Components of Long-Term Debt (Parenthetical) (Detail)	3 Months Ended	6 Months Ended			6 Months Ended	12 Months Ended	1 Months Ended	6 Months Ended
	Jun. 29, 2014	Jun. 29, 2014	Jun. 29, 2014 3.875% Convertible Senior Subordinated Notes	Dec. 31, 2013 3.875% Convertible Senior Subordinated Notes	Jun. 29, 2014 6.875% Senior Subordinated Notes due 2019	Dec. 31, 2013 6.875% Senior Subordinated Notes due 2019	May 21, 2014 5.25% Senior Notes due 2024	Jun. 29, 2014 5.25% Senior Notes due 2024
Debt Instrument [Line Items]
Revolving credit facility interest rate	2.15%
Debt instrument, stated interest rate	3.875%	3.875%	3.875%	3.875%	6.875%	6.875%	5.25%	5.25%
Debt instrument maturity date		Jul. 16, 2018	Aug. 01, 2017		Jun. 01, 2019	Jun. 01, 2019	Jun. 15, 2024	Jun. 15, 2024