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Accrued customer rebates and allowances as of the balance sheet date.

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Rebates and allowances receivable from the vendor as of the balance sheet date.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Fair value portion of notes payable.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
bcc_VendorAndCustomerRebatesAndAllowances [Abstract]
Vendor rebates and allowances	$ 2.8bcc_VendorRebatesAndAllowances		6.1bcc_VendorRebatesAndAllowances
Customer Rebates and Allowances	18.4bcc_CustomerRebatesAndAllowances		24.7bcc_CustomerRebatesAndAllowances
Operating Leases, Rent Expense, Net [Abstract]
Rental expense	4.5us-gaap_OperatingLeasesRentExpenseNet	3.9us-gaap_OperatingLeasesRentExpenseNet
Accounts Receivable [Member] \| Credit Concentration Risk [Member] \| Single Customer [Member]
Risks and Uncertainties [Abstract]
Concentration of credit risk	11.00%		11.00%
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
6.375% senior notes, book value	300.0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
6.375% senior notes, book value	315.0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Money market funds, fair value	$ 107.3		137.6