Document Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock Class of Stock [Domain] Class of Stock Common Class A [Member] Class A Ordinary shares Class A ordinary shares Common Class B [Member] Class B Ordinary shares Class B ordinary shares ADR [Member] American Depositary Shares Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Business Contact Document Information [Line Items] Document Entity Information Document Type Document Registration Statement Document Annual Report Document Transition Report Document Shell Company Report Document Period End Date Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, Country Contact Personnel Name Country Region City Area Code Local Phone Number Contact Personnel Email Address Title of 12(b) Security Trading Symbol No Trading Symbol Flag Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Auditor Firm ID Auditor Name Auditor Location CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Table] Statement [Line Items] Statement Assets [Abstract] ASSETS: Assets, Current [Abstract] Current assets: Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents Restricted Cash and Cash Equivalents Restricted cash Restricted cash and cash equivalents Short-term Investments. Short-term investments Short-term investments Deposit Assets Time and structured deposits Time and Structured deposits Derivative Instruments and Hedges, Assets Derivative instruments Derivative instruments-asset Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts receivables (net of allowance of RMB 274,956 and RMB 236 (US$ 34) as of December 31, 2024 and 2025, respectively) Accounts receivables, net Account receivables Other Assets, Current Other current assets (net of allowance of RMB 72,671,045 and RMB 77,493,926 (US$ 11,081,484) as of December 31, 2024 and 2025, respectively) Other current assets Other current assets Assets, Current Total current assets Total current assets Assets, Noncurrent [Abstract] Non-current assets: Non-current assets: Operating Lease, Right-of-Use Asset Right-of-use assets Equity Method Investments Investment in equity method investee The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle) other than equity method investee. Long Term Investments Other Than Equity Long-term investments (including amounts measured at fair value of RMB 15,163,357 and RMB 14,700,093 (US$ 2,102,085) as of December 31, 2024 and 2025, respectively) Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Property and equipment, net Finite-Lived Intangible Assets, Net Intangible assets Other Assets, Noncurrent Other non-current assets (net of allowance of RMB 440,085 and RMB nil (US$ nil) as of December 31, 2024 and 2025, respectively) Assets, Noncurrent Total non-current assets Total non-current assets Assets Total assets TOTAL ASSETS Net asset of VIE, not pledged Liabilities and Equity [Abstract] LIABILITIES AND EQUITY Liabilities, Current [Abstract] Current liabilities: Short-Term Debt Short-term borrowings Operating Lease, Liability, Current Less: Current portion Short-term lease liabilities (including short-term lease liabilities of the consolidated VIEs without recourse to the Company of RMB 67,180 and RMB 44,274 (US$ 6,331) as of December 31, 2024 and 2025, respectively) Short-term lease liabilities Accounts Payable and Other Accrued Liabilities, Current Accrued expenses and other current liabilities (including accrued expenses and other current liabilities of the consolidated VIEs without recourse to the Company of RMB 8,233,771 and RMB 17,207,708 (US$ 2,460,670) as of December 31, 2024 and 2025, respectively) Total Accrued expenses and other current liabilities Accrued Income Taxes, Current Income tax payable (including income tax payable of the consolidated VIEs without recourse to the Company of RMB nil and RMB 17,953,357 (US$ 2,567,296) as of December 31, 2024 and 2025, respectively) Income tax payable Derivative Liability, Current Derivative instruments-liability (including derivative instruments-liability of the consolidated VIEs without recourse to the Company of RMB nil and RMB 7,799,642 (US$ 1,115,334) as of December 31, 2024 and 2025, respectively) Derivative instruments Liabilities, Current Total current liabilities Total current liabilities Liabilities, Noncurrent [Abstract] Non-current liabilities: Operating Lease, Liability, Noncurrent Long-term lease liabilities (including long-term lease liabilities of the consolidated VIEs without recourse to the Company of RMB nil and RMB nil (US$ nil) as of December 31, 2024 and 2025, respectively) Long-term lease liabilities Liabilities, Noncurrent Total non-current liabilities Total non-current liabilities Liabilities Total liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies Stockholders' Equity Attributable to Parent [Abstract] Shareholders' equity Equity: Common Stock, Value, Issued Common stock Ordinary shares Treasury Stock, Value Treasury shares Treasury stock, value Additional Paid in Capital, Common