Leases (Summary of Amounts Recognized in Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating lease assets	$ 52,146	$ 33,387
Finance lease assets	23,895	25,921
Total leased assets	76,041	59,308
Liabilities
Current operating leases	19,580	12,588
Non-current operating leases	31,322	19,835
Total operating lease liabilities	50,902	32,423
Current finance leases	2,118	2,564
Non-current finance leases	10,762	22,522
Total finance lease liabilities	12,880	25,086
Total lease liabilities	$ 63,782	$ 57,509
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Long-term Debt, Current Maturities	Long-term Debt, Current Maturities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term Debt, Excluding Current Maturities	Long-term Debt, Excluding Current Maturities
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net	Property, plant and equipment, net