Quarterly Financial Data (Detail) (USD $) In Thousands, except Per Share data	3 Months Ended	12 Months Ended
Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Jan. 02, 2011	Oct. 03, 2010	Jun. 27, 2010	Mar. 28, 2010	Dec. 27, 2009	Oct. 02, 2011	Oct. 03, 2010	Sep. 27, 2009
Quarterly Financial Information [Line Items]
Net Sales	$ 227,291	$ 216,722	$ 207,490	$ 184,351	$ 151,201	$ 136,017	$ 118,218	$ 112,832	$ 835,854	$ 518,268	$ 452,972
Gross profit	129,875	123,631	92,636	95,029	74,170	65,772	56,001	52,268	441,171	248,211	180,407
Net income	$ 42,085	$ 30,602	$ (16,944)	$ (1,296)	$ 6,560	$ 33,032	$ 11,486	$ 7,960	$ 54,447	$ 59,038	$ (26,823)
Basic earnings (loss) per share	$ 0.50	$ 0.36	$ (0.20)	$ (0.02)	$ 0.08	$ 0.40	$ 0.14	$ 0.10	$ 0.65	$ 0.73	$ (0.33)
Diluted earnings (loss) per share	$ 0.49	$ 0.35	$ (0.20)	$ (0.02)	$ 0.08	$ 0.40	$ 0.14	$ 0.10	$ 0.63	$ 0.72	$ (0.33)

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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-Glossary Other Comprehensive Income

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Reference 12: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Net Income

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+ Details