Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.1.9
Product Warranties - Summary of Activity in Warranty Accrual (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Guarantees [Abstract]    
Balance at beginning of period $ 4,884us-gaap_ProductWarrantyAccrual $ 2,796us-gaap_ProductWarrantyAccrual
Acquisitions 500us-gaap_ProductWarrantyAccrualAdditionsFromBusinessAcquisition 790us-gaap_ProductWarrantyAccrualAdditionsFromBusinessAcquisition
Warranties issued 738us-gaap_ProductWarrantyAccrualWarrantiesIssued 329us-gaap_ProductWarrantyAccrualWarrantiesIssued
Warranties settled (726)us-gaap_ProductWarrantyAccrualPayments (334)us-gaap_ProductWarrantyAccrualPayments
Reassessed warranty exposure 76us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease 156us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease
Balance at end of period $ 5,472us-gaap_ProductWarrantyAccrual $ 3,737us-gaap_ProductWarrantyAccrual