Debt - Components of Debt (Parenthetical) (Detail) - USD ($) $ in Millions	6 Months Ended
	Jul. 04, 2015	Aug. 30, 2013
10.000% Senior Notes Due in 2021 [Member]
Debt Instrument [Line Items]
Interest rate on notes	10.00%
Debt instrument maturity year	2021
Outstanding aggregate principal amount		$ 350.0
Debt instrument fair value	$ 406.0
6.750% Senior Notes Due in 2020 [Member]
Debt Instrument [Line Items]
Interest rate on notes	6.75%
Debt instrument maturity year	2020
Outstanding aggregate principal amount	$ 350.0
Debt instrument fair value	406.0
Debt instrument, unamortized premium	$ 56.0
Debt Instrument effective interest rate	7.515%
5.375% Senior Notes Due in 2022 [Member]
Debt Instrument [Line Items]
Interest rate on notes	5.375%
Debt instrument maturity year	2022