Other (Income) Expense - Schedule of Other (Income) Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Income And Expenses [Abstract]
Acquisition expenses		$ 1,339
Loss on sale of assets	$ 24	83
Other	92	118
Other expense	116	1,540
Change in fair value of Fathom and Sponsor Earnout Shares	(18,970)
Change in fair value of Warrants	(8,100)
Other	(95)	(94)
Other income	(27,165)	(94)
Other (income) and expense, net	$ (27,049)	$ 1,446