Components of Long-Term Debt (Parenthetical) (Detail)	3 Months Ended
	Mar. 30, 2014	Mar. 30, 2014 3.875% Convertible Senior Subordinated Notes	Dec. 31, 2013 3.875% Convertible Senior Subordinated Notes	Mar. 30, 2014 6.875% Senior Subordinated Notes due 2019	Dec. 31, 2013 6.875% Senior Subordinated Notes due 2019
Debt Instrument [Line Items]
Revolving credit facility interest rate	2.15%
Convertible senior notes percentage	3.875%	3.875%	3.875%	6.875%	6.875%
Debt instrument maturity date				2019	2019
Revolving credit facility maturity date	Jul. 16, 2018