Description of Business (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Jan. 31, 2022
Description Of Business [Abstract]
Entity incorporation state	DE
Entity incorporation date	Aug. 01, 2012
Cash consideration pursuant to asset purchase agreement		$ 100

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

No definition available.

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant