Property, Plant and Equipment - Narratives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment
Depreciation expense	$ 52,289	$ 55,817	$ 53,856
Amortization of right-of-use assets	164	1,755	2,686
Property, plant and equipment, at cost	1,071	10,352
Finance Lease, Right-of-Use Asset, Accumulated Amortization	364	3,703
Additions to property, plant and equipment included in accounts payable	3,229	468	3,791
Capital leased assets, additions	$ 0	83	$ 1,308
Assets held for sale		700
Terminalling and storage
Property, Plant and Equipment
Impairment charge		3,052
Transportation
Property, Plant and Equipment
Impairment charge		$ 1,300