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Allowance for Probable Loan Losses (Impairment By Loan Class) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | $ 48,405 | $ 60,448
Loans Individually Evaluated for Impairment, Allowance | 961 | 2,206
Loans Collectively Evaluated for Impairment, Recorded Investment | 5,916,283 | 5,890,466
Loans Collectively Evaluated for Impairment, Allowance | 63,700 | 64,782
Commercial |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 22,412 | 30,946
Loans Individually Evaluated for Impairment, Allowance |  | 1,704
Loans Collectively Evaluated for Impairment, Recorded Investment | 887,255 | 935,905
Loans Collectively Evaluated for Impairment, Allowance | 25,649 | 19,727
Commercial Real Estate: Other Construction and Land Development |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 4,776 | 6,221
Loans Individually Evaluated for Impairment, Allowance | 371 | 100
Loans Collectively Evaluated for Impairment, Recorded Investment | 1,712,099 | 1,643,606
Loans Collectively Evaluated for Impairment, Allowance | 13,518 | 13,820
Commercial Real Estate: Farmland & Commercial |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 10,810 | 13,806
Loans Individually Evaluated for Impairment, Allowance | 546 | 202
Loans Collectively Evaluated for Impairment, Recorded Investment | 1,932,260 | 1,981,643
Loans Collectively Evaluated for Impairment, Allowance | 16,185 | 19,567
Commercial Real Estate: Multifamily |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 552 | 777
Loans Individually Evaluated for Impairment, Allowance |  | 200
Loans Collectively Evaluated for Impairment, Recorded Investment | 139,914 | 138,671
Loans Collectively Evaluated for Impairment, Allowance | 806 | 1,048
Residential First Lien |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 6,836 | 5,699
Loans Individually Evaluated for Impairment, Allowance | 44 |
Loans Collectively Evaluated for Impairment, Recorded Investment | 415,068 | 404,545
Loans Collectively Evaluated for Impairment, Allowance | 2,411 | 3,509
Residential Junior Lien |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 978 | 950
Loans Collectively Evaluated for Impairment, Recorded Investment | 609,340 | 551,388
Loans Collectively Evaluated for Impairment, Allowance | 3,716 | 5,321
Consumer |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 1,295 | 1,297
Loans Collectively Evaluated for Impairment, Recorded Investment | 53,873 | 56,447
Loans Collectively Evaluated for Impairment, Allowance | 531 | 638
Foreign |  |
Loan loss allowances, impaired financing receivable, evaluated individually or collectively |  |
Loans Individually Evaluated for Impairment, Recorded Investment | 746 | 752
Loans Collectively Evaluated for Impairment, Recorded Investment | 166,474 | 178,261
Loans Collectively Evaluated for Impairment, Allowance | $ 884 | $ 1,152

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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