Divestiture Divestiture (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2017	Mar. 31, 2016	Nov. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses, Net of Cash Divested				$ 0	$ 61,100
Loss on divestiture	$ 0	$ 2,557	$ (133,300)	$ 0	(130,750)
Non-Core Businesses Sold to Madison Industries [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Book Value						$ 191,900
Infrastructure [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on divestiture					127,200
Industrial [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on divestiture					$ 3,600