GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill - net book value, begging of period	$ 1,428,610	$ 1,425,542	$ 632,469
Acquisitions	48,954	3,068	793,073
Goodwill - net book value, end of period	$ 1,477,564	$ 1,428,610	$ 1,425,542