Annual report pursuant to Section 13 and 15(d)

Earnings Per Share - Numerators and Denominators in Basic and Diluted Earnings (Loss) Per Share (Detail)

v3.5.0.2
Earnings Per Share - Numerators and Denominators in Basic and Diluted Earnings (Loss) Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Sep. 24, 2016
Jun. 25, 2016
Mar. 26, 2016
Dec. 26, 2015
Sep. 26, 2015
Jun. 27, 2015
Mar. 28, 2015
Dec. 27, 2014
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Earnings Per Share [Abstract]                      
Net income (loss) available to common shareholders basic                 $ 44,514 $ 31,971 $ 8,804
Net income (loss) available to common shareholders diluted                 $ 44,514 $ 31,971 $ 8,804
Net income (loss) available to common shareholders basic (in shares) 49,453 49,120 48,717 48,566 48,322 48,167 48,384 49,379 48,964 48,562 48,880
Options to purchase common stock (in shares)                 1,335 520 69
Restricted shares (in shares)                 776 556 448
Net income (loss) available to common shareholders diluted (in shares) 49,453 51,063 50,445 48,566 48,322 49,290 49,439 49,379 51,075 49,638 49,397
Net income (loss) available to common shareholders basic (in usd per share) $ (0.11) $ 0.53 $ 0.67 $ (0.18) $ (0.09) $ 0.39 $ 0.48 $ (0.12) $ 0.91 $ 0.66 $ 0.18
Options to purchase common stock (in usd per share)                 (0.02) (0.01) 0.00
Restricted shares (in usd per share)                 (0.02) (0.01) 0.00
Net income (loss) available to common shareholders diluted (in usd per share) $ (0.11) $ 0.51 $ 0.65 $ (0.18) $ (0.09) $ 0.38 $ 0.47 $ (0.12) $ 0.87 $ 0.64 $ 0.18