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.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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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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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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Contract payment term related to advertising arrangements.

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Estimated weighted average life of product.

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Revenue from Contracts with Customers - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Current deferred revenue recognized	$ 53,400		$ 423,300
Increase (decrease) in accounts receivable			28,474	$ 32,436
Peak [Member]
Disaggregation Of Revenue [Line Items]
Increase (decrease) in accounts receivable			$ 64,300
Minimum [Member]
Disaggregation Of Revenue [Line Items]
Contract payment term related to advertising arrangements			30 days
Maximum [Member]
Disaggregation Of Revenue [Line Items]
Contract payment term related to advertising arrangements			60 days
Durable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Estimated weighted average life of product	9 months	9 months	10 months	9 months
Sales Revenue, Net [Member] \| Product Concentration Risk [Member] \| Consumable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Percentage of online game revenue	23.00%	24.00%	25.00%	28.00%
Sales Revenue, Net [Member] \| Product Concentration Risk [Member] \| Durable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Percentage of online game revenue	77.00%	76.00%	75.00%	72.00%