Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2024
Accounting Policies [Abstract]
General	General PotlatchDeltic Corporation and its subsidiaries (collectively referred to in this report as the company, us, we or our) is a leading timberland Real Estate Investment Trust (REIT) with operations in nine states. We are engaged in activities associated with timberland management, including the sale of timber, the management of nearly 2.2 million acres of timberlands and the purchase and sale of timberlands. We are also engaged in the manufacturing and sale of wood products and the development of real estate. Our timberlands, real estate development projects and all of our wood products facilities are located within the continental United States. The primary market for our products is the United States. We converted to a REIT effective January 1, 2006.
Condensed Consolidated Financial Statements	Condensed Consolidated Financial Statements The accompanying unaudited Condensed Consolidated Financial Statements provide an overall view of our results and financial condition and reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. Except as otherwise disclosed in these Notes to Condensed Consolidated Financial Statements, such adjustments are of a normal, recurring nature. Intercompany transactions and accounts have been eliminated in consolidation. The Condensed Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission pertaining to interim financial statements. Certain disclosures normally provided in accordance with accounting principles generally accepted in the United States (GAAP) have been omitted. This Quarterly Report on Form 10-Q should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the Securities and Exchange Commission on February 15, 2024. Results of operations for interim periods should not be regarded as necessarily indicative of the results that may be expected for the full year.
Use of Estimates	Use of Estimates The preparation of our Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and requires judgments affecting the amounts reported in the financial statements and the accompanying notes. Actual results may differ materially from our estimates.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. ASU 2023-07 provides updates to qualitative and quantitative reportable segment disclosure requirements, including enhanced disclosures about significant segment expense categories that are regularly reported to the chief operating decision maker and included in each reported measure of a segment’s profit or loss and increased interim disclosure requirements, among others. The adoption of this ASU on January 1, 2024, including the required retrospective application for all periods presented in the financial statements, will be reflected in our annual financial statements for the year ended December 31, 2024, and interim financial statements beginning in 2025. Management is currently evaluating the impact of this ASU on the company's financial statement disclosures. Recent Accounting Standards Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 provides qualitative and quantitative updates to the rate reconciliation and income taxes paid disclosures, among others, in order to enhance the transparency of income tax disclosures, including consistent categories and greater disaggregation of information in the rate reconciliation and disaggregation by jurisdiction of income taxes paid. The ASU is effective for fiscal years beginning after December 15, 2024. The amendments may be applied prospectively or retrospectively, and early adoption is permitted. Management is currently evaluating this ASU to determine its impact on the company's financial statement disclosures.
Reclassifications	Reclassifications Certain prior period reclassifications were made to conform with the current period presentation. These reclassifications had no effect on reported net income (loss), net income (loss) per share, comprehensive income (loss), cash flows, total assets, total liabilities, or shareholders' equity as previously reported.

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Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.

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The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

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