10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2018

or

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from to

Commission File Number 1-32729

PotlatchDeltic Corporation

(Exact name of registrant as specified in its charter)

Delaware	82-0156045
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)

601 West First Avenue, Suite 1600
Spokane, Washington	99201
(Address of principal executive offices)	(Zip Code)

(509) 835-1500

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☐    No ☒ 

Indicate by check mark whether the registrant has submitted electronically, if any, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act).    ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange act).

Yes  ☐    No  ☒

The number of shares of common stock of the registrant outstanding as of October 29, 2018 was 62,754,582.

POTLATCHDELTIC CORPORATION AND CONSOLIDATED SUBSIDIARIES

Table of Contents

		Page Number
PART I. - FINANCIAL INFORMATION
ITEM 1.	Financial Statements (unaudited)
	Condensed Consolidated Statements of Income	2
	Condensed Consolidated Statements of Comprehensive Income	3
	Condensed Consolidated Balance Sheets	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Condensed Consolidated Financial Statements	7
ITEM 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	27
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	43
ITEM 4.	Controls and Procedures	43
PART II. - OTHER INFORMATION
ITEM 1.	Legal Proceedings	44
ITEM 1A.	Risk Factors	44
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	44
ITEM 6.	Exhibits	45
SIGNATURE		46

Part I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

PotlatchDeltic Corporation and Consolidated Subsidiaries

Condensed Consolidated Statements of Income

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018			2017			2018			2017
Revenues	$	289,199		$	190,441		$	757,329		$	503,351
Costs and expenses:
Cost of goods sold		195,584			124,727			515,645			348,581
Selling, general and administrative expenses		14,901			13,240			45,449			37,687
Deltic merger-related costs		972			27			21,245			27
Environmental charges for Avery Landing		—			4,978			—			4,978
Loss (gain) on lumber price swap		—			2,080			—			(1,185	)
		211,457			145,052			582,339			390,088
Operating income		77,742			45,389			174,990			113,263
Interest expense, net		(10,109	)		(7,336	)		(25,125	)		(19,654	)
Non-operating pension and other postretirement employee benefit costs		(1,942	)		(1,596	)		(5,707	)		(4,788	)
Income before income taxes		65,691			36,457			144,158			88,821
Income taxes		(5,355	)		(2,757	)		(23,077	)		(13,956	)
Net income	$	60,336		$	33,700		$	121,081		$	74,865
Net income per share:
Basic	$	0.96		$	0.83		$	2.06		$	1.83
Diluted	$	0.93		$	0.82		$	2.03		$	1.82
Dividends per share	$	0.40		$	0.375		$	1.20		$	1.125
Weighted-average shares outstanding (in thousands):
Basic		62,986			40,829			58,765			40,814
Diluted		64,722			41,250			59,542			41,183

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

PotlatchDeltic Corporation and Consolidated Subsidiaries

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Net income	$	60,336		$	33,700		$	121,081		$	74,865
Other comprehensive income, net of tax:
Pension and other postretirement employee benefits:
Amortization of prior service credit included in net income, net of tax benefit of $(565), $(838), $(1,695) and $(2,513)		(1,608	)		(1,309	)		(4,824	)		(3,929	)
Amortization of actuarial loss included in net income, net of tax expense of $1,164, $1,562, $3,491 and $4,686		3,311			2,443			9,934			7,330
Cash flow hedge, net of tax expense (benefit) of $166, $0, $386 and $(87)		1,591			—			1,850			(137	)
Other comprehensive income, net of tax		3,294			1,134			6,960			3,264
Comprehensive income	$	63,630		$	34,834		$	128,041		$	78,129

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

PotlatchDeltic Corporation and Consolidated Subsidiaries

Condensed Consolidated Balance Sheets

(Unaudited)

(Dollars in thousands)	September 30, 2018			December 31, 2017
ASSETS
Current assets:
Cash and cash equivalents	$	137,535		$	120,457
Customer receivables, net		39,029			11,240
Inventories		73,864			50,132
Other current assets		18,988			11,478
Total current assets		269,416			193,307
Property, plant and equipment, net		340,146			77,229
Investment in real estate held for development and sale		76,523			—
Timber and timberlands, net		1,684,049			654,476
Deferred tax assets, net		—			19,796
Trade name and customer relationships intangibles, net		19,241			—
Other long-term assets		23,696			8,271
Total assets	$	2,413,071		$	953,079
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Distribution payable	$	222,000		$	—
Accounts payable and accrued liabilities		80,258			55,201
Current portion of long-term debt		—			14,263
Current portion of pension and other postretirement employee benefits		6,088			5,334
Total current liabilities		308,346			74,798
Long-term debt		783,899			559,056
Pension and other postretirement employee benefits		89,035			103,524
Deferred tax liabilities, net		38,575			—
Other long-term obligations		14,147			15,159
Total liabilities		1,234,002			752,537
Commitments and contingencies
Stockholders' equity:
Common stock, $1 par value		62,755			40,612
Additional paid-in capital		1,483,750			359,144
Accumulated deficit		(256,280	)		(104,363	)
Accumulated other comprehensive loss		(111,156	)		(94,851	)
Total stockholders’ equity		1,179,069			200,542
Total liabilities and stockholders' equity	$	2,413,071		$	953,079

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

PotlatchDeltic Corporation and Consolidated Subsidiaries

Condensed Consolidated Statements of Cash Flows

(Unaudited)

	Nine Months Ended September 30,
(Dollars in thousands)	2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	121,081		$	74,865
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		53,685			21,908
Basis of real estate sold		10,673			6,351
Change in deferred taxes		13,879			(925	)
Pension and other postretirement employee benefits		12,221			9,863
Equity-based compensation expense		6,518			3,536
Other, net		(1,220	)		(1,467	)
Change in working capital and operating-related activities, net		(13,289	)		20,489
Real estate development expenditures		(3,081	)		—
Funding of qualified pension plans		(52,099	)		(5,275	)
Net cash from operating activities		148,368			129,345
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment		(18,496	)		(9,445	)
Timberlands reforestation and roads		(12,464	)		(11,577	)
Acquisition of timber and timberlands		(166	)		(22,033	)
Other, net		655			(106	)
Cash and cash equivalents acquired in Deltic merger		3,419			—
Net cash from investing activities		(27,052	)		(43,161	)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends to common stockholders		(75,305	)		(45,686	)
Proceeds from Potlatch revolving line of credit		100,000			—
Repayment of Potlatch revolving line of credit		(100,000	)		—
Revolving line of credit repayment attributable to Deltic		(106,000	)		—
Proceeds from issue of long-term debt		100,000			—
Repayment of long-term debt		(14,250	)		(5,000	)
Debt issuance costs		(2,434	)		—
Other, net		(2,541	)		(1,279	)
Net cash from financing activities		(100,530	)		(51,965	)
Change in cash, cash equivalents and restricted cash		20,786			34,219
Cash, cash equivalents and restricted cash at beginning of period		120,457			82,584
Cash, cash equivalents and restricted cash at end of period	$	141,243		$	116,803
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid during the period for:
Interest, net of amounts capitalized	$	23,183		$	17,381
Income taxes, net	$	10,335		$	13,923
NONCASH INVESTING AND FINANCING ACTIVITIES
Equity issued as consideration for our merger with Deltic	$	1,142,775		$	—
Earnings and profits distribution payable	$	222,000		$	—

5

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows.

(Dollars in thousands)	September 30, 2018		September 30, 2017
Cash and cash equivalents	$	137,535	$	116,803
Restricted cash included in other long-term assets1		3,708		—
Total cash, cash equivalents, and restricted cash	$	141,243	$	116,803

The accompanying notes are an integral part of these condensed consolidated financial statements.

¹ Amounts included in restricted cash represent proceeds held by a qualified intermediary that are intended to be reinvested in timber and timberlands.  

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Notes to Condensed Consolidated Financial Statements

For purposes of this report, any reference to “PotlatchDeltic,” “Potlatch,” “the company,” “we,” “us” and “our” means PotlatchDeltic Corporation and all of its wholly-owned subsidiaries, except where the context indicates otherwise.

We are a leading timberland real estate investment trust (REIT) with operations in seven states where we own nearly 2 million acres of timberland, six sawmills, an industrial grade plywood mill, a medium density fiberboard (MDF) plant and real estate development projects.

NOTE 1. BASIS OF PRESENTATION

Our unaudited condensed consolidated financial statements provide an overall view of our results and financial condition and include the results of Deltic Timber Corporation (Deltic) beginning February 21, 2018, the first full business day following the merger of Deltic into Portland Merger, LLC, a wholly-owned subsidiary of Potlatch. See Note 3: Merger with Deltic. Potlatch was renamed PotlatchDeltic Corporation immediately after consummation of the merger.

Intercompany transactions and accounts have been eliminated in consolidation.

The accompanying unaudited Condensed Consolidated Financial Statements 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. 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 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, 2017, as filed with the Securities and Exchange Commission on February 16, 2018. Results of operations for interim periods should not be regarded as necessarily indicative of the results that may be expected for the full year.

RECLASSIFICATIONS

Components of prior year pension plan and other postretirement benefit plan costs were reclassified to non-operating pension and other postretirement benefit costs to conform to the 2018 presentation. See Note 2: Recent Accounting Pronouncements.

NOTE 2. RECENT ACCOUNTING PRONOUNCEMENTS

New Accounting Standards – Recently Adopted

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014‑09, Revenue from Contracts with Customers: Topic 606, which requires an entity to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASU No. 2014-09 also included other guidance, including the presentation of a gain or loss recognized on the sale of a long-lived asset or a nonfinancial asset. We adopted ASU No. 2014-09 on January 1, 2018 using the cumulative effect method. There was no adjustment to accumulated deficit upon adoption. Adoption of this ASU resulted in expanded disclosures, but did not have a material impact on our condensed consolidated financial statements, processes or internal controls. See Note 5:Revenue Recognition for our expanded disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation – Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires an entity to present service cost within compensation expense and the other components of net benefit cost outside of income from operations. We adopted this ASU retrospectively on January 1, 2018, and have reclassified non-service costs from operating income to non-operating costs. There was no change to income before income taxes. The adjustments made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 are as follows:

	For the Three Months Ended September 30, 2017						For the Nine Months Ended September 30, 2017
(Dollars in thousands)	Previously Reported		Effect of Change		As Adjusted		Previously Reported		Effect of Change		As Adjusted
Operating income	$	43,793		1,596	$	45,389	$	108,475		4,788	$	113,263

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In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which reduces the complexity in the accounting standards by allowing the recognition of current and deferred income taxes for an intra-entity asset transfer, other than inventory, when the transfer occurs. We adopted this ASU on January 1, 2018 on a modified retrospective basis through a $1.3 million cumulative-effect adjustment directly to accumulated deficit as of January 1, 2018.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) Restricted Cash, which requires entities to include in their cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and restricted cash equivalents. The ASU does not define the terms restricted cash and restricted cash equivalents. The amendments are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The company adopted ASU 2016-18 during the first quarter of 2018, applying the standard retrospectively to all periods presented. The adoption of this standard did not have an impact on our historical condensed consolidated financial statements. At September 30, 2018 we had restricted cash of $3.7 million included in other long-term assets related to proceeds held by a qualified intermediary that are intended to be reinvested in timberlands.

In January 2017, the FASB issued ASU No. 2017-1, Business Combinations (Topic 805): Clarifying the Definition of a Business. The standard provides guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or a business. We adopted this ASU on January 1, 2018 and accounted for the merger with Deltic as an acquisition of a business.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815), Targeted Improvements to Accounting for Hedging Activities, which amends and simplifies existing guidance to allow companies to more accurately present the economic effects of risk management activities in the financial statements. ASU 2017-12 requires that when a hedge is deemed effective, hedge accounting must be applied to the entire change in fair value of the hedging instrument eliminating the notion of ineffective portions of the hedge relationship. The entire change in the fair value of the hedging instrument will be recorded in the same income statement line item as the hedged item and the ineffective portion will no longer be separately recognized in earnings. This ASU is effective for public entities for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted in any interim period. ASU 2017-12 is required to be adopted using a modified retrospective approach with the presentation and disclosure requirements only required on a prospective basis. We adopted ASU 2017-12 effective April 1, 2018, which resulted in no material impact to our condensed consolidated financial statements.

In February 2018, the FASB issued ASU No. 2018-2, Income Statement – Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the December 22, 2017, H.R. 1, Tax Cuts and Jobs Act (the Act). This ASU is effective for us on January 1, 2019, with early adoption permitted. We adopted this ASU on January 1, 2018 and reclassified the income tax effects of the Act on pension and other postretirement employee benefits and a cash flow hedge within accumulated other comprehensive loss to accumulated deficit. In future periods, our accounting policy will be to release income tax rate change effects from accumulated other comprehensive loss to accumulated deficit. Upon adoption, accumulated other comprehensive loss was increased by $23.3 million, with a corresponding decrease to accumulated deficit. See Note 11: Components of Accumulated Other Comprehensive Loss.

New Accounting Standards – Recently Issued

In August 2018, the FASB issued ASU No. 2018-15 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which clarifies the accounting for implementation costs in cloud computing arrangements. ASU 2018-15 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Topic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the disclosure requirements for defined benefit pension plans and other postretirement plans. ASU 2018-14 is effective for fiscal years after December 15, 2020, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2021 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements on fair value

8

measurements. ASU 2018-13 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07 Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. ASU 2018-07 is effective for fiscal years after December 15, 2018, including interim periods within those years. Early application of the amendment is permitted. We expect to adopt the standard on January 1, 2019. We are currently evaluating the impact of our pending adoption of ASU 2018-07 on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The objective of the new standard is to establish principles for lessees and lessors to report information about the amount, timing and uncertainty of cash flows arising from a lease and disclose key information about leasing arrangements. The new standard establishes a right-of-use model (ROU) that requires a lessee to recognize a ROU asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. For leases with a term of 12 months or less, the lessee is permitted to make an accounting policy election by class of underlying asset to not recognize lease assets and lease liabilities. The standard, along with subsequent amendments, is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years; early application is permitted. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparable period presented in the financial statements as its date of initial application.  

We expect to adopt ASU 2016-02, along with subsequent amendments, on January 1, 2019 and use the effective date as our date of initial application. Consequently, financial information will not be updated, and the disclosures required under the new standard will not be provided for dates and periods before January 1, 2019. The new standard provides several optional practical expedients in transition and for an entity’s ongoing accounting. We continue to assess and document the effect of this ASU and subsequent amendments either made or being contemplated by the FASB. This assessment and documentation includes reviewing all forms of leases, performing a completeness assessment over our lease population and analyzing the practical expedients. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets and lease liabilities, which includes not recognizing ROU assets or lease liabilities for short-term leases of those assets in transition.

We expect the adoption of this ASU will result in minor refinements to our controls over financial reporting and will significantly expand financial statement disclosures as we have operating leases covering office space, equipment and vehicles expiring at various dates through 2033. We currently expect our right-of use assets and lease liabilities recorded upon adoption will approximate the present value of our current future minimum lease payments required under our operating leases in effect upon adoption. Lease costs will generally continue to be recognized on a straight-line basis. As of December 31, 2017, the undiscounted cash flows of our operating leases were $14.4 million.

NOTE 3. MERGER WITH DELTIC

On February 20, 2018 (merger date), Deltic Timber Corporation (Deltic) merged into Portland Merger, LLC, a wholly-owned subsidiary of Potlatch. Deltic owned approximately 530,000 acres of timberland, operated two sawmills and a medium density fiberboard plant and was engaged in real estate development primarily in Arkansas. The merger creates a combined company with a diversified timberland base of nearly 2 million acres, including approximately 930,000 acres in Arkansas. It uniquely positions us to expand our integrated model of timberland ownership and lumber manufacturing, provide significant tax savings on Deltic’s timber harvest earnings and increase our exposure to the fast-growing Texas housing market.

Under the merger agreement, each issued and outstanding share of Deltic common stock was exchanged for 1.80 shares of Potlatch common stock, with cash paid in lieu of any fractional shares. Upon consummation of the merger, all outstanding Deltic stock options (which fully vested as of the merger date) and restricted stock units (RSUs) were converted into Potlatch stock options and RSUs, after giving effect to the 1.80 exchange ratio. Because the Deltic stock options are fully vested and relate to services rendered to Deltic prior to the merger, the replacement stock options are also fully vested and their fair value is included in the consideration transferred. A portion of the replacement RSUs relate to services to be performed post-merger and therefore are not included in consideration transferred. See additional details about replacement share-based payment awards in Note 12: Equity-Based Compensation.

9

The following table summarizes the total consideration transferred in the merger:

(Dollars in thousands, except share and per share amounts)
Number of shares of Deltic common stock outstanding1		12,121,223
Number of Deltic performance awards2		90,515
		12,211,738
Exchange ratio3		1.80
Potlatch shares issued		21,981,128
Price per Potlatch common share4	$	51.95
Aggregate value of Potlatch common shares issued	$	1,141,920
Cash paid in lieu of fractional shares	14
Fair value of stock options and RSUs5	841
Consideration transferred	$	1,142,775

¹ Number of shares of Deltic common stock issued and outstanding as of February 20, 2018, net of fractional shares.

² Number of shares of Deltic performance awards for pre-combination services rendered that vested upon closing of the merger.

³ Exchange ratio per the merger agreement.

⁴ Closing price of Potlatch common shares on February 20, 2018.

⁵ Fair value of Deltic stock options for pre-combination services rendered that vested upon closing of the merger, as well as RSUs for pre-combination services rendered.

On August 30, 2018, the board of directors approved a special distribution of $222.0 million, payable on November 15, 2018, to stockholders of record on September 27, 2018. The special distribution amount equals the company’s determination of the accumulated earnings and profits of Deltic as of merger date and must be distributed by the company prior to December 31, 2018 in order to maintain the company’s qualification as a REIT for U.S. federal income tax purposes. Common stockholders can elect to receive payment of the special distribution in the form of stock or cash, with the total cash payment to all stockholders limited to no more than 20%, or $44.4 million (Cash Amount), of the total distribution. If the aggregate amount of stockholder cash elections exceeds the Cash Amount, then the payment of such cash elections will be made on a pro rata basis to stockholders who made the cash election such that the aggregate amount paid in cash to such stockholders equals the Cash Amount, with the balance paid in shares of common stock. The declaration of this special distribution created a $222.0 million unconditional obligation for the company as of August 30, 2018 which is recorded as distribution payable on the Condensed Consolidated Balance Sheets at September 30, 2018. See Note: 3 Earnings Per Share for further discussion on the impact of the special distribution on diluted earnings per share.

The company entered into a two-year consulting agreement for $1.85 million with Deltic’s former Chief Executive Officer. While the agreement was terminated in the first quarter of 2018, payments are required to be made through the end of the two year term. This agreement was considered a separate transaction from the business combination, therefore the $1.85 million was recorded as merger costs in the first quarter of 2018.

We expensed approximately $1.0 million and $21.2 million of merger-related costs during the three and nine months ended September 30, 2018, respectively. See Note 13: Merger, Integration and other Costsfor the components of merger-related costs. These costs are included in Deltic merger-related costs in ourCondensed Consolidated Statements of Income.

The amount of revenue and income before income taxes from acquired Deltic operations included in our Condensed Consolidated Statement of Income for February 21, 2018 through September 30, 2018 are as follows:

(Dollars in thousands)	Three Months Ended September 30, 2018		Nine Months Ended September 30, 2018
Net sales	$	83,385	$	192,244
Income before income taxes	$	17,180	$	25,869

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Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2017 is as follows:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net sales	$	289,199	$	252,097	$	795,992	$	673,575
Net earnings attributable to PotlatchDeltic common shareholders	$	61,327	$	30,099	$	142,314	$	63,862
Basic earnings per share attributable to PotlatchDeltic common Shareholders	$	0.91	$	0.44	$	2.13	$	0.95
Diluted earnings per share attributable to PotlatchDeltic common shareholders	$	0.91	$	0.44	$	2.12	$	0.95

Pro forma net earnings attributable to PotlatchDeltic common shareholders excludes $1.0 million and $26.7 million of non-recurring merger-related costs incurred by both companies during the three and nine months ended September 30, 2018, respectively, of which $5.4 million were incurred by Deltic prior to the merger.

Pro forma basic and diluted earnings per share assumes issuance of approximately 22.0 million shares that were issued at the merger date as of the beginning of 2017. Pro forma basic and diluted earnings per share also assumes the issuance of 4.2 million shares as of the beginning of 2017, which is the estimated number of shares from the special distribution required to settle the estimated stock portion of the liability at September 30, 2018. Pro forma data may not be indicative of the results that would have been obtained had these events occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.

PotlatchDeltic has accounted for the merger transaction as the acquirer and has applied the acquisition method of accounting. Under the acquisition method, the assets acquired and liabilities assumed from Deltic were generally recorded as of the date of the merger at their respective estimated fair values.

