Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Rent Expenses Incurred To Related Party	$ 778	$ 819	$ 851
Interest expenses incurred to related party	$ 173	$ 354	$ 916

Represents the amount of rent expenses incurred to related party and included in selling, general and administrative expenses.

No definition available.

Name:	sva_RentExpensesIncurredToRelatedParty
Namespace Prefix:	sva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration