Supplemental Financial Statement Information (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Other Income and Expenses [Abstract]
Cash interest paid	$ 64,511	$ 58,501
Cash income tax payments, net of refunds	11,164	2,180
Capital assets obtained under capital lease obligations	$ 14,017	$ 19,568