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Investments (Schedule of Long-term Investments) (Details)
$ in Thousands, € in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
 [1]
Dec. 31, 2021
EUR (€)
Schedule of Investments [Line Items]              
Carrying value       $ 15,811 $ 30,701    
Equity method investments       787 393    
Total investments       16,598 31,094    
Proceeds from sale of Respicardia investment and loan       23,057 0 [1] $ 0  
Equity method investments, required funding       5,700     € 5.0
ShiraTronics,Inc              
Schedule of Investments [Line Items]              
Carrying value       3,331 2,045    
Noctrix Health, Inc.              
Schedule of Investments [Line Items]              
Carrying value       3,159 1,359    
A Lung Technologies Inc              
Schedule of Investments [Line Items]              
Carrying value       3,000 3,000    
A Lung Technologies Inc | Convertible Notes Receivable              
Schedule of Investments [Line Items]              
Notes receivable gross       2,500 2,500    
Ceribell, Inc.              
Schedule of Investments [Line Items]              
Carrying value       3,000 3,000    
MD Start II              
Schedule of Investments [Line Items]              
Carrying value       1,135 1,227    
Proceeds from cash dividend received   $ 3,100          
Rainbow Medical Ltd              
Schedule of Investments [Line Items]              
Carrying value       1,111 1,201    
Highlife S.A.S.              
Schedule of Investments [Line Items]              
Carrying value       1,075 1,163    
Respicardia Inc.              
Schedule of Investments [Line Items]              
Carrying value       0 17,706    
Zoll Medical Corporation | Investee              
Schedule of Investments [Line Items]              
Proceeds from sale of Respicardia investment and loan $ 23,100            
Gain on sale of investment     $ 4,600        
Zoll Medical Corporation | Prepaid Expenses and Other Current Assets | Investee              
Schedule of Investments [Line Items]              
Outstanding loans       $ 17,700 $ 800    
[1] The consolidated statements of cash flows for the years ended December 31, 2020 and 2019 have been revised. For further details refer to “Note 1. Nature of Operations.”