Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Summary of Goodwill Allocated to Each Reporting Unit Consisted (Detail)

v3.21.2
Goodwill - Summary of Goodwill Allocated to Each Reporting Unit Consisted (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Apr. 01, 2021
Mar. 31, 2021
Dec. 31, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Goodwill [Line Items]              
Goodwill $ 1,298,324 $ 0 $ 128,750 $ 121,233 $ 121,754 $ 121,137 $ 121,137
Mortgage Originations [Member]              
Goodwill [Line Items]              
Goodwill 711,306     44,429      
Reverse Originations [Member]              
Goodwill [Line Items]              
Goodwill 404,441            
Commercial Originations [Member]              
Goodwill [Line Items]              
Goodwill 75,350     43,113      
Lender Services [Member]              
Goodwill [Line Items]              
Goodwill 100,128     25,247      
Portfolio Management              
Goodwill [Line Items]              
Goodwill $ 7,099     $ 8,444