Share-Based Compensation Plans - Compensation Expense (Details) (USD $) In Millions, unless otherwise specified
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12 Months Ended |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
$ 17.3us-gaap_AllocatedShareBasedCompensationExpense |
$ 9.9us-gaap_AllocatedShareBasedCompensationExpense |
$ 8.0us-gaap_AllocatedShareBasedCompensationExpense |
Income tax benefit |
(5.6)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense |
(3.4)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense |
(2.7)us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense |
Share-based payment expense, net of tax |
11.7us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax |
6.5us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax |
5.3us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax |
Fair value of shares vested |
4.5us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 |
6.1us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 |
5.0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 |
Performance Shares PSU [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
6.8us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
4.0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
Unrecognized expenses for nonvested awards |
5.6us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |
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Weighted average number of years |
1 year 9 months 18 days |
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Market Share Units MSU [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
1.6us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_MarketShareUnitsMember |
1.8us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_MarketShareUnitsMember |
0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_MarketShareUnitsMember |
Unrecognized expenses for nonvested awards |
0.7us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = bco_MarketShareUnitsMember |
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Weighted average number of years |
1 year 8 months 12 days |
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Restricted Stock Units [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
6.0us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
3.1us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
5.4us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
Unrecognized expenses for nonvested awards |
3.6us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
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Weighted average number of years |
1 year 6 months |
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Fair value of shares vested |
4.1us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
4.1us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
4.4us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
Deferred Stock Units [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
0.6us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
0.5us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
0.5us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
Unrecognized expenses for nonvested awards |
0.1us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
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Weighted average number of years |
3 months 18 days |
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Fair value of shares vested |
0.3us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = bco_DeferredStockUnitsMember |
Stock Options [Member] |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Compensation Expense |
2.3us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
0.5us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
2.1us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Unrecognized expenses for nonvested awards |
0.1us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
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Weighted average number of years |
7 months 6 days |
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Fair value of shares vested |
$ 0.1us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
$ 2.0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
$ 0.6us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |