XML 31 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Loans and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011 | Jun. 30, 2011
--- | --- | --- | ---
Internal loan grading by class of loans |  |  |
Total loans | $ 3,065,439 | $ 3,013,498 | $ 2,861,844
Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 2,662,879 |  | 2,502,004
Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 319,097 |  | 269,320
Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 62,692 |  | 69,746
Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 20,771 |  | 20,676
Grade 5 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans |  |  | 98
Non-residential real estate [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 1,141,051 |  | 980,702
Non-residential real estate [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 983,946 |  | 834,857
Non-residential real estate [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 118,825 |  | 103,359
Non-residential real estate [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 28,514 |  | 33,446
Non-residential real estate [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 9,766 |  | 9,040
Residential real estate [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 721,149 |  | 689,169
Residential real estate [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 619,115 |  | 601,469
Residential real estate [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 81,324 |  | 68,651
Residential real estate [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 15,920 |  | 12,970
Residential real estate [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 4,790 |  | 6,079
Non-consumer non-real estate [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 697,416 |  | 712,438
Non-consumer non-real estate [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 610,214 |  | 638,872
Non-consumer non-real estate [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 78,825 |  | 61,481
Non-consumer non-real estate [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 7,211 |  | 10,710
Non-consumer non-real estate [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 1,166 |  | 1,375
Consumer non-real estate [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 200,427 |  | 198,578
Consumer non-real estate [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 187,768 |  | 189,220
Consumer non-real estate [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 10,204 |  | 6,891
Consumer non-real estate [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 2,122 |  | 2,172
Consumer non-real estate [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 333 |  | 295
Other loans [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 155,984 |  | 160,237
Other loans [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 151,330 |  | 153,104
Other loans [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 2,917 |  | 2,463
Other loans [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 1,027 |  | 2,050
Other loans [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 710 |  | 2,620
Acquired loans [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 149,412 |  | 120,720
Acquired loans [Member] | Grade 1 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 110,506 |  | 84,482
Acquired loans [Member] | Grade 2 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 27,002 |  | 26,475
Acquired loans [Member] | Grade 3 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 7,898 |  | 8,398
Acquired loans [Member] | Grade 4 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans | 4,006 |  | 1,267
Acquired loans [Member] | Grade 5 [Member] |  |  |
Internal loan grading by class of loans |  |  |
Total loans |  |  | $ 98

X
- Details
Name: | banf_FinancingReceivableCreditQualityIndicatorsAbstract
Namespace Prefix: | banf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes 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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -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
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant