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BUSINESS SEGMENTS - Segment Reporting Information Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]            
Restructuring expenses       $ 0 $ 211 $ 1,435
Goodwill and intangible asset impairment       14,760 20,100 42,990
Goodwill impairment charges         19,100 42,990
U.S.            
Segment Reporting Information [Line Items]            
Restructuring expenses           700
Goodwill and intangible asset impairment         20,100 33,200
Goodwill impairment charges $ 19,100 $ 33,200   0 19,100  
International            
Segment Reporting Information [Line Items]            
Restructuring expenses         $ 200 700
Goodwill and intangible asset impairment       $ 14,800    
Goodwill impairment charges     $ 9,700     $ 9,700