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Business Segments, Concentration of Credit Risk and Significant Customers - Schedule of Customers Who Accounted for at Least 10% of Total Net Revenue (Detail) - Net Revenues - Customer Concentration	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Customer A
Significant Customers
Percentage of concentration risk	30.00%	32.00%	46.00%
Customer B
Significant Customers
Percentage of concentration risk	17.00%	18.00%	17.00%
Customer C
Significant Customers
Percentage of concentration risk	14.00%
Customer D
Significant Customers
Percentage of concentration risk	13.00%	18.00%
Customer E
Significant Customers
Percentage of concentration risk		15.00%	11.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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