Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease right-of-use assets	$ 200,396	$ 227,367
Operating lease liabilities - current portion	22,950	23,737
Operating lease liabilities - non-current portion	200,855	223,364
Total operating lease liabilities	223,805	247,101
Property plant and equipment, gross	352	374
Accumulated depreciation	(320)	(311)
Property plant and equipment, net	32	63
Other current liabilities	33	40
Other long-term liabilities	3	28
Total finance lease liabilities	$ 36	$ 68
Weighted-average remaining lease term - finance leases	1 year	2 years
Weighted-average remaining lease term - operating leases	11 years	11 years
Weighted-average discount rate - finance leases	5.21%	5.24%
Weighted-average discount rate - operating leases	4.56%	4.47%