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Related Party Transactions (Details) ¥ / shares in Units, ¥ in Millions			3 Months Ended	12 Months Ended
	Mar. 01, 2022 CNY (¥)	Dec. 03, 2021 CNY (¥) ¥ / shares	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Apr. 30, 2023
Related Party Transactions [Line Items]
Transfer value (in Yuan Renminbi)		¥ 282
Shengda Group [Member]
Related Party Transactions [Line Items]
Interest rate							1.00%
Repaid debt owed \| $				$ 17,600,000	$ 17,600,000	$ 17,600,000
Payables due amount \| $			$ 12,688	$ 12,516
SunCar Online to Shanghai Feiyou [Member]
Related Party Transactions [Line Items]
Interest percentage		55.09%
SunCar Online [Member]
Related Party Transactions [Line Items]
Price per share (in Yuan Renminbi per share) \| ¥ / shares		¥ 4
Transfer value (in Yuan Renminbi)		¥ 282
Purchase agreement amount (in Yuan Renminbi)	¥ 1