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Other Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Schedule of Accrued Liabilities [Line Items]        
Balance at beginning of period $ 7,075 $ 8,722 $ 9,786 $ 8,154
Accruals for warranties issued during the period 3,684 5,649 5,107 9,425
Adjustments related to pre-existing warranties (869) 403 (1,798) 143
Settlements made during the period (2,539) (3,727) (5,744) (6,675)
Balance at end of period 7,351 11,047 7,351 11,047
Balance at beginning of period 28,599 12,927 26,987 12,742
Deferral of new extended warranty revenue 8,734 9,935 12,205 12,282
Recognition of extended warranty deferred revenue (2,479) (2,108) (4,338) (4,270)
Balance at end of period $ 34,854 $ 20,754 $ 34,854 $ 20,754