XML 44 R31.htm IDEA: XBRL DOCUMENT
v3.20.2

Summary of Significant Accounting Policies Summary of Significant Accounting Policies:Vendor Rebates and Allowances (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Accounting Policies [Abstract] |  |
Vendor Rebates and Allowances | $ 7.7 | $ 9.2

X
- Definition Rebates and allowances receivable from the vendor as of the balance sheet date. + References No definition available. + Details
Name: | bcc_VendorRebatesAndAllowances
Namespace Prefix: | bcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration