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Commitments And Contingencies (Schedule Of Changes In The Liability For Product Warranty) (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jul. 01, 2012
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Jun. 26, 2011
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Jul. 01, 2012
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Jun. 26, 2011
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| Product Liability Contingency [Line Items] | ||||
| Balance at beginning of period | $ 3,794 | $ 2,985 | $ 2,537 | $ 3,635 |
| Provision for warranties issued | 1,070 | 978 | 2,587 | 1,340 |
| Settlements made | (913) | (1,721) | (1,100) | (2,465) |
| Changes in liability for pre-existing warranties during the period | (91) | (404) | (164) | (672) |
| Balance at end of period | $ 3,860 | $ 1,838 | $ 3,860 | $ 1,838 |