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Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Reconciliation of Unrecognized Tax Benefits [Roll Forward]    
Unrecognized tax benefits, beginning of year $ 5,006 $ 5,423
Gross decreases—tax positions in prior periods (28) (153)
Gross increases—current-period tax positions 476 960
Lapses of statutes of limitations (253) (967)
Currency translation (149) (257)
Unrecognized tax benefits, end of year $ 5,052 $ 5,006