Reconciliation of Debt Issuance Costs and Debt Discounts to the Net Carrying Value for Each Debt Obligation (Excluding Line of Credit Arrangements) (Detail) - USD ($) $ in Thousands	Apr. 23, 2016	Jan. 02, 2016
Debt Instrument [Line Items]
Face Value	$ 802,500	$ 660,000
Debt issuance and debt discount	5,827	5,521
Net carrying value	796,673	654,479
Other Notes Payable
Debt Instrument [Line Items]
Face Value	20,000	20,000
Debt issuance and debt discount	894	1,011
Net carrying value	19,106	18,989
Unsecured Two Thousand Thirteen Term Loan
Debt Instrument [Line Items]
Face Value	232,500	240,000
Debt issuance and debt discount	1,428	1,485
Net carrying value	231,072	238,515
Unsecured 2016 Term Loan
Debt Instrument [Line Items]
Face Value	150,000
Debt issuance and debt discount	629
Net carrying value	149,371
4.375% Senior Notes Due 2022
Debt Instrument [Line Items]
Face Value	400,000	400,000
Debt issuance and debt discount	2,876	3,025
Net carrying value	$ 397,124	$ 396,975