SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 01, 2022 USD ($)	Dec. 31, 2018 USD ($)
Concentration Risk [Line Items]
Impairment charges for long-lived assets		$ 0	$ 0	$ 0
Impairment of goodwill	$ 0	0	0	0
Advertising expense		$ 1,000,000	1,100,000	700,000
Net accumulated gain or loss as a proportion of projected plan benefit obligation (as a percent)		10.00%
Defined benefit plan, actuarial gain (loss), immediate recognition as component in net periodic benefit (cost) credit		$ 0
Number of operating segments | segment		2
Stockholders' equity	295,913,000	$ 295,913,000	258,302,000	252,446,000		$ 228,250,000
Convertible debt (mezzanine equity)	883,000	883,000	0
Additional Paid-in Capital
Concentration Risk [Line Items]
Stockholders' equity	2,387,039,000	2,387,039,000	2,353,559,000	2,327,359,000		2,296,795,000
Cumulative Effect, Period of Adoption, Adjustment
Concentration Risk [Line Items]
Stockholders' equity						$ 1,400,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06
Concentration Risk [Line Items]
Convertible debt (mezzanine equity)	(900,000)	(900,000)
Debt instrument, unamortized discount					$ 15,200,000
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-in Capital | Accounting Standards Update 2020-06
Concentration Risk [Line Items]
Stockholders' equity	$ (32,200,000)	$ (32,200,000)
Minimum
Concentration Risk [Line Items]
Lessee, operating lease, term of contract (in years)	1 year	1 year
Maximum
Concentration Risk [Line Items]
Lessee, operating lease, term of contract (in years)	11 years	11 years
Furniture and fixtures
Concentration Risk [Line Items]
Property, plant and equipment estimated useful life (in years)		5 years
Software
Concentration Risk [Line Items]
Property, plant and equipment estimated useful life (in years)		3 years
Machinery and equipment
Concentration Risk [Line Items]
Property, plant and equipment estimated useful life (in years)		4 years
Foreign Exchange Forward
Concentration Risk [Line Items]
Derivative, term of contract (in months)		3 months
TVN
Concentration Risk [Line Items]
Research and development tax credits receivables from French government		$ 5,700,000	4,500,000	4,700,000
Other Expense
Concentration Risk [Line Items]
Remeasurement (gains) losses		$ 600,000	$ 1,000,000	$ 1,500,000