Schedule of Fair Value of Notes (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2016	Sep. 28, 2016	Apr. 03, 2012
Fair Value Disclosures [Line Items]
Derivative, fixed interest rate		3.50%	4.375%
3.5% Senior Notes Due 2026
Fair Value Disclosures [Line Items]
Derivative, fixed interest rate	3.50%
Senior notes due year	2026
4.375% Senior Notes Due 2022
Fair Value Disclosures [Line Items]
Derivative, fixed interest rate	4.375%
Senior notes due year	2022