Our September 30, 2018 Condensed Consolidated Balance Sheet includes the assets and liabilities of Deltic, which have been measured at fair value as of the merger date. The fair values of the assets acquired and liabilities assumed were preliminarily determined using the income, cost and market approaches, as applicable. The fair value measurements were generally based on significant inputs that are not observable in the market and thus represent Level 3 measurements as defined in ASC 820, Fair Value Measurements and Disclosures, except for certain long-term debt instruments assumed in the acquisition that can be valued using observable market inputs and are therefore Level 2 measurements. The income approach and cost approach were primarily used to value acquired timber and timberlands. The income approach was primarily used to value the acquired real estate held for development and sale. The income approach estimates fair value for an asset based on the present value of cash flow projected to be generated by the asset. Projected cash flows are discounted at rates of return that reflect the relative risk of achieving the cash flows and the time value of money. The cost approach, which estimates value by determining the current cost of replacing an asset with another of equivalent economic utility, was used, as appropriate, for property and equipment. The cost to replace a given asset reflects the estimated reproduction or replacement cost for the property, less an allowance for loss in value due to depreciation. The market approach was primarily used to value long-term debt instruments. The market approach estimates fair value for an asset based on values of recent comparable transactions.

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The following table summarizes the preliminary fair value measurements of assets acquired and liabilities assumed as of merger date:

(Dollars in thousands)	February 20, 2018		Measurement Period Adjustments			As Adjusted February 20, 2018
ASSETS
Cash and cash equivalents	$	3,419	$	—		$	3,419
Customer receivables, net		12,709		—			12,709
Inventories		17,316		—			17,316
Other current assets		8,276		524			8,800
Real estate held for development and sale		79,000		(2,000	)		77,000
Property, plant and equipment		265,901		(5,132	)		260,769
Timber and timberlands		1,060,000		913			1,060,913
Mineral rights		—		6,236			6,236
Trade name and customer relationships intangibles		19,000		500			19,500
Other long-term assets		2,010		1,546			3,556
Total assets acquired		1,467,631		2,587			1,470,218
LIABILITIES
Accounts payable and accrued liabilities		12,604		3,418			16,022
Current portion of pension and other postretirement employee benefits		754		—			754
Long-term debt		229,968		—			229,968
Pension and other postretirement employee benefits		36,155		—			36,155
Deferred tax liabilities, net		44,439		(831	)		43,608
Other long-term liabilities		936		—			936
Total liabilities assumed		324,856		2,587			327,443
Net assets acquired	$	1,142,775	$	—		$	1,142,775

The real estate held for development and sale adjustment of $2.0 million was based on continued refinement of information as of the merger date factored into the valuation. The property, plant and equipment adjustment of $ 5.1 million related to further refinement and review of the inputs associated with valuation of the acquired buildings and equipment including items such as estimated useful lives, maintenance expenditures and market comparables. The $ 0.9 million adjustment to timber and timberlands is a combination of the separation of the mineral rights value previously included in the timber and timberlands, offset by further revisions to the underlying valuation assumptions. The mineral rights measurement period adjustment of $6.2 million related to certain oil and gas royalty payments from third party extractive activities on the acquired land. This amount is included in other long-term assets in the Condensed Consolidated Balance Sheets. The other long-term asset measurement period adjustment of $1.5 million was related to sales and use tax credits from the State of Arkansas. The accounts payable and accrued liabilities measurement period adjustment of $3.4 million was primarily for estimated 2017 Deltic taxes payable estimated at merger date and adjusted with the 2017 tax return filing. Other measurement changes were not significant and mainly a result of continued refinement of information as of the merger date that have been factored into the valuation. As a result of these adjustments, during the three and nine months ended September 30, 2018 we recorded approximately $0 and $0.2 million, respectively, of additional depreciation, depletion and amortization expense as measurement period adjustments.

These estimated fair values are preliminary in nature and subject to adjustments, which could be material. We have not identified any material unrecorded pre-merger contingencies where the related asset, liability or impairment is probable and the amount can be reasonably estimated. We are currently in the process of finalizing our valuations related to the following:

• Timber and timberlands

• Mineral rights

• Property, plant and equipment

• Real estate held for development and sale

• Intangible assets, which includes trade names and customer relationships

• Other contractual rights and obligations

• Income taxes

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Our valuations will be finalized when certain information arranged to be obtained has been received, our review of that information has been completed and our review of the underlying assumptions within the valuation models has been completed. Prior to the finalization of the purchase price allocation, if information becomes available that would indicate it is probable that such events had occurred and the amounts can be reasonably estimated, such items will be included in the final purchase price allocation.

NOTE 4. EARNINGS PER SHARE

The following table reconciles the number of shares used in calculating basic and diluted earnings per share:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net income	$	60,336	$	33,700	$	121,081	$	74,865
Basic weighted-average shares outstanding		62,985,517		40,829,399		58,765,381		40,814,135
Incremental shares due to:
Performance shares		269,998		378,149		262,648		331,082
Restricted stock units		37,535		42,909		32,736		37,578
Stock portion of earnings and profits distribution		1,428,607		—		481,435		—
Diluted weighted-average shares outstanding		64,721,657		41,250,457		59,542,200		41,182,795
Basic net income per share	$	0.96	$	0.83	$	2.06	$	1.83
Diluted net income per share	$	0.93	$	0.82	$	2.03	$	1.82

In February 2018 we issued 22.0 million shares in connection with the Deltic merger. Further, on August 30, 2018, the board of directors approved a special distribution of $222.0 million to be paid on November 15, 2018 in connection with the acquisition in order to maintain the company’s qualification as a REIT. Using a volume weighted average price of our common stock for final three trading days in September, we estimated 4.2 million shares would be required to settle the 80% stock portion of the $222.0 million special distribution accrual at September 30, 2018. The weighted average shares for the dilutive effect on earnings per share from the stock portion of the special distribution was based on the August 30, 2018 declaration date. See Note 3: Merger with Deltic for further discussion on the merger.

For the three and nine months ended September 30, 2018, there were 15,966 and 38,320 stock-based awards that were excluded from the calculation of diluted earnings per share because they were anti-dilutive. Anti-dilutive stock-based awards could be dilutive in future periods. For the three and nine months ended September 30, 2017, there were 0 and 167 stock-based awards that were excluded from the calculation of diluted earnings per share because they were anti-dilutive.

NOTE 5. REVENUE RECOGNITION

The majority of our revenues are derived from the sale of delivered logs, manufactured wood products, residual wood product by-products and real estate. We recognize revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers.

Performance Obligations

A performance obligation, as defined in ASC 606, is a promise in a contract to transfer a distinct good or service to a customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue at the point in time, or over the period, in which the performance obligation is satisfied.

Performance obligations associated with delivered log and residual sales are typically satisfied when the logs and residuals are delivered to our customers’ mills. Performance obligations associated with the sale of wood products are typically satisfied when the products are shipped (FOB shipping point) or upon delivery to our customer (FOB destination) depending on the terms of the customer contract. Shipping and handling costs for all wood product and residual sales are accounted for as cost of goods sold.

ASC Topic 606 requires entities to consider significant financing components of contracts with customers, but allows for the use of a practical expedient when the period between satisfaction of a performance obligation and payment receipt is one year or less. Given the nature of our revenue transactions, we have elected to utilize this practical expedient.

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Substantially all of our performance obligations are satisfied as of a point in time. We have also elected to use the practical expedient to not disclose unsatisfied or partially satisfied performance obligations as all unsatisfied contracts are expected to be satisfied in less than one year.

Performance obligations associated with real estate sales are generally satisfied at a point in time when all conditions of closing have been met.

Contract Estimates

The transaction price for log and residual sales is determined using contractual rates applied to delivered volumes. The contractual rates are generally based on prevailing market prices and payment is generally due from customers within one month or less of delivery. For log and residual sales subject to long-term supply agreements, the transaction price is variable but is known at the time of delivery. For wood products sales, the transaction price is generally the amount billed to the customer based on the prevailing market price for the products shipped but may be reduced slightly for estimated cash discounts.

There are no significant contract estimates related to the real estate business.

Contract Balances

In general, a customer receivable is recorded as we ship and/or deliver wood products, logs and residuals. We generally receive payment shortly after products have been received by our customers. As of September 30, 2018 and December 31, 2017 we recorded $4.7 million and $1.7 million, respectively, for contract liabilities related to hunting lease rights. These contract liabilities are being amortized over the term of the contracts, which is typically less than twelve months. Other contract asset and liability balances, such as prepayments, are immaterial. For real estate sales, we typically receive the entire consideration in cash at closing.

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Major Products

The following table represents our revenues by major product. For additional information regarding our segments, see Note 16: Segment Information.

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Resource
Northern region
Sawlogs	$	69,658		$	68,699		$	168,869		$	139,043
Pulpwood		1,575			1,272			4,654			4,718
Stumpage		39			11			175			153
Other		765			292			1,233			798
		72,037			70,274			174,931			144,712
Southern region
Sawlogs		21,974			13,314			61,194			29,547
Pulpwood		13,700			9,938			36,138			24,892
Stumpage		653			191			2,106			420
Other		3,057			988			6,069			2,826
		39,384			24,431			105,507			57,685
Total Resource revenues		111,421			94,705			280,438			202,397
Wood Products
Lumber		138,281			84,233			367,062			230,807
Panels		36,655			17,945			106,785			54,923
Residuals		24,089			14,309			58,578			40,878
Total Wood Products revenues		199,025			116,487			532,425			326,608
Real Estate
Rural real estate		8,238			3,282			29,740			25,922
Development real estate		1,287			—			4,249			—
Other		1,708			—			4,230			—
Total Real Estate revenues		11,233			3,282			38,219			25,922
Total segment revenues		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Total consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

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NOTE 6. CERTAIN BALANCE SHEET COMPONENTS

INVENTORIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Logs	$	22,096	$	20,133
Lumber, panels and veneer		38,067		20,889
Materials and supplies		13,701		9,110
Total inventories	$	73,864	$	50,132

OTHER CURRENT ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Rural real estate held for sale	$	9,045	$	7,721
Taxes receivable		3,865		—
Prepaid expenses		3,965		2,862
Other receivables		2,113		882
Interest rate swaps		—		13
Total other current assets	$	18,988	$	11,478

PROPERTY, PLANT AND EQUIPMENT

(Dollars in thousands)	September 30, 2018			December 31, 2017
Property, plant and equipment	$	538,251		$	259,437
Less: accumulated depreciation		(198,105	)		(182,208	)
Total property, plant and equipment, net	$	340,146		$	77,229

TIMBER AND TIMBERLANDS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Timber and timberlands	$	1,605,564	$	581,648
Logging roads		78,485		72,828
Total timber and timberlands, net	$	1,684,049	$	654,476

OTHER LONG-TERM ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Mineral rights	$	5,882	$	—
Credit facility issuance costs		2,551		1,097
Interest rate swaps		3,392		1,156
Restricted cash		3,708		—
Investment in company owned life insurance (COLI)		2,741		1,996
Deferred real estate development costs		2,487		2,565
Other		2,935		1,457
Total other long-term assets	$	23,696	$	8,271

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Accrued payroll and benefits	$	19,980	$	18,110
Accounts payable		18,114		9,361
Accrued interest		10,078		6,385
Accrued taxes		9,868		5,103
Avery Landing accrual (see Note 15: Commitments and Contingencies)		—		6,000
Other current liabilities		22,218		10,242
Total accounts payable and accrued liabilities	$	80,258	$	55,201

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NOTE 7. DEBT

MEDIUM-TERM NOTES

We repaid $14.3 million of our medium-term notes during the nine months ended September 30, 2018. The remaining $3.0 million medium-term notes have a fixed interest rate of 8.75% and mature in 2022.

REVENUE BONDS

We assumed the obligations relating to the Letter of Credit supporting Deltic’s $29.0 million Union County, Arkansas Taxable Industrial Revenue Bonds 1998 Series due October 1, 2027. Neither the State of Arkansas nor Union County, Arkansas has any liability under the bonds. Contemporaneously with the issuance of the bonds, Deltic’s subsidiary (Del-Tin) and Union County entered into a lease agreement that obligated Del-Tin to make lease payments in an amount necessary to fund the debt service on the bonds. Under the terms of the lease agreement, a standby letter of credit to benefit the holders of the bonds is required. The irrevocable standby letter of credit was amended and re-issued on February 20, 2018, in the amount of $29.7 million, expiring April 13, 2023. These bonds bear interest at a variable rate determined weekly by the remarketing agent. Interest is payable monthly.  

TERM LOANS

On March 22, 2018, we entered into a Second Amended and Restated Term Loan Agreement, which amended the existing term loan agreement dated December 14, 2014. The agreement includes an additional $100 million of new loans used to refinance Deltic’s $106 million credit facility and a $100 million loan assumed in connection with the Deltic merger. The interest coverage ratio and leverage ratio financial covenants are unchanged (at least 3.00 to 1.00 and no more than 40%, respectively). The limitation on timberland acre sales was eliminated. As of September 30, 2018, we were in compliance with all covenants under our debt agreements.

The $100 million repayment of Deltic’s credit facility funded by a $100 million borrowing under our revolving credit facility was subsequently refinanced with two tranches of term loans aggregating $100 million under the Second Amended and Restated Term Loan Agreement.

The following summarizes the three term loan tranches added in the first quarter of 2018:

• one $100 million tranche maturing 2025 with a fixed rate of 4.05% assumed in connection with the merger;

• one $65 million tranche maturing 2028 at a variable rate based on one-month LIBOR plus 1.95%; and

• one $35 million tranche maturing 2028 at a variable rate based on one-month LIBOR plus 1.95%.

The $65 million and $35 million tranches added in the first quarter of 2018 were hedged to yield a fixed-rate of 4.80%. There were no additional term loan tranches added in the third quarter of 2018. See Note 8: Derivative Instruments.

CREDIT AGREEMENT

On February 14, 2018, we entered into a Second Amended and Restated Credit Agreement with an expiration date of April 13, 2023. The amended agreement increases our revolving line of credit to $380 million, which may be increased by up to an additional $420 million. It also includes a sublimit of $75 million for the issuance of standby letters of credit and a sublimit of $25 million for swing line loans. Usage under either or both subfacilities reduces availability under the revolving line of credit.

Pricing is set according to the type of borrowing. LIBOR Loans are issued at a rate equal to the LIBOR Rate, while Base Rate Loans are issued at a rate equal to the Base Rate, which is a fluctuating rate per annum equal to the highest of (a) the Federal Funds Rate plus 1/2 of 1.00%, (b) the rate of interest in effect for such day as publicly announced from time to time by KeyBank as its prime rate and (c) the sum of the LIBOR that would apply to a one month Interest Period plus 1.00%. The interest rates we pay for borrowings under either type of loan include an additional Applicable Rate, which can range from 0.875% to 1.70% for LIBOR loans and from 0% to 0.70% for Base Rate loans, depending on our current credit rating. As of September 30, 2018, we were able to borrow under the bank credit facility with the additional applicable rate of 1.30% for LIBOR Loans and 0.30% for Base Rate Loans, with facility fees of 0.20% on the $380 million of the bank credit facility.

The interest coverage ratio and leverage ratio financial covenants are unchanged (at least 3.00 to 1.00 and no more than 40%, respectively). The limitation on timberland acre sales was eliminated. As of September 30, 2018, we were in compliance with all covenants under our credit agreements.

As of September 30, 2018, there were no borrowings under the revolving line of credit and approximately $1.0 million of the $380 million credit facility is utilized by outstanding letters of credit.

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NOTE 8. DERIVATIVE INSTRUMENTS

From time to time, we enter into derivative financial instruments to manage certain cash flow and fair value risks. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset or liability to a particular risk, such as interest rate risk, are considered fair value hedges. We had three fair value interest rate swaps with notional amounts totaling $14.3 million, which matured during the first quarter of 2018. A $50 million notional fair value swap associated with our senior notes was terminated in December 2017 at a cost of $0.4 million. The termination cost has been recorded as a reduction to the carrying value of our long-term debt and will be amortized to earnings through the original maturity date of November 2019. Approximately $0.2 million will be recorded as interest expense over the next twelve months.

Derivatives designated and qualifying as a hedge of the exposure to variability in the cash flows of a specific asset or liability that is attributable to a particular risk, such as interest rate risk, are considered cash flow hedges. We have four interest rate swaps to convert variable-rate debt, comprised of 1-month and 3-month LIBOR plus a spread, to fixed-rate debt. Our cash flow hedges are expected to be highly effective in achieving offsetting cash flows attributable to the hedged interest rate risk through the term of the swaps. Therefore, changes in fair value are recorded as a component of other comprehensive income and will be recognized in earnings when the hedged interest rates affect earnings. The amounts paid or received on the swaps will be recognized as adjustments to interest expense. As of September 30, 2018, the amount of net losses expected to be reclassified into earnings in the next 12 months is $0.1 million.

The following table presents the gross fair values of derivative instruments on our Condensed Consolidated Balance Sheets:

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Location	September 30, 2018		December 31, 2017		Location	September 30, 2018		December 31, 2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts	Other assets, current	$	—	$	13		$	—	$	—
Derivatives designated in cash flow hedging relationships:
Interest rate contracts	Other assets, non-current	$	3,392	$	1,156		$	—	$	—

The following table details the effect of derivatives on our Consolidated Statements of Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	Location	2018			2017			2018			2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts
Realized gain (loss) on interest rate contracts1	Interest expense	$	(52	)	$	76		$	(138	)	$	366
Derivatives designated in cash flow hedging relationships:
Interest rate contracts
Gain (loss) recognized in other comprehensive income, net of tax		$	1,330		$	(30	)	$	1,394		$	(258	)
Loss reclassified from accumulated other comprehensive income1	Interest expense	$	(261	)	$	(30	)	$	(456	)	$	(121	)
Derivatives not designated as hedging instruments:
Lumber price contracts
Realized gain on lumber price swap		$	—		$	986		$	—		$	986
Unrealized gain (loss) on lumber price swap	Gain (loss) on lumber price swap	$	—		$	(3,067	)	$	—		$	199
Net gain (loss) on lumber price contracts		$	—		$	(2,081	)	$	—		$	1,185
Interest expense, net		$	10,109		$	7,336		$	25,125		$	19,654

¹ Realized gain (loss) on hedging instruments consist of net cash settlements and interest accruals on interest rate swaps during the periods. Net cash settlements are included in the supplemental cash flow information within interest, net of amounts capitalized in the Condensed Consolidated Statements of Cash Flows.

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NOTE 9. FINANCIAL INSTRUMENTS

The following table presents the estimated fair values of our financial instruments:

	September 30, 2018						December 31, 2017
(Dollars in thousands)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Cash, cash equivalents and restricted cash (Level 1)	$	141,243		$	141,243		$	120,457		$	120,457
Derivative assets related to interest rate swaps (Level 2)	$	3,392		$	3,392		$	1,169		$	1,169
Long-term debt, including current portion (Level 2):
Term loans	$	(539,007	)	$	(536,158	)	$	(343,500	)	$	(345,222	)
Senior notes		(149,721	)		(156,375	)		(149,528	)		(161,063	)
Revenue bonds		(94,735	)		(93,539	)		(65,735	)		(63,967	)
Medium-term notes		(3,000	)		(3,456	)		(17,250	)		(18,227	)
Total long-term debt1	$	(786,463	)	$	(789,528	)	$	(576,013	)	$	(588,479	)
Company owned life insurance asset (COLI) (Level 3)	$	2,741		$	2,741		$	1,996		$	1,996

¹ The carrying amount of long-term debt includes principal and unamortized discounts.

For cash, cash equivalents, restricted cash and any revolving line of credit borrowings, the carrying amount approximates fair value due to the short-term nature of these financial instruments.

The fair value of interest rate swaps are determined using discounted cash flow analysis on the expected cash flows of each derivative. The analysis reflects the contractual terms of the derivatives, including the period to maturity and uses observable market-based inputs, including interest rate forward curves.

The fair value of our long-term debt is estimated based upon quoted market prices for similar debt issues or estimated based on average market prices for comparable debt when there is no quoted market price.

The contract value of our company owned life insurance is based on the amount at which it could be redeemed and, accordingly, approximates fair value.

NOTE 10. PENSION AND OTHER POSTRETIREMENT EMPLOYEE BENEFITS

The following tables detail the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefits (OPEB):

	Three Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	2,181		$	1,688		$	99		$	3
Interest cost		4,344			4,024			391			316
Expected return on plan assets		(5,095	)		(4,601	)		—			—
Amortization of prior service cost (credit)		46			72			(2,219	)		(2,219	)
Amortization of actuarial loss		4,148			3,621			327			384
Net periodic cost (benefit)	$	5,624		$	4,804		$	(1,402	)	$	(1,516	)
	Nine Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	6,272		$	5,065		$	242		$	10
Interest cost		12,648			12,072			1,091			947
Expected return on plan assets		(14,938	)		(13,805	)		—			—
Amortization of prior service cost (credit)		139			216			(6,658	)		(6,658	)
Amortization of actuarial loss		12,442			10,863			983			1,153
Net periodic cost (benefit)	$	16,563		$	14,411		$	(4,342	)	$	(4,548	)

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The following tables detail the pension and OPEB changes in accumulated other comprehensive loss on our Condensed Consolidated Balance Sheets, net of tax:

	Three Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2018	$	118,191		$	(2,627	)	$	115,564
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(34	)		1,642			1,608
Actuarial loss		(3,069	)		(242	)		(3,311	)
Total reclassification for the period		(3,103	)		1,400			(1,703	)
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Three Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2017	$	116,121		$	(6,943	)	$	109,178
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(44	)		1,353			1,309
Actuarial loss		(2,209	)		(234	)		(2,443	)
Total reclassification for the period		(2,253	)		1,119			(1,134	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

	Nine Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2017	$	100,611		$	(5,055	)	$	95,556
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(103	)		4,927			4,824
Actuarial loss		(9,207	)		(727	)		(9,934	)
Total reclassification for the period		(9,310	)		4,200			(5,110	)
Amortization reclassified from AOCL2		23,787			(372	)		23,415
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Nine Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2016	$	120,627		$	(9,182	)	$	111,445
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(132	)		4,061			3,929
Actuarial loss		(6,627	)		(703	)		(7,330	)
Total reclassification for the period		(6,759	)		3,358			(3,401	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

¹Amortization of prior service credit (cost) and amortization of actuarial loss are included in the computation of net periodic cost (benefit).

