Segment Reporting, Geographic Information, and Significant Customers - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Number of reporting segment	1
Net Revenues [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Revenue by major customer	47.00%	24.00%	32.00%
Maximum [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Long-lived assets outside United States of America	10.00%	10.00%	10.00%
Maximum [Member] | Net Revenues [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Revenue by major customer	10.00%
Maximum [Member] | Outstanding Accounts and Other Receivable [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Outstanding accounts and other receivable, percentage	10.00%
Minimum [Member] | Net Revenues [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Revenue by major customer	10.00%
Minimum [Member] | Outstanding Accounts and Other Receivable [Member]
Segment Reporting, Geographic Information, and Significant Customers [Line Items]
Outstanding accounts and other receivable, percentage	10.00%