Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Additional Information) (Detail)

v3.19.1
Employee Benefit Plans (Additional Information) (Detail) - USD ($)
12 Months Ended
Jul. 02, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Employee Benefit Plans [Line Items]        
Percentage Of Employee Deferrals 100.00%      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match   3.00%    
Defined Contribution Plan, Cost   $ 100,188 $ 0 $ 0