² See Note 2: Recent Accounting Pronouncements discussing the $23.3 million reclassification from AOCL to accumulated deficit.

FUNDED STATUS OF ACQUIRED PENSION PLAN ASSETS AND ASSUMED BENEFIT OBLIGATIONS

Consistent with accounting for the merger as the acquirer in a business combination, pension assets acquired and benefit obligations assumed were remeasured to reflect their funded status as of the date of the acquisition of Deltic. See Note 3: Merger with Deltic. This included updating asset values and updating discount rates to reflect market conditions as of the date of the merger. The funded status of plan assets and the benefit obligations as of February 20, 2018 were as follows:

• $38.7 million qualified pension plan assets

• $62.0 million qualified and non-qualified pension plan projected benefit obligation

• $13.5 million OPEB accumulated benefit obligation

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FUNDING AND BENEFIT PAYMENTS

During the nine months ended September 30, 2018 and 2017, we paid non-qualified supplemental pension benefits of $1.3 million and $1.2 million, and OPEB benefits of $2.6 million and $2.6 million, respectively. During the nine months ended September 30, 2018 we made qualified pension benefit contributions of $52.1 million, of which $44.0 million were voluntary contributions. The $52.1 million contributions were designated for and included as deductions on our 2017 income tax return which allowed us to deduct those amounts at a higher rate. During the nine months ended September 30, 2017 we made qualified pension benefit contributions of $5.3 million.

NOTE 11. COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table details the changes in our accumulated other comprehensive loss (AOCL) on our Condensed Consolidated Balance Sheets for the nine months ended September 30, 2018, net of tax.

(Dollars in thousands)	Gains and losses on cash flow hedge			Pension Plans			OPEB			Total
Balance at December 31, 2017	$	(705	)	$	100,611		$	(5,055	)	$	94,851
Amounts arising during the period		(1,394	)		(9,310	)		4,200			(6,504	)
Amounts reclassified from AOCL to interest expense		(456	)		—			—			(456	)
Amounts reclassified from AOCL to accumulated deficit		(150	)		23,787			(372	)		23,265
Net change		(2,000	)		14,477			3,828			16,305
Balance at September 30, 2018	$	(2,705	)	$	115,088		$	(1,227	)	$	111,156

Amounts in parenthesis indicate credits.

Amounts reclassified from AOCL to accumulated deficit reflect the adoption of ASU No. 2018-2, Income Statement – Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. See Note 2: Recent Accounting Pronouncements. See also Note 8: Derivative Instruments and Note 10: Pension and Other Postretirement Employee Benefits for additional information regarding amounts arising during the period.

NOTE 12. EQUITY-BASED COMPENSATION

As of September 30, 2018, we had three shareholder approved stock incentive plans under which performance shares, restricted stock units (RSUs) and deferred compensation stock equivalent units were outstanding. We were originally authorized to issue up to 1.6 million shares and 1.0 million shares under our 2005 Stock Incentive Plan and 2014 Stock Incentive Plan, respectively. At September 30, 2018, approximately 0.4 million shares were authorized for future use under those plans. Upon closing of the merger with Deltic, we assumed Deltic’s stockholder-approved 2002 Incentive Plan and reserved 0.25 million shares for issuance under the plan. We issue new shares of common stock to settle performance shares, restricted stock units and deferred compensation stock equivalent units.

The following table details equity-based compensation expense and the related income tax benefit:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2018		2017		2018		2017
Employee equity-based compensation expense:
Performance shares	$	1,074	$	905	$	3,084	$	2,678
Restricted stock units		536		283		1,470		858
Accelerated share-based termination benefits in connection with the merger		3		—		1,767		—
Total employee equity-based compensation expense	$	1,613	$	1,188	$	6,321	$	3,536
Deferred compensation stock equivalent units expense	$	16	$	166	$	197	$	488
Total tax benefit recognized for share-based expense	$	74	$	95	$	258	$	284

Employee equity-based compensation expense includes restricted stock unit awards issued to directors.

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PERFORMANCE SHARES

The following table presents the key inputs used in the Monte Carlo simulation to calculate the fair value of the performance share awards in 2018 and 2017:

	Nine Months Ended September 30,
	2018			2017
Stock price as of valuation date	$	54.00		$	43.60
Risk-free rate		2.46	%		1.61	%
Expected volatility		23.74	%		24.22	%
Expected dividends		2.96	%		3.44	%
Expected term (years)		3.00			3.00
Fair value	$	75.37		$	53.85

The following table summarizes outstanding performance share awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		200,631		$	39.19
Granted		67,747		$	75.37
Forfeited		(5,082	)	$	47.90
Unvested shares outstanding at September 30, 2018		263,296		$	48.33	$	10,782

As of September 30, 2018, there was $5.8 million of unrecognized compensation cost related to unvested performance share awards, which is expected to be recognized over a weighted-average period of 1.0 years.

RESTRICTED STOCK UNITS

The following table summarizes outstanding RSU awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		67,871		$	32.87
Granted		43,693		$	51.54
Vested		(1,000	)	$	42.92
Forfeited		(3,694	)	$	45.36
Unvested shares outstanding at September 30, 2018		106,870		$	39.98	$	4,376

The fair value of each RSU equaled our common share price on the date of grant. As of September 30, 2018, there was $2.0 million of total unrecognized compensation cost related to unvested RSU awards, which is expected to be recognized over a weighted-average period of 1.0 years.

DEFERRED COMPENSATION STOCK EQUIVALENT UNITS

Through December 31, 2017, a long-term incentive award was granted annually to our directors and payable upon a director's separation from service. Effective May 2018, directors received restricted stock unit awards that may be deferred. Directors may also elect to defer their quarterly retainers, which may be payable in the form of stock. All stock unit equivalent accounts are credited with dividend equivalents. As of September 30, 2018, there were 146,502 shares outstanding that will be distributed in the future to directors as common stock.  

Issuance of restricted stock units awarded to certain officers and select employees may also be deferred. All stock unit equivalent accounts are credited with dividend equivalents. As of September 30, 2018, there were 74,989 RSUs which had vested, but issuance of the related stock had been deferred.

REPLACEMENT RESTRICTED STOCK UNIT AWARDS

The replacement RSUs issued as a result of the merger with Deltic have four-year vesting terms. During the vesting period, the grantee may vote and receive dividends on the shares, but the shares are subject to transfer restrictions and are all, or partially, forfeited if a grantee terminates employment. Expense for replacement RSUs will continue to be recognized over the remaining service period unless a qualifying termination occurs. A qualifying termination of an

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awardee will result in acceleration of vesting and expense recognition in the period that the qualifying termination occurs. Qualifying terminations during the nine months ended September 30, 2018 resulted in accelerated vesting of approximately 35,000replacement RSUs and recognitionof $1.8 million of expense. This accelerated expense recognition is included in merger-related integration costs as described inNote 13: Merger, Integration and other Costs.

NOTE 13. MERGER, INTEGRATION AND OTHER COSTS

In connection with the merger with Deltic, we incurred costs such as advisory, legal, accounting, valuation and other professional or consulting fees. Restructuring costs relate to termination benefits and integration costs to combine business processes and locations.

(Dollars in thousands)	For the Three Months Ended September 30, 2018		For the Nine Months Ended September 30, 2018
Merger costs	$	892	$	11,515
Restructuring costs:
Termination benefits		—		8,782
Professional services		23		678
Other		57		270
		80		9,730
Total merger and restructuring costs	$	972	$	21,245

.

During the nine months ended September 30, 2018, we incurred termination benefits, which included accelerated share-based payment costs, for qualifying terminations. Employee termination benefits considered postemployment benefits are accrued when the obligation is probable and estimable, such as benefits stipulated by human resource policies. If the employee must provide future service greater than 60 days, such benefits are expensed ratably over the future service period. Accrued termination benefits are recorded in accrued payroll and benefits within accounts payable and accrued liabilities as detailed in Note 6: Certain Balance Sheet Components. Accrued termination benefits at September 30, 2018 are expected to be paid within one year.

Changes in accrued severance related to restructuring were as follows:

(Dollars in thousands)
Accrued severance as of December 31, 2017	$	—
Charges		8,782
Payments		(8,375	)
Accrued severance as of September 30, 2018	$	407

NOTE 14. INCOME TAXES

As a real estate investment trust (REIT), we generally are not subject to federal and state corporate income taxes on income of the REIT that we distribute to our shareholders. We conduct certain activities through our taxable REIT subsidiaries (TRS), which are subject to corporate level federal and state income taxes. These taxable activities are principally comprised of our wood products manufacturing operations and certain real estate investments. Therefore, income tax expense or benefit is primarily due to income or loss of the TRS, as well as permanent book versus tax differences.

Deltic’s REIT qualifying activities were also not subject to federal and state corporate income taxes commencing on the date of the merger. Deltic’s wood products manufacturing operations and real estate activities, which are conducted through TRS subsidiaries, are subject to corporate level federal and state income taxes.

On December 22, 2017, H.R. 1, commonly known as the Tax Cuts and Jobs Act (the Tax Act), was enacted. The Tax Act contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction in our TRS’s effective tax, resulting in $3.9 million and $10.4 million in lower taxes during the three and nine months ended September 30, 2018, respectively.

In addition, during third quarter of 2018 we recorded a tax benefit of $5.3 million primarily related to deducting contributions to our qualified pension plans on our 2017 federal tax returns at the higher 2017 income tax rate. See Note:10 Pension and Other Postretirement Employee Benefits.

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NOTE 15. COMMITMENTS AND CONTINGENCIES

In January 2007, the Environmental Protection Agency (EPA) notified us that we were a potentially responsible party under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) and the Clean Water Act for cleanup of a site known as Avery Landing in northern Idaho. We owned a portion of the land at the Avery Landing site, which we acquired in 1980 from the Milwaukee Railroad. The land we owned at the site and adjacent properties were contaminated with petroleum as a result of the Milwaukee Railroad's operations at the site prior to 1980. Our remediation was completed in October 2013. In 2016, the EPA confirmed that Potlatch had completed the cleanup and subsequent monitoring required by the unilateral order. On September 25, 2015, the EPA sent us a letter asserting that the EPA and the Department of Transportation (the current owner of a portion of the adjacent property remediated by the EPA) (DOT) had incurred $9.8 million in unreimbursed response costs associated with the site and that we were liable for such costs. We executed six tolling agreements with the EPA and DOT suspending the statute of limitations on the claim until March 31, 2018 in order to facilitate negotiations of a final settlement. On December 22, 2017, we sold the land at Avery Landing. On April 10, 2018, the United States District Court for the District of Idaho entered a Consent Decree negotiated by the parties releasing us and our affiliates from any further liability for past response costs incurred by the United States Government in exchange for a final settlement payment of $6 million, which was paid in April 2018.

At any given time we are subject to claims and actions incidental to the operations of our business. Based on information currently available, we do not expect that any sums we may receive or have to pay in connection with any legal proceeding would have a materially adverse effect on our consolidated financial position or net cash flow.

NOTE 16. SEGMENT INFORMATION

Our businesses are organized into three reportable operating segments: Resource, Wood Products and Real Estate. Management activities in the Resource segment include planting and harvesting trees and building and maintaining roads. The Resource segment also generates revenues from non-timber resources such as hunting leases, recreation permits and leases, mineral rights leases, oil and gas royalties, biomass production and carbon sequestration. The Wood Products segment manufactures and markets lumber, plywood and MDF. The business of our Real Estate segment includes the sale of land holdings deemed non-strategic or identified as having higher and better use alternatives. The Real Estate segment also engages in master planned communities and development activities.

Effective February 20, 2018, we changed our operating segment disclosures in order to reflect the new measure of operating profit that management uses to allocate resources and assess performance. Management adopted the new measure due to the merger with Deltic. The significant increase in the company’s post-merger assets and the related fair value purchase accounting adjustments to acquired Deltic assets created a lack of comparability associated with the historical performance measures. This change has been reflected in the segment information for the three and nine months ended September 30, 2018. The segment information presented for comparative purposes for the three and nine months ended September 30, 2017 has also been revised to reflect this change.

The reporting segments follow the same accounting policies used for our Condensed Consolidated Financial Statements, with the exception of the valuation of inventories. All segment inventories are reported using the average cost method and the LIFO reserve is recorded at the corporate level.

Management primarily evaluates the performance of its segments and allocates resources to them based upon Adjusted EBITDDA. EBITDDA is calculated as net income (loss) before interest expense, income taxes, basis of real estate sold, depreciation, depletion and amortization. Adjusted EBITDDA excludes certain specific items that are considered to hinder comparison of the performance of our businesses either year-on-year or with other businesses. Although Adjusted EBITDDA is not a measure of financial condition or performance determined in accordance with GAAP, the company uses Adjusted EBITDDA to compare the operating performance of its segments on a consistent basis and to evaluate the performance and effectiveness of its operational strategies. The company’s calculation of Adjusted EBITDDA may not be comparable to that reported by other companies.

The following table summarizes information on revenues, Adjusted EBITDDA, depreciation, depletion and amortization and basis of real estate sold for each of the company’s reportable segments and includes a reconciliation of total Adjusted EBITDDA to income before income taxes:

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	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Revenues:
Resource	$	111,421		$	94,705		$	280,438		$	202,397
Wood Products		199,025			116,487			532,425			326,608
Real Estate		11,233			3,282			38,219			25,922
		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351
Adjusted EBITDDA:
Resource	$	58,680		$	48,034		$	140,068		$	91,200
Wood Products		46,446			24,395			126,962			58,660
Real Estate		7,467			2,094			27,769			22,333
Corporate		(8,989	)		(9,108	)		(28,969	)		(25,809	)
Eliminations and adjustments		(1,794	)		(3,180	)		(5,080	)		(1,152	)
Total Adjusted EBITDDA		101,810			62,235			260,750			145,232
Basis of real estate sold		(4,248	)		(579	)		(10,673	)		(6,351	)
Depreciation, depletion and amortization		(18,836	)		(8,196	)		(51,982	)		(20,796	)
Interest expense, net		(10,109	)		(7,336	)		(25,125	)		(19,654	)
Non-operating pension and other postretirement employee benefits		(1,942	)		(1,596	)		(5,707	)		(4,788	)
Gain (loss) on fixed assets		(12	)		—			(11	)		(16	)
Lumber price swap2		—			(3,066	)		—			199
Inventory purchase price adjustment in cost of goods sold3		—			—			(1,849	)		—
Environmental charges for Avery Landing		—			(4,978	)		—			(4,978	)
Deltic merger-related costs4		(972	)		(27	)		(21,245	)		(27	)
Income before income taxes	$	65,691		$	36,457		$	144,158		$	88,821
Depreciation, depletion and amortization:
Resource	$	12,730		$	6,207		$	35,974		$	14,865
Wood Products		5,827			1,821			15,250			5,487
Real Estate		81			—			198			1
Corporate		198			168			560			443
		18,836			8,196			51,982			20,796
Bond discounts and deferred loan fees5		609			369			1,703			1,112
Total depreciation, depletion and amortization	$	19,445		$	8,565		$	53,685		$	21,908
Basis of real estate sold:
Real Estate	$	4,267		$	618		$	10,886		$	6,474
Eliminations and adjustments		(19	)		(39	)		(213	)		(123	)
Total basis of real estate sold	$	4,248		$	579		$	10,673		$	6,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

² Includes change in unrealized (gain) loss and $1 million in cash settlements.

³ The effect on cost of goods sold for fair value adjustments to the carrying amounts of inventory acquired in business combinations.

⁴ For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

⁵ Bond discounts and deferred loan fees are reported within interest expense, net on the Condensed Consolidated Statement of Income.

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A reconciliation of our business segment total assets to total assets in the CondensedConsolidatedBalance Sheet is as follows:

(Dollars in thousands)	September 30, 2018		December 31, 2017
Total assets:
Resource1	$	1,719,703	$	670,240
Wood Products		468,622		154,479
Real Estate2		89,190		—
		2,277,515		824,719
Corporate		135,556		128,360
Total consolidated assets	$	2,413,071	$	953,079

¹        We do not report rural real estate separate from Resource as we do not report these assets separately to management.

²          Real Estate assets primarily consist of real estate development acquired with the Deltic merger.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Information

This report contains, in addition to historical information, certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including without limitation, expected $50 million in annual synergies and operational improvements by 2019, fair value of hedging instruments and swaps, expected return on pension assets, recognition of compensation costs relating to our performance shares and RSUs, the distribution of Deltic’s earnings and profits prior to December 31, 2018, required contributions to pension plans, expected amortization of unrecognized compensation cost of performance share awards and RSUs, payment of accrued termination benefits within one year, the U.S. housing market, the lumber and log markets, expected decrease in SG&A expense when Deltic’s integration is complete, sufficiency of cash to meet operating requirements, and similar matters. Words such as “anticipate,” “expect,” “will,” “intend,” “plan,” “target,” “project,” “believe,” “seek,” “schedule,” “estimate,” “could,” “can,” “may” and similar expressions are intended to identify such forward-looking statements. These forward-looking statements reflect our current views regarding future events based on estimates and assumptions and are therefore subject to known and unknown risks and uncertainties and are not guarantees of future performance. Our actual results of operations could differ materially from our historical results or those expressed or implied by forward-looking statements contained in this report. Important factors that could cause or contribute to such differences include, but are not limited to, the following: 

• changes in the United States and international economies;

• changes in interest rates and discount rates;

• changes in the level of residential and commercial construction and remodeling activity;

• changes in tariffs, quotas and trade agreements involving wood products;

• changes in demand for our products;

• changes in production and production capacity in the forest products industry;

• competitive pricing pressures for our products;

• unanticipated manufacturing disruptions;

• weather;

• transportation disruptions; and

• our ability to successfully realize the expected benefits from the merger with Deltic.

For a discussion of some of the factors that may affect our business, results and prospects and a nonexclusive listing of forward-looking statements, refer to Cautionary Statement Regarding Forward-Looking Information on page 1 and Risk Factors in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2017.

Forward-looking statements contained in this report present our views only as of the date of this report. Except as required under applicable law, we do not intend to issue updates concerning any future revisions of our views to reflect events or circumstances occurring after the date of this report.

Non-GAAP Measures

To supplement our financial statements presented in accordance with generally accepted accounting principles in the United States (GAAP), we use certain non-GAAP measures on a consolidated basis, including Cash Available for Distribution, (CAD) and Adjusted EBITDDA, which are defined and further explained in Liquidity and Performance Measures below. A reconciliation of such measures to the nearest GAAP measures can also be found in Liquidity and Performance Measures below. Refer to Note 16: Segment Information of the condensed consolidated financial statements for information related to the use of segment Adjusted EBITDDA and a reconciliation of such measures as required by GAAP. Our definitions of these non-GAAP measures may differ from similarly titled measures used by others. These non-GAAP measures should be considered supplemental to and not a substitute for, financial information prepared in accordance with GAAP.

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Our Company

We are a leading timberland real estate investment trust (REIT) with operations in seven states where we own nearly two million acres of timberland, six sawmills, an industrial grade plywood mill, a medium density fiberboard plant and real estate development projects. Our business is organized into three business segments: Resource, Wood Products and Real Estate. Our Resource segment supplies our Wood Products segment with a portion of its wood fiber needs. These intersegment revenues are based on prevailing market prices and typically represent a significant portion of the Resource segment’s total revenues. Our other segments generally do not generate intersegment revenues.

In our discussions of consolidated results of operations, our revenues are reported after elimination of intersegment revenues. In our discussion by business segment, each segment's revenues are presented before the elimination of intersegment revenues.

The operating results of our Resource, Wood Products and Real Estate business segments have been and will continue to be influenced by a variety of factors, including cyclical fluctuations in the forest products industry, changes in timber prices and in harvest levels from our timberlands, weather conditions, competition, timberland valuations, demand for our non-strategic timberland for higher and better use purposes, changes in lumber and panel prices, the efficiency and level of capacity utilization of our wood products manufacturing operations, changes in our principal expenses such as log costs, asset or business acquisitions or dispositions and other factors.

Merger with Deltic

On October 22, 2017, Potlatch, Portland Merger, LLC, a wholly owned subsidiary of Potlatch and Deltic Timber Corporation (Deltic) entered into an Agreement and Plan of Merger (Merger Agreement). At the effective time on February 20, 2018, Deltic merged into Portland Merger, LLC, with Portland Merger, LLC continuing as the surviving entity. Following the merger, Potlatch Corporation was renamed PotlatchDeltic Corporation (PotlatchDeltic). See Note 3: Merger with Delticfor additional details surrounding the merger.

