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Equity Incentive Plan And Stock-Based Compensation (Schedule Of Activities And Related Information For RSU) (Detail) (USD $)
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6 Months Ended |
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Jul. 01, 2012
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Restricted Stock Units (RSUs) [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares Outstanding, Beginning |
2,143,035 |
| Number of shares, Granted |
1,212,473 |
| Number of shares, Canceled/Forfeited |
(190,683) |
| Number of shares, Vested |
(554,884) |
| Number of shares Outstanding, Ending |
2,609,941 |
| Beginning balance |
$ 14.94 |
| Weighted Average Exercise Price, Granted |
$ 10.36 |
| Weighted Average Exercise Price, Canceled/Forfeited |
$ 14.12 |
| Weighted Average Exercise Price, Vested |
$ 11.09 |
| Ending balance |
$ 13.69 |
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Key Executive RSU Activity [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares Outstanding, Beginning |
969,956 |
| Number of shares, Granted |
1,050,222 |
| Number of shares, Canceled/Forfeited |
(147,451) |
| Number of shares, Vested |
(147,451) |
| Number of shares Outstanding, Ending |
1,725,276 |
| Beginning balance |
$ 13.71 |
| Weighted Average Exercise Price, Granted |
$ 10.03 |
| Weighted Average Exercise Price, Canceled/Forfeited |
$ 13.06 |
| Weighted Average Exercise Price, Vested |
$ 10.03 |
| Ending balance |
$ 11.84 |