Sale of METALfx Sale of METALfx (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Apr. 18, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		89.20%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group Including Discontinued Operation Gross Consideration		$ 17.5
Disposal Group Including Discontinued Operation Consideration Held in Escrow		$ 1.2
Disposal Group Including Discontinued Operation Percentage of Gross Consideration Held in Escrow		7.00%
Disposal Group, Including Discontinued Operation, Consideration		$ 16.5
Disposal Group Not Discontinued Operation Gain (Loss) On Disposal Net of Tax	$ 2.3