Annual report [Section 13 and 15(d), not S-K Item 405]

BUSINESS, BASIS OF PRESENTATION, AND ACCOUNTING POLICIES - Additional Information (Details)

v3.25.0.1
BUSINESS, BASIS OF PRESENTATION, AND ACCOUNTING POLICIES - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
class
segment
property
Dec. 31, 2023
USD ($)
Property Plant and Equipment [Line Items]    
Number of class of MSR asset | class 1  
Estimated useful lives 3 years  
Number of types of real estate owned properties | property 2  
Real estate owned $ 9.9 $ 2.0
Aggregate cash surrender value 28.7 41.8
Advertising expense $ 12.2 10.6
Number of reportable segments | segment 2  
Total account balance for trust for investors and escrow balances for mortgagors $ 788.6 646.5
GMC | Consolidation, Eliminations    
Property Plant and Equipment [Line Items]    
Payments of Distributions to Affiliates $ 35.7 $ 30.5
Software    
Property Plant and Equipment [Line Items]    
Estimated useful lives 3 years