XML 82 R38.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Loans and Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2012
--- | --- | --- | ---
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | $ 20,933 | $ 20,549 | $ 20,721
Non-residential real estate [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | 9,666 |  | 9,768
Residential real estate [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | 4,335 |  | 4,754
Non-consumer non-real estate [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | 1,449 |  | 1,425
Consumer non-real estate [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | 187 |  | 143
Other loans [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | 3,052 |  | 1,464
Acquired loans [Member] |  |  |
Summary of amounts included in nonaccrual loans segregated by class of loans |  |  |
Nonaccrual loans, Total | $ 2,244 |  | $ 3,167

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

X
- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant