Leased Assets and Liabilities (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flow Information
Operating cash outflows - operating leases	$ 59,748	$ 52,565	$ 44,252
Operating cash outflows - finance leases	2,826	949	700
Financing cash outflows - finance leases	7,707	4,223	3,096
Leased assets obtained in exchange for new lease obligations
Operating leases	48,662	38,641	87,160
Finance leases	$ 30,840	$ 17,741	$ 4,072