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Equity-Based Compensation - Additional information (Detail)
1 Months Ended 3 Months Ended
Feb. 28, 2017
Employee
$ / shares
shares
Feb. 29, 2016
Employee
$ / shares
shares
Apr. 01, 2017
USD ($)
shares
Apr. 02, 2016
USD ($)
shares
Jan. 01, 2017
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase of common stock through payroll deductions     85.00%    
Offering periods     2 years    
Purchase intervals of a series     6 months    
Maximum employee salary withholdings for purchase of common stock under the terms of the ESPP     15.00%    
Cumulative effect of change in accumulated deficit | $         $ 1,100,000
Number of shares issued under employee stock purchase plan     195,184    
RSU conversion ratio     100.00%    
Annual incentive plan stock awards granted     30,625    
Restricted Stock Units (RSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award, vesting period     4 years    
Number of share awards granted     142,749    
Annual incentive plan equity-based compensation expense | $     $ 102,000 $ 115,000  
Number of participants in restricted stock grants awarded | Employee 33 34      
Annual incentive plan stock awards granted 134,000 266,000      
Weighted-average fair value of grants per share | $ / shares $ 9.63 $ 4.40      
Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of share awards granted       125,000  
Derived service period       2 years 9 months 18 days