v3.25.1
Loans Receivable and Allowance for Credit Losses (Schedule of Allowance for Loan Losses by Portfolio Segment) (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance at beginning of period $ 193,432 $ 107,200
Provision (benefit) charge to operations 325 200
Recoveries of loans previously charged-off 1,276 895
Loans charged-off (3,263) (1,866)
Balance at end of period 191,770 106,429
Mortgage loans    
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance at beginning of period 144,587 73,407
Provision (benefit) charge to operations (3,820) (7,580)
Recoveries of loans previously charged-off 806 63
Loans charged-off (890) 0
Balance at end of period 140,683 65,890
Commercial loans    
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance at beginning of period 43,642 31,475
Provision (benefit) charge to operations 4,175 7,924
Recoveries of loans previously charged-off 279 687
Loans charged-off (2,195) (1,794)
Balance at end of period 45,901 38,292
Consumer loans    
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance at beginning of period 5,203 2,318
Provision (benefit) charge to operations (30) (144)
Recoveries of loans previously charged-off 191 145
Loans charged-off (178) (72)
Balance at end of period $ 5,186 $ 2,247