Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 30, 2011
Operating Leases, Future Minimum Payments Due [Abstract]
2014	$ 5,384,000
2015	3,997,000
2016	2,600,000
2017	2,179,000
2018	1,915,000
Thereafter	8,419,000
Total	24,494,000
Rental expense	3,600,000	3,300,000	3,000,000
Open purchase order commitments	57,000,000
Maximum purchase quantities and supplier inventory commitments	43,000,000
Standby letters of credit commitments	3,000,000
Guarantees of subsidiary debt	10,000,000
Net operating earnings since the date of acquisition	100,000,000
Cost-method investment	422,297,000	426,813,000
Buildings
Operating Leases, Future Minimum Payments Due [Abstract]
2014	2,170,000
2015	1,914,000
2016	1,350,000
2017	1,338,000
2018	1,360,000
Thereafter	7,655,000
Total	15,787,000
Vehicles & Equipment
Operating Leases, Future Minimum Payments Due [Abstract]
2014	3,214,000
2015	2,083,000
2016	1,250,000
2017	841,000
2018	555,000
Thereafter	764,000
Total	$ 8,707,000