Synergies

PotlatchDeltic has identified a target of $50 million in annual CAD synergies arising from the merger with Deltic. The $50 million annual synergy run rate was achieved by the end of the third quarter 2018. Synergies are being tracked in four categories: 1) increased sustainable harvest; 2) expanded lumber production; 3) REIT tax savings; and 4) lower selling, general and administrative expenses and other improvements. The following table summarizes the target savings:

(Dollars in millions)	Target Savings		Run Rate Savings to Date		Description
Sustainable harvest	$	10	$	11	Increased harvest to sustainable levels in line with industry standards
Expanded lumber production		18		16	Lumber production gains from capital investments in additional drying capacity, increased operating hours and additional improvements
REIT tax savings		7		7	Qualified Deltic assets taxed as a REIT
SG&A and other		15		17	Personnel reductions, system and process integration along with a number of small operational improvements
	$	50	$	51

Business and Economic Trends

The demand for timber is directly affected by the underlying demand for lumber and other wood-products, as well as by the demand for pulp, paper and packaging. Our Resource and Wood Products segments are impacted by demand for new homes in the United States housing market and by repair and remodeling activity.

During the third quarter of 2018, new home demand and repair and remodeling activity continued to reflect moderate improvement supported by low unemployment, wage growth, household formation and consumer confidence. The millennial generation has started to form households and have children, which combined with the favorable economic backdrop, should support an ongoing recovery in new single-family home construction.

Increased lumber demand coupled with transportation issues pushed lumber prices higher through the first half of 2018 and contributed to our strong results in Wood Products. After reaching an all-time record high in early June, lumber prices declined significantly through the end of the third quarter and into October. The price decline was due to increased shipments by Canadian lumber manufacturers as they work to clear the backlog caused by transportation issues, which

28

occurred during a seasonally slower period of demand that was exacerbated by torrential rain in Texas, the largest homebuilding market in the U.S. and two major hurricanes.

We index a significant portion of our Idaho sawlogs to the price of lumber under long-term supply agreements. The Northern region of the Resource segment experienced favorable log pricing as a result of the strength in lumber markets. The Southern region of the Resource segment has seen pine sawlog prices remain at relatively low levels as markets continue to have ample log availability to meet growing demand.

Consolidated Results

The following table sets forth changes in our Consolidated Statements of Income. Our Business Segment Results provide a more detailed discussion of our segments:

	Three Months Ended September 30,									Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			$ Change			2018			2017			$ Change
Revenues	$	289,199		$	190,441		$	98,758		$	757,329		$	503,351		$	253,978
Costs and expenses:
Cost of goods sold		195,584			124,727			70,857			515,645			348,581			167,064
Selling, general and administrative expenses		14,901			13,240			1,661			45,449			37,687			7,762
Deltic merger-related costs		972			27			945			21,245			27			21,218
Environmental charge for Avery Landing		—			4,978			(4,978	)		—			4,978			(4,978	)
Loss (gain) on lumber price swap		—			2,080			(2,080	)		—			(1,185	)		1,185
		211,457			145,052			66,405			582,339			390,088			192,251
Operating income		77,742			45,389			32,353			174,990			113,263			61,727
Interest expense, net		(10,109	)		(7,336	)		(2,773	)		(25,125	)		(19,654	)		(5,471	)
Non-operating pension and other postretirement benefit costs		(1,942	)		(1,596	)		(346	)		(5,707	)		(4,788	)		(919	)
Income before income taxes		65,691			36,457			29,234			144,158			88,821			55,337
Income tax provision		(5,355	)		(2,757	)		(2,598	)		(23,077	)		(13,956	)		(9,121	)
Net income	$	60,336		$	33,700		$	26,636		$	121,081		$	74,865		$	46,216
Adjusted EBITDDA1	$	101,810		$	62,235		$	39,575		$	260,750		$	145,232		$	115,518

¹ See Liquidity and Performance Measures for a reconciliation of Adjusted EBITDDA to net income, the closest comparable GAAP measure, for each of the periods presented.

Third Quarter 2018 Results Compared with Third Quarter 2017

Revenues

Revenues were $289.2 million, an increase of $98.8 million, or 51.9%, compared with the same period in 2017. Of this increase, $83.3 million was attributable to acquired Deltic operations. In addition, lumber pricing increased year over year for legacy Potlatch operations. These increases were offset by a decrease in harvest volumes in the North due to deferrals of harvesting efforts and in the South due to wet weather during the quarter impacting harvest efforts. In addition, we sold approximately 390 acres in Arkansas for $3.7 million to a local water utility for conservation, compared to no similar sales in the third quarter of 2017.

Cost of goods sold

Cost of goods sold increased $70.9 million, or 56.8%, compared with the same period in 2017, primarily due to the addition of the Deltic operations that were not present in the prior comparable period.

Depletion, depreciation and amortization increased primarily due to the following:

• Of the $6.2 million increase in depletion, $4.9 million was due to the addition of Deltic. Further, as we calculate depletion in a Southern depletion pool which includes both Potlatch and Deltic timberlands, depletion expense increased for harvesting activities on legacy Potlatch timberlands in the South as a result of higher depletion rates.

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• Depreciation increased $4.2 million primarily from the addition of Deltic’s two sawmills and the MDF plant.

• Basis of land sold increased $3.7 million primarily due to sales of Deltic land during the quarter, including the 390 acre sale to a local water utility described above.

Selling, general and administrative expenses

Selling, general and administrative (SG&A) expenses for third quarter 2018 were $14.9 million compared with $13.2 million during the same period in 2017. The increase includes $2.1 million of SG&A expenses attributable to acquired Deltic operations as well as a $0.4 million increase in professional fees predominantly associated with supporting the integration of Deltic that are expected to decline once the integration is complete. These costs are partly offset by decreases in the annual incentive plan accrual during the quarter to reflect year-to-date results.  

Deltic merger-related costs

Merger-related costs for the third quarter of 2018 were $1.0 million. This included $0.9 million in merger costs for various professional fees including legal fees, accounting and appraisal fees. Restructuring costs were $0.1 million, consisting primarily of costs associated with systems integration.

Avery Landing

During the third quarter of 2017, we accrued $5.0 million related to Avery Landing which was settled in April 2018. See Note 15: Commitments and Contingencies.

Lumber price swap

In April 2017, we entered into a lumber price swap to fix the price on a total of 36 million board feet (mmbf) of southern yellow pine with an effective date of July 1, 2017 and a termination date of December 31, 2017. Under the contract, beginning in July, cash settlement on 6 mmbf occurred each month. Changes in the fair value of the derivative was recorded directly into income as it was not designated as a hedging relationship. At June 30, 2017, the estimated fair value of the contract was $3.3 million, which was recognized as an unrealized gain in the Condensed Consolidated Statement of Income. During the three months ended September 30, 2017 we received cash settlements of approximately $1 million for the swap. At September 30, 2017, the estimated fair value on the remaining term of the contract was $0.2 million, resulting in a $2.1 million change that was reflected as a loss on the lumber price swap for the three months ended September 30, 2017. There were no similar swaps during the three months ended September 30, 2018.See Note 8: Derivative Instruments.

Interest expense, net

Interest expense was $10.1 million, compared with $7.3 million for the same period in 2017. The $2.8 million increase was primarily due to the $230 million in long-term debt assumed or refinanced in connection with the Deltic merger. Refer to Note 7: Debt for a more detailed discussion of our borrowings.

Income tax provision

Provision for income taxes for the third quarter 2018 was $5.4 million compared with $2.8 million for the prior year period. Income taxes are primarily due to income or loss from our taxable REIT subsidiaries (TRS). For the three months ended September 30, 2018, the TRS’s income before income tax was $41.5 million. For the same time last year, the TRS’s income before income tax was $8.8 million. The increase in the TRS’s income before income tax was primarily the result of higher lumber prices and the acquired Deltic Wood Products operations. On December 22, 2017, the Tax Act was enacted, which contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction to our TRS’s effective tax rate, resulting in $3.9 million in lower taxes in the third quarter of 2018. In addition, during the third quarter of 2018, we recorded a tax benefit of $5.3 million primarily related to deducting contributions to our qualified pension plans at the higher 2017 income tax rate.

Adjusted EBITDDA

Adjusted EBITDDA for third quarter 2018 was $101.8 million, an increase of $39.6 million or 63.6% compared with the same period in 2017. The increase in Adjusted EBITDDA was driven primarily by increased lumber pricing year over year and higher realizations on sawlogs due to the effect of higher lumber prices on indexed Idaho sawlogs, higher lumber and log volumes. Refer to the Business Segments Results below for further discussions on activities for each of our segments.  

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See Liquidityand Performance Measures for a reconciliation of Adjusted EBITDDA to net income, the closest comparable GAAP measure, for each of the periods presented.

Year to Date 2018 Results Compared with Year to Date 2017

Revenues

Revenues were $757.3 million, an increase of $254.0 million, or 50.5%, compared with the same period in 2017. Of this increase, $192.2 million was attributable to acquired Deltic operations. The remaining increase was primarily attributable to increased pricing in legacy Potlatch Wood Products along with increases in both Northern sawlog volume and pricing as the Northern markets experienced significant price increases for the first half of the year. These increases were offset by a decline in Southern harvest volumes on legacy Potlatch land as we shifted focus to harvesting more valuable large diameter Deltic sawlogs.  

In addition, consolidated rural real estate sales increased $3.8 million compared with the same period in 2017. This increase is mainly a result of 8,000 acres of non-strategic timberlands in Minnesota sold during the second quarter of 2018 to a conservation entity for $900 per acre.  

Cost of goods sold

Cost of goods sold increased $167.1 million, or 47.9%, compared with the same period in 2017, primarily due to the addition of the Deltic operations that were not present in the prior comparable period.

Depletion, depreciation and amortization increased primarily due to the following:

• Of the $20.6 million increase in depletion, $15.9 million was due to the addition of Deltic. In addition, increased harvest activities in the North due to favorable hauling conditions and increased depletion rates in the Southern legacy Potlatch timberlands contributed to the depletion increase.

• Depreciation increased $10.1 million primarily from the addition of Deltic’s two sawmills and the MDF plant.

• Basis of land sold increased $4.3 million due to the mix of sales compared with the same prior period in 2017 along with the sales of Deltic land during the year.

• At the merger date, Deltic’s lumber and panel inventory was recorded at fair value, resulting in $1.8 million of additional cost of goods sold from the sale of the inventory.

Selling, general and administrative expenses

SG&A expenses for the nine months ended September 30, 2018 were $45.4 million compared with $37.7 million during the same period in 2017. The increase includes $6.8 million of SG&A expenses attributable to acquired Deltic operations and $0.9 million attributable to higher consulting costs as part of the integration, which are expected to decline once the integration is complete. These costs are partly offset by decreases in the annual incentive plan accrual during the quarter to reflect year-to-date results.  

Deltic merger-related costs

Merger-related costs for the nine months ended September 30, 2018 were $21.2 million. This included $11.5 million in merger costs for investment banking fees, legal fees, accounting and appraisal fees and other costs related to filing the joint proxy/prospectus for the merger. Restructuring costs were $9.7 million, consisting primarily of termination benefits, which included accelerated share-based payment costs for qualifying terminations.

Interest expense, net

Interest expense was $25.1 million, compared with $19.7 million for the same period in 2017. The $5.5 million increase was primarily due to the $230 million in long-term debt assumed or refinanced in connection with the Deltic merger. Refer to Note 7: Debt for a more detailed discussion of our borrowings.

Income tax provision

Provision for income taxes for the nine months ended September 30, 2018 was $23.1 million compared with $14.0 million for the prior year period. Income taxes are primarily due to income or loss from our taxable REIT subsidiaries (TRS). For the nine months ended September 30, 2018, the TRS’s income before income tax was $110.6 million. For the same time last year, the TRS’s income before income tax was $40.4 million. The increase in the TRS’s income before income tax

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was primarily the result of higher lumber prices and the acquired Deltic wood products operations.On December 22, 2017, the Tax Act was enacted, which contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction to our TRS’s effective tax rate, resulting in $10.4 million in lower taxes in the nine months ended September 30, 2018. In addition, during the third quarter of 2018, we recorded a tax benefit of $5.3 million primarily related to deducting contributions to our qualified pension plans at the higher 2017 income tax rate.

Adjusted EBITDDA

Adjusted EBITDDA for nine months ended September 30, 2018 was $260.8 million, an increase of $115.5 million or 79.5% compared with the same period in 2017. The increase in Adjusted EBITTDA was driven primarily by increased Southern harvests and Wood Products volumes due to the addition of Deltic operations, higher lumber pricing and higher realization on Northern sawlogs. Refer to the Business Segments Results below for further discussions on activities for each of our segments.  

See Liquidity and Performance Measures for a reconciliation of Adjusted EBITDDA to net income, the closest comparable GAAP measure, for each of the periods presented.

Business Segment Results

Resource Segment

	Three Months Ended September 30,									Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			$ Change			2018			2017			$ Change
Revenues1	$	111,421		$	94,705		$	16,716		$	280,438		$	202,397		$	78,041
Costs and expenses:
Logging and hauling		(42,077	)		(37,446	)		(4,631	)		(111,282	)		(85,918	)		(25,364	)
Other		(8,497	)		(7,311	)		(1,186	)		(23,222	)		(20,192	)		(3,030	)
Selling, general and administrative expenses		(2,167	)		(1,914	)		(253	)		(5,866	)		(5,087	)		(779	)
Adjusted EBITDDA2	$	58,680		$	48,034		$	10,646		$	140,068		$	91,200		$	48,868

¹ Prior to elimination of intersegment fiber revenues of $32.5 million and $24.0 million for the three months ended September 30, 2018 and 2017, and $93.8 million and $51.6 million for the nine months ended September 30, 2018 and 2017, respectfully.

² Management uses Adjusted EBITDDA to evaluate the performance of the company. See Note 16: Segment Information.

Adjusted EBITDDA

The following table summarizes Adjusted EBITDDA variances for three and nine months ended September 30, 2018, compared with the three and nine months ended September 30, 2017:

(Dollars in thousands)	Three Months Ended			Nine Months Ended
Adjusted EBITDDA September 30, 2017	$	48,034		$	91,200
Volume - Northern		(7,126	)		8,550
Price / mix - Northern		8,400			21,235
Volume-Southern		12,198			42,352
Price / mix - Southern		686			2,227
Logging and hauling costs		(4,631	)		(25,363	)
Other forestry costs		(1,186	)		(3,031	)
Selling general and administrative expenses		(254	)		(780	)
Other costs, net		2,559			3,678
Adjusted EBITDDA September 30, 2018	$	58,680		$	140,068

Upon our merger with Deltic, we acquired approximately 530,000 acres of timberland, primarily in Arkansas. The revenues and Adjusted EBITDDA associated with these additional acres from the merger date through the end of third quarter 2018 are included in the results of our Resource segment. Results include other ancillary benefits from land ownership, such as revenues from hunting leases and oil and gas royalties.

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Third Quarter 2018 Results Compared with Third Quarter 2017

Segment Adjusted EBITDDA for the third quarter of 2018 was $58.7 million, an increase of $10.6 million, or 22.2%, compared with the same period in 2017. The increase in Adjusted EBITDDA is primarily the result of the following:

• Segment Adjusted EBITDA decreased $7.1 million due primarily to a 59,442 ton decrease in the volume of Northern sawlogs harvested. However, Northern prices increased $16 per ton, or 13.0%, compared to the same prior period in 2017 which resulted in a $8.4 million increase in segment Adjusted EBITDDA. The price increase reflects the effect of higher lumber prices on indexed Idaho sawlog volumes.

• Segment Adjusted EBITDA increased $12.2 million in Southern volume sold primarily due to the addition of the Deltic operations which were not present in the same period in 2017. We harvested 977,940 tons in the South during the third quarter of 2018 which was up 53.1% compared to the same period in 2017. Our Southern sawlog prices were $47 per ton for the three months ended September 30, 2018 compared to $46 per ton for the three months ended September 30, 2017 due primarily to a higher mix of larger diameter Deltic sawlogs.

These increases were partially offset by logging and hauling costs increasing $4.6 million primarily due to the higher harvest volumes in the South and higher fuel costs as well as other forestry costs increasing $1.2 million primarily due to the addition of the Deltic operations.

Year to Date 2018 Results Compared with Year to Date 2017

Adjusted EBITDDA for the nine months ended September 30, 2018 was $140.1 million, an increase of $48.9 million, or 53.6% compared with the same period in 2017. The increase in Adjusted EBITDDA is primarily the result of the following:

• Segment Adjusted EBITDA increased $8.6 million due primarily to a 78,946 ton increase in the volume of Northern sawlogs harvested. In addition, Northern prices increased $16 per ton, or 14.4%, compared to the same prior period in 2017 which resulted in a $21.2 million increase in segment Adjusted EBITDDA. The price increase reflects the effect of higher lumber prices on indexed Idaho sawlog volumes.

• Segment Adjusted EBITDA increased $42.4 million primarily due to the addition of Deltic operations during 2018 which were not present in the same period in 2017. We harvested 2.8 million tons in the South during the nine months ended September 30, 2018 which was up 77.4% compared to the same period in 2017. Our sawlog prices were $44 per ton for the nine months ended September 30, 2018 compared to $42 per ton for the nine months ended September 30, 2017. The increase in price per ton was primarily due to harvesting more valuable large diameter Deltic sawlogs.

These increases were partially offset by logging and hauling costs increasing $25.4 million primarily due to the higher harvest volumes along with increased fuel prices as well as forestry costs increasing $3.0 million primarily due to the addition of the Deltic operations.

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Resource Segment Statistics

	Three Months Ended September 30,							Nine Months Ended September 30,
Harvest Volumes (in tons)	2018		2017		Change			2018		2017		Change
Northern region
Sawlog		500,138		559,580		(59,442	)		1,326,556		1,247,610		78,946
Pulpwood		37,953		33,742		4,211			114,770		121,581		(6,811	)
Stumpage		3,210		1,434		1,776			13,268		12,127		1,141
Total		541,301		594,756		(53,455	)		1,454,594		1,381,318		73,276
Southern region
Sawlog		469,336		290,362		178,974			1,399,216		698,850		700,366
Pulpwood		446,914		334,399		112,515			1,185,018		833,565		351,453
Stumpage		61,690		14,024		47,666			187,010		29,480		157,530
Total		977,940		638,785		339,155			2,771,244		1,561,895		1,209,349
Total harvest volume		1,519,241		1,233,541		285,700			4,225,838		2,943,213		1,282,625
Sales Price/Unit ($ per ton)
Northern region1
Sawlog	$	139	$	123	$	16		$	127	$	111	$	16
Pulpwood	$	42	$	38	$	4		$	41	$	39	$	2
Stumpage	$	12	$	7	$	5		$	13	$	13	$	—
Southern region1
Sawlog	$	47	$	46	$	1		$	44	$	42	$	2
Pulpwood	$	31	$	30	$	1		$	31	$	30	$	1
Stumpage	$	11	$	14	$	(3	)	$	11	$	14	$	(3	)

¹ Sawlog and pulpwood sales prices are on a delivered basis, which includes contracted logging and hauling costs charged to the customer. Stumpage sales provide our customers the right to harvest standing timber. As such, the customer contracts the logging and hauling and bears such costs.

Wood Products Segment

	Three Months Ended September 30,									Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			$ Change			2018			2017			$ Change
Revenues	$	199,025		$	116,487		$	82,538		$	532,425		$	326,608		$	205,817
Costs and expenses1
Fiber costs		(74,233	)		(46,776	)		(27,457	)		(208,197	)		(135,380	)		(72,817	)
Freight, logging and hauling		(25,664	)		(12,786	)		(12,878	)		(61,282	)		(37,509	)		(23,773	)
Manufacturing costs		(50,902	)		(33,198	)		(17,704	)		(137,970	)		(91,247	)		(46,723	)
Finished goods inventory change		368			(983	)		1,351			8,318			687			7,631
Selling, general and administrative expenses		(2,160	)		(1,415	)		(745	)		(6,340	)		(4,320	)		(2,020	)
Loss (Gain) on lumber price swap2		—			3,066			(3,066	)		—			(199	)		199
Other		12			—			12			8			20			(12	)
Adjusted EBITDDA3	$	46,446		$	24,395		$	22,051		$	126,962		$	58,660		$	68,302

¹ Prior to elimination of intersegment fiber costs of $32.5 million and $24.0 million for the three months ended September 30, 2018 and 2017 and $93.8 million and $51.6 million for the nine months ended September 30, 2018 and 2017, respectively.

² Includes change in unrealized (gain) loss and $1 million in cash settlements.

³ Management uses Adjusted EBITDDA to evaluate the performance of the company. See Note 16: Segment Information.

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Adjusted EBITDDA

The following table summarizes Adjusted EBITDDA variances for the three and nine months ended September 30, 2018 compared with the three and nine months ended September 30, 2017:

(Dollars in thousands)	Three Months Ended			Nine Months Ended
Adjusted EBITDDA September 30, 2017	$	24,395		$	58,660
Shipment volumes - lumber		38,475			81,645
Price / mix - lumber		15,572			54,529
Panels		3,144			10,031
Residuals and other		6,838			20,126
Log costs - lumber		(21,523	)		(55,416	)
Freight, logging and hauling - lumber		(9,483	)		(17,728	)
Finished goods inventory change - lumber		277			6,896
Cost of sales		(10,491	)		(29,773	)
Selling general and administrative expenses		(758	)		(2,008	)
Adjusted EBITDDA September 30, 2018	$	46,446		$	126,962

Upon the merger with Deltic, we acquired two sawmills and one medium density fiberboard (MDF) plant in Arkansas. The sales and Adjusted EBITDDA of these facilities from the merger date to the end of the third quarter 2018 are included in the results of our Wood Products segment.

