Quarterly report pursuant to Section 13 or 15(d)

Product Warranties - Summary of Activity in Warranty Accrual (Details)

v3.8.0.1
Product Warranties - Summary of Activity in Warranty Accrual (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]        
Balance at Beginning of Period $ 4,637 $ 5,361 $ 4,675 $ 5,741
Acquisitions 0 0 359 0
Warranties Issued 483 600 1,315 1,806
Warranties Settled (608) (616) (1,832) (1,906)
Reassessed Warranty Exposure 106 (17) 101 (313)
Balance at End of Period $ 4,618 $ 5,328 $ 4,618 $ 5,328
Minimum        
Product Liability Contingency [Line Items]        
Product warranty period     12 months  
Maximum        
Product Liability Contingency [Line Items]        
Product warranty period     60 months