Leases (Components of Operating Lease Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 91,613	$ 96,078	$ 113,669
Short-term and month-to-month lease cost	30,754	17,724	21,862
Variable lease cost	21,265	20,889	18,718
Sublease income	(14,734)	(16,918)	(18,508)
Total net lease cost	$ 128,898	$ 117,773	$ 135,741