v3.25.2
Loans Receivable - Contractual Payment Status of Loans Receivable (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Jun. 30, 2024
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process $ 5,814,539 $ 5,748,750
Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 43,411 36,885
30-59 Days    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 2,452 7,194
60-89 Days    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 8,656 3,015
90 Days and Over    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 32,303 26,676
Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 5,771,128 5,711,865
Commercial Loan    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 4,012,678 3,945,910
Commercial Loan | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 2,709,654 2,645,851
Commercial Loan | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 986,556 948,075
Commercial Loan | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 138,755 142,747
Commercial Loan | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 177,713 209,237
Commercial Loan | Past Due | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 27,488 19,888
Commercial Loan | Past Due | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 5,863 9,398
Commercial Loan | Past Due | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 1,701 714
Commercial Loan | Past Due | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | 30-59 Days | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | 30-59 Days | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 926 6,149
Commercial Loan | 30-59 Days | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 37
Commercial Loan | 30-59 Days | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | 60-89 Days | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 5,270 0
Commercial Loan | 60-89 Days | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | 60-89 Days | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 400 64
Commercial Loan | 60-89 Days | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | 90 Days and Over | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 22,218 19,888
Commercial Loan | 90 Days and Over | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 4,937 3,249
Commercial Loan | 90 Days and Over | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 1,301 613
Commercial Loan | 90 Days and Over | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Commercial Loan | Current | Multi-family mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 2,682,166 2,625,963
Commercial Loan | Current | Nonresidential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 980,693 938,677
Commercial Loan | Current | Commercial business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 137,054 142,033
Commercial Loan | Current | Construction    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 177,713 209,237
One- to four-family residential mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 1,748,591 1,756,051
One- to four-family residential mortgage | Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 7,883 6,628
One- to four-family residential mortgage | 30-59 Days    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 1,350 800
One- to four-family residential mortgage | 60-89 Days    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 2,890 2,951
One- to four-family residential mortgage | 90 Days and Over    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 3,643 2,877
One- to four-family residential mortgage | Current    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 1,740,708 1,749,423
Consumer Loan    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 53,270 46,789
Consumer Loan | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 50,737 44,104
Consumer Loan | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 2,533 2,685
Consumer Loan | Past Due | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 476 252
Consumer Loan | Past Due | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 5
Consumer Loan | 30-59 Days | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 176 208
Consumer Loan | 30-59 Days | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Consumer Loan | 60-89 Days | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 96 0
Consumer Loan | 60-89 Days | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 0
Consumer Loan | 90 Days and Over | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 204 44
Consumer Loan | 90 Days and Over | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 0 5
Consumer Loan | Current | Home equity loans    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process 50,261 43,852
Consumer Loan | Current | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing receivable, before allowance for credit loss, fee and loan in process $ 2,533 $ 2,680