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Loans - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade and Sub Class (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Allowance for loan losses | $ 537,881 | $ 444,490 | $ 200,307 | $ 192,749 | $ 184,911 | $ 180,424
Collectively evaluated for impairment | 32,419,020 |  |  | 29,343,285 |  |
Allowance - collectively evaluated for impairment | 507,677 |  |  | 159,579 |  |
Individually evaluated for impairment | 289,917 |  |  | 300,726 |  |
Allowance - individually evaluated for impairment | 30,204 |  |  | 31,181 |  |
Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 24,388,108 |  |  |
Loan balances percentage of total |  |  | 100.00% |  |  |
Allowance for loan losses |  |  | $ 158,598 |  |  |
Collectively evaluated for impairment |  |  | $ 24,273,207 |  |  |
Percent loan collectively evaluated for impairment |  |  | 100.00% |  |  |
Allowance - collectively evaluated for impairment |  |  | $ 151,554 |  |  |
Individually evaluated for impairment |  |  | $ 84,001 |  |  |
Percent loan individually evaluated for impairment |  |  | 0.00% |  |  |
Allowance - individually evaluated for impairment |  |  | $ 6,196 |  |  |
Purchased credit-impaired loans |  |  | $ 30,900 |  |  |
Percent loan purchased credit impaired |  |  | 0.00% |  |  |
Allowance - purchased credit-impaired loans |  |  | $ 848 |  |  |
Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Allowance for loan losses | 318,722 | 254,516 | 122,486 | 116,096 | 103,713 | 98,947
Collectively evaluated for impairment | 21,253,367 |  |  | 18,904,621 |  |
Allowance - collectively evaluated for impairment | 302,145 |  |  | 106,758 |  |
Individually evaluated for impairment | 140,526 |  |  | 115,808 |  |
Allowance - individually evaluated for impairment | 16,577 |  |  | 8,484 |  |
Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Allowance for loan losses | 57,285 | $ 47,625 | 36,112 | 32,953 | $ 34,382 | $ 31,311
Collectively evaluated for impairment | 4,813,181 |  |  | 3,852,027 |  |
Allowance - collectively evaluated for impairment | 57,285 |  |  | 32,953 |  |
Individually evaluated for impairment | 160 |  |  | 1,777 |  |
Allowance - individually evaluated for impairment | 0 |  |  | $ 0 |  |
C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 15,421,921 |  |  |
Collectively evaluated for impairment |  |  | 15,313,558 |  |  |
Individually evaluated for impairment |  |  | 82,438 |  |  |
Purchased credit-impaired loans |  |  | 25,925 |  |  |
Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 4,410,883 |  |  |
Collectively evaluated for impairment |  |  | 4,410,883 |  |  |
Individually evaluated for impairment |  |  | 0 |  |  |
Purchased credit-impaired loans |  |  | 0 |  |  |
TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 218,287 |  |  |
Allowance for loan losses | 18,400 |  | 19,100 |  |  |
Collectively evaluated for impairment |  |  | 218,287 |  |  |
Individually evaluated for impairment |  |  | 0 |  |  |
Purchased credit-impaired loans |  |  | 0 |  |  |
Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 4,248,237 |  |  |
Collectively evaluated for impairment | 4,768,563 |  | 4,242,519 |  |  |
Individually evaluated for impairment | 160 |  | 1,563 |  |  |
Purchased credit-impaired loans |  |  | 4,155 |  |  |
Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 88,780 |  |  |
Collectively evaluated for impairment | 44,618 |  | 87,960 |  |  |
Individually evaluated for impairment | $ 0 |  | 0 |  |  |
Purchased credit-impaired loans |  |  | 820 |  |  |
PD Grade 1 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 697,888 |  |  |
Loan balances percentage of total |  |  | 3.00% |  |  |
Allowance for loan losses |  |  | $ 69 |  |  |
PD Grade 1 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 696,040 |  |  |
PD Grade 1 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 1 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 1 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,848 |  |  |
PD Grade 1 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 2 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 815,992 |  |  |
Loan balances percentage of total |  |  | 4.00% |  |  |
Allowance for loan losses |  |  | $ 165 |  |  |
PD Grade 2 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 767,048 |  |  |
PD Grade 2 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 2 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 2 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 48,906 |  |  |
PD Grade 2 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 38 |  |  |
PD Grade 3 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 2,098,520 |  |  |
Loan balances percentage of total |  |  | 9.00% |  |  |
Allowance for loan losses |  |  | $ 274 |  |  |
PD Grade 3 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 743,123 |  |  |
PD Grade 3 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 877,210 |  |  |
PD Grade 3 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 3,314 |  |  |
PD Grade 3 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 474,067 |  |  |
PD Grade 3 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 806 |  |  |
PD Grade 4 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 2,657,818 |  |  |
Loan balances percentage of total |  |  | 11.00% |  |  |
Allowance for loan losses |  |  | $ 738 |  |  |
PD Grade 4 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,237,772 |  |  |
PD Grade 4 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 692,971 |  |  |
PD Grade 4 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 46,375 |  |  |
PD Grade 4 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 680,223 |  |  |
PD Grade 4 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 477 |  |  |
PD Grade 5 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 3,725,003 |  |  |
Loan balances percentage of total |  |  | 15.00% |  |  |
Allowance for loan losses |  |  | $ 8,265 |  |  |
