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BENEFIT PLANS - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Contribution Plan Disclosure        
Employee contribution limit per calendar year (as a percent of pre-tax earnings, up to statutory limit)   75.00%    
Employer contribution per dollar employee contributes up to contribution limit (as a percent)   100.00% 100.00%  
Employer contribution limit per calendar year (as a percent of compensation, up to statutory limit) 3.00% 10.00% 10.00%  
United States        
Defined Contribution Plan Disclosure        
Employer matching contributions during period   $ 10.9 $ 8.6 $ 5.8
Foreign Plan        
Defined Contribution Plan Disclosure        
Employer matching contributions during period   $ 5.4 $ 3.8 $ 3.1