2.2.0.7 false Goodwill and Other Intangible Assets and Liabilities (Policies) 0405 - Disclosure - Goodwill and Other Intangible Assets and Liabilities (Policies) true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 2 Goodwill and Other Intangible Assets and Liabilities (Policies) [Abstract] 0 bni_GoodwillAndOtherIntangibleAssetsAndLiabilitiesPoliciesAbstract bni false na duration Goodwill and Other Intangible Assets and Liabilities Policies Abstract. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Goodwill and Other Intangible Assets and Liabilities Policies Abstract. false 3 Intangible assets and liabilities finite-lived policy 1 bni_IntangibleAssetsAndLiabilitiesFiniteLivedPolicyTextBlock bni false na duration Describes an entity's accounting policy for finite-lived intangible assets and liabilities. This accounting policy also may... false false false false false false false false false false false verboselabel false 1 false false false false 0 0 <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: BNI-20100630_note5_accounting_policy_table1 - bni:IntangibleAssetsAndLiabilitiesFiniteLivedPolicyTextBlock--> <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 6pt">&#160;&#160;&#160;&#160;&#160;Amortized intangible assets and liabilities are amortized either on a straight-line basis over their estimated economic lives or based on the pattern in which the economic benefits are consumed. The straight-line method of amortization reflects an appropriate allocation of the cost of the intangible net assets to earnings in proportion to the amount of economic benefits obtained annually by the Company. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged false false false us-types:textBlockItemType textblock Describes an entity's accounting policy for finite-lived intangible assets and liabilities. This accounting policy also may address: (1) the amortization method used (2) the useful lives of such assets or liabilities (3) how the entity assesses and measures impairment of such assets or liabilities. No authoritative reference available. false 1 2 false UnKnown UnKnown UnKnown false true