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Debt - Summary of Total Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt	$ 4,503	$ 29,420
Less: current portion of long-term debt	(1,039)	(4,381)
Long-term debt	3,464	25,039
Notes Payable to Banks
Debt Instrument [Line Items]
Total debt	$ 4,503	29,420
Equipment Note 6 | Notes Payable to Banks
Debt Instrument [Line Items]
Stated Interest Rate (per annum)	2.89%
Term (years)	7 years
Total debt	$ 0	12,896
Equipment Note 7 | Notes Payable to Banks
Debt Instrument [Line Items]
Stated Interest Rate (per annum)	3.09%
Term (years)	5 years
Total debt	$ 0	6,980
Equipment Note 8 | Notes Payable to Banks
Debt Instrument [Line Items]
Stated Interest Rate (per annum)	2.75%
Term (years)	5 years
Total debt	$ 4,503	5,513
Equipment Note 9 | Notes Payable to Banks
Debt Instrument [Line Items]
Stated Interest Rate (per annum)	3.01%
Term (years)	7 years
Total debt	$ 0	4,031
Revolving Credit Facility
Debt Instrument [Line Items]
Term (years)	5 years
Total debt	$ 0	$ 0

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Contractual interest rate for funds borrowed, under the debt agreement.

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