INTANGIBLE ASSETS AND GOODWILL - Schedule of Finite Lived Intangible Assets Net Balances and Weighted Average Useful Lives (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 972,056	$ 963,690
Less: Accumulated amortization	(67,433)	(20,411)
Intangibles, net	904,623	943,279
Finite-lived and indefinite-lived intangible assets, gross	1,172,548	1,163,961
Finite-lived and indefinite-lived intangible assets, net	1,105,115	1,143,550
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	200,000	200,000
Acquired developed technology
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 492	$ 271
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	15 years 4 months 24 days	15 years 10 months 24 days
Finite-lived intangible assets, gross	$ 100,700	$ 100,700
Less: Accumulated amortization	(4,109)	(961)
Intangibles, net	$ 96,591	$ 99,739
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	13 years 3 months 18 days	13 years 7 months 6 days
Finite-lived intangible assets, gross	$ 2,700	$ 2,700
Less: Accumulated amortization	(314)	(224)
Intangibles, net	$ 2,386	$ 2,476
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	8 years 4 months 24 days	8 years 9 months 18 days
Finite-lived intangible assets, gross	$ 22,689	$ 22,690
Less: Accumulated amortization	(7,105)	(5,974)
Intangibles, net	$ 15,584	$ 16,716
Acquired developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	9 years 6 months	9 years 10 months 24 days
Finite-lived intangible assets, gross	$ 814,171	$ 806,371
Less: Accumulated amortization	(52,766)	(12,345)
Intangibles, net	$ 761,405	$ 794,026
Supply agreements
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	7 years	7 years 6 months
Finite-lived intangible assets, gross	$ 30,000	$ 30,000
Less: Accumulated amortization	(2,549)	(571)
Intangibles, net	$ 27,451	$ 29,429
Internally developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining useful life of finite-lived intangible asset (in years)	2 years 3 months 18 days	2 years 6 months
Finite-lived intangible assets, gross	$ 1,796	$ 1,229
Less: Accumulated amortization	(590)	(336)
Intangibles, net	$ 1,206	$ 893