Fair Value Measurement- Schedule of Carrying Amounts and Estimated Fair Values (Details) - Senior Notes - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Net Carrying Amount \| 2025 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net Carrying Amount	$ 0	$ 26,653
Net Carrying Amount \| 2028 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net Carrying Amount	47,703	276,807
Net Carrying Amount \| 2029 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net Carrying Amount	140,980	134,470
Net Carrying Amount \| 2031 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net Carrying Amount	183,130	0
Estimated Fair Value \| 2025 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated Fair Value	0	26,493
Estimated Fair Value \| 2028 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated Fair Value	45,152	216,291
Estimated Fair Value \| 2029 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated Fair Value	153,712	140,889
Estimated Fair Value \| 2031 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated Fair Value	$ 280,269	$ 0

TheRealReal, Inc. 10-K