Segment Reporting, Geographic Information, and Significant Customers - Summary of Customers Comprising 10% or Greater of Outstanding Accounts and Other Receivable (Parenthetical) (Detail) (Maximum [Member], Outstanding Accounts and Other Receivable [Member])	Dec. 31, 2013
Maximum [Member] | Outstanding Accounts and Other Receivable [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Outstanding accounts and other receivable, percentage	10.00%