SEGMENT INFORMATION, GEOGRAPHIC INFORMATION AND CUSTOMER CONCENTRATION - Narrative (Details)	12 Months Ended
Dec. 31, 2021 country segment	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Number of operating segments \| segment	2
Customer Concentration Risk \| Revenue Benchmark \| Non-US
Segment Reporting Information [Line Items]
Number of countries accounting for more than ten percent of non united states revenue \| country	0
Concentration risk (as a percent)	10.00%	10.00%	10.00%
Customer Concentration Risk \| Revenue Benchmark \| Comcast
Segment Reporting Information [Line Items]
Concentration risk (as a percent)	26.00%	20.00%	23.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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