Debt - Components of Debt (Parenthetical) (Detail)	Dec. 29, 2018
10.000% Senior Notes Due in 2021
Debt Instrument [Line Items]
Interest rate on notes	10.00%
Interest rate on notes	10.00%
5.375% senior notes due in 2022
Debt Instrument [Line Items]
Interest rate on notes	5.375%
Interest rate on notes	5.375%
5.500% senior notes due in 2024
Debt Instrument [Line Items]
Interest rate on notes	5.50%
Interest rate on notes	5.50%