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Fair Value Measurements and Fair Value of Financial Instruments - Assets and Liabilities, Recurring Basis (Details) - Recurring - USD ($)
$ in Thousands
Dec. 31, 2016
Jan. 02, 2016
Assets:    
Money market funds and time deposits $ 10,855 $ 9,767
Forward currency-exchange contracts 2 2,536
Interest rate swap agreement 62 38
Banker's acceptance drafts 7,852 8,314
Liabilities:    
Forward currency-exchange contracts 278 101
Interest rate swap agreement   91
Contingent consideration   1,091
Level 1    
Assets:    
Money market funds and time deposits 10,855 9,767
Forward currency-exchange contracts 0 0
Interest rate swap agreement 0 0
Banker's acceptance drafts 0 0
Liabilities:    
Forward currency-exchange contracts 0 0
Interest rate swap agreement   0
Contingent consideration   0
Level 2    
Assets:    
Money market funds and time deposits 0 0
Forward currency-exchange contracts 2 2,536
Interest rate swap agreement 62 38
Banker's acceptance drafts 7,852 8,314
Liabilities:    
Forward currency-exchange contracts 278 101
Interest rate swap agreement   91
Contingent consideration   0
Level 3    
Assets:    
Money market funds and time deposits 0 0
Forward currency-exchange contracts 0 0
Interest rate swap agreement 0 0
Banker's acceptance drafts 0 0
Liabilities:    
Forward currency-exchange contracts $ 0 0
Interest rate swap agreement   0
Contingent consideration   $ 1,091