v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2018
Jun. 30, 2017
Jun. 29, 2018
Jun. 30, 2017
Income Tax Disclosure [Abstract]        
Provision for income taxes $ 4,711 $ 4,036 $ (1,868) $ 4,792
Effective tax rates 20.00% 22.70% (4.90%) 16.50%