v3.25.1
Loans Receivable and Allowance for Credit Losses (Summary of Loans Receivable by Credit Quality Risk Rating Indicator- Current Year) (Detail) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 $ 545,036 $ 1,815,804
2024 1,659,366 2,530,609
2023 2,563,603 3,858,999
2022 3,814,202 2,390,393
2021 2,317,415 1,979,397
Prior to 2021 6,265,886 4,380,357
Revolving Loans 1,537,173 1,610,946
Revolving loans to term loans 98,275 101,065
Total gross loans 18,800,956 18,667,570
Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 3,163 10,894
2024 7,992 16,924
2023 31,198 87,250
2022 119,845 57,656
2021 116,049 68,367
Prior to 2021 267,027 195,629
Revolving Loans 49,968 57,953
Revolving loans to term loans 6,475 6,507
Total gross loans 601,717 501,180
Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 179 963
2024 2,851 9,409
2023 14,056 13,581
2022 39,355 14,931
2021 68,372 24,186
Prior to 2021 119,612 115,866
Revolving Loans 21,052 25,216
Revolving loans to term loans 3,531 4,761
Total gross loans 269,008 208,913
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 2,984 9,931
2024 5,141 7,515
2023 17,142 73,669
2022 80,490 42,725
2021 47,677 44,181
Prior to 2021 147,415 79,763
Revolving Loans 28,916 32,737
Revolving loans to term loans 2,944 1,746
Total gross loans 332,709 292,267
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 541,873 1,804,910
2024 1,651,374 2,513,685
2023 2,532,405 3,771,749
2022 3,694,357 2,332,737
2021 2,201,366 1,911,030
Prior to 2021 5,998,859 4,184,728
Revolving Loans 1,487,205 1,552,993
Revolving loans to term loans 91,800 94,558
Total gross loans 18,199,239 18,166,390
Commercial    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 205,510 421,297
2024 349,529 909,374
2023 922,247 1,645,013
2022 1,625,492 1,006,785
2021 1,005,140 919,915
Prior to 2021 3,046,232 2,184,041
Revolving Loans 130,787 130,758
Revolving loans to term loans 10,714 10,895
Total gross loans 7,295,651 7,228,078
Commercial | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 2,984 3,306
2024 0 4,450
2023 3,252 21,102
2022 28,542 9,127
2021 56,745 35,620
Prior to 2021 140,932 120,395
Revolving Loans 4,436 4,461
Revolving loans to term loans 0 0
Total gross loans 236,891 198,461
Commercial | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 262
2024 0 4,377
2023 3,185 10,150
2022 20,698 9,127
2021 48,125 14,569
Prior to 2021 56,524 69,525
Revolving Loans 4,436 4,461
Revolving loans to term loans 0 0
Total gross loans 132,968 112,471
Commercial | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 2,984 3,044
2024 0 73
2023 67 10,952
2022 7,844 0
2021 8,620 21,051
Prior to 2021 84,408 50,870
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 103,923 85,990
Commercial | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Commercial | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Commercial | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 202,526 417,991
2024 349,529 904,924
2023 918,995 1,623,911
2022 1,596,950 997,658
2021 948,395 884,295
Prior to 2021 2,905,300 2,063,646
Revolving Loans 126,351 126,297
Revolving loans to term loans 10,714 10,895
Total gross loans 7,058,760 7,029,617
Multi-family    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 78,299 363,254
2024 329,224 479,744
2023 492,325 701,811
2022 752,254 462,022
2021 416,520 460,161
Prior to 2021 1,377,242 904,202
Revolving Loans 10,778 10,181
Revolving loans to term loans 1,548 1,558
Total gross loans 3,458,190 3,382,933
Multi-family | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 1,560
2023 2,945 0
2022 0 1,043
2021 1,043 0
Prior to 2021 22,653 21,911
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 26,641 24,514
Multi-family | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 1,425 0
2022 0 0
2021 0 0
Prior to 2021 16,022 16,472
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 17,447 16,472
Multi-family | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 1,560
2023 1,520 0
2022 0 1,043
2021 1,043 0
Prior to 2021 6,631 5,439
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 9,194 8,042
Multi-family | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Multi-family | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Multi-family | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 78,299 363,254
2024 329,224 478,184
2023 489,380 701,811
2022 752,254 460,979
2021 415,477 460,161
Prior to 2021 1,354,589 882,291
Revolving Loans 10,778 10,181
Revolving loans to term loans 1,548 1,558
Total gross loans 3,431,549 3,358,419
Construction    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 10,446 104,009
2024 136,029 310,098
2023 309,820 260,190
2022 200,026 122,446
2021 98,333 24,017
Prior to 2021 1,702 2,743
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 756,356 823,503
Construction | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 1,064
2023 13,312 0
2022 6,639 12,346
2021 6,772 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 26,723 13,410
Construction | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 1,064
2023 1,154 0
2022 6,639 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 7,793 1,064
Construction | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 12,158 0
2022 0 12,346
2021 6,772 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 18,930 12,346
Construction | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Construction | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Construction | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 10,446 104,009
2024 136,029 309,034
2023 296,508 260,190
2022 193,387 110,100
2021 91,561 24,017
Prior to 2021 1,702 2,743
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 729,633 810,093
Residential    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 23,199 140,785
2024 132,733 350,613
2023 345,102 429,302
2022 422,590 334,269
2021 329,853 276,703
Prior to 2021 740,927 478,965
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 1,994,404 2,010,637
Residential | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 403
2024 553 2,120
2023 2,430 1,033
2022 1,408 1,119
2021 1,115 0
Prior to 2021 4,749 4,799