Third Quarter 2018 Results Compared with Third Quarter 2017

Adjusted EBITDDA for third quarter 2018 was $46.4 million, an increase of $22.1 million, or 90.4%, compared with the prior year period. The increase in Adjusted EBITDDA is primarily the result of the following:

• Lumber shipments increased 89.3 million board feet to 284.6 million board feet in the third quarter of 2018 compared to 195.3 million board feet in the second quarter of 2017. The increase is primarily due to the addition of the Deltic mills.

• Lumber sales prices increased to $486 per MBF compared with $431 per MBF during the same period in 2017. After reaching an all-time record high in June, prices have seen significant declines that has continued through the end of the third quarter.

• The contribution of panels increased $3.1 million due to the addition of the Deltic MDF plant as well as strong demand and pricing for industrial grade plywood.

• Residuals and other contributed $6.8 million more primarily due to the addition of the Deltic sawmills.

These increases were partially offset by costs incurred by the sawmills for logs and freight, logging and hauling which increased $21.5 million and $9.5 million, respectively, primarily due to Deltic. In addition, other lumber costs of sales increased $10.5 million primarily due to the addition of the two Deltic sawmills.

Year to Date 2018 Results Compared with Year to Date 2017

Adjusted EBITDDA for the nine months ended September 30, 2018 was $127.0 million, an increase of $68.3 million, or 116.4%, compared with the prior year period. The increase in Adjusted EBITDDA is primarily the result of the following:

• Lumber shipments increased 195.3 million board feet to 748.0 million board feet during the nine months ended September 30, 2018 compared to 552.6 million board feet in comparable prior period of 2017. The increase is primarily due to the addition of the Deltic mills.

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• Lumber sales prices increased 17.5% to $491per MBF compared with $418 per MBF during the same period in 2017 due to stronger demand coupled with industry supply constraints including transportation challenges experienced by Canadian lumber mills through the first half of the year that helped push pricing to all-time record highs in June of 2018. After achieving these all-time highs, prices have seen significant declines through the end of the third quarter.

• The contribution of panels increased $10.0 million due to the addition of the Deltic MDF plant as well as strong demand and pricing for industrial grade plywood.

• Residuals and other contributed $20.1 million more primarily due to the addition of the Deltic sawmills.

These increases were partially offset by costs incurred by the sawmills for logs and freight, logging and hauling increasing $55.4 million and $17.7 million, respectively, primarily due to the addition of the two Deltic lumber mills. In addition, other lumber costs of sales increased $29.8 million due primarily to the addition of the two Deltic sawmills during 2018.

Wood Products Segment Statistics

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018		2017		Change		2018		2017		Change
Lumber shipments (MBF)1		284,566		195,296		89,270		747,960		552,636		195,324
Lumber sales prices ($ per MBF)	$	486	$	431	$	55	$	491	$	418	$	73

¹ MBF stands for thousand board feet.

Real Estate Segment

	Three Months Ended September 30,									Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			$ Change			2018			2017			$ Change
Revenues	$	11,233		$	3,282		$	7,951		$	38,219		$	25,922		$	12,297
Costs and expenses
Costs of goods sold		(2,578	)		(548	)		(2,030	)		(7,189	)		(1,555	)		(5,634	)
Selling, general and administrative expenses		(1,188	)		(640	)		(548	)		(3,261	)		(2,034	)		(1,227	)
Adjusted EBITDDA1	$	7,467		$	2,094		$	5,373		$	27,769		$	22,333		$	5,436

¹ Management uses Adjusted EBITDDA to evaluate the performance of the company. See Note 16: Segment Information.

Adjusted EBTIDDA

The following table summarizes Adjusted EBITDDA variances for the three and nine months ended September 30, 2018 compared with the three and nine months ended September 30, 2017:

(Dollars in thousands)	Three Months Ended			Nine Months Ended
Adjusted EBITDDA September 30, 2017	$	2,094		$	22,333
Rural real estate sales		4,956			3,818
Real estate development sales		1,415			4,510
Selling, general and administrative expenses		(550	)		(1,231	)
Other costs, net		(448	)		(1,661	)
Adjusted EBITDDA September 30, 2018	$	7,467		$	27,769

Upon the Deltic merger, we acquired an established real estate development project in Little Rock, Arkansas known as Chenal Valley. The revenues and Adjusted EBITDDA of this operation from the merger date to the end of the third quarter are included in the results of our Real Estate segment.

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Third Quarter 2018 Results Compared with Third Quarter 2017

Adjusted EBITDDA for the third quarter of 2018 was $7.5 million, an increase of $ 5.4 million compared with the same period in 2017. The increase in Adjusted EBITDDA is primarily the result of the following:

• An increase in rural real estate sales of $5.0 million compared to the prior period of 2017. The increase is mainly due to the sale of approximately 390 acres in Arkansas for $3.7 million to a local water utility for conservation, compared to no similar sales in the third quarter of 2017. In addition, we saw an increase of 817 acres sold in rural recreational property for the quarter at an average price per acre of $1,480 per acre compared to $1,375 per acre for the third quarter of 2017. The average price per acre fluctuates based on both the geographic area of the real estate and product mix.

• Real estate development sales of 9 residential lots at an average price of $143,000 per lot in the Chenal Valley development.    

These increases were partially offset by increased selling, general and administrative expenses and other expenses primarily due to the addition of the real estate development and Chenal Country Club activities in 2018 following the Deltic merger.

Year to Date 2018 Results Compared with Year to Date 2017

Adjusted EBITDDA for the nine months ended 2018 was $27.8 million compared with $22.3 million for the same period in 2017. The increase in Adjusted EBITDDA is primarily the result of the following:

• Rural real estate sales increased $3.8 million compared with the same period in 2017. This increase is mainly a result of 8,000 acres of non-strategic timberlands in Minnesota sold during the second quarter of 2018 to a conservation entity for $900 per acre. This increase is offset by a decline in the mix of HBU and recreational real estate sales during the nine months ended September 30, 2018 compared to the prior period of 2017. The average price per acre fluctuates based on both the geographic area of the real estate and product mix.

• Real estate development sales consisted of 34 residential lots at an average price of $101,100 per lot in the Chenal Valley development.    

• These increases are offset by increased selling, general and administrative expenses and other expenses primarily due to the addition of the real estate development and Chenal Country Club activities in 2018 following the Deltic merger.

Rural Real Estate	Three Months Ended September 30,
	2018				2017
	Acres Sold		Average Price/Acre		Acres Sold		Average Price/Acre
Higherandbetteruse(HBU)		1,136	$	4,615		628	$	2,278
Recreation real estate		2,024	$	1,480		1,207	$	1,375
Non-strategic timberland		—	$	—		191	$	1,007
Total		3,160	$	2,608		2,026	$	1,620
Development Real Estate	Three Months Ended September 30, 2018
	Lots or Acres Sold		Average $/ Lot
Residential lots	9		$	143,000

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Rural Real Estate	Nine Months Ended September 30,
	2018				2017
	Acres Sold		Average Price/Acre		Acres Sold		Average Price/Acre
Higherandbetteruse(HBU)		4,065	$	2,937		5,956	$	2,503
Recreation real estate		7,765	$	1,244		7,470	$	1,395
Non-strategic timberland		9,045	$	900		574	$	1,033
Total		20,875	$	1,425		14,000	$	1,852
Development Real Estate	Nine Months Ended September 30, 2018
	Lots or Acres Sold		Average $/ Lot
Residential Lots		34	$	101,100

Liquidity and Capital Resources

Overview

As of September 30, 2018, our cash and cash equivalents were $137.5 million, an increase of $17.1 million from December 31, 2017. The increase in cash and cash equivalents was primarily the result of an increase in cash generated by operations due to stronger lumber prices, partially offset by debt repayments, funding of qualified pension plans and higher dividend payments.

Earnings and Profit Distribution

On August 30, 2018, the board of directors approved a special distribution of approximately $222.0 million, payable on November 15, 2018, to stockholders of record on September 27, 2018. The special distribution amount equals the company’s determination of the accumulated earnings and profits of Deltic as of merger date and must be distributed by the company prior December 31, 2018 in order to maintain the company’s qualification as a REIT for U.S. federal income tax purposes. Common stockholders can elect to receive payment of the special distribution in the form of stock or cash, with the total cash payment to all stockholders limited to no more than 20%, or $44.4 million (Cash Amount), of the total distribution. If the aggregate amount of stockholder cash elections exceeds the Cash Amount, then the payment of such cash elections will be made on a pro rata basis to stockholders who made the cash election such that the aggregate amount paid in cash to such stockholders equals the Cash Amount, with the balance paid in shares of common stock.

Net Cash from Operations

Net cash provided from operating activities was $148.4 million for the first nine months of 2018, compared with $129.3 million for the first nine months of 2017. This $19.1 million increase in cash provided by operations was primarily attributable to increased cash receipts from customers of $245.4 million, partially offset by increased vendor payments of $158.1 million. These increases are primarily related to the increased transaction volumes associated with the Deltic merger. See Business Segment Results for additional information.

In addition to increases in customer receipts and vendor payments in 2018 compared to 2017, cash provided by operating activities in 2018 was affected by:

• Cash payments of $20.8 million associated with merger expenses.

• Cash contributions to our qualified pension plans of $52.1 million, including a $44.0 million voluntary contribution which allowed us to deduct the amount on our 2017 income tax return at higher rates. We contributed $5.3 million to our qualified pension plans for the first nine months of 2017.

• An increase in cash interest payments of $5.8 million, primarily due to debt assumed in connection with the Deltic merger.

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Net Cash Flows from Investing Activities

Net cash used in investing activities was $27.1 million for the nine months ended September 30, 2018, compared with $43.2 million used in 2017.

• In the nine months ended September 30, 2018, we invested $18.5 million in our Wood Products operations and spent $12.5 million in Resource, primarily to replant harvested timberlands. These amounts were partially offset by Deltic’s cash balance of $3.4 million at the merger date. Total capital spending for 2018 is expected to be $50 million to $55 million, excluding acquisitions.

• In the nine months ended September 30, 2017, we invested $9.4 million in our Wood Products operations and spent $11.6 million in Resource. In addition, we spent $22.0 to acquire timberlands.

Net Cash Flows from Financing Activities

Net cash used in financing activities was $100.5 million and $52.0 million for the nine months ended September 30, 2018 and 2017, respectively.

• In the first nine months of 2018, we repaid a net $20.3 million of debt, as well as paid $2.4 million in loan fees.

• Dividends to stockholders were $75.3 million, compared with $45.7 million paid in the first nine months of 2017. Our quarterly dividend increased approximately $10.0 million due to the issuance of approximately 22.0 million additional shares related to the merger and the increase of our quarterly dividend from $0.375 per share to $0.40 per share starting in December 2017.

Capital Structure

	September 30,			December 31,
(Dollars in millions)	2018			2017
Long-term debt	$	783,899		$	573,319
Cash and cash equivalents		(137,535	)		(120,457	)
Net debt		646,364			452,862
Market capitalization1		2,569,817			2,026,539
Enterprise value	$	3,216,181		$	2,479,401
Net debt to enterprise value		20.1	%		18.3	%
Dividend yield2		3.9	%		3.1	%
Weighted-average cost of debt, after tax3		4.2	%		4.3	%

¹ Market capitalization is based on outstanding shares of 62.8 million and 40.6 million times closing share prices of $40.95 and $49.90 as of September 28, 2018, and December 29, 2017, respectively.

² Dividend yield is based on annualized dividends per share of $1.60 and $1.53 divided by share prices of $40.95 and $49.90 as of September 28, 2018, and December 29, 2017, respectively.

³ Weighted-average cost of debt is based on outstanding principal balances only.

Liquidity and Performance Measures

The discussion below is presented to enhance the reader’s understanding of our operating performance, ability to generate cash and satisfy rating agency and creditor requirements. This information includes two measures: Adjusted EBITDDA and Cash Available for Distribution (CAD). These measures are not defined by GAAP and the discussion of Adjusted EBITDDA and CAD is not intended to conflict with or change any of the GAAP disclosures described herein.

We define CAD as cash provided by operating activities adjusted for capital spending for purchases of property, plant and equipment, timberlands reforestation and roads and acquisition of timber and timberlands. Management believes CAD is a useful indicator of the company’s overall liquidity, as it provides a measure of cash generated that is available for dividends to common stockholders (an important factor in maintaining our REIT status), repurchase of the company’s common shares, debt repayment, acquisitions and other discretionary and nondiscretionary activities. Our definition of CAD is limited in that it does not solely represent residual cash flows available for discretionary expenditures since the measure does not deduct the payments required for debt service and other contractual obligations. Therefore, we believe it is important to view CAD as a measure that provides supplemental information to our Condensed Consolidated Statements of Cash Flows. Our definition of CAD may be different from similarly titled measures reported by other companies, including those in our industry. CAD is not necessarily indicative of the CAD that may be generated in future periods.  

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Management uses Adjusted EBITDDA as a performance measure. Adjusted EBITDDA is a non-GAAP measure that management uses to allocate resources between segments and to evaluate performance about the business and that investors can use to evaluate the operational performance of the assets under management. It removes the impact of specific items that management believes do not directly reflect the core business operations on an ongoing basis. This measure should not be considered in isolation from and is not intended to represent an alternative to, our results reported in accordance with GAAP. Management believes that this non-GAAP measure, when read in conjunction with our GAAP financial statements, provides useful information to investors by facilitating the comparability of our ongoing operating results over the periods presented, the ability to identify trends in our underlying business and the comparison of our operating results against analyst financial models and operating results of other public companies that supplement their GAAP results with non-GAAP financial measures.

Our definition of Adjusted EBITDDA may be different from similarly titled measures reported by other companies. We define Adjusted EBITDDA as earnings before interest, taxes, depreciation, depletion, amortization, the basis of real estate sold, non-operating pension and other postretirement benefit costs, gains and losses on disposition of fixed assets, acquisition costs included in cost of goods sold, environmental charges, Deltic merger-related costs, non-cash impairments and other special items.

We reconcile Adjusted EBITDDA to net income for the consolidated company as it is the most comparable GAAP measures. See Note 16: Segment Information to the Condensed Consolidated Financial Statements included herein for the reconciliation required by GAAP for our segments.

The following table provides a reconciliation of net income to Adjusted EBITDDA for the respective periods:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2018		2017		2018		2017
Net income	$	60,336	$	33,700	$	121,081	$	74,865
Interest, net		10,109		7,336		25,125		19,654
Income tax		5,355		2,757		23,077		13,956
Depreciation, depletion and amortization		18,836		8,196		51,982		20,796
Basis of real estate sold		4,248		579		10,673		6,351
Non-operating pension and other postretirement benefit costs		1,942		1,596		5,707		4,788
Inventory purchase price adjustment in cost of goods sold1		—		—		1,849		—
Environmental charges for Avery Landing		—		4,978		—		4,978
Deltic merger related costs2		972		27		21,245		27
Lumber price swap3		—		3,066		—		(199	)
(Gain)/loss on fixed assets		12		—		11		16
Consolidated Adjusted EBITDDA	$	101,810	$	62,235	$	260,750	$	145,232

¹ The effect on cost of goods of fair value adjustments to the carrying amounts of inventory acquired in business combinations.

² Integration and restructuring costs related to the merger with Deltic – see Note 13: Merger, Integration and Other Costs in the Footnotes to theCondensed Consolidated Financial Statements.

³ Includes change in unrealized (gain) loss and $1.0 million in cash settlements.

The following table provides a reconciliation of Cash Provided by Operating Activities to CAD:

	Nine Months Ended September 30,
(Dollars in thousands)	2018			2017
Cash from operating activities1	$	148,368		$	129,345
Capital expenditures		(31,126	)		(43,055	)
CAD	$	117,242		$	86,290
Net cash from investing activites2	$	(27,052	)	$	(43,161	)
Net cash from financing activities	$	(100,530	)	$	(51,965	)

¹ Cash from operating activities for the nine months ended September 30, 2018 and 2017 includes cash paid for Deltic merger-related costs of $20.8 million and $0, respectively, and cash paid for real estate development expenditures of $3.1 million and $0, respectively.

² Net cash from investing activities includes payments for capital expenditures, which is also included in our reconciliation of CAD.

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Credit and Term Loan Agreements

On February 14, 2018, we entered into a Second Amended and Restated Credit Agreement with an expiration date of April 13, 2023. The amended agreement increases our revolving line of credit to $380 million, which may be increased by up to an additional $420 million. It also includes a sublimit of $75 million for the issuance of standby letters of credit and a sublimit of $25 million for swing line loans. Usage under either or both subfacilities reduces availability under the revolving line of credit. Pricing is consistent with the 2014 amended and restated credit agreement. The limitation on timberland acre sales was eliminated. As of September 30, 2018, approximately $1.0 million of capacity under our credit agreement was utilized by outstanding letters of credit, resulting in $379.0 million available for additional borrowings.

On March 22, 2018, we entered into a Second Amended and Restated Term Loan Agreement, which amended the existing amended and restated term loan agreement dated December 14, 2014. The agreement includes an additional $100 million of new loans and a $100 million loan assumed in connection with the Deltic merger. The $100 million of new loans represent a refinancing of credit facility borrowings acquired from Deltic. The agreement also allows for incremental future borrowings in an amount not to exceed $150 million. The limitation on timberland acre sales was eliminated.

The following table sets forth the financial covenants in the credit and term loan agreements and our status with respect to these covenants as of September 30, 2018:

	CovenantRequirement		Actuals at September 30, 2018
Interest coverage ratio	≥	3.00 to 1.00	8.76
Leverage ratio	≤	40%	20%

The Interest Coverage Ratio is EBITDDA, which is defined as net income adjusted for interest expense, income taxes, depreciation, depletion and amortization, the basis of real estate sold and non-cash equity compensation expense, divided by interest expense for the same period.

The Leverage Ratio is our Total Funded Indebtedness divided by our Total Asset Value. Our Total Funded Indebtedness consists of long-term debt, including any current portion of long-term debt, revolving line of credit borrowings and the amount outstanding under the letter of credit subfacility.

Total Asset Value (TAV) includes the estimated fair value of timberlands, the book basis of our Wood Products manufacturing facilities (limited to 10% of TAV), the book basis of Construction in Progress (limited to 10% of TAV), the book basis of the Pro Rata Share of Investment Affiliates (limited to 15% of TAV), cash and cash equivalents and company-owned life insurance (limited to 5% of TAV). Construction in Progress means, as of any date, (a) the construction of a new operating facility or (b) an expansion with greater than $10 million of capital expenditures to an existing facility. Investment Affiliate means any person in which any member of the Consolidated Parties, directly or indirectly, has an ownership interest, whose financial results are not consolidated into our financial statements.

The terms of our senior notes limit our ability and the ability of any subsidiary guarantors to enter into restricted transactions, which include the ability to borrow money, pay dividends, redeem or repurchase capital stock, enter into sale and leaseback transactions and create liens. However, such restricted transactions are permitted if the balance of our cumulative Funds Available for Distribution (FAD) and a FAD basket amount provide sufficient funds to cover such restricted payments. At September 30, 2018, our cumulative FAD was $313.4 million and the FAD basket was $90.1 million. FAD is defined as net income plus depreciation, depletion, amortization and basis of real estate sold, minus capital expenditures. Capital expenditures exclude timberland purchases greater than $5.0 million.

Contractual Obligations

Other than debt assumed from the merger with Deltic described in Note 7: Debt in the Notes to Condensed Consolidated Financial Statements, which is incorporated herein by reference, there have been no material changes to our contractual obligations in the nine months ended September 30, 2018 outside the ordinary course of business.

Credit Ratings

Two major debt rating agencies routinely evaluate our debt and our cost of borrowing can increase or decrease depending on our credit rating. In April 2018, Moody’s upgraded our debt rating from 'Ba1' to ‘Baa3’, with a Stable outlook. In July 2018, Standard & Poor’s upgraded our debt rating from ‘BB+’ to ‘BBB-’, with a stable outlook. We are now investment-grade rated by both agencies.  

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Off-Balance Sheet Arrangements

We currently are not a party to off-balance sheet arrangements that would require disclosure under this section.

Critical Accounting Policies and Estimates

As a result of our merger with Deltic, we recognize identifiable assets acquired and liabilities assumed at their acquisition date fair value. Goodwill, if any, as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While we use our best estimates and assumptions for the purchase price allocation process to value assets acquired and liabilities assumed at the acquisition date, our estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill (or to earnings in the event that there is no goodwill) to the extent that we identify adjustments to the preliminary purchase price allocation. We will recognize measurement period adjustments and any resulting effect on earnings during the period in which the adjustment is identified. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments will be recorded to our consolidated statement of operations.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Other than debt assumed from the merger with Deltic described in Note 7: Debt in the Notes to Condensed Consolidated Financial Statements, which is incorporated herein by reference, our exposures to market risk have not changed materially since December 31, 2017. For quantitative and qualitative disclosures about market risk, see Item 7A – Quantitative and Qualitative Disclosure about Market Risk in our 2017 Annual Report on Form 10-K.

Quantitative Information about Market Risks

The table below provides information about our outstanding long-term debt, weighted-average interest rates and interest rate swaps as of September 30, 2018. For debt obligations, the table presents principal cash flows and related weighted-average interest rates by expected maturity dates. For interest rate swaps, the table presents notional amounts and weighted-average interest rates by expected (contractual) maturity dates. Notional amounts are used to calculate the contractual payments to be exchanged under the contract. Weighted-average variable rates are based on implied forward rates in the yield curve.

