Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.22.2
Related Party Transactions (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
China Joint Venture          
Related Party Transaction [Line Items]          
Joint venture ownership 80.00% 80.00% 80.00% 80.00%  
China Joint Venture | Fosun Pharma Member          
Related Party Transaction [Line Items]          
Joint venture ownership, noncontrolling party 20.00% 20.00% 20.00% 20.00%  
China Joint Venture | Subsidiaries | Notes Receivable          
Related Party Transaction [Line Items]          
Related party transaction, amount $ 0 $ 0 $ 0 $ 0  
NSP China | Subsidiaries          
Related Party Transaction [Line Items]          
Notes receivable, related parties, current 0   0   $ 1,200,000
NSP China | Subsidiaries | Company's Joint Venture Partner          
Related Party Transaction [Line Items]          
Notes receivable, related parties, current $ 0   $ 0   $ 300,000
NSP China | Subsidiaries | Notes Receivable          
Related Party Transaction [Line Items]          
Related party transaction, rate     3.00%