Product warranties (Tables)

3 Months Ended

Mar. 29, 2014

Product Warranties Disclosures [Abstract]

Provision for warranty obligations

The activity related to warranty obligations is as follows:

	Three Months Ended
	March 29, 2014			March 30, 2013
Balance at beginning of period	$	35,818		32,930
Warranty claims paid during the period	(14,024		)	(13,301	)
Acquisitions	—			2,780
Warranty expense during the period	11,466			13,074
Balance at end of period	$	33,260		35,483