Leases (Supplemental Balance Sheet Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
Operating lease right-of-use assets	$ 154,685	$ 187,129
Accrued expenses and other current liabilities	57,006	48,359
Operating lease liabilities	166,014	195,767
Total operating lease liabilities	$ 223,020	$ 244,126
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current