Restructuring Charges (Components of Restructuring Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Severance	$ 31,557	$ 20,965	$ 34,935	$ 24,022
Facilities and other	286	1,478	1,223	2,020
Total	31,843	22,443	36,158	26,042
2024 Plan
Restructuring Cost and Reserve [Line Items]
Severance	25,537		25,537
Facilities and other	0		0
Total	25,537		25,537
2023 Plan
Restructuring Cost and Reserve [Line Items]
Severance	6,020	20,965	9,398	20,965
Facilities and other	286	1,478	1,223	1,478
Total	$ 6,306	22,443	$ 10,621	22,443
Prior Plan
Restructuring Cost and Reserve [Line Items]
Severance		0		3,057
Facilities and other		0		542
Total		$ 0		$ 3,599