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	Dec. 31, 2016	Sep. 28, 2016	Jan. 02, 2016	Apr. 03, 2012
Debt Instrument [Line Items]
Face Value	$ 817,500		$ 660,000
Debt issuance costs and debt discount	8,770		5,521
Net carrying value	808,730		654,479
Other Notes Payables
Debt Instrument [Line Items]
Face Value	17,500		20,000
Debt issuance costs and debt discount	634		1,011
Net carrying value	16,866		18,989
3.5% Senior Notes Due 2026
Debt Instrument [Line Items]
Face Value	400,000	$ 400,000
Debt issuance costs and debt discount	5,594
Net carrying value	394,406
4.375% Senior Notes Due 2022
Debt Instrument [Line Items]
Face Value	400,000		400,000	$ 400,000
Debt issuance costs and debt discount	2,542		3,025
Net carrying value	$ 397,458		396,975
Unsecured 2013 Term Loan
Debt Instrument [Line Items]
Face Value			240,000
Debt issuance costs and debt discount			1,485
Net carrying value			$ 238,515