Recent and Prospective Accounting Pronouncements (Notes)	6 Months Ended
Jun. 30, 2015
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	RECENT AND PROSPECTIVE ACCOUNTING PRONOUNCEMENTS In April 2015, the Financial Accounting Standard Board issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts.AUS 2015-03 is effective for annual reporting periods beginning after December 15, 2015, including interim periods within the reporting periods and it applied retrospectively. Early adoption is permitted for financial statements that have not been previously issued. LP early adopted this standard as of June 30, 2015. Prior to ASU 2015-03, deferred debt costs were reported on the balance sheet as assets and amortized as interest expense. The Consolidated Balance Sheet as of December 31, 2014 has been adjusted to apply the change in accounting principle retrospectively. There is no effect on the income statement as a result of the change in accounting principle. Debt issuance costs of $4.7 million previously reported as assets on the Consolidated Balance Sheet as of December 31, 2014 have been reclassified as a direct deduction from the carrying amount of the related debt liability. In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, Revenue Recognition. The new revenue recognition standard requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective on January 1, 2018. LP is currently evaluating the effect that adopting this new accounting guidance will have on its consolidated results of operations and financial position.

RECENT AND PROSPECTIVE ACCOUNTING PRONOUNCEMENTS

In April 2015, the Financial Accounting Standard Board issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts.AUS 2015-03 is effective for annual reporting periods beginning after December 15, 2015, including interim periods within the reporting periods and it applied retrospectively. Early adoption is permitted for financial statements that have not been previously issued. LP early adopted this standard as of June 30, 2015. Prior to ASU 2015-03, deferred debt costs were reported on the balance sheet as assets and amortized as interest expense. The Consolidated Balance Sheet as of December 31, 2014 has been adjusted to apply the change in accounting principle retrospectively. There is no effect on the income statement as a result of the change in accounting principle. Debt issuance costs of $4.7 million previously reported as assets on the Consolidated Balance Sheet as of December 31, 2014 have been reclassified as a direct deduction from the carrying amount of the related debt liability.

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, Revenue Recognition. The new revenue recognition standard requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective on January 1, 2018. LP is currently evaluating the effect that adopting this new accounting guidance will have on its consolidated results of operations and financial position.