourth year (as a percent) 10.00%          
Current outstanding borrowings   $ 5,000,000.0        
Long-term outstanding borrowings   91,800,000        
Debt issuance costs   $ (700,000)        
Debt instrument, percentage of net cash proceeds from sales and dispositions subject to certain reinvestment rights   100.00%        
Debt instrument percentage of net cash proceeds from issuances or incurrence of additional debt to be used for mandatory prepayment   100.00%        
New Credit Agreement | Delayed Draw Term Loan            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity $ 50,000,000.0          
Prior Financing Agreement            
Line of Credit Facility [Line Items]            
Debt issuance costs     (1,000,000.0)      
Gain (loss) on debt extinguishment   $ 1,000,000.0        
Prior Financing Agreement | Revolving credit facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity           75,000,000.0
Long term debt outstanding     5,000,000.0      
Prior Financing Agreement | Term Loan            
Line of Credit Facility [Line Items]            
Current outstanding borrowings     7,900,000      
Long-term outstanding borrowings     $ 88,900,000      
Debt instrument, face amount         $ 30,000,000.0 $ 75,000,000.0