GOODWILL AND INTANGIBLE ASSETS - Intangible Assets by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets [Roll Forward]
Balance, beginning of period	$ 382,982	$ 263,467
Acquisitions	17,922	154,602
Amortization	(35,908)	(34,213)	$ (19,374)
Adjustment to prior year preliminary purchase price allocation	(7,982)	(874)
Balance, end of period	357,014	382,982	263,467
Manufacturing
Intangible Assets [Roll Forward]
Balance, beginning of period	304,485	220,540
Acquisitions	17,922	112,517
Amortization	(29,457)	(27,413)	(16,200)
Adjustment to prior year preliminary purchase price allocation	(10,827)	(1,159)
Balance, end of period	282,123	304,485	220,540
Distribution
Intangible Assets [Roll Forward]
Balance, beginning of period	78,497	42,927
Acquisitions	0	42,085
Amortization	(6,451)	(6,800)	(3,100)
Adjustment to prior year preliminary purchase price allocation	2,845	285
Balance, end of period	$ 74,891	$ 78,497	$ 42,927