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Business Acquisition Business Acquisition (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2017
Jan. 04, 2016
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Business Acquisition [Line Items]            
Net sales     $ 197,154 $ 193,433 $ 383,720 $ 374,634
SurgiQuestInc            
Business Acquisition [Line Items]            
Business combination, consideration transferred   $ 257,700        
Payments to acquire business   $ 265,000        
Net sales       18,500   31,200
Pro Forma Information [Abstract]            
Net sales       193,433   374,634
Net income       6,337   12,659
Pro Forma [Member] | SurgiQuestInc            
Business Acquisition [Line Items]            
Business acquisition costs       $ 5,000   $ 14,000
Subsequent Event            
Business Acquisition [Line Items]            
Payments to acquire business $ 4,400