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Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents are Deposited in Financial Institutions (Detail) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | $ 407,256,837 | $ 351,485,602
Mainland PRC |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 23,652,778 | 15,208,156
Mainland PRC | RMB [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 13,639,079 | 7,134,552
Mainland PRC | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 10,013,699 | 8,073,604
HK |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 105,648,830 | 80,904,898
HK | RMB [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 8,896 |
HK | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 105,481,683 | 80,904,898
HK | HKD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 158,251 |
AE |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 243,896,370 | 187,907,751
AE | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 237,038,304 | 164,143,913
AE | United Arab Emirates Dirham [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 6,858,066 | 23,763,838
US |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 465,475 | 10,176,282
US | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 465,475 | 10,176,282
SG |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 13,593,384 | 57,288,515
SG | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 13,359,499 | $ 57,288,515
SG | SGD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 233,885 |
GB |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | 20,000,000 |
GB | USD [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents | $ 20,000,000 |

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- 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 https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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