	EXPECTED MATURITY DATE
(Dollars in thousands)	2018		2019			2020			2021			2022			THEREAFTER			TOTAL			FAIR VALUE
Variable rate debt:
Principal due	$	—	$	40,000		$	40,000		$	40,000		$	—		$	156,500		$	276,500		$	276,503
Average interest rate				4.50	%		4.90	%		4.93	%					4.61	%		4.68	%
Fixed rate debt:
Principal due	$	—	$	150,000		$	6,000		$	—		$	43,000		$	315,735		$	514,735		$	513,025
Average interest rate				7.50	%		3.70	%					4.60	%		4.04	%		5.09	%
Interest rate swaps:
Variable to fixed	$	—	$	—		$	40,000		$	40,000		$	—		$	127,500		$	207,500		$	3,392
Average pay rate							2.84	%		2.92	%					2.61	%		2.71	%
Average receive rate							3.00	%		3.03	%					2.99	%		3.00	%

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We conducted an evaluation (pursuant to Rule 13a-15(b) of the Securities Exchange Act of 1934 (the Exchange Act)), under the supervision and with the participation of management, including the Chief Executive Officer (CEO) and Chief Financial Officer (CFO), of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act) as of September 30, 2018. These disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports that are filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. Our disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that this information is accumulated and communicated to management, including the principal executive and principal financial officers, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure. Based on the evaluation, the CEO and CFO have concluded that these disclosure controls and procedures were effective as of September 30, 2018.

There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives.

Internal Control over Financial Reporting

As a result of our February 20, 2018 merger with Deltic, we implemented internal controls over significant processes specific to the acquisition that management believes are appropriate in consideration of related integration of operations, systems, control activities and accounting for the merger and merger-related transactions. As of the date of this Quarterly Report on Form 10-Q, we are in the process of further integrating the acquired Deltic operations into our overall internal controls over financial reporting.

Except as described above, no changes in our internal control over financial reporting occurred during the three and nine months ended September 30, 2018 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Part II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We believe there is no pending or threatened litigation that could have a material adverse effect on our financial position, operations or liquidity.

ITEM 1A. RISK FACTORS

There have been no material changes in the risk factors previously disclosed in Risk Factors in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2017.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

On April 26, 2016, the Company announced that its Board of Directors had authorized management to repurchase up to $60 million of common stock over a period of 24 months (the Repurchase Plan) expiring on April 30, 2018. In total, $6.0 million of common stock was repurchased under the Repurchase Plan prior to its expiration with no shares repurchased during 2018.

On August 30, 2018, the Company announced that its Board of Directors had authorized management to repurchase up to $100 million of common stock with no time limit set for the repurchase. No shares were repurchased in the quarter ended September 30, 2018.

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ITEM 6. EXHIBITS

EXHIBIT NUMBER	DESCRIPTION
(3)(a)*	Third Restated Certificate of Incorporation of the Registrant, effective February 20, 2018, filed as Exhibit 3.1 to the Current Report on Form 8-K filed by the Registrant on February 21, 2018.
(3)(b)*	Bylaws of the Registrant, as amended through February 18, 2009, filed as Exhibit (3)(b) to the Current Report on Form 8-K filed by the Registrant on February 20, 2009.
(4)	See Exhibits (3)(a) and (3)(b). The registrant undertakes to furnish to the Commission, upon request, any instrument defining the rights of holders of long-term debt.
(31)	Rule 13a-14(a)/15d-14(a) Certifications.
(32)	Furnished statements of the Chief Executive Officer and Chief Financial Officer under 18 U.S.C. Section 1350.
(101)	The following financial information from PotlatchDeltic Corporation’s Quarterly Report on Form 10-Q for the nine months ended September 30, 2018, filed on October 31, 2018 formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Income (Loss) for the three and nine months ended September 30, 2018 and 2017, (ii) the Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2018 and 2017, (iii) the Condensed Consolidated Balance Sheets at September 30, 2018 and December 31, 2017, (iv) the Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2018 and 2017 and (v) the Notes to Condensed Consolidated Financial Statements.

* Incorporated by reference

45

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		PotlatchDeltic Corporation
		(Registrant)
		By	/s/ JERALD W. RICHARDS
			Jerald W. Richards
			Vice President and Chief Financial Officer
Date:	October 31, 2018

46

EX-31

Exhibit (31)

CERTIFICATIONS

I, Michael J. Covey, certify that:

1. I have reviewed this report on Form 10-Q of PotlatchDeltic Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 31, 2018	/s/ MICHAEL J. COVEY
	Michael J. Covey
	Chief Executive Officer

CERTIFICATIONS

I, Jerald W. Richards, certify that:

1. I have reviewed this report on Form 10-Q of PotlatchDeltic Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 31, 2018	/S/ JERALD W. RICHARDS
	Jerald W. Richards
	Vice President and Chief Financial Officer

EX-32

Exhibit (32)

STATEMENT OF CHIEF EXECUTIVE OFFICER UNDER 18 U.S.C. § 1350

I, Michael J. Covey, Chief Executive Officer of PotlatchDeltic Corporation (the Company), certify pursuant to section 1350 of Chapter 63 of Title 18 of the United States Code that, to my knowledge:

(1) the Quarterly Report of the Company on Form 10-Q for the period ended September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the Report), fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ MICHAEL J. COVEY

Michael J. Covey

Chief Executive Officer

October 31, 2018

STATEMENT OF CHIEF FINANCIAL OFFICER UNDER 18 U.S.C. § 1350

I, Jerald W. Richards, Vice President and Chief Financial Officer of PotlatchDeltic Corporation (the Company), certify pursuant to section 1350 of Chapter 63 of Title 18 of the United States Code that, to my knowledge:

(1) the Quarterly Report of the Company on Form 10-Q for the period ended September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the Report), fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ JERALD W. RICHARDS

Jerald W. Richards

Vice President and Chief Financial Officer

October 31, 2018

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	Sep. 30, 2018	Oct. 29, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	PCH
Entity Registrant Name	PotlatchDeltic Corporation
Entity Central Index Key	0001338749
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		62,754,582

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Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenues		$ 289,199	$ 190,441	$ 757,329	$ 503,351
Costs and expenses:
Cost of goods sold		195,584	124,727	515,645	348,581
Selling, general and administrative expenses		14,901	13,240	45,449	37,687
Deltic merger-related costs	[1]	972	27	21,245	27
Environmental charges for Avery Landing			4,978		4,978
Loss (gain) on lumber price swap			2,080		(1,185)
Total costs and expenses		211,457	145,052	582,339	390,088
Operating income		77,742	45,389	174,990	113,263
Interest expense, net		(10,109)	(7,336)	(25,125)	(19,654)
Non-operating pension and other postretirement employee benefit costs		(1,942)	(1,596)	(5,707)	(4,788)
Income before income taxes		65,691	36,457	144,158	88,821
Income taxes		(5,355)	(2,757)	(23,077)	(13,956)
Net income		$ 60,336	$ 33,700	$ 121,081	$ 74,865
Net income per share:
Basic (in dollars per share)		$ 0.96	$ 0.83	$ 2.06	$ 1.83
Diluted (in dollars per share)		0.93	0.82	2.03	1.82
Dividends per share (in dollars per share)		$ 0.40	$ 0.375	$ 1.20	$ 1.125
Weighted-average shares outstanding (in thousands):
Basic (in shares)		62,985,517	40,829,399	58,765,381	40,814,135
Diluted (in shares)		64,721,657	41,250,457	59,542,200	41,182,795

[1] For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 60,336	$ 33,700	$ 121,081	$ 74,865
Other comprehensive income, net of tax:
Amortization of prior service credit included in net income, net of tax benefit of $(565), $(838), $(1,695) and $(2,513)	[1]	(1,608)	(1,309)	(4,824)	(3,929)
Amortization of actuarial loss included in net income, net of tax expense of $1,164, $1,562, $3,491 and $4,686	[1]	3,311	2,443	9,934	7,330
Cash flow hedge, net of tax expense (benefit) of $166, $0, $386 and $(87)		1,591		1,850	(137)
Other comprehensive income, net of tax		3,294	1,134	6,960	3,264
Comprehensive income		$ 63,630	$ 34,834	$ 128,041	$ 78,129

[1] Amortization of prior service credit (cost) and amortization of actuarial loss are included in the computation of net periodic cost (benefit).

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Amortization of prior service credit included in net income, tax benefit	$ (565)	$ (838)	$ (1,695)	$ (2,513)
Amortization of actuarial loss included in net income, tax expense	1,164	1,562	3,491	4,686
Cash flow hedge, tax expense (benefit)	$ 166	$ 0	$ 386	$ 87

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 137,535	$ 120,457
Customer receivables, net	39,029	11,240
Inventories	73,864	50,132
Other current assets	18,988	11,478
Total current assets	269,416	193,307
Property, plant and equipment, net	340,146	77,229
Investment in real estate held for development and sale	76,523
Timber and timberlands, net	1,684,049	654,476
Deferred tax assets, net		19,796
Trade name and customer relationships intangibles, net	19,241
Other long-term assets	23,696	8,271
Total assets	2,413,071	953,079
Current liabilities:
Distribution payable	222,000
Accounts payable and accrued liabilities	80,258	55,201
Current portion of long-term debt		14,263
Current portion of pension and other postretirement employee benefits	6,088	5,334
Total current liabilities	308,346	74,798
Long-term debt	783,899	559,056
Pension and other postretirement employee benefits	89,035	103,524
Deferred tax liabilities, net	38,575
Other long-term obligations	14,147	15,159
Total liabilities	1,234,002	752,537
Commitments and contingencies
Stockholders' equity:
Common stock, $1 par value	62,755	40,612
Additional paid-in capital	1,483,750	359,144
Accumulated deficit	(256,280)	(104,363)
Accumulated other comprehensive loss	(111,156)	(94,851)
Total stockholders’ equity	1,179,069	200,542
Total liabilities and stockholders' equity	$ 2,413,071	$ 953,079

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Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Common stock, par value	$ 1	$ 1

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Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)		Sep. 30, 2018 USD ($)		Sep. 30, 2017 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES
Net income			$ 121,081		$ 74,865
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization	$ 19,445		53,685		21,908
Basis of real estate sold	4,248		10,673		6,351
Change in deferred taxes			13,879		(925)
Pension and other postretirement employee benefits			12,221		9,863
Equity-based compensation expense			6,518		3,536
Other, net			(1,220)		(1,467)
Change in working capital and operating-related activities, net			(13,289)		20,489
Real estate development expenditures			(3,081)
Funding of qualified pension plans			(52,099)		(5,275)
Net cash from operating activities			148,368		129,345
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment			(18,496)		(9,445)
Timberlands reforestation and roads			(12,464)		(11,577)
Acquisition of timber and timberlands			(166)		(22,033)
Other, net			655		(106)
Cash and cash equivalents acquired in Deltic merger			3,419
Net cash from investing activities			(27,052)		(43,161)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends to common stockholders			(75,305)		(45,686)
Proceeds from Potlatch revolving line of credit			100,000
Repayment of Potlatch revolving line of credit			(100,000)
Revolving line of credit repayment attributable to Deltic			(106,000)
Proceeds from issue of long-term debt			100,000
Repayment of long-term debt			(14,250)		(5,000)
Debt issuance costs			(2,434)
Other, net			(2,541)		(1,279)
Net cash from financing activities			(100,530)		(51,965)
Change in cash, cash equivalents and restricted cash			20,786		34,219
Cash, cash equivalents and restricted cash at beginning of period			120,457		82,584
Cash, cash equivalents and restricted cash at end of period	141,243		141,243		116,803
Cash paid during the period for:
Interest, net of amounts capitalized			23,183		17,381
Income taxes, net			10,335		13,923
NONCASH INVESTING AND FINANCING ACTIVITIES
Earnings and profits distribution payable			222,000
Cash and cash equivalents	137,535		137,535		$ 116,803
Restricted cash included in other long-term assets	$ 3,708	[1]	$ 3,708	[1]
Restricted Cash and Cash Equivalents, Noncurrent, Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent		us-gaap:OtherAssetsNoncurrent		us-gaap:OtherAssetsNoncurrent
Deltic [Member]
NONCASH INVESTING AND FINANCING ACTIVITIES
Equity issued as consideration for our merger with Deltic			$ 1,142,775

[1] Amounts included in restricted cash represent proceeds held by a qualified intermediary that are intended to be reinvested in timber and timberlands.

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Basis of Presentation

9 Months Ended

Sep. 30, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of Presentation

NOTE 1. BASIS OF PRESENTATION

Our unaudited condensed consolidated financial statements provide an overall view of our results and financial condition and include the results of Deltic Timber Corporation (Deltic) beginning February 21, 2018, the first full business day following the merger of Deltic into Portland Merger, LLC, a wholly-owned subsidiary of Potlatch. See Note 3: Merger with Deltic. Potlatch was renamed PotlatchDeltic Corporation immediately after consummation of the merger.

Intercompany transactions and accounts have been eliminated in consolidation.

The accompanying unaudited Condensed Consolidated Financial Statements 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. 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 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, 2017, as filed with the Securities and Exchange Commission on February 16, 2018. Results of operations for interim periods should not be regarded as necessarily indicative of the results that may be expected for the full year.

RECLASSIFICATIONS

Components of prior year pension plan and other postretirement benefit plan costs were reclassified to non-operating pension and other postretirement benefit costs to conform to the 2018 presentation. See Note 2: Recent Accounting Pronouncements.

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

Recent Accounting Pronouncements

NOTE 2. RECENT ACCOUNTING PRONOUNCEMENTS

New Accounting Standards – Recently Adopted

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014‑09, Revenue from Contracts with Customers: Topic 606, which requires an entity to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASU No. 2014-09 also included other guidance, including the presentation of a gain or loss recognized on the sale of a long-lived asset or a nonfinancial asset. We adopted ASU No. 2014-09 on January 1, 2018 using the cumulative effect method. There was no adjustment to accumulated deficit upon adoption. Adoption of this ASU resulted in expanded disclosures, but did not have a material impact on our condensed consolidated financial statements, processes or internal controls. See Note 5:Revenue Recognition for our expanded disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation – Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires an entity to present service cost within compensation expense and the other components of net benefit cost outside of income from operations. We adopted this ASU retrospectively on January 1, 2018, and have reclassified non-service costs from operating income to non-operating costs. There was no change to income before income taxes. The adjustments made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 are as follows:

	For the Three Months Ended September 30, 2017						For the Nine Months Ended September 30, 2017
(Dollars in thousands)	Previously Reported		Effect of Change		As Adjusted		Previously Reported		Effect of Change		As Adjusted
Operating income	$	43,793		1,596	$	45,389	$	108,475		4,788	$	113,263

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which reduces the complexity in the accounting standards by allowing the recognition of current and deferred income taxes for an intra-entity asset transfer, other than inventory, when the transfer occurs. We adopted this ASU on January 1, 2018 on a modified retrospective basis through a $1.3 million cumulative-effect adjustment directly to accumulated deficit as of January 1, 2018.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) Restricted Cash, which requires entities to include in their cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and restricted cash equivalents. The ASU does not define the terms restricted cash and restricted cash equivalents. The amendments are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The company adopted ASU 2016-18 during the first quarter of 2018, applying the standard retrospectively to all periods presented. The adoption of this standard did not have an impact on our historical condensed consolidated financial statements. At September 30, 2018 we had restricted cash of $3.7 million included in other long-term assets related to proceeds held by a qualified intermediary that are intended to be reinvested in timberlands.

In January 2017, the FASB issued ASU No. 2017-1, Business Combinations (Topic 805): Clarifying the Definition of a Business. The standard provides guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or a business. We adopted this ASU on January 1, 2018 and accounted for the merger with Deltic as an acquisition of a business.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815), Targeted Improvements to Accounting for Hedging Activities, which amends and simplifies existing guidance to allow companies to more accurately present the economic effects of risk management activities in the financial statements. ASU 2017-12 requires that when a hedge is deemed effective, hedge accounting must be applied to the entire change in fair value of the hedging instrument eliminating the notion of ineffective portions of the hedge relationship. The entire change in the fair value of the hedging instrument will be recorded in the same income statement line item as the hedged item and the ineffective portion will no longer be separately recognized in earnings. This ASU is effective for public entities for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted in any interim period. ASU 2017-12 is required to be adopted using a modified retrospective approach with the presentation and disclosure requirements only required on a prospective basis. We adopted ASU 2017-12 effective April 1, 2018, which resulted in no material impact to our condensed consolidated financial statements.

In February 2018, the FASB issued ASU No. 2018-2, Income Statement – Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the December 22, 2017, H.R. 1, Tax Cuts and Jobs Act (the Act). This ASU is effective for us on January 1, 2019, with early adoption permitted. We adopted this ASU on January 1, 2018 and reclassified the income tax effects of the Act on pension and other postretirement employee benefits and a cash flow hedge within accumulated other comprehensive loss to accumulated deficit. In future periods, our accounting policy will be to release income tax rate change effects from accumulated other comprehensive loss to accumulated deficit. Upon adoption, accumulated other comprehensive loss was increased by $23.3 million, with a corresponding decrease to accumulated deficit. See Note 11: Components of Accumulated Other Comprehensive Loss.

New Accounting Standards – Recently Issued

In August 2018, the FASB issued ASU No. 2018-15 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which clarifies the accounting for implementation costs in cloud computing arrangements. ASU 2018-15 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Topic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the disclosure requirements for defined benefit pension plans and other postretirement plans. ASU 2018-14 is effective for fiscal years after December 15, 2020, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2021 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements on fair value measurements. ASU 2018-13 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07 Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. ASU 2018-07 is effective for fiscal years after December 15, 2018, including interim periods within those years. Early application of the amendment is permitted. We expect to adopt the standard on January 1, 2019. We are currently evaluating the impact of our pending adoption of ASU 2018-07 on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The objective of the new standard is to establish principles for lessees and lessors to report information about the amount, timing and uncertainty of cash flows arising from a lease and disclose key information about leasing arrangements. The new standard establishes a right-of-use model (ROU) that requires a lessee to recognize a ROU asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. For leases with a term of 12 months or less, the lessee is permitted to make an accounting policy election by class of underlying asset to not recognize lease assets and lease liabilities. The standard, along with subsequent amendments, is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years; early application is permitted. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparable period presented in the financial statements as its date of initial application.  

We expect to adopt ASU 2016-02, along with subsequent amendments, on January 1, 2019 and use the effective date as our date of initial application. Consequently, financial information will not be updated, and the disclosures required under the new standard will not be provided for dates and periods before January 1, 2019. The new standard provides several optional practical expedients in transition and for an entity’s ongoing accounting. We continue to assess and document the effect of this ASU and subsequent amendments either made or being contemplated by the FASB. This assessment and documentation includes reviewing all forms of leases, performing a completeness assessment over our lease population and analyzing the practical expedients. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets and lease liabilities, which includes not recognizing ROU assets or lease liabilities for short-term leases of those assets in transition.

We expect the adoption of this ASU will result in minor refinements to our controls over financial reporting and will significantly expand financial statement disclosures as we have operating leases covering office space, equipment and vehicles expiring at various dates through 2033. We currently expect our right-of use assets and lease liabilities recorded upon adoption will approximate the present value of our current future minimum lease payments required under our operating leases in effect upon adoption. Lease costs will generally continue to be recognized on a straight-line basis. As of December 31, 2017, the undiscounted cash flows of our operating leases were $14.4 million.

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Merger with Deltic

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Merger with Deltic

NOTE 3. MERGER WITH DELTIC

On February 20, 2018 (merger date), Deltic Timber Corporation (Deltic) merged into Portland Merger, LLC, a wholly-owned subsidiary of Potlatch. Deltic owned approximately 530,000 acres of timberland, operated two sawmills and a medium density fiberboard plant and was engaged in real estate development primarily in Arkansas. The merger creates a combined company with a diversified timberland base of nearly 2 million acres, including approximately 930,000 acres in Arkansas. It uniquely positions us to expand our integrated model of timberland ownership and lumber manufacturing, provide significant tax savings on Deltic’s timber harvest earnings and increase our exposure to the fast-growing Texas housing market.

Under the merger agreement, each issued and outstanding share of Deltic common stock was exchanged for 1.80 shares of Potlatch common stock, with cash paid in lieu of any fractional shares. Upon consummation of the merger, all outstanding Deltic stock options (which fully vested as of the merger date) and restricted stock units (RSUs) were converted into Potlatch stock options and RSUs, after giving effect to the 1.80 exchange ratio. Because the Deltic stock options are fully vested and relate to services rendered to Deltic prior to the merger, the replacement stock options are also fully vested and their fair value is included in the consideration transferred. A portion of the replacement RSUs relate to services to be performed post-merger and therefore are not included in consideration transferred. See additional details about replacement share-based payment awards in Note 12: Equity-Based Compensation.

The following table summarizes the total consideration transferred in the merger:

(Dollars in thousands, except share and per share amounts)
Number of shares of Deltic common stock outstanding1		12,121,223
Number of Deltic performance awards2		90,515
		12,211,738
Exchange ratio3		1.80
Potlatch shares issued		21,981,128
Price per Potlatch common share4	$	51.95
Aggregate value of Potlatch common shares issued	$	1,141,920
Cash paid in lieu of fractional shares	14
Fair value of stock options and RSUs5	841
Consideration transferred	$	1,142,775

¹ Number of shares of Deltic common stock issued and outstanding as of February 20, 2018, net of fractional shares.

