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Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2020
Tax Credit Carryforward [Line Items]      
Tax benefit associated with making a check-the-box election to treat Aesynt as a U.S. disregarded entity   $ 4,200  
Net tax expense on sale of intellectual property rights $ 7,400    
Valuation allowance 1,186   $ 1,199
Unrecognized tax benefits that would impact tax expense 16,800   18,200
Uncertain tax positions, interest and penalties 500 500 400
Interest and penalties accrued $ 1,000 $ 1,400 1,400
State and Local Jurisdiction      
Tax Credit Carryforward [Line Items]      
Net operating loss     6,000
State and Local Jurisdiction | Research Tax Credit Carryforward      
Tax Credit Carryforward [Line Items]      
Tax credit carryforward amount     17,000
Foreign Tax Authority      
Tax Credit Carryforward [Line Items]      
Net operating loss     29,700
Internal Revenue Service (IRS) | Research Tax Credit Carryforward      
Tax Credit Carryforward [Line Items]      
Tax credit carryforward amount     $ 1,300