Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease right-of-use assets	$ 181,542	$ 200,417
Operating lease liabilities - current portion	23,047	23,971
Operating lease liabilities - non-current portion	180,898	200,037
Total operating lease liabilities	203,945	224,008
Property plant and equipment, gross	232	363
Accumulated depreciation	(177)	(338)
Property plant and equipment, net	$ 55	$ 25
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total property and equipment	Total property and equipment
Other current liabilities	$ 40	$ 28
Other long-term liabilities	43
Total finance lease liabilities	$ 83	$ 28
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Weighted-average remaining lease term - finance leases	2 years	1 year
Weighted-average remaining lease term - operating leases	11 years	11 years
Weighted-average discount rate - finance leases	7.07%	5.21%
Weighted-average discount rate - operating leases	4.62%	4.55%