Other Receivables and Current Assets and Other Accrued Expenses and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Receivables and Current Assets and Other Accrued Expenses and Liabilities [Abstract]
Receivables related to unrecognized revenue	$ 177,679	$ 167,144
Income taxes receivable, including overpayments and refunds	26,672	13,709
Prepaid expenses and other current assets	45,268	35,260
Total other receivables and current assets	249,619	216,113
Consumption, sales and VAT tax liabilities	36,398	24,192
Accrued expenses and other current liabilities	106,549	75,367
Total other accrued expenses and liabilities	$ 142,947	$ 99,559