CatchMark Merger - Schedule of Cost of Acquisition for Accounting Purposes (Details) - CatchMark Merger [Member] $ / shares in Units, $ in Thousands	Sep. 14, 2022 USD ($) $ / shares shares
Asset Acquisition [Line Items]
Total CatchMark shares and Partnership OP units outstanding to be converted | shares	48,688,754	[1]
Exchange ratio	0.23	[2]
PotlatchDeltic shares issued as merger consideration | shares	11,198,413
Price per PotlatchDeltic common share | $ / shares	$ 44.95	[3]
Value of PotlatchDeltic common shares issued as merger consideration	$ 503,369
Attribution to consideration transferred for pre-merger services	4,945	[4]
Total value of equity consideration	508,314
Cash paid in lieu of fractional shares	101
Transaction costs capitalized	9,341	[5]
Consideration transferred	$ 517,756

[1] Number of shares of CatchMark common stock and Partnership OP units issued and outstanding as of September 14, 2022, immediately prior to the merger, net of fractional shares. These shares exclude 1.5 million unvested CatchMark share-based awards that fully vested, were exchanged for PotlatchDeltic shares upon closing of the merger and were allocated between the pre-merger and post-merger periods.

[2] Exchange ratio per the merger agreement.

[3] Closing price of PotlatchDeltic common stock on September 14, 2022.

[4] Represents the fair value of CatchMark unvested share-based awards that fully vested upon closing of the merger allocated to the pre-merger period, net of impact from shares withheld to cover employee taxes.

[5] Transaction costs include items such as investment banking fees, legal services, and other professional fees directly attributable to the merger. These costs are capitalized in an asset acquisition.