v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Income Tax Disclosure [Abstract]        
Income tax expense (benefit) $ 870 $ 1,068 $ 1,615 $ 856