Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.21.2
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]      
Right of use assets $ 9,635 $ 9,635 $ 1,810
Lease liability 9,689 9,689  
Dental Arts Labs      
Related Party Transaction [Line Items]      
Lease liability 3,700 3,700  
Annual commitment 600 600  
Lease expense paid 100 100  
Operating Lease Agreement With A T M R E LLC      
Related Party Transaction [Line Items]      
Right of use assets 500 500  
Lease liability 500 500  
Annual commitment 200 200  
Operating Lease Agreement With JES Besitzgesellschaft GmbH      
Related Party Transaction [Line Items]      
Right of use assets 200 200  
Lease liability 200 200  
Annual commitment 100 100  
Operating Lease Agreement With Sitraco (UK) Limited      
Related Party Transaction [Line Items]      
Right of use assets 200 200  
Lease liability 200 200  
Annual commitment $ 100 $ 100