Commitments and Contingencies (Details) - USD ($)	3 Months Ended
	Sep. 30, 2016	Jun. 30, 2016
Loss Contingencies [Line Items]
Accrued litigation-related liabilities	$ 4,627,000	$ 4,869,000
Insurance recovery receivables related to litigation related reserves	2,254,000	$ 2,661,000
Amount of potential litigation related liabilities covered by insurance	2,100,000
Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	25,000,000
Amount of potential litigation related liabilities covered by insurance	4,000,000
Minimum | Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 0
Loss Contingency, Expected Payment Period	1 year
Maximum
Loss Contingencies [Line Items]
Possible increase in potential litigation related liabilities	$ 11,300,000
Maximum | Environmental Restoration Costs
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 18,600,000
Loss Contingency, Expected Payment Period	5 years
TRC vs LVI Group Services Inc | Pending Litigation | Favorable Regulatory Action
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount	$ 3,000,000
TRC vs LVI Group Services Inc | Pending Litigation | Unfavorable Regulatory Action
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 9,900,000