SEGMENT REPORTING, GEOGRAPHIC INFORMATION, AND SIGNIFICANT CUSTOMERS - Summary of Revenues by Geographic Areas (Detail) - Net Revenues - Geographic Concentration Risk	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Concentration risk	100.00%	100.00%	100.00%
North America
Concentration Risk [Line Items]
Concentration risk	77.00%	22.00%	32.00%
Europe
Concentration Risk [Line Items]
Concentration risk	11.00%	15.00%	8.00%
Asia
Concentration Risk [Line Items]
Concentration risk	12.00%	63.00%	60.00%

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://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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