Warranty Accrual Included in Other Accrued Liabilities (Detail) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Schedule of Accrued Liabilities [Line Items]
Balance at beginning of period	$ 6,660	$ 9,786
Accruals for warranties issued during the period	2,858	1,423
Adjustments related to pre-existing warranties	(140)	(929)
Settlements made during the period	(2,763)	(3,205)
Balance at end of period	$ 6,615	$ 7,075