Employee Benefit Plans - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 29, 2014	Sep. 28, 2013	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013	Jun. 29, 2013
Multiemployer Plans [Line Items]
Employer contribution for pension plan				$ 975
Multiemployer plan withdrawal liability		23,500				21,700
Accretion expense		113
Pension withdrawal and associated expenses	8,167	1,687	0	9,854	0
Multiemployer plans, withdrawal obligation, period increase					0
Payments made to the Central States Fund				1,634
Aggregate payments of multiemployer pension plan withdrawal liability		34,500				32,400
Period of payment of withdrawal liability (in years)		20 years				20 years
Discount rate (in percent)		5.25%
Demand notice multiemployer plan withdrawal liability		35,100
Demand notice aggregate payments of multiemployer plan withdrawal liability		$ 56,000
Multi-Employer Pension Plans
Multiemployer Plans [Line Items]
Defined benefit plan surplus percent on actuarial valuation						14.50%