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