XML 95 R68.htm IDEA: XBRL DOCUMENT v3.23.1
Significant accounting policies - Disclosure of detailed information about estimated useful life or depreciation rate (Details)
 12 Months Ended
Dec. 31, 2022
Leasehold improvements [Member]  
Significant Accounting Policies [Line Items]  
Useful life of property, plant and equipment Lease term
Furniture and office equipment [Member]  
Significant Accounting Policies [Line Items]  
Useful life of property, plant and equipment 3-5 years
Right-of-use assets [Member]  
Significant Accounting Policies [Line Items]  
Useful life of property, plant and equipment Shorter of useful life and lease term