Cash Flows (Summary of Non-Cash Activities and Other Supplemental Data) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Non-Cash Investing and Financing Activities:
Capital expenditures incurred but not yet paid	$ 6,002	$ 1,758
Contingent consideration for purchase of noncontrolling interests	2,806	0
Supplemental Data:
Cash interest paid	58,539	54,207
Income taxes paid, net	$ 33,793	$ 45,058