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Stockholders' Equity - Additional Information (Detail)
 12 Months Ended
Dec. 30, 2018
shares
Apr. 19, 2016
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
USD ($)
Employee
shares
Stockholders Equity [Line Items]          
Incremental fair value of modified award | $     $ 169,000 $ 451,000 $ 469,000
Requisite service period reorganization of stock on strait-line basis         3 years
Number of shares converted     1,400,000    
2018 Restricted Stock [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage per year     33.33%    
Restricted stock, vesting period     3 years    
2018 Restricted Stock [Member] | Tranche Three [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage     100.00%    
2017 Restricted Stock [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage per year       33.33%  
Restricted stock, vesting period       3 years  
2017 Restricted Stock [Member] | Tranche Two [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage       100.00%  
2016 Restricted Stock [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage per year         33.33%
Restricted stock, vesting period         3 years
2016 Restricted Stock [Member] | Tranche One [Member]          
Stockholders Equity [Line Items]          
Restricted stock, vesting percentage         100.00%
Restricted Stock [Member]          
Stockholders Equity [Line Items]          
Awards granted     369,350 469,465 850,771
Incremental fair value of modified award | $         $ 1,500,000
Restricted Stock Units (RSUs) [Member]          
Stockholders Equity [Line Items]          
Awards granted     35,511 37,992 27,654
Vesting description     Vesting occurs upon the earliest to occur: (i) the director’s separation from service, (ii) the third anniversary of the grant date, or (iii) the occurrence of a change of control as defined by the agreement.    
Performance Based Restricted Stock [Member]          
Stockholders Equity [Line Items]          
Awards granted 210,602        
2016 Plan [Member]          
Stockholders Equity [Line Items]          
Long term incentive plan, effective date         Apr. 19, 2016
Term of long term incentive plan   10 years      
Aggregate number of shares reserved and available for issuance     1,825,150   2,750,000
Minimum exercise price of stock option at grant date     No less than 100% of the fair market value, as defined in the 2016 Plan, of the shares on the date of grant.    
Percentage of fair market value         100.00%
Maximum term of stock option         10 years
Options granted     0 0 0
2008 Plan [Member]          
Stockholders Equity [Line Items]          
Awards granted         0
Shares surrendered by the number of employees | Employee         4
Number of shares surrendered by the employee during the period         280,000
Options vest at a percentage rate for first 5 years     16.50%    
Options final year vesting     end of the sixth year    
Total stock based compensation expense not yet recognized, relating to non-vested restricted stock and stock options | $     $ 3,228,000