v3.26.1
Loans and Allowance for Credit Losses (Schedule of Credit Exposure for Loans Based on Original LTV and FICO Score) (Details) - 1-4 single family residential - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year $ 84,437 $ 248,591
Originated, fiscal year before current fiscal year 250,567 199,367
Originated, two years before current fiscal year 150,942 233,556
Originated, three years before current fiscal year 182,596 928,477
Originated, four years before current Fiscal year 885,779 2,567,024
Originated, more than five years before current fiscal year 4,253,591 1,914,944
Total 5,807,912 6,091,959
760 or greater    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 61,546 178,910
Originated, fiscal year before current fiscal year 179,436 145,699
Originated, two years before current fiscal year 113,448 167,837
Originated, three years before current fiscal year 127,363 671,820
Originated, four years before current Fiscal year 629,300 2,058,226
Originated, more than five years before current fiscal year 3,276,812 1,395,521
Total 4,387,905 4,618,013
720 - 759    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 22,582 54,894
Originated, fiscal year before current fiscal year 45,963 35,812
Originated, two years before current fiscal year 24,268 37,624
Originated, three years before current fiscal year 28,407 144,931
Originated, four years before current Fiscal year 138,053 324,779
Originated, more than five years before current fiscal year 571,905 287,334
Total 831,178 885,374
719 or less or not available    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 309 14,787
Originated, fiscal year before current fiscal year 25,168 17,856
Originated, two years before current fiscal year 13,226 28,095
Originated, three years before current fiscal year 26,826 111,726
Originated, four years before current Fiscal year 118,426 184,019
Originated, more than five years before current fiscal year 404,874 232,089
Total 588,829 588,572
Less than 61%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 14,878 42,822
Originated, fiscal year before current fiscal year 43,032 25,252
Originated, two years before current fiscal year 17,757 41,263
Originated, three years before current fiscal year 29,340 213,007
Originated, four years before current Fiscal year 204,534 1,035,507
Originated, more than five years before current fiscal year 1,595,531 652,497
Total 1,905,072 2,010,348
61% - 70%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 27,546 43,662
Originated, fiscal year before current fiscal year 43,190 24,753
Originated, two years before current fiscal year 19,480 28,681
Originated, three years before current fiscal year 19,484 241,588
Originated, four years before current Fiscal year 228,047 715,135
Originated, more than five years before current fiscal year 1,110,409 454,229
Total 1,448,156 1,508,048
71% - 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 25,842 102,327
Originated, fiscal year before current fiscal year 99,598 116,351
Originated, two years before current fiscal year 85,947 133,730
Originated, three years before current fiscal year 107,234 470,437
Originated, four years before current Fiscal year 449,839 785,474
Originated, more than five years before current fiscal year 1,488,249 775,835
Total 2,256,709 2,384,154
More than 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 16,171 59,780
Originated, fiscal year before current fiscal year 64,747 33,011
Originated, two years before current fiscal year 27,758 29,882
Originated, three years before current fiscal year 26,538 3,445
Originated, four years before current Fiscal year 3,359 30,908
Originated, more than five years before current fiscal year 59,402 32,383
Total 197,975 189,409
Current    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 83,278 245,592
Originated, fiscal year before current fiscal year 250,408 197,279
Originated, two years before current fiscal year 148,186 232,600
Originated, three years before current fiscal year 175,667 920,112
Originated, four years before current Fiscal year 879,036 2,543,128
Originated, more than five years before current fiscal year 4,205,607 1,883,061
Total 5,742,182 6,021,772
30 - 59 Days Past Due    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 1,159 2,445
Originated, fiscal year before current fiscal year 0 72
Originated, two years before current fiscal year 1,157 884
Originated, three years before current fiscal year 4,524 7,390
Originated, four years before current Fiscal year 2,441 17,045
Originated, more than five years before current fiscal year 30,630 20,263
Total 39,911 48,099
60 - 89 Days Past Due    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 0 395
Originated, fiscal year before current fiscal year 0 0
Originated, two years before current fiscal year 0 0
Originated, three years before current fiscal year 1,301 0
Originated, four years before current Fiscal year 3,046 1,471
Originated, more than five years before current fiscal year 2,842 2,602
Total 7,189 4,468
90 Days or More Past Due    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated current fiscal year 0 159
Originated, fiscal year before current fiscal year 159 2,016
Originated, two years before current fiscal year 1,599 72
Originated, three years before current fiscal year 1,104 975
Originated, four years before current Fiscal year 1,256 5,380
Originated, more than five years before current fiscal year 14,512 9,018
Total $ 18,630 $ 17,620