Long-Term Debt - KFPC (Details) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) facility	Dec. 31, 2021 TWD ($) facility
Debt Instrument [Line Items]
Outstanding amount | $	$ 897,340
KFPC Loan Agreement
Debt Instrument [Line Items]
Outstanding amount	$ 17,900	$ 494.0
Interest rate during period	1.80%
Revolving Credit Facility | Kraton Formosa Polymers Corporation, Expires September 29, 2018
Debt Instrument [Line Items]
Number of revolving credit facilities | facility	4	4
Credit facility, borrowing capacity	$ 90,400	$ 2,500.0
KFPC Short Term Facility
Debt Instrument [Line Items]
Outstanding amount	$ 49,900	$ 1,400.0