² Number of shares of Deltic performance awards for pre-combination services rendered that vested upon closing of the merger.

³ Exchange ratio per the merger agreement.

⁴ Closing price of Potlatch common shares on February 20, 2018.

⁵ Fair value of Deltic stock options for pre-combination services rendered that vested upon closing of the merger, as well as RSUs for pre-combination services rendered.

On August 30, 2018, the board of directors approved a special distribution of $222.0 million, payable on November 15, 2018, to stockholders of record on September 27, 2018. The special distribution amount equals the company’s determination of the accumulated earnings and profits of Deltic as of merger date and must be distributed by the company prior to December 31, 2018 in order to maintain the company’s qualification as a REIT for U.S. federal income tax purposes. Common stockholders can elect to receive payment of the special distribution in the form of stock or cash, with the total cash payment to all stockholders limited to no more than 20%, or $44.4 million (Cash Amount), of the total distribution. If the aggregate amount of stockholder cash elections exceeds the Cash Amount, then the payment of such cash elections will be made on a pro rata basis to stockholders who made the cash election such that the aggregate amount paid in cash to such stockholders equals the Cash Amount, with the balance paid in shares of common stock. The declaration of this special distribution created a $222.0 million unconditional obligation for the company as of August 30, 2018 which is recorded as distribution payable on the Condensed Consolidated Balance Sheets at September 30, 2018. See Note: 3 Earnings Per Share for further discussion on the impact of the special distribution on diluted earnings per share.

The company entered into a two-year consulting agreement for $1.85 million with Deltic’s former Chief Executive Officer. While the agreement was terminated in the first quarter of 2018, payments are required to be made through the end of the two year term. This agreement was considered a separate transaction from the business combination, therefore the $1.85 million was recorded as merger costs in the first quarter of 2018.

We expensed approximately $1.0 million and $21.2 million of merger-related costs during the three and nine months ended September 30, 2018, respectively. See Note 13: Merger, Integration and other Costsfor the components of merger-related costs. These costs are included in Deltic merger-related costs in ourCondensed Consolidated Statements of Income.

The amount of revenue and income before income taxes from acquired Deltic operations included in our Condensed Consolidated Statement of Income for February 21, 2018 through September 30, 2018 are as follows:

(Dollars in thousands)	Three Months Ended September 30, 2018		Nine Months Ended September 30, 2018
Net sales	$	83,385	$	192,244
Income before income taxes	$	17,180	$	25,869

Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2017 is as follows:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net sales	$	289,199	$	252,097	$	795,992	$	673,575
Net earnings attributable to PotlatchDeltic common shareholders	$	61,327	$	30,099	$	142,314	$	63,862
Basic earnings per share attributable to PotlatchDeltic common Shareholders	$	0.91	$	0.44	$	2.13	$	0.95
Diluted earnings per share attributable to PotlatchDeltic common shareholders	$	0.91	$	0.44	$	2.12	$	0.95

Pro forma net earnings attributable to PotlatchDeltic common shareholders excludes $1.0 million and $26.7 million of non-recurring merger-related costs incurred by both companies during the three and nine months ended September 30, 2018, respectively, of which $5.4 million were incurred by Deltic prior to the merger.

Pro forma basic and diluted earnings per share assumes issuance of approximately 22.0 million shares that were issued at the merger date as of the beginning of 2017. Pro forma basic and diluted earnings per share also assumes the issuance of 4.2 million shares as of the beginning of 2017, which is the estimated number of shares from the special distribution required to settle the estimated stock portion of the liability at September 30, 2018. Pro forma data may not be indicative of the results that would have been obtained had these events occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.

PotlatchDeltic has accounted for the merger transaction as the acquirer and has applied the acquisition method of accounting. Under the acquisition method, the assets acquired and liabilities assumed from Deltic were generally recorded as of the date of the merger at their respective estimated fair values.

Our September 30, 2018 Condensed Consolidated Balance Sheet includes the assets and liabilities of Deltic, which have been measured at fair value as of the merger date. The fair values of the assets acquired and liabilities assumed were preliminarily determined using the income, cost and market approaches, as applicable. The fair value measurements were generally based on significant inputs that are not observable in the market and thus represent Level 3 measurements as defined in ASC 820, Fair Value Measurements and Disclosures, except for certain long-term debt instruments assumed in the acquisition that can be valued using observable market inputs and are therefore Level 2 measurements. The income approach and cost approach were primarily used to value acquired timber and timberlands. The income approach was primarily used to value the acquired real estate held for development and sale. The income approach estimates fair value for an asset based on the present value of cash flow projected to be generated by the asset. Projected cash flows are discounted at rates of return that reflect the relative risk of achieving the cash flows and the time value of money. The cost approach, which estimates value by determining the current cost of replacing an asset with another of equivalent economic utility, was used, as appropriate, for property and equipment. The cost to replace a given asset reflects the estimated reproduction or replacement cost for the property, less an allowance for loss in value due to depreciation. The market approach was primarily used to value long-term debt instruments. The market approach estimates fair value for an asset based on values of recent comparable transactions.

The following table summarizes the preliminary fair value measurements of assets acquired and liabilities assumed as of merger date:

(Dollars in thousands)	February 20, 2018		Measurement Period Adjustments			As Adjusted February 20, 2018
ASSETS
Cash and cash equivalents	$	3,419	$	—		$	3,419
Customer receivables, net		12,709		—			12,709
Inventories		17,316		—			17,316
Other current assets		8,276		524			8,800
Real estate held for development and sale		79,000		(2,000	)		77,000
Property, plant and equipment		265,901		(5,132	)		260,769
Timber and timberlands		1,060,000		913			1,060,913
Mineral rights		—		6,236			6,236
Trade name and customer relationships intangibles		19,000		500			19,500
Other long-term assets		2,010		1,546			3,556
Total assets acquired		1,467,631		2,587			1,470,218
LIABILITIES
Accounts payable and accrued liabilities		12,604		3,418			16,022
Current portion of pension and other postretirement employee benefits		754		—			754
Long-term debt		229,968		—			229,968
Pension and other postretirement employee benefits		36,155		—			36,155
Deferred tax liabilities, net		44,439		(831	)		43,608
Other long-term liabilities		936		—			936
Total liabilities assumed		324,856		2,587			327,443
Net assets acquired	$	1,142,775	$	—		$	1,142,775

The real estate held for development and sale adjustment of $2.0 million was based on continued refinement of information as of the merger date factored into the valuation. The property, plant and equipment adjustment of $ 5.1 million related to further refinement and review of the inputs associated with valuation of the acquired buildings and equipment including items such as estimated useful lives, maintenance expenditures and market comparables. The $ 0.9 million adjustment to timber and timberlands is a combination of the separation of the mineral rights value previously included in the timber and timberlands, offset by further revisions to the underlying valuation assumptions. The mineral rights measurement period adjustment of $6.2 million related to certain oil and gas royalty payments from third party extractive activities on the acquired land. This amount is included in other long-term assets in the Condensed Consolidated Balance Sheets. The other long-term asset measurement period adjustment of $1.5 million was related to sales and use tax credits from the State of Arkansas. The accounts payable and accrued liabilities measurement period adjustment of $3.4 million was primarily for estimated 2017 Deltic taxes payable estimated at merger date and adjusted with the 2017 tax return filing. Other measurement changes were not significant and mainly a result of continued refinement of information as of the merger date that have been factored into the valuation. As a result of these adjustments, during the three and nine months ended September 30, 2018 we recorded approximately $0 and $0.2 million, respectively, of additional depreciation, depletion and amortization expense as measurement period adjustments.

These estimated fair values are preliminary in nature and subject to adjustments, which could be material. We have not identified any material unrecorded pre-merger contingencies where the related asset, liability or impairment is probable and the amount can be reasonably estimated. We are currently in the process of finalizing our valuations related to the following:

• Timber and timberlands

• Mineral rights

• Property, plant and equipment

• Real estate held for development and sale

• Intangible assets, which includes trade names and customer relationships

• Other contractual rights and obligations

• Income taxes

Our valuations will be finalized when certain information arranged to be obtained has been received, our review of that information has been completed and our review of the underlying assumptions within the valuation models has been completed. Prior to the finalization of the purchase price allocation, if information becomes available that would indicate it is probable that such events had occurred and the amounts can be reasonably estimated, such items will be included in the final purchase price allocation.

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Earnings per Share

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings per Share

NOTE 4. EARNINGS PER SHARE

The following table reconciles the number of shares used in calculating basic and diluted earnings per share:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net income	$	60,336	$	33,700	$	121,081	$	74,865
Basic weighted-average shares outstanding		62,985,517		40,829,399		58,765,381		40,814,135
Incremental shares due to:
Performance shares		269,998		378,149		262,648		331,082
Restricted stock units		37,535		42,909		32,736		37,578
Stock portion of earnings and profits distribution		1,428,607		—		481,435		—
Diluted weighted-average shares outstanding		64,721,657		41,250,457		59,542,200		41,182,795
Basic net income per share	$	0.96	$	0.83	$	2.06	$	1.83
Diluted net income per share	$	0.93	$	0.82	$	2.03	$	1.82

In February 2018 we issued 22.0 million shares in connection with the Deltic merger. Further, on August 30, 2018, the board of directors approved a special distribution of $222.0 million to be paid on November 15, 2018 in connection with the acquisition in order to maintain the company’s qualification as a REIT. Using a volume weighted average price of our common stock for final three trading days in September, we estimated 4.2 million shares would be required to settle the 80% stock portion of the $222.0 million special distribution accrual at September 30, 2018. The weighted average shares for the dilutive effect on earnings per share from the stock portion of the special distribution was based on the August 30, 2018 declaration date. See Note 3: Merger with Deltic for further discussion on the merger.

For the three and nine months ended September 30, 2018, there were 15,966 and 38,320 stock-based awards that were excluded from the calculation of diluted earnings per share because they were anti-dilutive. Anti-dilutive stock-based awards could be dilutive in future periods. For the three and nine months ended September 30, 2017, there were 0 and 167 stock-based awards that were excluded from the calculation of diluted earnings per share because they were anti-dilutive.

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Revenue Recognition

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Revenue Recognition

NOTE 5. REVENUE RECOGNITION

The majority of our revenues are derived from the sale of delivered logs, manufactured wood products, residual wood product by-products and real estate. We recognize revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers.

Performance Obligations

A performance obligation, as defined in ASC 606, is a promise in a contract to transfer a distinct good or service to a customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue at the point in time, or over the period, in which the performance obligation is satisfied.

Performance obligations associated with delivered log and residual sales are typically satisfied when the logs and residuals are delivered to our customers’ mills. Performance obligations associated with the sale of wood products are typically satisfied when the products are shipped (FOB shipping point) or upon delivery to our customer (FOB destination) depending on the terms of the customer contract. Shipping and handling costs for all wood product and residual sales are accounted for as cost of goods sold.

ASC Topic 606 requires entities to consider significant financing components of contracts with customers, but allows for the use of a practical expedient when the period between satisfaction of a performance obligation and payment receipt is one year or less. Given the nature of our revenue transactions, we have elected to utilize this practical expedient. Substantially all of our performance obligations are satisfied as of a point in time. We have also elected to use the practical expedient to not disclose unsatisfied or partially satisfied performance obligations as all unsatisfied contracts are expected to be satisfied in less than one year.

Performance obligations associated with real estate sales are generally satisfied at a point in time when all conditions of closing have been met.

Contract Estimates

The transaction price for log and residual sales is determined using contractual rates applied to delivered volumes. The contractual rates are generally based on prevailing market prices and payment is generally due from customers within one month or less of delivery. For log and residual sales subject to long-term supply agreements, the transaction price is variable but is known at the time of delivery. For wood products sales, the transaction price is generally the amount billed to the customer based on the prevailing market price for the products shipped but may be reduced slightly for estimated cash discounts.

There are no significant contract estimates related to the real estate business.

Contract Balances

In general, a customer receivable is recorded as we ship and/or deliver wood products, logs and residuals. We generally receive payment shortly after products have been received by our customers. As of September 30, 2018 and December 31, 2017 we recorded $4.7 million and $1.7 million, respectively, for contract liabilities related to hunting lease rights. These contract liabilities are being amortized over the term of the contracts, which is typically less than twelve months. Other contract asset and liability balances, such as prepayments, are immaterial. For real estate sales, we typically receive the entire consideration in cash at closing.

Major Products

The following table represents our revenues by major product. For additional information regarding our segments, see Note 16: Segment Information.

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Resource
Northern region
Sawlogs	$	69,658		$	68,699		$	168,869		$	139,043
Pulpwood		1,575			1,272			4,654			4,718
Stumpage		39			11			175			153
Other		765			292			1,233			798
		72,037			70,274			174,931			144,712
Southern region
Sawlogs		21,974			13,314			61,194			29,547
Pulpwood		13,700			9,938			36,138			24,892
Stumpage		653			191			2,106			420
Other		3,057			988			6,069			2,826
		39,384			24,431			105,507			57,685
Total Resource revenues		111,421			94,705			280,438			202,397
Wood Products
Lumber		138,281			84,233			367,062			230,807
Panels		36,655			17,945			106,785			54,923
Residuals		24,089			14,309			58,578			40,878
Total Wood Products revenues		199,025			116,487			532,425			326,608
Real Estate
Rural real estate		8,238			3,282			29,740			25,922
Development real estate		1,287			—			4,249			—
Other		1,708			—			4,230			—
Total Real Estate revenues		11,233			3,282			38,219			25,922
Total segment revenues		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Total consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

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Certain Balance Sheet Components

9 Months Ended

Sep. 30, 2018

Balance Sheet Related Disclosures [Abstract]

Certain Balance Sheet Components

NOTE 6. CERTAIN BALANCE SHEET COMPONENTS

INVENTORIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Logs	$	22,096	$	20,133
Lumber, panels and veneer		38,067		20,889
Materials and supplies		13,701		9,110
Total inventories	$	73,864	$	50,132

OTHER CURRENT ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Rural real estate held for sale	$	9,045	$	7,721
Taxes receivable		3,865		—
Prepaid expenses		3,965		2,862
Other receivables		2,113		882
Interest rate swaps		—		13
Total other current assets	$	18,988	$	11,478

PROPERTY, PLANT AND EQUIPMENT

(Dollars in thousands)	September 30, 2018			December 31, 2017
Property, plant and equipment	$	538,251		$	259,437
Less: accumulated depreciation		(198,105	)		(182,208	)
Total property, plant and equipment, net	$	340,146		$	77,229

TIMBER AND TIMBERLANDS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Timber and timberlands	$	1,605,564	$	581,648
Logging roads		78,485		72,828
Total timber and timberlands, net	$	1,684,049	$	654,476

OTHER LONG-TERM ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Mineral rights	$	5,882	$	—
Credit facility issuance costs		2,551		1,097
Interest rate swaps		3,392		1,156
Restricted cash		3,708		—
Investment in company owned life insurance (COLI)		2,741		1,996
Deferred real estate development costs		2,487		2,565
Other		2,935		1,457
Total other long-term assets	$	23,696	$	8,271

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Accrued payroll and benefits	$	19,980	$	18,110
Accounts payable		18,114		9,361
Accrued interest		10,078		6,385
Accrued taxes		9,868		5,103
Avery Landing accrual (see Note 15: Commitments and Contingencies)		—		6,000
Other current liabilities		22,218		10,242
Total accounts payable and accrued liabilities	$	80,258	$	55,201

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Debt

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Debt

NOTE 7. DEBT

MEDIUM-TERM NOTES

We repaid $14.3 million of our medium-term notes during the nine months ended September 30, 2018. The remaining $3.0 million medium-term notes have a fixed interest rate of 8.75% and mature in 2022.

REVENUE BONDS

We assumed the obligations relating to the Letter of Credit supporting Deltic’s $29.0 million Union County, Arkansas Taxable Industrial Revenue Bonds 1998 Series due October 1, 2027. Neither the State of Arkansas nor Union County, Arkansas has any liability under the bonds. Contemporaneously with the issuance of the bonds, Deltic’s subsidiary (Del-Tin) and Union County entered into a lease agreement that obligated Del-Tin to make lease payments in an amount necessary to fund the debt service on the bonds. Under the terms of the lease agreement, a standby letter of credit to benefit the holders of the bonds is required. The irrevocable standby letter of credit was amended and re-issued on February 20, 2018, in the amount of $29.7 million, expiring April 13, 2023. These bonds bear interest at a variable rate determined weekly by the remarketing agent. Interest is payable monthly.  

TERM LOANS

On March 22, 2018, we entered into a Second Amended and Restated Term Loan Agreement, which amended the existing term loan agreement dated December 14, 2014. The agreement includes an additional $100 million of new loans used to refinance Deltic’s $106 million credit facility and a $100 million loan assumed in connection with the Deltic merger. The interest coverage ratio and leverage ratio financial covenants are unchanged (at least 3.00 to 1.00 and no more than 40%, respectively). The limitation on timberland acre sales was eliminated. As of September 30, 2018, we were in compliance with all covenants under our debt agreements.

The $100 million repayment of Deltic’s credit facility funded by a $100 million borrowing under our revolving credit facility was subsequently refinanced with two tranches of term loans aggregating $100 million under the Second Amended and Restated Term Loan Agreement.

The following summarizes the three term loan tranches added in the first quarter of 2018:

• one $100 million tranche maturing 2025 with a fixed rate of 4.05% assumed in connection with the merger;

• one $65 million tranche maturing 2028 at a variable rate based on one-month LIBOR plus 1.95%; and

• one $35 million tranche maturing 2028 at a variable rate based on one-month LIBOR plus 1.95%.

The $65 million and $35 million tranches added in the first quarter of 2018 were hedged to yield a fixed-rate of 4.80%. There were no additional term loan tranches added in the third quarter of 2018. See Note 8: Derivative Instruments.

CREDIT AGREEMENT

On February 14, 2018, we entered into a Second Amended and Restated Credit Agreement with an expiration date of April 13, 2023. The amended agreement increases our revolving line of credit to $380 million, which may be increased by up to an additional $420 million. It also includes a sublimit of $75 million for the issuance of standby letters of credit and a sublimit of $25 million for swing line loans. Usage under either or both subfacilities reduces availability under the revolving line of credit.

Pricing is set according to the type of borrowing. LIBOR Loans are issued at a rate equal to the LIBOR Rate, while Base Rate Loans are issued at a rate equal to the Base Rate, which is a fluctuating rate per annum equal to the highest of (a) the Federal Funds Rate plus 1/2 of 1.00%, (b) the rate of interest in effect for such day as publicly announced from time to time by KeyBank as its prime rate and (c) the sum of the LIBOR that would apply to a one month Interest Period plus 1.00%. The interest rates we pay for borrowings under either type of loan include an additional Applicable Rate, which can range from 0.875% to 1.70% for LIBOR loans and from 0% to 0.70% for Base Rate loans, depending on our current credit rating. As of September 30, 2018, we were able to borrow under the bank credit facility with the additional applicable rate of 1.30% for LIBOR Loans and 0.30% for Base Rate Loans, with facility fees of 0.20% on the $380 million of the bank credit facility.

The interest coverage ratio and leverage ratio financial covenants are unchanged (at least 3.00 to 1.00 and no more than 40%, respectively). The limitation on timberland acre sales was eliminated. As of September 30, 2018, we were in compliance with all covenants under our credit agreements.

As of September 30, 2018, there were no borrowings under the revolving line of credit and approximately $1.0 million of the $380 million credit facility is utilized by outstanding letters of credit.

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Derivative Instruments

9 Months Ended

Sep. 30, 2018

Derivative Instrument Detail [Abstract]

Derivative Instruments

NOTE 8. DERIVATIVE INSTRUMENTS

From time to time, we enter into derivative financial instruments to manage certain cash flow and fair value risks. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset or liability to a particular risk, such as interest rate risk, are considered fair value hedges. We had three fair value interest rate swaps with notional amounts totaling $14.3 million, which matured during the first quarter of 2018. A $50 million notional fair value swap associated with our senior notes was terminated in December 2017 at a cost of $0.4 million. The termination cost has been recorded as a reduction to the carrying value of our long-term debt and will be amortized to earnings through the original maturity date of November 2019. Approximately $0.2 million will be recorded as interest expense over the next twelve months.

Derivatives designated and qualifying as a hedge of the exposure to variability in the cash flows of a specific asset or liability that is attributable to a particular risk, such as interest rate risk, are considered cash flow hedges. We have four interest rate swaps to convert variable-rate debt, comprised of 1-month and 3-month LIBOR plus a spread, to fixed-rate debt. Our cash flow hedges are expected to be highly effective in achieving offsetting cash flows attributable to the hedged interest rate risk through the term of the swaps. Therefore, changes in fair value are recorded as a component of other comprehensive income and will be recognized in earnings when the hedged interest rates affect earnings. The amounts paid or received on the swaps will be recognized as adjustments to interest expense. As of September 30, 2018, the amount of net losses expected to be reclassified into earnings in the next 12 months is $0.1 million.

