Equity Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Jul. 31, 2021	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Class A \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		11,205,100
Number of shares available for grant (in shares)		6,554,422
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value for units vested during period		$ 0.7	$ 3.4	$ 13.1
Restricted Stock Units (RSUs) And Performance Shares \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contingent right, number of common shares received per award unit		1
RSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value for units vested during period		$ 3.4	$ 7.1	$ 3.5
Weighted average grant date fair value (in dollars per share)		$ 8.36	$ 15.75	$ 8.62
RSU Awards \| Share-Based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		33.00%
RSU Awards \| Share-Based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		33.00%
RSU Awards \| Share-Based Payment Arrangement, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		33.00%
RSU Awards \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		1 year
PSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value for units vested during period		$ 0.8	$ 3.3	$ 0.0
Weighted average grant date fair value (in dollars per share)		$ 7.94	$ 15.83	$ 9.47
Minimum \| Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum \| RSU Awards \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Minimum \| PSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		0.00%
Maximum \| Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Maximum \| RSU Awards \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years
Maximum \| PSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		200.00%

Arhaus, Inc. 10-K