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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 10, 2019, the Company entered into a Share Purchase Agreement with Archer Daniels-Midland Company (“ADM”) for the sale of all of the shares representing membership interest in its wholly owned subsidiary, Florida Chemical Company, LLC, which represents the CICT segment. Effective February 28, 2019, the Company completed the sale of the CICT segment to ADM for $175.0 million in cash consideration, with $4.4 million temporarily held in escrow by ADM for post-closing working capital adjustments for up to 90 days and $13.1 million temporarily held in escrow by ADM with releases at 6 months, 12 months, and 15 months to satisfy potential indemnification claims. The Company expects to recognize a gain on the sale of approximately $62 million to $66 million, pending post-closing adjustments. Upon closing of the above transaction, the Company repaid the outstanding balance, interest, and fees related to the revolving credit facility on March 1, 2019, and subsequently terminated the Credit Facility with PNC Bank.