Business Combination - Schedule of Shares of Common Stock Issued Immediately Following Business Combination (Details) - shares	Dec. 31, 2024	Dec. 31, 2023	Aug. 22, 2023
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)	15,168,795	15,035,467
Sponsor locked-up shares
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			13,888
Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)	9,193,901	7,187,207	1,812,127
Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)	4,537,349	6,410,714	11,488,148
Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)	1,437,545	1,437,546	1,437,546
Pre-Business Combination Better Stockholders | Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			812,037
Pre-Business Combination Better Stockholders | Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			11,488,148
Pre-Business Combination Better Stockholders | Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			137,546
Legacy Aurora Public Shareholders | Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			4,252
Legacy Aurora Public Shareholders | Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Legacy Aurora Public Shareholders | Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Legacy Aurora Non-public Shareholders (Sponsor and affiliates of Aurora) | Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			161,838
Legacy Aurora Non-public Shareholders (Sponsor and affiliates of Aurora) | Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Legacy Aurora Non-public Shareholders (Sponsor and affiliates of Aurora) | Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Pre-Closing Bridge Note Investors | Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			800,000
Pre-Closing Bridge Note Investors | Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Pre-Closing Bridge Note Investors | Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			1,300,000
Sponsor Share Purchase Investors | Class A
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			34,000
Sponsor Share Purchase Investors | Class B
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0
Sponsor Share Purchase Investors | Class C
Reverse Recapitalization [Line Items]
Common stock, issued (in shares)			0