XML 47 R37.htm IDEA: XBRL DOCUMENT v3.21.2
GOODWILL AND LONG-LIVED ASSETS - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
reportingUnit
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Finite-Lived Intangible Assets [Line Items]        
Goodwill impairment $ 0 $ 0 $ 0 $ 109,486,000
Number of reporting units | reportingUnit 2      
Long-lived asset impairment $ 0 0 0 22,351,000
Intangible asset amortization expense 2,100,000 2,500,000 6,728,000 7,378,000
Restructuring and related charges        
Finite-Lived Intangible Assets [Line Items]        
Long-lived asset impairment   3,300,000    
Restructuring and related charges:        
Finite-Lived Intangible Assets [Line Items]        
Impairment of right-of-use assets and leasehold improvements $ 7,700,000 $ 3,300,000 $ 7,700,000 $ 17,200,000
Minimum        
Finite-Lived Intangible Assets [Line Items]        
Intangible assets, useful life     1 year  
Maximum        
Finite-Lived Intangible Assets [Line Items]        
Intangible assets, useful life     10 years