2.2.0.25falsefalse0219 - Disclosure - Employee Stock Ownership Plantruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0000805022duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0bpl_EmployeeStockOwnershipPlanAbstractbplfalsenadurationEmployee Stock Ownership Plan.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringEmployee Stock Ownership Plan.falsefalseEmployee Stock Ownership Plan [Abstract]3false0us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00  <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>19. EMPLOYEE STOCK OWNERSHIP PLAN</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     Services Company provides the ESOP to the majority of its employees hired before September 16, 2004. Employees hired by Services Company after September 15, 2004, and certain employees covered by a union multiemployer pension plan, do not participate in the ESOP. The ESOP owns all of the outstanding common stock of Services Company. At December 31, 2010, the ESOP was directly obligated to a third-party lender for $1.5 million with respect to the 3.60% ESOP Notes. See Note 13 for further information. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     Services Company stock is released to employee accounts in the proportion that current payments of principal and interest on the 3.60% ESOP Notes bear to the total of all principal and interest payments due under the 3.60% ESOP Notes. Individual employees are allocated shares based upon the ratio of their eligible compensation to total eligible compensation. Eligible compensation generally includes base salary, overtime payments and certain bonuses. Total ESOP related costs charged to earnings were $5.0 million, $2.5 million and $3.4 million for the years ended December 31, 2010, 2009 and 2008, respectively. </div> <div align="left"> </div> </div>  <!-- Begin Block Tagged NotefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclosure of the description of the plan, the basis for determining contributions, including the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the disclosure may include the basis for releasing shares and how dividends on allocated and unallocated shares are used. Disclosure may also include a description of the accounting policies followed for ESOP transactions, including the method of measuring compensation, the classification of dividends on ESOP shares, and the treatment of ESOP shares for EPS computations. If the employer has both old ESOP shares for which it does not adopt the latest guidance and new ESOP shares for which the new guidance is required, the accounting policies for both blocks of shares may be described. Disclosure may also include he amount of compensation cost recognized during the period, the number of allocated shares, committed-to-be-released shares, and suspense shares held by the ESOP at the balance-sheet date, the fair value of unearned ESOP shares at the balance-sheet date for shares accounted for under the latest guidance, the existence and nature of any repurchase obligation, including disclosure of the fair value of the shares allocated as of the balance-sheet date, which are subject to a repurchase obligation.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 falsefalseEMPLOYEE STOCK OWNERSHIP PLAN12Employee Stock Ownership PlanUnKnownUnKnownUnKnownUnKnownfalsetrue