Amount of funds committed to investment company from investors.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 205
-Section 50
-Paragraph 25
-URI https://asc.fasb.org/extlink&oid=25866437&loc=d3e10491-115837

Name:	us-gaap_InvestmentCompanyCommittedCapital
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Commitment and Contingencies - Additional Information (Detail) - 12 months ended Dec. 31, 2022 $ in Millions, ¥ in Billions	CNY (¥)	USD ($)	USD ($)
Network Infrastructure and Buildings
Commitments and Contingencies Disclosure [Line Items]
Capital commitments contracted not yet reflected in financial statements	¥ 2.6		$ 370
Obligations related to the entity's directors and officers
Commitments and Contingencies Disclosure [Line Items]
Investment commitments	¥ 1.3	$ 187