Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Income Per Share

	Fiscal Year Ended
(in thousands, except per share data)	September 30, 2016		September 25, 2015			September 26, 2014
Basic and Diluted Earnings (Loss) per Share Numerator:
Net income (loss)	$	58,796	$	(4,955	)	$	(73,948	)
Convertible preferred stock and dividends	—		—			29,055
Net income (loss) attributable to common stockholders	$	58,796	$	(4,955	)	$	(103,003	)
Basic and Diluted Earnings (Loss) per Share Denominator:
Weighted-average shares outstanding - Basic	62,486		62,527			50,998
Weighted-average shares outstanding - Diluted	62,820		62,527			50,998
Earnings (loss) Per Share Available to Common Stockholders
Basic	$	0.94	$	(0.08	)	$	(2.02	)
Diluted	$	0.94	$	(0.08	)	$	(2.02	)