2.2.0.25 false Sheet 0100006 - Document - Risk/Return Summary - Sterling Capital Short Term Bond Fund (Class A) {Unlabeled} Risk/Return Summary - Sterling Capital Short Term Bond Fund (Class A) http://bbtfunds.com/role/RiskReturnSummarySterlingCapitalShortTermBondFundClass true R7.xml false Sheet 0100032 - Document - Risk/Return Summary - Sterling Capital Short Term Bond Fund (Class Institutional) {Unlabeled} Risk/Return Summary - Sterling Capital Short Term Bond Fund (Class Institutional) http://bbtfunds.com/role/RiskReturnSummarySterlingCapitalShortTermBondFundClassInstitutional true R33.xml false Sheet 040000 - Disclosure - Risk/Return Detail Data {Elements} Risk/Return Detail Data http://bbtfunds.com/role/RiskReturnDetailData false R219.xml true Book All Reports All Reports false 1 5 5 0 2 45 true false TwelveMonthsEnded_01Feb2011_S000003547_Member_Prospectus_One_Member_C000009858_Member 21 TwelveMonthsEnded_01Feb2011_S000003547_Member_Prospectus_One_Member 12 TwelveMonthsEnded_01Feb2011 9 TwelveMonthsEnded_01Feb2011_S000003547_Member_Prospectus_Two_Institutional_Class_Member_C000009857_Member 12 TwelveMonthsEnded_01Feb2011_S000003547_Member_Prospectus_Two_Institutional_Class_Member 10 true true