PD Grade 5 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,986,761 |  |  |
PD Grade 5 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 670,402 |  |  |
PD Grade 5 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 72,512 |  |  |
PD Grade 5 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 993,628 |  |  |
PD Grade 5 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,700 |  |  |
PD Grade 6 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 4,683,029 |  |  |
Loan balances percentage of total |  |  | 19.00% |  |  |
Allowance for loan losses |  |  | $ 12,054 |  |  |
PD Grade 6 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 2,511,290 |  |  |
PD Grade 6 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,410,387 |  |  |
PD Grade 6 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 27,263 |  |  |
PD Grade 6 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 717,062 |  |  |
PD Grade 6 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 17,027 |  |  |
PD Grade 7 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 3,908,971 |  |  |
Loan balances percentage of total |  |  | 16.00% |  |  |
Allowance for loan losses |  |  | $ 20,409 |  |  |
PD Grade 7 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 2,708,707 |  |  |
PD Grade 7 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 509,616 |  |  |
PD Grade 7 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 18,378 |  |  |
PD Grade 7 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 641,345 |  |  |
PD Grade 7 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 30,925 |  |  |
PD Grade 8 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 2,166,241 |  |  |
Loan balances percentage of total |  |  | 9.00% |  |  |
Allowance for loan losses |  |  | $ 22,514 |  |  |
PD Grade 8 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,743,364 |  |  |
PD Grade 8 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 136,771 |  |  |
PD Grade 8 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 8 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 269,407 |  |  |
PD Grade 8 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 16,699 |  |  |
PD Grade 9 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 1,393,514 |  |  |
Loan balances percentage of total |  |  | 6.00% |  |  |
Allowance for loan losses |  |  | $ 17,484 |  |  |
PD Grade 9 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,101,873 |  |  |
PD Grade 9 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 77,139 |  |  |
PD Grade 9 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 31,909 |  |  |
PD Grade 9 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 169,586 |  |  |
PD Grade 9 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 13,007 |  |  |
PD Grade 10 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 665,145 |  |  |
Loan balances percentage of total |  |  | 3.00% |  |  |
Allowance for loan losses |  |  | $ 10,197 |  |  |
PD Grade 10 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 563,635 |  |  |
PD Grade 10 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 21,229 |  |  |
PD Grade 10 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 18,536 |  |  |
PD Grade 10 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 59,592 |  |  |
PD Grade 10 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 2,153 |  |  |
PD Grade 11 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 579,124 |  |  |
Loan balances percentage of total |  |  | 2.00% |  |  |
Allowance for loan losses |  |  | $ 13,454 |  |  |
PD Grade 11 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 495,140 |  |  |
PD Grade 11 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 11 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 11 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 81,682 |  |  |
PD Grade 11 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 2,302 |  |  |
PD Grade 12 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 307,945 |  |  |
Loan balances percentage of total |  |  | 1.00% |  |  |
Allowance for loan losses |  |  | $ 8,471 |  |  |
PD Grade 12 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 262,906 |  |  |
PD Grade 12 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 15,158 |  |  |
PD Grade 12 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 12 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 28,807 |  |  |
PD Grade 12 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,074 |  |  |
PD Grade 13 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 266,915 |  |  |
Loan balances percentage of total |  |  | 1.00% |  |  |
Allowance for loan losses |  |  | $ 8,142 |  |  |
PD Grade 13 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 232,823 |  |  |
PD Grade 13 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 13 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 13 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 32,966 |  |  |
PD Grade 13 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 1,126 |  |  |
PD Grade 14 15 16 | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 307,102 |  |  |
Loan balances percentage of total |  |  | 1.00% |  |  |
Allowance for loan losses |  |  | $ 29,318 |  |  |
PD Grade 14 15 16 | C&I | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 263,076 |  |  |
PD Grade 14 15 16 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 14 15 16 | TRUPS | Commercial | Commercial, financial, and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 0 |  |  |
PD Grade 14 15 16 | Income CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | 43,400 |  |  |
PD Grade 14 15 16 | Residential CRE | Commercial | Commercial real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan balance |  |  | $ 626 |  |  |

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- Definition Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 + Details
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