Debt - Other Debt Agreements (Details) - EOS Imaging S.A. $ in Millions	4 Months Ended	6 Months Ended
	Apr. 30, 2021 EUR (€) Agreement	Jun. 30, 2021 USD ($)	Jun. 30, 2021 EUR (€)
Line Of Credit Facility [Line Items]
Number of loan agreements | Agreement	2
Debt instrument term	12 months
Percentage of principal state guaranteed	90.00%
Percentage of cost of state guaranty	0.25%
Debt instrument interest-free rate amount	€ 3,266,667
Debt instrument interest rate	1.75%
Debt instrument interest rate amount	€ 1,450,000
Line of credit facility description		The loan capital and loan guaranty costs are payable in full at the end of the 12-month term or the loan may be extended up to 5 additional years.  If the Company choses to extend the debt, the election must be made by the Company between month 8 and month 11.
Line of credit facility extension description		The extension will carry an interest rate at the banks’ refinancing cost, to be applied from year 2 to year 6 and an increased state guaranty cost (50 to 200 bps, as per a scale with company size and extension year).
Loan One
Line Of Credit Facility [Line Items]
Outstanding obligation under inventory financing agreement		$ 0.5	€ 400,000
Loan Two
Line Of Credit Facility [Line Items]
Outstanding obligation under inventory financing agreement		$ 5.1	€ 4,300,000
Maximum
Line Of Credit Facility [Line Items]
Debt instrument loan extended additional period	5 years