Stock Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income/(loss) Accumulated other comprehensive income/ (loss) Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Ending balance Beginning balance Total equity Liabilities and Equity TOTAL LIABILITIES AND EQUITY Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] Consolidated Entities Variable Interest Entity, Primary Beneficiary [Member] Variable Interest Entity Variable Interest Entity Accounts Receivable, Allowance for Credit Loss, Current Allowance for credit losses Balance at the end of the year Balance at the beginning of the year Allowance for account receivables, net Amount of allowance for other current assets. Allowance For Other Current Assets Less: Allowance for other current assets Balance at the end of the year Balance at the beginning of the year Allowance for other current assets Investments, Fair Value Disclosure Fair value of long-term investments Amount of liabilities classified as other, allowance for other assets non current. Allowance For Other Assets Noncurrent Allowance of other non-current assets Common Stock, Par or Stated Value Per Share Ordinary shares, par value (in dollars per share) Common stock, par value Common Stock, Shares Authorized Ordinary shares, authorized Common Stock, Shares, Issued Ordinary shares, issued Common Stock, Shares, Outstanding Ending balance (in shares) Beginning balance (in shares) Ordinary shares, outstanding CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Product and Service [Axis] Product and Service [Domain] The member represents of delivery service income. Delivery service Income [Member] Delivery service income The member represents of sales income. Sales Income [Member] Sales income and others Represents information related to ordinary shares of A and B classes. Common Class A And B [Member] Class A and Class B ordinary shares Revenues [Abstract] Revenues: Revenue from Contract with Customer, Excluding Assessed Tax Revenues Revenues Revenues Total revenues Cost of delivery services income and other revenues Cost of revenues: Cost of Goods and Services Sold Cost of goods sold Other Cost of Operating Revenue Cost of delivery services income and other revenues Total Cost of Revenue Total cost of revenues Operating Expenses [Abstract] Operating expenses: Selling and Marketing Expense Sales and marketing General and Administrative Expense General and administrative General and administrative Research and Development Expense Research and development Amount of expense (reversal of expense) for expected credit loss on receivables and other assets. Receivables and Other Assets, Credit Loss Expense (Reversal) (Provision for)/Reversal of expected credit losses on receivables and other assets Provision for/ (Reversal of) expected credit loss for receivables and other assets Total Asset Impairment Charges Impairment loss from other assets Impairment loss from other assets Operating Expenses Total operating expenses Other Operating Income Other operating income Operating Income (Loss) Loss from operations Investment Income, Net Interest and investment income, net Interest and investment income, net Income (Loss) from Equity Method Investments Losses/(Income) from equity method investments Share of loss in subsidiaries, VIEs and VIEs' subsidiaries Gain/(loss) from equity method investments Share of loss/(profit) in subsidiaries, VIEs and VIEs' subsidiaries Derivative, Gain (Loss) on Derivative, Net Gain on derivative instruments Total Foreign Currency Transaction Gain (Loss), before Tax Foreign exchange loss/(gain), net Foreign exchange gain/(loss), net Foreign exchange (loss)/gain, net Other Nonoperating Income Other income Other Nonoperating Expense Other expenses Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income tax Net income before income taxes Net income before income taxes Income Tax Expense (Benefit) Income tax expenses Income tax expense Total income tax expense/(benefit) Net income Net income/(loss) No definition available. Earnings Per American Depositary Shares [Abstract] Earnings per share for Class A and Class B ordinary shares: Earnings Per Share, Basic Basic (in dollars per share) Earnings per share - basic Earnings Per Share, Diluted Diluted (in dollars per share) Earnings per share - diluted Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of Class A and Class B ordinary shares outstanding: Weighted average number of ordinary share outstanding- basic Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted average number of ordinary share outstanding- basic Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Denominator used for diluted earnings per share Weighted average number of ordinary share outstanding- diluted Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive income Entity Listing, Depository Receipt Ratio Number of underlying shares represented by one ADS CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Represents information