Discontinued Operations - Non-cash Items and Purchases of Property, Plant and Equipment for MBP Titan (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		$ 13,761	$ 17,516	$ 24,896
Impairment of goodwill	$ 178	0	9,635	87,862
Stock-based compensation expense		13,904	18,366	18,950
Deferred income taxes		(167)	(156)	(3,674)
Noncash (gain) loss on termination of leases		(5,831)	191	0
Cash flows from investing activities
Purchases of property, plant and equipment		(7,247)	(7,527)	(37,883)
Proceeds from sale of assets		3,006	6,484	688
Discontinued Operations, Disposed of by Means Other than Sale, Abandonment | MBP Titan
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		0	2,474	3,647
Impairment of goodwill		0	9,635	0
Impairment of other noncurrent assets		0	12,406	0
(Gain) loss on disposal of assets, net		(464)	67	(316)
Stock-based compensation expense		0	(34)	1,345
Noncash (gain) loss on termination of leases		(4,602)	0	0
Cash flows from investing activities
Purchases of property, plant and equipment		0	(88)	(2,114)
Proceeds from sale of assets		$ 1,083	$ 3,952	$ 29