Summary of Stock Repurchase Activity (Detail) - 6 months ended Jun. 19, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total
Stock Repurchase Program [Line Items]
Number of Shares Repurchased, As of January 2, 2015	3,996,725
Number of Shares Repurchased, As of June 19, 2015	4,814,451
Cost of Shares Repurchased, As of January 2, 2015	$ 229,229
Cost of Shares Repurchased, for the twenty-four weeks ended June 19, 2015	66,237
Cost of Shares Repurchased, As of June 19, 2015	$ 295,466
Treasury Stock
Stock Repurchase Program [Line Items]
Number of Shares Repurchased, As of January 2, 2015	3,996,725
Number of Shares Repurchased, for the twenty-four weeks ended June 19, 2015	817,726
Number of Shares Repurchased, As of June 19, 2015	4,814,451
Cost of Shares Repurchased, As of January 2, 2015	$ 229,229
Cost of Shares Repurchased, for the twenty-four weeks ended June 19, 2015	66,237
Cost of Shares Repurchased, As of June 19, 2015	$ 295,466
Average Price Paid per Share, As of January 2, 2015	$ 57.35
Average Price Paid per Share, for the twenty-four weeks ended June 19, 2015	81.00
Average Price Paid per Share, As of June 19, 2015	$ 61.37