v2.4.0.6
Income Per Share - Computation for Basic and Diluted Net Income Per Share of Common Stock (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Dec. 28, 2012
Dec. 30, 2011
Numerator:    
Net income $ 6,108 $ 22,042
Accretion to redemption value of redeemable convertible preferred stock   (1,415)
Participating preferred stock dividends   (19,777)
Participating restricted stock dividends   (99)
Net income attributable to common stockholders $ 6,108 $ 751
Denominator:    
Weighted average common shares outstanding-basic 45,511 1,747
Weighted average common shares outstanding-diluted 46,870 3,753
Common stock earnings per share:    
Basic $ 0.13 $ 0.43
Diluted $ 0.13 $ 0.20
Options and warrants [Member]
   
Denominator:    
Dilutive effect of options and warrants 1,359 2,006