Subsequent Events - Share options (Details) - shares	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Number of share options granted		1,947,402
Subsequent Event \| Stock options
Subsequent Event [Line Items]
Number of share options granted	1,632,922

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration