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Allowance for Probable Loan Losses (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | $ 62,968 | $ 78,781 | $ 58,193 | $ 84,192
Losses charged to allowance | (3,056) | (15,669) | (6,565) | (27,753)
Recoveries credited to allowance | 797 | 1,159 | 1,662 | 2,547
Net losses charged to allowance | (2,259) | (14,510) | (4,903) | (25,206)
Provision (credit) charged to operations | 4,342 | 6,107 | 11,761 | 11,392
Balance at the end of the period | 65,051 | 70,378 | 65,051 | 70,378
Commercial |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 20,926 | 24,577 | 11,632 | 26,617
Losses charged to allowance | (2,663) | (3,064) | (5,326) | (6,488)
Recoveries credited to allowance | 557 | 758 | 1,251 | 2,002
Net losses charged to allowance | (2,106) | (2,306) | (4,075) | (4,486)
Provision (credit) charged to operations | 1,856 | 2,417 | 13,119 | 2,557
Balance at the end of the period | 20,676 | 24,688 | 20,676 | 24,688
Commercial real estate: other construction and land development |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 11,053 | 19,766 | 12,720 | 19,940
Losses charged to allowance | (120) | (7,500) | (248) | (7,571)
Recoveries credited to allowance | 13 | 207 | 26 | 212
Net losses charged to allowance | (107) | (7,293) | (222) | (7,359)
Provision (credit) charged to operations | 678 | 769 | (874) | 661
Balance at the end of the period | 11,624 | 13,242 | 11,624 | 13,242
Commercial real estate: farmland and commercial |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 20,651 | 21,810 | 21,880 | 24,227
Losses charged to allowance | (1) | (4,482) | (61) | (12,476)
Recoveries credited to allowance | 128 | 100 | 141 | 131
Net losses charged to allowance | 127 | (4,382) | 80 | (12,345)
Provision (credit) charged to operations | 1,605 | 3,123 | 423 | 8,669
Balance at the end of the period | 22,383 | 20,551 | 22,383 | 20,551
Commercial real estate: multifamily |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 609 | 849 | 694 | 1,003
Provision (credit) charged to operations | 14 | (46) | (71) | (200)
Balance at the end of the period | 623 | 803 | 623 | 803
Residential: first lien |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 3,868 | 4,379 | 4,390 | 4,562
Losses charged to allowance | (27) | (30) | (199) | (66)
Recoveries credited to allowance | 4 | 1 | 9 | 3
Net losses charged to allowance | (23) | (29) | (190) | (63)
Provision (credit) charged to operations | 10 | (363) | (345) | (512)
Balance at the end of the period | 3,855 | 3,987 | 3,855 | 3,987
Residential: junior lien |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 4,011 | 4,505 | 4,448 | 4,760
Losses charged to allowance | (140) | (399) | (395) | (711)
Recoveries credited to allowance | 30 | 61 | 124 | 106
Net losses charged to allowance | (110) | (338) | (271) | (605)
Provision (credit) charged to operations | 146 | 243 | (130) | 255
Balance at the end of the period | 4,047 | 4,410 | 4,047 | 4,410
Consumer |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 820 | 1,602 | 1,289 | 1,724
Losses charged to allowance | (105) | (189) | (316) | (436)
Recoveries credited to allowance | 60 | 32 | 106 | 93
Net losses charged to allowance | (45) | (157) | (210) | (343)
Provision (credit) charged to operations | 22 | 31 | (282) | 95
Balance at the end of the period | 797 | 1,476 | 797 | 1,476
Foreign |  |  |  |
Allowance for probable loan losses |  |  |  |
Balance at the beginning of the period | 1,030 | 1,293 | 1,140 | 1,359
Losses charged to allowance |  | (5) | (20) | (5)
Recoveries credited to allowance | 5 |  | 5 |
Net losses charged to allowance | 5 | (5) | (15) | (5)
Provision (credit) charged to operations | 11 | (67) | (79) | (133)
Balance at the end of the period | $ 1,046 | $ 1,221 | $ 1,046 | $ 1,221

X
- Definition Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, net of collections of loans and lease receivables which had previously been fully or partially charged off as bad debts. + References No definition available. + Details
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- Definition Reflects an add back to the net allowance balance for loans and lease receivables for recoveries on previously charged off loan receivables. + References No definition available. + Details
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- Definition Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + 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 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 8 -Subparagraph a(ii) -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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