Discontinued Operations - Carrying Value of Major Classes of Assets and Liabilities for MBP Titan (Details) - Discontinued Operations, Disposed of by Means Other than Sale, Abandonment - MBP Titan - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Property, plant and equipment, net	$ 0	$ 586
Right-of-use assets	0	9,131
Other assets	0	136
Total assets held for sale or abandonment	0	9,853
Liabilities
Lease liabilities, current	0	1,890
Other current liabilities	0	619
Lease liabilities, net of current portion	0	11,538
Total liabilities held for sale or abandonment	$ 0	$ 14,047