Discontinued Operations - Summary of Financial Results for MBP Titan (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations	$ 60	$ (1,972)	$ 4,599	$ (64,769)
Impairment of goodwill			0	9,635
MBP Titan \| Discontinued Operations, Disposed of by Means Other than Sale, Abandonment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating (gains) expenses	(60)	1,972	(4,599)	38,713
Operating income (loss)	60	(1,972)	4,599	(38,713)
Income (loss) before income taxes	60	(1,972)	4,599	(38,713)
Income (loss) from discontinued operations	$ 60	$ (1,972)	4,599	(38,713)
Impairment of goodwill			$ 0	9,635
Impairment of other noncurrent assets				$ 12,406

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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