Commitments and Contingencies (Operating leases) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Commitments and Contingencies.
Operating cash flows from operating leases	$ 5,149	$ 10,608
Weighted-average remaining lease term, years	12 years 3 months		12 years 9 months 14 days
Weighted-average discount rate, %	13.90%		13.90%