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Income Taxes - Significant Components of Current Deferred Tax Assets (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Income Tax Disclosure [Abstract] |  |
Deferred profit-sharing contingent commissions | $ 10,335 bro_DeferredProfitSharingContingentCommissions | $ 9,713 bro_DeferredProfitSharingContingentCommissions
Net operating loss carryforwards | 951 bro_DeferredTaxAssetsOperatingLossCarryforwardsCurrent | 8,408 bro_DeferredTaxAssetsOperatingLossCarryforwardsCurrent
Accruals and reserves | 14,145 bro_DeferredTaxAssetsAccrualsAndReserves | 11,155 bro_DeferredTaxAssetsAccrualsAndReserves
Total current deferred tax assets | $ 25,431 us-gaap_DeferredTaxAssetsNetCurrent | $ 29,276 us-gaap_DeferredTaxAssetsNetCurrent

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- Definition Deferred profit-sharing contingent commissions. + References No definition available. + Details
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- Definition Deferred tax assets accruals and reserves. + References No definition available. + Details
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- Definition Deferred Tax Assets, Operating Loss Carryforwards, Current + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31928-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31958-109318 + Details
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