Cash Flows (Summary of Non-Cash Activities and Other Supplemental Data) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Non-Cash Investing and Financing Activities:
Operating lease additions	$ 3,023	$ 1,891
Capital expenditures incurred but not yet paid	1,402	6,002
Contingent consideration for purchase of noncontrolling interests	0	2,806
Supplemental Data:
Cash interest paid	71,993	58,539
Income taxes paid, net	$ 31,438	$ 33,793