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Allowance for Probable Loan Losses (By Loan Class) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | $ 62,033 | $ 60,538 | $ 66,988 | $ 64,828
Losses charged to allowance | (4,188) | (5,167) | (31,298) | (22,196)
Recoveries credited to allowance | 7,472 | 1,057 | 13,396 | 3,652
Net (losses) recoveries charged to allowance | 3,284 | (4,110) | (17,902) | (18,544)
Provision charged to operations | (1,347) | 8,832 | 14,884 | 18,976
Balance at the end of the period | 63,970 | 65,260 | 63,970 | 65,260
Watch - List Impaired |  |  |  |
Allowance for probable loan losses |  |  |  |
Losses charged to allowance |  |  | (16,800) |
Commercial |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 25,982 | 18,902 | 21,431 | 22,352
Losses charged to allowance | (3,485) | (4,921) | (27,952) | (20,303)
Recoveries credited to allowance | 791 | 770 | 6,447 | 2,100
Net (losses) recoveries charged to allowance | (2,694) | (4,151) | (21,505) | (18,203)
Provision charged to operations | 2,602 | 5,774 | 25,964 | 16,376
Balance at the end of the period | 25,890 | 20,525 | 25,890 | 20,525
Commercial Real Estate: Other Construction and Land Development |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 11,109 | 13,524 | 13,920 | 12,955
Losses charged to allowance | (14) | (10) | (16) | (695)
Recoveries credited to allowance | 6,073 | 98 | 6,080 | 137
Net (losses) recoveries charged to allowance | 6,059 | 88 | 6,064 | (558)
Provision charged to operations | (4,659) | 654 | (7,475) | 1,869
Balance at the end of the period | 12,509 | 14,266 | 12,509 | 14,266
Commercial Real Estate: Farmland & Commercial |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 16,942 | 17,885 | 19,769 | 18,683
Losses charged to allowance | (497) |  | (2,387) | (356)
Recoveries credited to allowance | 512 | 7 | 598 | 820
Net (losses) recoveries charged to allowance | 15 | 7 | (1,789) | 464
Provision charged to operations | 291 | 1,733 | (732) | 478
Balance at the end of the period | 17,248 | 19,625 | 17,248 | 19,625
Commercial Real Estate: Multifamily |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 855 | 685 | 1,248 | 846
Losses charged to allowance |  |  | (180) |
Net (losses) recoveries charged to allowance |  |  | (180) |
Provision charged to operations | (65) | 120 | (278) | (41)
Balance at the end of the period | 790 | 805 | 790 | 805
Residential First Lien |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 2,277 | 3,434 | 3,509 | 3,589
Losses charged to allowance | (27) | (45) | (57) | (136)
Recoveries credited to allowance | 11 | 4 | 18 | 28
Net (losses) recoveries charged to allowance | (16) | (41) | (39) | (108)
Provision charged to operations | 126 | 287 | (1,083) | 199
Balance at the end of the period | 2,387 | 3,680 | 2,387 | 3,680
Residential Junior Lien |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 3,400 | 4,308 | 5,321 | 4,683
Losses charged to allowance |  | (60) | (324) | (162)
Recoveries credited to allowance | 74 | 155 | 188 | 406
Net (losses) recoveries charged to allowance | 74 | 95 | (136) | 244
Provision charged to operations | 221 | 130 | (1,490) | (394)
Balance at the end of the period | 3,695 | 4,533 | 3,695 | 4,533
Consumer |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 532 | 625 | 638 | 660
Losses charged to allowance | (124) | (131) | (341) | (544)
Recoveries credited to allowance | 11 | 21 | 53 | 151
Net (losses) recoveries charged to allowance | (113) | (110) | (288) | (393)
Provision charged to operations | 98 | 127 | 167 | 375
Balance at the end of the period | 517 | 642 | 517 | 642
Foreign |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 936 | 1,175 | 1,152 | 1,060
Losses charged to allowance | (41) |  | (41) |
Recoveries credited to allowance |  | 2 | 12 | 10
Net (losses) recoveries charged to allowance | (41) | 2 | (29) | 10
Provision charged to operations | 39 | 7 | (189) | 114
Balance at the end of the period | $ 934 | $ 1,184 | $ 934 | $ 1,184

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + 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 (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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 (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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