Concentration of Risk (Details) - customer	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Total revenue | Customer concentration risk
Concentration of Risk
Number of customers	2	2	3	1
Total revenue | Customer concentration risk | First customer
Concentration of Risk
Percentage of concentration risk	19.30%	19.70%	15.30%	24.40%
Total revenue | Customer concentration risk | Second customer
Concentration of Risk
Percentage of concentration risk	11.60%	10.20%	10.70%
Total revenue | Customer concentration risk | Third customer
Concentration of Risk
Percentage of concentration risk			10.30%
Accounts receivable | Credit concentration risk
Concentration of Risk
Number of customers			3		2
Accounts receivable | Credit concentration risk | First customer
Concentration of Risk
Percentage of concentration risk			30.50%		29.10%
Accounts receivable | Credit concentration risk | Second customer
Concentration of Risk
Percentage of concentration risk			13.20%		13.60%
Accounts receivable | Credit concentration risk | Third customer
Concentration of Risk
Percentage of concentration risk			10.60%