Commitments and Contingencies (Details) (USD $)	6 Months Ended
	Dec. 26, 2014	Jun. 30, 2014
Loss Contingencies [Line Items]
Accrued litigation-related liabilities	$ 3,665,000	$ 5,410,000
Insurance recovery receivables related to litigation related reserves	2,118,000	4,098,000
Possible increase in potential litigation related liabilities	10,500,000
Amount of potential litigation related liabilities covered by insurance	500,000
Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	27,600,000
Loss contingency beyond the limits or term of insurance, minimum	0
Loss contingency beyond the limits or term of insurance, maximum	20,600,000
Amount of potential litigation related liabilities covered by insurance	4,960,000
Minimum | Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Expected Payment Period	1 year
Maximum | Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Expected Payment Period	5 years
TRC vs LVI Group Services Inc [Member] | Pending Litigation [Member] | Favorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount	3,000,000
TRC vs LVI Group Services Inc [Member] | Pending Litigation [Member] | Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 9,600,000