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Loans and Allowance for Credit Losses - Industry Classification System (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Lessors of nonresidential buildings |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding Principal Balances | $ 3,737,224 |
Unfunded Commitments | 895,221 |
Total exposure | 4,632,445 | $ 4,578,116
Lessors of residential buildings |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding Principal Balances | 939,201 |
Unfunded Commitments | 690,788 |
Total exposure | 1,629,989 | 1,599,837
New Housing For-Sale Builders |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding Principal Balances | 534,896 |
Unfunded Commitments | 599,323 |
Total exposure | 1,134,219 | 1,090,603
Hotels (except Casino Hotels) and Motels |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Outstanding Principal Balances | 825,202 |
Unfunded Commitments | 139,190 |
Total exposure | $ 964,392 | $ 967,771

X
- Definition Represents the amount of financing receivables exposure to credit risk. + References No definition available. + Details
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X
- Definition Represents the amount of financing receivables principal balance outstanding. + References No definition available. + Details
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