Property and Equipment, Net - Property and Equipment, Net (Parenthetical) (Detail)	9 Months Ended
Sep. 30, 2021
Maximum [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Maximum percentage limit for total property and equipment, net for foreign country	10.00%

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.

No definition available.

Name:	us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration