Convertible Debt and Notes Payable - Outstanding Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Convertible debt	$ 0	$ 80,808	[1]
Note payable	173,895	307,653
Term Loan	290,151	0
Other Notes Payable	13,340	72,505
Finance Lease, Liability	2,117	2,909
Outstanding debt	$ 479,503	$ 463,875

[1] The carrying amount of the convertible debt includes an unamortized discount of $6.7 million as of December 31, 2020.