Segment Operating Results - Assets by Geographic Area (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total Assets	$ 3,011,488	$ 3,802,657	$ 2,947,448
United States [Member]
Segment Reporting Information [Line Items]
Total Assets	2,419,561	3,199,435
Europe And Other [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 591,927	$ 603,222