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Financial Instruments - Carrying And Estimated Fair Value Of Other Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Acquisition-related contingent consideration, including current portion $ 15,110 $ 20,118
Long-term debt 297,158 286,131
Total 312,268 306,249
Level 1 | Estimate of Fair Value Measurement    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Acquisition-related contingent consideration, including current portion 0 0
Long-term debt 0 0
Total 0 0
Level 2 | Estimate of Fair Value Measurement    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Acquisition-related contingent consideration, including current portion 0 0
Long-term debt 466,619 396,982
Total 466,619 396,982
Level 3 | Estimate of Fair Value Measurement    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Acquisition-related contingent consideration, including current portion 15,110 20,118
Long-term debt 0 0
Total $ 15,110 $ 20,118