Components of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2014	May 21, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Revolving credit facility, at a rate of 2.15% at June 29, 2014, due 7/16/2018	$ 200,000		$ 680,000
5.25% Senior Notes due 2024	250,000	250,000
Total borrowings	1,100,000		1,330,000
Less: Unamortized debt discount on 3.875% Convertible Senior Subordinated Notes	(42,427)		(48,413)
Total long-term debt	1,057,573		1,281,587
Current portion of borrowings	(357,573)		(351,587)
Long-term borrowings	700,000		930,000
3.875% Convertible Senior Subordinated Notes
Debt Instrument [Line Items]
3.875% Convertible Senior Subordinated Notes	400,000		400,000
6.875% Senior Subordinated Notes due 2019
Debt Instrument [Line Items]
6.875% Senior Subordinated Notes due 2019	$ 250,000		$ 250,000