Debt, Commitments And Contingencies (Narrative) (Detail) (USD $)	0 Months Ended	9 Months Ended
	Nov. 21, 2012	Oct. 03, 2014	Jan. 03, 2014
Debt Instrument [Line Items]
Number of uncommitted revolving loan facilities		2
Total debt		$ 646,739,000	$ 758,458,000
Non-current portion of long-term debt		577,719,000	652,056,000
Ratio of total indebtedness to EBITDA		The 2012 Credit Facility contains various customary representations and warranties by the Company, which include customary use of materiality, material adverse effect and knowledge qualifiers. The 2012 Credit Facility also contains customary affirmative and negative covenants including, among other requirements, negative covenants that restrict the Company's ability to dispose of assets, create liens, incur indebtedness, repurchase stock, pay dividends, make acquisitions and make investments. Further, the 2012 Credit Facility contains financial covenants that require the maintenance of minimum interest coverage and maximum leverage ratios. Specifically, the Company must maintain as of the end of each fiscal quarter a ratio of (a) EBITDA (as defined in the 2012 Credit Facility) to (b) interest expenses for the most recently ended period of four fiscal quarters of not less than 3.00 to 1. The Company must also maintain, at the end of each fiscal quarter, a ratio of (x) total indebtedness to (y) EBITDA (as defined in the 2012 Credit Facility) for the most recently ended period of four fiscal quarters of not greater than 3 to 1; provided, that on the completion of a material acquisition, the Company may increase the ratio by 0.25 for the fiscal quarter during which such acquisition occurred and each of the three subsequent fiscal quarters.
Restrictive covenants		The Company was in compliance with these covenants as of the third quarter of fiscal 2014.
Unconditional purchase obligations		127,200,000
Term Loan [Member]
Debt Instrument [Line Items]
Credit Facilities Aggregate Principal Amount	700,000,000
Debt Instrument, Term	5 years
Total debt		638,750,000	665,000,000
Non-current portion of long-term debt		577,500,000
Unsecured revolving credit facility, expiration date		Nov. 21, 2017
Term Loan Repayments of Principal, Remainder of Fiscal Year		8,800,000
Term Loan Repayments of Principal in Year Two		70,000,000
Term Loan Repayments of Principal in Year Three		70,000,000
Term Loan Repayments of Principal in Year Four		490,000,000
2012 Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility, initiation date	Nov. 21, 2012
Credit Facilities Aggregate Principal Amount	1,400,000,000
Increase in available revolving credit line	300,000,000
Total debt			750,000,000
Interest Period on Borrowings		3 months
Covenant Ratio Increase upon acquisition		0.25
Long-term Debt, Weighted Average Interest Rate		1.41%	1.67%
2012 Credit Facility [Member] | Minimum
Debt Instrument [Line Items]
Minimum Interest Coverage Ratio		3.00
2012 Credit Facility [Member] | Minimum | Floating Per Annum Rate [Member]
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		0.00%
2012 Credit Facility [Member] | Minimum | Reserve-Adjusted Rate [Member]
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		1.00%
2012 Credit Facility [Member] | Maximum
Debt Instrument [Line Items]
Leverage Ratio On Credit Facility		3
2012 Credit Facility [Member] | Maximum | Floating Per Annum Rate [Member]
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		1.00%
2012 Credit Facility [Member] | Maximum | Reserve-Adjusted Rate [Member]
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		2.00%
Two Thousand Twelve Credit Facility & Two Thousand Thirteen Uncommitted Facility [Member]
Debt Instrument [Line Items]
Short-term Debt, Weighted Average Interest Rate		1.41%	1.31%
Promissory Notes And Other Debt [Member]
Debt Instrument [Line Items]
Total debt		7,989,000	8,458,000
Non-current portion of long-term debt		200,000	100,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit Facilities Aggregate Principal Amount	700,000,000
Debt Instrument, Term	5 years
Total debt		0	85,000,000
Unsecured revolving credit facility, expiration date		Nov. 21, 2017
Revolving Credit Facility [Member] | 2012 Credit Facility [Member] | Minimum
Debt Instrument [Line Items]
Credit facility commitment fee, percentage		0.15%
Revolving Credit Facility [Member] | 2012 Credit Facility [Member] | Maximum
Debt Instrument [Line Items]
Credit facility commitment fee, percentage		0.35%
Revolving Credit Facility [Member] | Uncommitted Facility One [Member]
Debt Instrument [Line Items]
Credit Facilities Aggregate Principal Amount		75,000,000
Revolving Credit Facility [Member] | Uncommitted Facility One [Member] | Minimum
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		0.90%
Revolving Credit Facility [Member] | Uncommitted Facility One [Member] | Maximum
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		1.00%
Revolving Credit Facility [Member] | Uncommitted Facility Two [Member]
Debt Instrument [Line Items]
Credit Facilities Aggregate Principal Amount		$ 75,000,000
Revolving Credit Facility [Member] | Uncommitted Facility Two [Member] | Minimum
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		0.90%
Revolving Credit Facility [Member] | Uncommitted Facility Two [Member] | Maximum
Debt Instrument [Line Items]
Credit facility interest rate in addition to specific base rates		1.00%