Restructuring, Impairment and Costs of Terminated Program - Restructuring Reserve Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	12 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Dec. 31, 2023
Employee Severance
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance		$ 196	$ 5,483	$ 3,299	$ 196	$ 3,299
Expense recognized during the period			1,943	5,483	0
Payments during the period			(6,624)	(3,299)	(196)
Restructuring reserve, ending balance	$ 0		802	5,483	0	196
Employee Severance | 2023 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance		196	5,483	0	196	0
Expense recognized during the period			1,943	5,483	0	7,900
Payments during the period		(200)	(6,624)	0	(196)
Restructuring reserve, ending balance	0		802	5,483	0	196
Employee Severance | 2022 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance		0	0	3,299	0	3,299
Expense recognized during the period			0	0	0
Payments during the period			0	(3,299)	0
Restructuring reserve, ending balance	0		0	0	0	0
Contract Termination and Other Costs | Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	5,589	5,542	7,493	7,710	5,542	7,710
Expense recognized during the period	4,960	975	0	912
Payments during the period	(887)	(928)	(1,264)	(1,129)
Restructuring reserve, ending balance	$ 9,662	$ 5,589	$ 6,229	$ 7,493	$ 9,662	$ 5,542