XML 54 R42.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Long-Term Debt - Long-Term Debt Instrument (Additional Information) (Detail) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
5.370% senior notes, Series D, quarterly interest payments, balloon due 2015 |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, stated percentage | 5.37% | 5.37%
Debt instrument maturity year | 2015 | 2015
5.660% senior notes, Series C, semi-annual interest payments, balloon due 2016 |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, stated percentage | 5.66% | 5.66%
Debt instrument maturity year | 2016 | 2016
4.500% senior notes, Series E, quarterly interest payments, balloon due 2018 |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, stated percentage | 4.50% | 4.50%
Debt instrument maturity year | 2018 | 2018
4.200% senior notes, semi-annual interest payments, balloon due 2024 |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, stated percentage | 4.20% | 4.20%
Debt instrument maturity year | 2024 | 2024
5-year term-loan facility, periodic interest and principal payments, currently LIBOR plus 1.375%, expires May 20, 2019 |  |
Debt Instrument [Line Items] |  |
Line of credit facility, expiration period | 5 years | 5 years
Line of credit facility, expiration date | May 20, 2019 | May 20, 2019
5-year term-loan facility, periodic interest and principal payments, currently LIBOR plus 1.375%, expires May 20, 2019 | LIBOR |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable interest rate | 1.375% | 1.375%
5-year revolving-loan facility, periodic interest payments, currently LIBOR plus 1.175%, plus commitment fees of 0.20%, expires May 20, 2019 |  |
Debt Instrument [Line Items] |  |
Line of credit facility, expiration period | 5 years | 5 years
Line of credit facility, commitment fee percentage | 0.20% | 0.20%
Line of credit facility, expiration date | May 20, 2019 | May 20, 2019
5-year revolving-loan facility, periodic interest payments, currently LIBOR plus 1.175%, plus commitment fees of 0.20%, expires May 20, 2019 | LIBOR |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable interest rate | 1.175% | 1.175%
Revolving credit loan, quarterly interest payments, LIBOR plus up to 1.40% and availability fee up to 0.25%, expires December 31, 2016 |  |
Debt Instrument [Line Items] |  |
Line of credit facility, expiration date | Dec. 31, 2016 | Dec. 31, 2016
Maximum | Revolving credit loan, quarterly interest payments, LIBOR plus up to 1.40% and availability fee up to 0.25%, expires December 31, 2016 |  |
Debt Instrument [Line Items] |  |
Line of credit facility, commitment fee percentage | 0.25% | 0.25%
Maximum | Revolving credit loan, quarterly interest payments, LIBOR plus up to 1.40% and availability fee up to 0.25%, expires December 31, 2016 | LIBOR |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable interest rate | 1.40% | 1.40%

X
- Definition Debt Instruments Maturity Year + References No definition available. + Details
Name: | bro_DebtInstrumentsMaturityYear
Namespace Prefix: | bro_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FivePointThreeSevenZeroPercentSeniorNotesDueTwoThousandFifteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FivePointSixSixZeroPercentSeniorNotesDueTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FourPointFiveZeroZeroPercentSeniorNotesDueTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FourPointTwoZeroZeroPercentSeniorNotesDueTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FiveYearTermLoanFacilityExpiresInTwoThousandNinteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_FiveYearRevolvingLoanFacilityExpiresInTwoThousandNinteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bro_RevolvingCreditLoanExpiresInTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |