Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jul. 01, 2016
Jun. 30, 2017
Jul. 01, 2016
Statement of Comprehensive Income [Abstract]        
Net income $ 5,461 $ 6,050 $ 12,129 $ 12,640
Changes in derivative instrument:        
Net change in fair value of interest rate swap (28) (234) 95 (606)
Net (loss) gain reclassified to interest expense (1) 1 0 5
Tax benefit (expense) 10 83 (34) 214
Net change in derivative instrument (19) (150) 61 (387)
Foreign currency translation adjustments 1,704 (668) 1,831 (152)
Other comprehensive income (loss), net of tax 1,685 (818) 1,892 (539)
Total comprehensive income $ 7,146 $ 5,232 $ 14,021 $ 12,101