Debt - Note Payable (Details) $ in Thousands		3 Months Ended			12 Months Ended
	Oct. 30, 2015 liability	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) installment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Payments of notes payable					$ 2,426	$ 2,426	$ 0
Mediscan
Debt Instrument [Line Items]
Number of contingent liabilities assumed | liability	2
Recognition of earnout payment liability				$ 7,400
Payment for contingent liability				100
Mediscan | Earnout Notes Payable
Debt Instrument [Line Items]
Earnout performance criterion, conversion to note payable				$ 7,300
Note payable, number of installments paid | installment					2
Payments of notes payable		$ 2,400	$ 2,400
Notes payable					$ 2,500
Stated interest rate (percent)					2.00%