Accrued Liabilities - Carrying Value of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued Liabilities and Other Liabilities [Abstract]
Wages, severance and related taxes	$ 100,324	$ 65,892
Deferred revenue	60,946	53,371
Accrued rebates	55,525	32,192
Accrued interest	20,847	20,610
Employee benefits	25,290	27,707
Lease liabilities	18,324	14,840
Other (individual items less than 5% of total current liabilities)	53,060	62,029
Accrued liabilities	$ 334,316	$ 276,641