The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

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The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Borrowings - Long-term bank borrowings (Details) ¥ in Thousands, SFr in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2023 CNY (¥)	Nov. 30, 2022 CNY (¥)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2023 CHF (SFr)
Debt Instrument [Line Items]
Long-term bank borrowings, current portion			¥ 1,782
Swiss Company
Debt Instrument [Line Items]
long-term borrowings			2,516		SFr 299
Long-Term Debt
Debt Instrument [Line Items]
Unused bank facility			524,836
Shanghai Hesai Long Term Facility
Debt Instrument [Line Items]
Term of borrowings (in years)		2 years
Line of credit facility, maximum borrowing capacity		¥ 700,000
Credit facility agreement			561,201
Interest rate				2.45%
Amount drew drawn			¥ 261,345	¥ 18,472
Shanghai Hesai Long Term Facility \| Minimum
Debt Instrument [Line Items]
Interest rate			2.45%
Shanghai Hesai Long Term Facility \| Maximum
Debt Instrument [Line Items]
Interest rate			2.65%
Shanghai Hesai Long Term Facility \| Prime Rate
Debt Instrument [Line Items]
Annual interest rate		100.00%
Zhejiang Hertz Long Term Facility
Debt Instrument [Line Items]
Term of borrowings (in years)	1 year
Line of credit facility, maximum borrowing capacity	¥ 110,000
Interest rate			2.85%
Amount drew drawn			¥ 5,347
Long-term bank borrowings, current portion			¥ 1,782
Zhejiang Hertz Long Term Facility \| Prime Rate
Debt Instrument [Line Items]
Annual interest rate	0.60%