Principal Accounting Policies - Employee Social Security and Welfare Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Principal Accounting Policies
Employee social security and welfare benefits expenses	$ 23,915	$ 23,630	$ 27,296

Employee social security and welfare benefits included as expenses.

No definition available.

Name:	tuya_EmployeeSocialSecurityAndWelfareBenefitsExpenses
Namespace Prefix:	tuya_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration