Share Repurchases - Additional Information (Detail) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	9 Months Ended		12 Months Ended		3 Months Ended		1 Months Ended	3 Months Ended	9 Months Ended	26 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Sep. 29, 2013 Share Repurchase Program [Member]	Sep. 29, 2013 Share Repurchase Program [Member] Receivable For Treasury Shares Repurchased [Member]	Sep. 30, 2013 Share Repurchase Program [Member] Subsequent Event [Member]	Sep. 30, 2013 Share Repurchase Program [Member] Subsequent Event [Member]	Sep. 30, 2013 Share Repurchase Program [Member] Subsequent Event [Member]	Sep. 30, 2013 Share Repurchase Program [Member] Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of common stock			$ 200,000,000	$ 150,000,000
Payments under share repurchase program	93,750,000	75,000,000			31,250,000				93,800,000	218,800,000
Repurchase of shares					300		300	500	1,700	5,400
Repurchase of shares average price per share								$ 60.71	$ 54.76	$ 40.37
Treasury stock	$ 277,009,000		$ 218,014,000			$ 15,900,000