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Financial Instruments (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011
Derivative [Line Items] |  |
Term of derivative instruments, lower range (in months) | 1 month |
Term of derivative instruments, upper range (in months) | 14 months |
Foreign Exchange Contract [Member] |  |
Derivative [Line Items] |  |
Amount of gain (loss) estimated to be reclassified from accumulated other comprehensive loss to cost of sales or interest expense | $ (3.3) |
Foreign Exchange Contract [Member] | Forward Contracts [Member] |  |
Derivative [Line Items] |  |
Notional values | 116.0 | 112.1
Foreign Exchange Contract [Member] | Options Held [Member] |  |
Derivative [Line Items] |  |
Notional values | 69.7 | 106.8
Commodity Contract [Member] |  |
Derivative [Line Items] |  |
Notional values | 26.0 | 27.1
Amount of gain (loss) estimated to be reclassified from accumulated other comprehensive loss to cost of sales or interest expense | (0.3) |
Interest Rate Contract [Member] | Forward Contracts [Member] |  |
Derivative [Line Items] |  |
Notional values | 100.0 | 50.0
Amount of gain (loss) estimated to be reclassified from accumulated other comprehensive loss to cost of sales or interest expense | 0.9 |
Amount of net deferred gain (loss) associated with all forward starting interest rate swaps included in accumulated other comprehensive income | (3.7) | 0.5
Notional value of terminated forward starting interest rate swaps | 250.0 |
Notional value of terminated forward starting interest rate swaps | $ 150.0 |

X
- Definition Amount of net deferred gain (loss) associated with all forward starting interest rate swaps included in accumulated other comprehensive income as of the balance sheet date. Amount includes the unamortized balance relating to terminated forward starting interest rate swaps and also the unrealized gain/loss from outstanding forward starting interest rate swaps. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate notional amount of terminated interest rate swaps with gains designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract. + References No definition available. + Details
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Namespace Prefix: | bc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate notional amount of terminated interest rate swaps with losses designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract. + References No definition available. + Details
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Namespace Prefix: | bc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Term of derivative instruments hedging forecasted transactions, at lower range + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Term of derivative instruments hedging forecasted transactions, at upper range. + References No definition available. + Details
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Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | duration

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- Details
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