XML 153 R134.htm IDEA: XBRL DOCUMENT v3.20.4
Restructuring and Related Activities - Additional Information (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
center
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Restructuring Cost and Reserve [Line Items]        
Restructuring charges | $ $ 1,400 $ 1,439 $ 0 $ 571
Phase 1 [Member]        
Restructuring Cost and Reserve [Line Items]        
Completion date   Jan. 29, 2021    
Phase 2 [Member]        
Restructuring Cost and Reserve [Line Items]        
Completion date   Jun. 30, 2021    
Facility Closing [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring and related cost, number of affected locations | center 8