Commitments and Contingencies - Narrative - Legal Matters (Details)			7 Months Ended	12 Months Ended
	Mar. 23, 2016 USD ($) LegalMatter	Apr. 03, 2013 USD ($)	Jun. 30, 2016 USD ($) LegalMatter	Nov. 30, 2011 USD ($) LegalMatter plantiff	Jun. 03, 2016 case	Jan. 16, 2015 USD ($) citation	Dec. 18, 2014 USD ($)	Nov. 30, 2013 employee
Loss Contingencies [Line Items]
Number of related cases under motion to consolidate | case					2
Asbestos Litigation
Loss Contingencies [Line Items]
Unresolved asbestos cases pending | LegalMatter			65
Accrued estimated liability			$ 0
Asbestos Litigation | AMEC PLC
Loss Contingencies [Line Items]
Unresolved asbestos cases pending | LegalMatter	52			16
Number of Lawsuits, Limitation Period Expired | LegalMatter	5
Number of plaintiffs | plantiff				271
Reimbursement of legal fees and expenses (over)				$ 1,700,000
Legal fees and expenses (less than $0.5 million - 3/23/16)	$ 500,000	$ 3,000,000
Litigation liability accrued			300,000
Expenditures recoverable			0
Inflective Inc. Litigation | Inflective, Inc.
Loss Contingencies [Line Items]
Litigation liability accrued			0
Damages							$ 3,000,000
Socorro Litigation | James Chavez, Andrew Baca, and Spouses
Loss Contingencies [Line Items]
Litigation liability accrued			$ 0
Occupational Safety | State of California, Division of Occupational Safety & Health | Rancho Cordova Facility
Loss Contingencies [Line Items]
Damages						$ 100,000
Number of injured employees | employee								2
Number of deceased employees | employee								1
Number of citations | citation						9