v3.19.2
Fair Value Measurements - Assets And Liabilities Measured At Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Assets:    
Equity securities $ 20,856 $ 26,313
Common stock options/warrants 488 855
Total assets 21,408 27,189
Liabilities:    
Contingent consideration 25,568 24,537
Total liabilities 25,568 24,537
Quoted prices in active markets for identical assets (Level 1)    
Assets:    
Equity securities 20,856 26,313
Common stock options/warrants 0 0
Total assets 20,856 26,313
Liabilities:    
Contingent consideration 0 0
Total liabilities 0 0
Significant other observable inputs (Level 2)    
Assets:    
Equity securities 0 0
Common stock options/warrants 488 855
Total assets 552 876
Liabilities:    
Contingent consideration 0 0
Total liabilities 0 0
Significant unobservable inputs (Level 3)    
Assets:    
Equity securities 0 0
Common stock options/warrants 0 0
Total assets 0 0
Liabilities:    
Contingent consideration 25,568 24,537
Total liabilities 25,568 24,537
Forward Contracts    
Assets:    
Forward contracts 64  
Forward Contracts | Quoted prices in active markets for identical assets (Level 1)    
Assets:    
Forward contracts 0  
Forward Contracts | Significant other observable inputs (Level 2)    
Assets:    
Forward contracts 64  
Forward Contracts | Significant unobservable inputs (Level 3)    
Assets:    
Forward contracts $ 0  
Forward Contracts    
Assets:    
Forward contracts   21
Forward Contracts | Quoted prices in active markets for identical assets (Level 1)    
Assets:    
Forward contracts   0
Forward Contracts | Significant other observable inputs (Level 2)    
Assets:    
Forward contracts   21
Forward Contracts | Significant unobservable inputs (Level 3)    
Assets:    
Forward contracts   $ 0

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