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 10,255 9,474
Residential | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 403
2024 553 1,356
2023 1,196 344
2022 722 0
2021 0 0
Prior to 2021 2,690 2,836
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 5,161 4,939
Residential | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 764
2023 1,234 689
2022 686 1,119
2021 1,115 0
Prior to 2021 2,059 1,963
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 5,094 4,535
Residential | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Residential | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Residential | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 23,199 140,382
2024 132,180 348,493
2023 342,672 428,269
2022 421,182 333,150
2021 328,738 276,703
Prior to 2021 736,178 474,166
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 1,984,149 2,001,163
Commercial loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 216,411 754,484
2024 676,383 435,080
2023 451,454 763,011
2022 757,328 424,782
2021 428,428 289,044
Prior to 2021 1,014,374 726,248
Revolving Loans 1,067,200 1,141,225
Revolving loans to term loans 71,324 74,726
Total gross loans 4,682,902 4,608,600
Commercial loans | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 179 7,185
2024 7,439 7,635
2023 9,259 65,112
2022 83,256 34,012
2021 50,365 32,623
Prior to 2021 98,244 48,094
Revolving Loans 44,078 51,817
Revolving loans to term loans 6,328 6,507
Total gross loans 299,148 252,985
Commercial loans | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 179 298
2024 2,298 2,612
2023 7,096 3,084
2022 11,296 5,804
2021 20,247 9,493
Prior to 2021 44,172 26,924
Revolving Loans 16,016 20,030
Revolving loans to term loans 3,385 4,761
Total gross loans 104,689 73,006
Commercial loans | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 6,887
2024 5,141 5,023
2023 2,163 62,028
2022 71,960 28,208
2021 30,118 23,130
Prior to 2021 54,072 21,170
Revolving Loans 28,062 31,787
Revolving loans to term loans 2,943 1,746
Total gross loans 194,459 179,979
Commercial loans | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Commercial loans | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Commercial loans | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 216,232 747,299
2024 668,944 427,445
2023 442,195 697,899
2022 674,072 390,770
2021 378,063 256,421
Prior to 2021 916,130 678,154
Revolving Loans 1,023,122 1,089,408
Revolving loans to term loans 64,996 68,219
Total gross loans 4,383,754 4,355,615
Consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 11,171 31,975
2024 35,468 45,700
2023 42,655 59,672
2022 56,512 40,089
2021 39,141 9,557
Prior to 2021 85,409 84,158
Revolving Loans 328,408 328,782
Revolving loans to term loans 14,689 13,886
Total gross loans 613,453 613,819
Consumer loans | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 95
2023 0 3
2022 0 9
2021 9 124
Prior to 2021 449 430
Revolving Loans 1,454 1,675
Revolving loans to term loans 147 0
Total gross loans 2,059 2,336
Consumer loans | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 3
2022 0 0
2021 0 124
Prior to 2021 204 109
Revolving Loans 600 725
Revolving loans to term loans 146 0
Total gross loans 950 961
Consumer loans | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 95
2023 0 0
2022 0 9
2021 9 0
Prior to 2021 245 321
Revolving Loans 854 950
Revolving loans to term loans 1 0
Total gross loans 1,109 1,375
Consumer loans | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Consumer loans | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Consumer loans | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 11,171 31,975
2024 35,468 45,605
2023 42,655 59,669
2022 56,512 40,080
2021 39,132 9,433
Prior to 2021 84,960 83,728
Revolving Loans 326,954 327,107
Revolving loans to term loans 14,542 13,886
Total gross loans 611,394 611,483
Mortgage loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 317,454 1,029,345
2024 947,515 2,049,829
2023 2,069,494 3,036,316
2022 3,000,362 1,925,522
2021 1,849,846 1,680,796
Prior to 2021 5,166,103 3,569,951
Revolving Loans 141,565 140,939
Revolving loans to term loans 12,262 12,453
Total gross loans 13,504,601 13,445,151
Mortgage loans | Total classified and criticized    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 2,984 3,709
2024 553 9,194
2023 21,939 22,135
2022 36,589 23,635
2021 65,675 35,620
Prior to 2021 168,334 147,105
Revolving Loans 4,436 4,461
Revolving loans to term loans 0 0
Total gross loans 300,510 245,859
Mortgage loans | Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 665
2024 553 6,797
2023 6,960 10,494
2022 28,059 9,127
2021 48,125 14,569
Prior to 2021 75,236 88,833
Revolving Loans 4,436 4,461
Revolving loans to term loans 0 0
Total gross loans 163,369 134,946
Mortgage loans | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 2,984 3,044
2024 0 2,397
2023 14,979 11,641
2022 8,530 14,508
2021 17,550 21,051
Prior to 2021 93,098 58,272
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 137,141 110,913
Mortgage loans | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Mortgage loans | Loss    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 0 0
2024 0 0
2023 0 0
2022 0 0
2021 0 0
Prior to 2021 0 0
Revolving Loans 0 0
Revolving loans to term loans 0 0
Total gross loans 0 0
Mortgage loans | Pass/Watch    
Financing Receivable, Credit Quality Indicator [Line Items]    
2025 314,470 1,025,636
2024 946,962 2,040,635
2023 2,047,555 3,014,181
2022 2,963,773 1,901,887
2021 1,784,171 1,645,176
Prior to 2021 4,997,769 3,422,846
Revolving Loans 137,129 136,478
Revolving loans to term loans 12,262 12,453
Total gross loans 13,204,091 13,199,292
Mortgage loans | Commercial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total gross loans 7,295,651 7,228,078
Mortgage loans | Multi-family    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total gross loans 3,458,190 3,382,933
Mortgage loans | Construction    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total gross loans 756,356 823,503
Mortgage loans | Residential    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total gross loans $ 1,994,404 $ 2,010,637