Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.10.0.1
Income Taxes - Additional Information (Detail) - USD ($)
9 Months Ended 12 Months Ended
Apr. 02, 2018
Dec. 31, 2018
Dec. 31, 2017
Mar. 31, 2018
Income Taxes [Line Items]        
Liability unrecognized tax benefits   $ 0   $ 0
Percentage of corporate income tax rate   21.00% 35.00%  
Income tax benefit from remeasurement of deferred tax assets and liabilities       971,000
One-time transition tax on accumulated foreign earnings       $ 185,000
Foreign derived intangible income (FDII) effective tax rate     13.125%  
Estimated incremental U.S. tax savings on foreign derived intangible income $ 200,000      
Earliest Tax Year [Member] | Federal Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2015    
Earliest Tax Year [Member] | State Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2013    
Earliest Tax Year [Member] | International Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2015    
Latest Tax Year [Member] | Federal Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2017    
Latest Tax Year [Member] | State Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2017    
Latest Tax Year [Member] | International Tax Jurisdictions [Member]        
Income Taxes [Line Items]        
Open tax year   2017