Debt - Additional Information (Detail) - USD ($)				1 Months Ended	6 Months Ended
	Jun. 15, 2016	Jun. 07, 2016	Apr. 01, 2015	Nov. 30, 2015	Jul. 03, 2016	Jun. 28, 2015	Jan. 03, 2016	Apr. 30, 2015	Oct. 31, 2014
Debt Instrument [Line Items]
Debt and capital lease obligations					$ 52,300,000	$ 59,200,000	$ 55,800,000
Senior notes, issuance cost					4,417,000	1,749,000	4,251,000
Refinanced under revolving credit facility					$ 164,757,000	$ 100,000,000
3.80% Unsecured Senior Notes 2025 [Member]
Debt Instrument [Line Items]
Senior notes, face amount				$ 350,000,000
Senior notes, issued date					Nov. 30, 2015
Senior notes, interest rate during period				3.80%	3.80%
Senior notes, maturity year				2025	2025
Senior notes, issued at par percentage				99.975%
Senior notes, discount				$ 100,000	$ 82,000		$ 86,000
Senior notes, issuance cost				$ 3,200,000
5.30% Senior Notes 2015 [Member]
Debt Instrument [Line Items]
Refinanced under revolving credit facility			$ 100,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Aggregate maximum borrowing capacity		$ 500,000,000
Maturity date of debt instruments					Jun. 07, 2021
Senior notes, face amount		300,000,000
Senior notes, maturity year					2021
Proceeds from term loan		$ 210,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate maximum borrowing capacity								$ 450,000,000	$ 350,000,000
Period of unsecured revolving credit agreement					5 years
Letters of credit					$ 50,000,000
Increase in maximum borrowing capacity								$ 100,000,000
Maturity date of debt instruments					Oct. 16, 2019
Annual facility fee, percentage					0.15%
Revolving Credit Facility [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Refinanced under revolving credit facility	$ 164,800,000