The Business - Discontinued Operations (Details) - PCT Segment [Member] - Discontinued Operations [Member] $ in Millions	May 18, 2017 USD ($)
Subsidiary, Sale of Stock [Line Items]
Ownership interest (percent)	80.10%
Hitachi Chemical Co., LTD [Member]
Subsidiary, Sale of Stock [Line Items]
Purchase agreement, additional consideration	$ 4.4
PCT Allendale, LLC [Member] | Hitachi Chemical Co., LTD [Member]
Subsidiary, Sale of Stock [Line Items]
Purchase agreement, aggregate purchase price	$ 75.0