XML 47 R32.htm IDEA: XBRL DOCUMENT v3.7.0.1
Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 01, 2017
USD ($)
Jul. 01, 2017
USD ($)
Segment
Jul. 02, 2016
USD ($)
Dec. 31, 2016
USD ($)
Accounting Policies [Abstract]        
Number of reportable segments | Segment   2    
Business Acquisition [Line Items]        
Additional post-closing consideration   $ 165 $ 56,617  
Restricted Cash   $ 2,141   $ 2,082
Banker's acceptance drafts, maturity period   6 months    
Banker's acceptance drafts   $ 10,181   $ 7,852
PAAL [Member]        
Business Acquisition [Line Items]        
Additional post-closing consideration $ 165