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Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents are Deposited in Financial Institutions (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 351,485,602	$ 236,883,282
CN
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	15,208,156	7,331,406
CN | RMB [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	7,134,552	5,511,982
CN | USD [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	8,073,604	1,819,424
HK
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	80,904,898	133,911,336
HK | USD [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	80,904,898	133,911,336
AE
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	187,907,751	59,063,503
AE | USD [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	164,143,913	35,813,863
AE | United Arab Emirates Dirham [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	23,763,838	23,249,640
US
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	10,176,282	10,127,775
US | USD [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	10,176,282	10,127,775
SG
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	57,288,515	26,449,262
SG | USD [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 57,288,515	$ 26,449,262

X

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

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