XML 91 R66.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Postretirement Benefit Plans (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2020 USD ($) | Dec. 31, 2021 USD ($) employees | Dec. 31, 2020 USD ($) employees | May 31, 2020 USD ($) | Dec. 31, 2019 USD ($) employees | May 31, 2019 USD ($)
Multiemployer Defined Contributory Trust Plan [Member] |  |  |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |  |  |
Number of employees in plan | employees |  | 760 | 735 |  | 1,215 |
Required defined contributory trust contribution, percent of earnings. |  | 4.50% | 4.50% |  | 4.50% |
Required employer's contribution per hour per active employee |  |  | $ 0.90 |  | $ 0.90 |
Period Contributions |  | $ 1,900,000 | 2,400,000 |  | $ 2,600,000 |
Multiemployer Health and Welfare Plan [Member] |  |  |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |  |  |
Number of employees in plan | employees |  |  |  |  | 475 |
Required employer's contribution per hour per active employee | $ 7.00 |  |  | $ 6.70 |  | $ 6.40
Period Contributions |  |  | $ 5,800,000 |  | $ 6,700,000 |

X
- Definition Represents the number of employees in multiemployer plans. + References No definition available. + Details
Name: | bcc_Numberofemployeesinmultiemployerplans
Namespace Prefix: | bcc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the required employer's contribution per hour per active employee. + References No definition available. + Details
Name: | bcc_Requiredemployerscontributionperhourperactiveemployee
Namespace Prefix: | bcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=29639808&loc=d3e29008-114946 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947 + Details
Name: | us-gaap_MultiemployerPlanEmployerContributionCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employer contribution required by collective-bargaining arrangement (CBA) to total contribution from all participating employers in multiemployer pension plan determined to be individually insignificant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
Name: | us-gaap_MultiemployerPlanPensionInsignificantEmployerContributionUnderCollectiveBargainingArrangementToAllParticipatingEmployerContributionsPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_MultiemployerPlansLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanNameAxis=bcc_MultiemployerDefinedContributoryTrustPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanNameAxis=bcc_MultiemployerHealthandWelfarePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |