Restructuring Charges (Components of Restructuring Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Severance	$ 20,965		$ 24,022
Facilities and other	1,478		2,020
Total	22,443	$ 4,224	26,042	$ 8,408
The 2023 Plan
Restructuring Cost and Reserve [Line Items]
Severance	20,965		20,965
Facilities and other	1,478		1,478
Total	22,443		22,443	0
Prior Plan
Restructuring Cost and Reserve [Line Items]
Severance	0	3,170	3,057	6,377
Facilities and other	0	1,054	542	2,031
Total	$ 0	$ 4,224	$ 3,599	$ 8,408