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NON-U.S. EMPLOYEE DEFINED BENEFIT PLANS - Narrative (Details) - USD ($)
 2 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Retirement Benefits [Abstract]      
Curtailment gain     $ 500,000
Benefits paid $ 3,000 $ 683,000 273,000
One-time lump sum payments to participants   $ 660,000 250,000
Net gains and losses amortization threshold   10.00%  
Expected amortization of gain (loss) in the next fiscal year   $ 176,000  
Fair value of combined plan assets 3,893,000 1,830,000 3,842,000
Participant contributions $ 5,000 24,000 5,000
Fixed contributions per employee, percent 5.00%    
Employer pension plan contributions $ 22,000 139,000 $ 292,000
Expected future employer contributions to pension plans in 2020   $ 200,000