XML 54 R42.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accounting Policies - Schedule of Change in Accumulated Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Accounting Policies [Abstract]        
Accumulated other comprehensive loss, beginning of period     $ (2,941)  
Foreign currency translation adjustments $ (2,785) $ 2,300 (3,056) $ 2,866
Accumulated other comprehensive loss, end of period $ (5,997)   $ (5,997)