Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Related party transactions
Operating expenses	$ 48,400	$ 33,176	$ 91,183	$ 66,881
Cost of revenue	13,176	12,147	27,094	25,665
Accounts payable	9,124		9,124		$ 6,953
Accounts receivable, net of allowance for expected credit losses	23,549		23,549		32,141
Emission Inc.
Related party transactions
Operating expenses	300		300
Accounts payable	0		0
Harvard University
Related party transactions
Related party revenue	0	0	500	500
Cost of revenue	0	$ 0	0	$ 0
Accounts payable	0		0		0
Accounts receivable, net of allowance for expected credit losses	600		600		0
Tufts
Related party transactions
Accounts payable	$ 0		$ 0		$ 0