XML 63 R36.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Loans and Allowance for Loan Losses - Schedule of Loans Outstanding by Category (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2012
--- | --- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Loans held for sale (included above) | $ 4,934 | $ 11,257 | $ 13,384
Total loans | 3,358,938 | 3,242,427 | 3,116,096
Percent | 100.00% | 100.00% | 100.00%
Taxable [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 10,248 | 9,412 | 7,786
Percent | 0.31% | 0.29% | 0.25%
Tax-exempt [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 12,232 | 13,194 | 13,749
Percent | 0.36% | 0.41% | 0.44%
Commercial and Industrial [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 566,670 | 559,274 | 541,130
Percent | 16.87% | 17.25% | 17.37%
Oil & gas production & equipment [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 139,605 | 154,380 | 131,642
Percent | 4.16% | 4.76% | 4.22%
Agriculture [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 89,258 | 93,274 | 83,146
Percent | 2.66% | 2.88% | 2.67%
Construction [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 283,468 | 226,102 | 211,505
Percent | 8.44% | 6.97% | 6.79%
Farmland [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 133,397 | 125,033 | 114,043
Percent | 3.97% | 3.86% | 3.66%
One to four family residences [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 696,651 | 669,230 | 674,457
Percent | 20.74% | 20.64% | 21.64%
Multifamily residential properties [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 57,825 | 50,721 | 50,659
Percent | 1.72% | 1.56% | 1.63%
Commercial [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 1,100,544 | 1,068,445 | 1,026,097
Percent | 32.76% | 32.95% | 32.93%
Consumer [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | 248,025 | 253,002 | 241,864
Percent | 7.38% | 7.80% | 7.76%
Other (not classified above) [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Total loans | $ 21,015 | $ 20,360 | $ 20,018
Percent | 0.63% | 0.63% | 0.64%

X
- Definition Loans Percent + References No definition available. + Details
Name: | banf_LoansPercent
Namespace Prefix: | banf_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
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=28367877&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References No definition available. + Details
Name: | us-gaap_LoansHeldForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant