Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease right-of-use assets	$ 172,201	$ 181,542
Operating lease liabilities - current portion	22,198	23,047
Operating lease liabilities - non-current portion	171,793	180,898
Total operating lease liabilities	193,991	203,945
Property plant and equipment, gross	225	232
Accumulated depreciation	(152)	(177)
Property plant and equipment, net	73	55
Other current liabilities	41	40
Other long-term liabilities	32	43
Total finance lease liabilities	$ 73	$ 83
Weighted-average remaining lease term - finance leases	2 years	2 years
Weighted-average remaining lease term - operating leases	11 years	11 years
Weighted-average discount rate - finance leases	7.07%	7.07%
Weighted-average discount rate - operating leases	4.63%	4.62%