Additional Balance Sheet Detail and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Other Accrued Liabilities		$ 11,081	$ 6,241
Unrealized Gain (Loss) on Derivatives		1,981	10
Accrued Income Taxes, Current		11,766	7,874
Accrual for Taxes Other than Income Taxes, Current		5,321	3,318
Interest Payable, Current		7,957	8,256
Operating Lease, Liability, Current		9,975	11,560
Accrued Salaries, Current		31,722	29,868
Flow-through share premium received (including over-allotment)		5,563	0
Deferred Revenue	[1]	55,547	25,736
Accrued liabilities and other		$ 140,913	$ 92,863

[1] See Note 18 -- Commitments and Contingencies for additional details on deferred revenue liabilities.