related to ordinary shares of class A and class B. Class A And B Ordinary Shares [Member] Class A and B Ordinary shares Treasury Stock [Member] Treasury shares Additional Paid-in Capital [Member] Additional paid-in capital Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated other comprehensive loss/foreign currency translation adjustment Retained Earnings [Member] Retained earnings Member Units [Member] Total HTT shareholders' equity Treasury Stock, Value, Acquired, Cost Method Repurchase of ordinary shares Treasury stock amount Amount of shares repurchased Treasury Stock, Shares, Acquired Repurchase of ordinary shares (in shares) Number of shares repurchased Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Exercise of share options Number of shares adjustments to additional paid in capital, share-based compensation and exercise of stock options. Adjustments To Additional Paid In Capital Share Based Compensation And Exercise Of Stock Options Shares Exercise of share options (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation (Note 19) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Amount of increase (decrease) to additional paid in capital (APIC) resulting from addition of new funds into the company. Adjustments to Additional Paid in Capital, Capital Injection Capital injection CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash used in operating activities: Adjustments to reconcile net income to net cash provided by/ (used in) operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Finance Lease, Right-of-Use Asset, Amortization Amortization of right-of-use assets Gain (Loss) on Disposition of Property Plant Equipment Loss on disposal of property and equipment Share-based Compensation. Share-based compensation expense Share-based compensation expense Amount of income from short term investment. Income From Short Term Investments Unrealized investment income of short-term investments and structured deposits Unrealized Gain (Loss) on Investments Investment losses of long-term investments Unrealized investment loss/(income) of short-term Investments Unrealized Gain (Loss) on Derivatives Investment income of derivative instruments Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Finance Receivables Accounts receivables Increase (Decrease) in Deferred Income Taxes Deferred tax assets and liabilities Increase (Decrease) in Other Operating Assets Other current and non-current assets The increase (decrease) during the reporting period in operating lease liabilities. Increase Decrease In Operating Lease Liabilities Operating lease liabilities Increase (Decrease) in Other Operating Liabilities Other current and non-current liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by/(used in) operating activities Net cash provided by/ (used in) operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: The cash inflow from redemption of short-term investments and time and structured deposits. Proceeds from Redemption of Short-term Investments and Time and Structured Deposits Proceeds from redemption of short-term investments and time and structured deposits Proceeds from Maturities, Prepayments and Calls of Long-term Investments Proceeds from redemption of long-term investments The cash inflow associated with the collection of principal amount of the issued secured Proceeds From Collection Of Secured Lending Principal collection of secured lending Proceeds from Collection of Finance Receivables Principal collection of finance lease receivables The cash outflow for the origination of secured lending. Payments to Originate Secured Lending Payments to originate secured lending Proceeds from Sale of Property, Plant, and Equipment Proceeds from disposal of long-term assets The cash outflow for purchases of short-term investments and time and structured deposits. Payments to Acquire Short-Term Investments and Time and Structured Deposits Purchases of short-term investments and time and structured deposits Payments to Acquire Productive Assets Purchases of property and equipment, intangible assets and land use right Payments to Acquire Long-term Investments Purchase of long-term investment Payments to Acquire Equity Method Investments Purchase of equity method investment The net cash inflow or outflow of deposits pledged as collateral for derivative instruments. Proceeds From (Payments Of) Deposits Pledged As Collateral For Derivative Instruments Collection/(Payments) of deposits related to derivative instruments Amount of cash inflow (outflow) from film investment as passive investor. Proceeds from (Payments for) Film Investment as Passive Investor Film investment as passive investor Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Net cash provided by/ (used in) investing activities Net cash provided by investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Amount of cash inflow from capital injection. Proceeds From Capital Injection Proceeds from capital injection