The following table presents the gross fair values of derivative instruments on our Condensed Consolidated Balance Sheets:

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Location	September 30, 2018		December 31, 2017		Location	September 30, 2018		December 31, 2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts	Other assets, current	$	—	$	13		$	—	$	—
Derivatives designated in cash flow hedging relationships:
Interest rate contracts	Other assets, non-current	$	3,392	$	1,156		$	—	$	—

The following table details the effect of derivatives on our Consolidated Statements of Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	Location	2018			2017			2018			2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts
Realized gain (loss) on interest rate contracts1	Interest expense	$	(52	)	$	76		$	(138	)	$	366
Derivatives designated in cash flow hedging relationships:
Interest rate contracts
Gain (loss) recognized in other comprehensive income, net of tax		$	1,330		$	(30	)	$	1,394		$	(258	)
Loss reclassified from accumulated other comprehensive income1	Interest expense	$	(261	)	$	(30	)	$	(456	)	$	(121	)
Derivatives not designated as hedging instruments:
Lumber price contracts
Realized gain on lumber price swap		$	—		$	986		$	—		$	986
Unrealized gain (loss) on lumber price swap	Gain (loss) on lumber price swap	$	—		$	(3,067	)	$	—		$	199
Net gain (loss) on lumber price contracts		$	—		$	(2,081	)	$	—		$	1,185
Interest expense, net		$	10,109		$	7,336		$	25,125		$	19,654

¹ Realized gain (loss) on hedging instruments consist of net cash settlements and interest accruals on interest rate swaps during the periods. Net cash settlements are included in the supplemental cash flow information within interest, net of amounts capitalized in the Condensed Consolidated Statements of Cash Flows.

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Financial Instruments

9 Months Ended

Sep. 30, 2018

Derivative Instrument Detail [Abstract]

Financial Instruments

NOTE 9. FINANCIAL INSTRUMENTS

The following table presents the estimated fair values of our financial instruments:

	September 30, 2018						December 31, 2017
(Dollars in thousands)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Cash, cash equivalents and restricted cash (Level 1)	$	141,243		$	141,243		$	120,457		$	120,457
Derivative assets related to interest rate swaps (Level 2)	$	3,392		$	3,392		$	1,169		$	1,169
Long-term debt, including current portion (Level 2):
Term loans	$	(539,007	)	$	(536,158	)	$	(343,500	)	$	(345,222	)
Senior notes		(149,721	)		(156,375	)		(149,528	)		(161,063	)
Revenue bonds		(94,735	)		(93,539	)		(65,735	)		(63,967	)
Medium-term notes		(3,000	)		(3,456	)		(17,250	)		(18,227	)
Total long-term debt1	$	(786,463	)	$	(789,528	)	$	(576,013	)	$	(588,479	)
Company owned life insurance asset (COLI) (Level 3)	$	2,741		$	2,741		$	1,996		$	1,996

¹ The carrying amount of long-term debt includes principal and unamortized discounts.

For cash, cash equivalents, restricted cash and any revolving line of credit borrowings, the carrying amount approximates fair value due to the short-term nature of these financial instruments.

The fair value of interest rate swaps are determined using discounted cash flow analysis on the expected cash flows of each derivative. The analysis reflects the contractual terms of the derivatives, including the period to maturity and uses observable market-based inputs, including interest rate forward curves.

The fair value of our long-term debt is estimated based upon quoted market prices for similar debt issues or estimated based on average market prices for comparable debt when there is no quoted market price.

The contract value of our company owned life insurance is based on the amount at which it could be redeemed and, accordingly, approximates fair value.

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Pension and Other Postretirement Employee Benefits

9 Months Ended

Sep. 30, 2018

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Pension and Other Postretirement Employee Benefits

NOTE 10. PENSION AND OTHER POSTRETIREMENT EMPLOYEE BENEFITS

The following tables detail the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefits (OPEB):

	Three Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	2,181		$	1,688		$	99		$	3
Interest cost		4,344			4,024			391			316
Expected return on plan assets		(5,095	)		(4,601	)		—			—
Amortization of prior service cost (credit)		46			72			(2,219	)		(2,219	)
Amortization of actuarial loss		4,148			3,621			327			384
Net periodic cost (benefit)	$	5,624		$	4,804		$	(1,402	)	$	(1,516	)
	Nine Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	6,272		$	5,065		$	242		$	10
Interest cost		12,648			12,072			1,091			947
Expected return on plan assets		(14,938	)		(13,805	)		—			—
Amortization of prior service cost (credit)		139			216			(6,658	)		(6,658	)
Amortization of actuarial loss		12,442			10,863			983			1,153
Net periodic cost (benefit)	$	16,563		$	14,411		$	(4,342	)	$	(4,548	)

The following tables detail the pension and OPEB changes in accumulated other comprehensive loss on our Condensed Consolidated Balance Sheets, net of tax:

	Three Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2018	$	118,191		$	(2,627	)	$	115,564
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(34	)		1,642			1,608
Actuarial loss		(3,069	)		(242	)		(3,311	)
Total reclassification for the period		(3,103	)		1,400			(1,703	)
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Three Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2017	$	116,121		$	(6,943	)	$	109,178
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(44	)		1,353			1,309
Actuarial loss		(2,209	)		(234	)		(2,443	)
Total reclassification for the period		(2,253	)		1,119			(1,134	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

	Nine Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2017	$	100,611		$	(5,055	)	$	95,556
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(103	)		4,927			4,824
Actuarial loss		(9,207	)		(727	)		(9,934	)
Total reclassification for the period		(9,310	)		4,200			(5,110	)
Amortization reclassified from AOCL2		23,787			(372	)		23,415
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Nine Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2016	$	120,627		$	(9,182	)	$	111,445
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(132	)		4,061			3,929
Actuarial loss		(6,627	)		(703	)		(7,330	)
Total reclassification for the period		(6,759	)		3,358			(3,401	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

¹Amortization of prior service credit (cost) and amortization of actuarial loss are included in the computation of net periodic cost (benefit).

² See Note 2: Recent Accounting Pronouncements discussing the $23.3 million reclassification from AOCL to accumulated deficit.

FUNDED STATUS OF ACQUIRED PENSION PLAN ASSETS AND ASSUMED BENEFIT OBLIGATIONS

Consistent with accounting for the merger as the acquirer in a business combination, pension assets acquired and benefit obligations assumed were remeasured to reflect their funded status as of the date of the acquisition of Deltic. See Note 3: Merger with Deltic. This included updating asset values and updating discount rates to reflect market conditions as of the date of the merger. The funded status of plan assets and the benefit obligations as of February 20, 2018 were as follows:

• $38.7 million qualified pension plan assets

• $62.0 million qualified and non-qualified pension plan projected benefit obligation

• $13.5 million OPEB accumulated benefit obligation

FUNDING AND BENEFIT PAYMENTS

During the nine months ended September 30, 2018 and 2017, we paid non-qualified supplemental pension benefits of $1.3 million and $1.2 million, and OPEB benefits of $2.6 million and $2.6 million, respectively. During the nine months ended September 30, 2018 we made qualified pension benefit contributions of $52.1 million, of which $44.0 million were voluntary contributions. The $52.1 million contributions were designated for and included as deductions on our 2017 income tax return which allowed us to deduct those amounts at a higher rate. During the nine months ended September 30, 2017 we made qualified pension benefit contributions of $5.3 million.

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Components of Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Components of Accumulated Other Comprehensive Loss

NOTE 11. COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table details the changes in our accumulated other comprehensive loss (AOCL) on our Condensed Consolidated Balance Sheets for the nine months ended September 30, 2018, net of tax.

(Dollars in thousands)	Gains and losses on cash flow hedge			Pension Plans			OPEB			Total
Balance at December 31, 2017	$	(705	)	$	100,611		$	(5,055	)	$	94,851
Amounts arising during the period		(1,394	)		(9,310	)		4,200			(6,504	)
Amounts reclassified from AOCL to interest expense		(456	)		—			—			(456	)
Amounts reclassified from AOCL to accumulated deficit		(150	)		23,787			(372	)		23,265
Net change		(2,000	)		14,477			3,828			16,305
Balance at September 30, 2018	$	(2,705	)	$	115,088		$	(1,227	)	$	111,156

Amounts in parenthesis indicate credits.

Amounts reclassified from AOCL to accumulated deficit reflect the adoption of ASU No. 2018-2, Income Statement – Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. See Note 2: Recent Accounting Pronouncements. See also Note 8: Derivative Instruments and Note 10: Pension and Other Postretirement Employee Benefits for additional information regarding amounts arising during the period.

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Equity-Based Compensation

9 Months Ended

Sep. 30, 2018

Share Based Compensation [Abstract]

Equity-Based Compensation

NOTE 12. EQUITY-BASED COMPENSATION

As of September 30, 2018, we had three shareholder approved stock incentive plans under which performance shares, restricted stock units (RSUs) and deferred compensation stock equivalent units were outstanding. We were originally authorized to issue up to 1.6 million shares and 1.0 million shares under our 2005 Stock Incentive Plan and 2014 Stock Incentive Plan, respectively. At September 30, 2018, approximately 0.4 million shares were authorized for future use under those plans. Upon closing of the merger with Deltic, we assumed Deltic’s stockholder-approved 2002 Incentive Plan and reserved 0.25 million shares for issuance under the plan. We issue new shares of common stock to settle performance shares, restricted stock units and deferred compensation stock equivalent units.

The following table details equity-based compensation expense and the related income tax benefit:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2018		2017		2018		2017
Employee equity-based compensation expense:
Performance shares	$	1,074	$	905	$	3,084	$	2,678
Restricted stock units		536		283		1,470		858
Accelerated share-based termination benefits in connection with the merger		3		—		1,767		—
Total employee equity-based compensation expense	$	1,613	$	1,188	$	6,321	$	3,536
Deferred compensation stock equivalent units expense	$	16	$	166	$	197	$	488
Total tax benefit recognized for share-based expense	$	74	$	95	$	258	$	284

Employee equity-based compensation expense includes restricted stock unit awards issued to directors.

PERFORMANCE SHARES

The following table presents the key inputs used in the Monte Carlo simulation to calculate the fair value of the performance share awards in 2018 and 2017:

	Nine Months Ended September 30,
	2018			2017
Stock price as of valuation date	$	54.00		$	43.60
Risk-free rate		2.46	%		1.61	%
Expected volatility		23.74	%		24.22	%
Expected dividends		2.96	%		3.44	%
Expected term (years)		3.00			3.00
Fair value	$	75.37		$	53.85

The following table summarizes outstanding performance share awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		200,631		$	39.19
Granted		67,747		$	75.37
Forfeited		(5,082	)	$	47.90
Unvested shares outstanding at September 30, 2018		263,296		$	48.33	$	10,782

As of September 30, 2018, there was $5.8 million of unrecognized compensation cost related to unvested performance share awards, which is expected to be recognized over a weighted-average period of 1.0 years.

RESTRICTED STOCK UNITS

The following table summarizes outstanding RSU awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		67,871		$	32.87
Granted		43,693		$	51.54
Vested		(1,000	)	$	42.92
Forfeited		(3,694	)	$	45.36
Unvested shares outstanding at September 30, 2018		106,870		$	39.98	$	4,376

The fair value of each RSU equaled our common share price on the date of grant. As of September 30, 2018, there was $2.0 million of total unrecognized compensation cost related to unvested RSU awards, which is expected to be recognized over a weighted-average period of 1.0 years.

DEFERRED COMPENSATION STOCK EQUIVALENT UNITS

Through December 31, 2017, a long-term incentive award was granted annually to our directors and payable upon a director's separation from service. Effective May 2018, directors received restricted stock unit awards that may be deferred. Directors may also elect to defer their quarterly retainers, which may be payable in the form of stock. All stock unit equivalent accounts are credited with dividend equivalents. As of September 30, 2018, there were 146,502 shares outstanding that will be distributed in the future to directors as common stock.  

Issuance of restricted stock units awarded to certain officers and select employees may also be deferred. All stock unit equivalent accounts are credited with dividend equivalents. As of September 30, 2018, there were 74,989 RSUs which had vested, but issuance of the related stock had been deferred.

REPLACEMENT RESTRICTED STOCK UNIT AWARDS

The replacement RSUs issued as a result of the merger with Deltic have four-year vesting terms. During the vesting period, the grantee may vote and receive dividends on the shares, but the shares are subject to transfer restrictions and are all, or partially, forfeited if a grantee terminates employment. Expense for replacement RSUs will continue to be recognized over the remaining service period unless a qualifying termination occurs. A qualifying termination of an awardee will result in acceleration of vesting and expense recognition in the period that the qualifying termination occurs. Qualifying terminations during the nine months ended September 30, 2018 resulted in accelerated vesting of approximately 35,000 replacement RSUs and recognition of $1.8 million of expense. This accelerated expense recognition is included in merger-related integration costs as described in Note 13: Merger, Integration and other Costs.

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Merger, Integration and Other Costs

9 Months Ended

Sep. 30, 2018

Merger Integration And Other Costs [Abstract]

Merger, Integration and Other Costs

NOTE 13. MERGER, INTEGRATION AND OTHER COSTS

In connection with the merger with Deltic, we incurred costs such as advisory, legal, accounting, valuation and other professional or consulting fees. Restructuring costs relate to termination benefits and integration costs to combine business processes and locations.

(Dollars in thousands)	For the Three Months Ended September 30, 2018		For the Nine Months Ended September 30, 2018
Merger costs	$	892	$	11,515
Restructuring costs:
Termination benefits		—		8,782
Professional services		23		678
Other		57		270
		80		9,730
Total merger and restructuring costs	$	972	$	21,245

.

During the nine months ended September 30, 2018, we incurred termination benefits, which included accelerated share-based payment costs, for qualifying terminations. Employee termination benefits considered postemployment benefits are accrued when the obligation is probable and estimable, such as benefits stipulated by human resource policies. If the employee must provide future service greater than 60 days, such benefits are expensed ratably over the future service period. Accrued termination benefits are recorded in accrued payroll and benefits within accounts payable and accrued liabilities as detailed in Note 6: Certain Balance Sheet Components. Accrued termination benefits at September 30, 2018 are expected to be paid within one year.

Changes in accrued severance related to restructuring were as follows:

(Dollars in thousands)
Accrued severance as of December 31, 2017	$	—
Charges		8,782
Payments		(8,375	)
Accrued severance as of September 30, 2018	$	407

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Income Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

NOTE 14. INCOME TAXES

As a real estate investment trust (REIT), we generally are not subject to federal and state corporate income taxes on income of the REIT that we distribute to our shareholders. We conduct certain activities through our taxable REIT subsidiaries (TRS), which are subject to corporate level federal and state income taxes. These taxable activities are principally comprised of our wood products manufacturing operations and certain real estate investments. Therefore, income tax expense or benefit is primarily due to income or loss of the TRS, as well as permanent book versus tax differences.

Deltic’s REIT qualifying activities were also not subject to federal and state corporate income taxes commencing on the date of the merger. Deltic’s wood products manufacturing operations and real estate activities, which are conducted through TRS subsidiaries, are subject to corporate level federal and state income taxes.

On December 22, 2017, H.R. 1, commonly known as the Tax Cuts and Jobs Act (the Tax Act), was enacted. The Tax Act contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction in our TRS’s effective tax, resulting in $3.9 million and $10.4 million in lower taxes during the three and nine months ended September 30, 2018, respectively.

In addition, during third quarter of 2018 we recorded a tax benefit of $5.3 million primarily related to deducting contributions to our qualified pension plans on our 2017 federal tax returns at the higher 2017 income tax rate. See Note:10 Pension and Other Postretirement Employee Benefits.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2018

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 15. COMMITMENTS AND CONTINGENCIES

In January 2007, the Environmental Protection Agency (EPA) notified us that we were a potentially responsible party under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) and the Clean Water Act for cleanup of a site known as Avery Landing in northern Idaho. We owned a portion of the land at the Avery Landing site, which we acquired in 1980 from the Milwaukee Railroad. The land we owned at the site and adjacent properties were contaminated with petroleum as a result of the Milwaukee Railroad's operations at the site prior to 1980. Our remediation was completed in October 2013. In 2016, the EPA confirmed that Potlatch had completed the cleanup and subsequent monitoring required by the unilateral order. On September 25, 2015, the EPA sent us a letter asserting that the EPA and the Department of Transportation (the current owner of a portion of the adjacent property remediated by the EPA) (DOT) had incurred $9.8 million in unreimbursed response costs associated with the site and that we were liable for such costs. We executed six tolling agreements with the EPA and DOT suspending the statute of limitations on the claim until March 31, 2018 in order to facilitate negotiations of a final settlement. On December 22, 2017, we sold the land at Avery Landing. On April 10, 2018, the United States District Court for the District of Idaho entered a Consent Decree negotiated by the parties releasing us and our affiliates from any further liability for past response costs incurred by the United States Government in exchange for a final settlement payment of $6 million, which was paid in April 2018.

At any given time we are subject to claims and actions incidental to the operations of our business. Based on information currently available, we do not expect that any sums we may receive or have to pay in connection with any legal proceeding would have a materially adverse effect on our consolidated financial position or net cash flow.

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Segment Information

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Segment Information

NOTE 16. SEGMENT INFORMATION

Our businesses are organized into three reportable operating segments: Resource, Wood Products and Real Estate. Management activities in the Resource segment include planting and harvesting trees and building and maintaining roads. The Resource segment also generates revenues from non-timber resources such as hunting leases, recreation permits and leases, mineral rights leases, oil and gas royalties, biomass production and carbon sequestration. The Wood Products segment manufactures and markets lumber, plywood and MDF. The business of our Real Estate segment includes the sale of land holdings deemed non-strategic or identified as having higher and better use alternatives. The Real Estate segment also engages in master planned communities and development activities.

Effective February 20, 2018, we changed our operating segment disclosures in order to reflect the new measure of operating profit that management uses to allocate resources and assess performance. Management adopted the new measure due to the merger with Deltic. The significant increase in the company’s post-merger assets and the related fair value purchase accounting adjustments to acquired Deltic assets created a lack of comparability associated with the historical performance measures. This change has been reflected in the segment information for the three and nine months ended September 30, 2018. The segment information presented for comparative purposes for the three and nine months ended September 30, 2017 has also been revised to reflect this change.

The reporting segments follow the same accounting policies used for our Condensed Consolidated Financial Statements, with the exception of the valuation of inventories. All segment inventories are reported using the average cost method and the LIFO reserve is recorded at the corporate level.

Management primarily evaluates the performance of its segments and allocates resources to them based upon Adjusted EBITDDA. EBITDDA is calculated as net income (loss) before interest expense, income taxes, basis of real estate sold, depreciation, depletion and amortization. Adjusted EBITDDA excludes certain specific items that are considered to hinder comparison of the performance of our businesses either year-on-year or with other businesses. Although Adjusted EBITDDA is not a measure of financial condition or performance determined in accordance with GAAP, the company uses Adjusted EBITDDA to compare the operating performance of its segments on a consistent basis and to evaluate the performance and effectiveness of its operational strategies. The company’s calculation of Adjusted EBITDDA may not be comparable to that reported by other companies.

The following table summarizes information on revenues, Adjusted EBITDDA, depreciation, depletion and amortization and basis of real estate sold for each of the company’s reportable segments and includes a reconciliation of total Adjusted EBITDDA to income before income taxes:

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Revenues:
Resource	$	111,421		$	94,705		$	280,438		$	202,397
Wood Products		199,025			116,487			532,425			326,608
Real Estate		11,233			3,282			38,219			25,922
		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351
Adjusted EBITDDA:
Resource	$	58,680		$	48,034		$	140,068		$	91,200
Wood Products		46,446			24,395			126,962			58,660
Real Estate		7,467			2,094			27,769			22,333
Corporate		(8,989	)		(9,108	)		(28,969	)		(25,809	)
Eliminations and adjustments		(1,794	)		(3,180	)		(5,080	)		(1,152	)
Total Adjusted EBITDDA		101,810			62,235			260,750			145,232
Basis of real estate sold		(4,248	)		(579	)		(10,673	)		(6,351	)
Depreciation, depletion and amortization		(18,836	)		(8,196	)		(51,982	)		(20,796	)
Interest expense, net		(10,109	)		(7,336	)		(25,125	)		(19,654	)
Non-operating pension and other postretirement employee benefits		(1,942	)		(1,596	)		(5,707	)		(4,788	)
Gain (loss) on fixed assets		(12	)		—			(11	)		(16	)
Lumber price swap2		—			(3,066	)		—			199
Inventory purchase price adjustment in cost of goods sold3		—			—			(1,849	)		—
Environmental charges for Avery Landing		—			(4,978	)		—			(4,978	)
Deltic merger-related costs4		(972	)		(27	)		(21,245	)		(27	)
Income before income taxes	$	65,691		$	36,457		$	144,158		$	88,821
Depreciation, depletion and amortization:
Resource	$	12,730		$	6,207		$	35,974		$	14,865
Wood Products		5,827			1,821			15,250			5,487
Real Estate		81			—			198			1
Corporate		198			168			560			443
		18,836			8,196			51,982			20,796
Bond discounts and deferred loan fees5		609			369			1,703			1,112
Total depreciation, depletion and amortization	$	19,445		$	8,565		$	53,685		$	21,908
Basis of real estate sold:
Real Estate	$	4,267		$	618		$	10,886		$	6,474
Eliminations and adjustments		(19	)		(39	)		(213	)		(123	)
Total basis of real estate sold	$	4,248		$	579		$	10,673		$	6,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

² Includes change in unrealized (gain) loss and $1 million in cash settlements.

³ The effect on cost of goods sold for fair value adjustments to the carrying amounts of inventory acquired in business combinations.

⁴ For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

⁵ Bond discounts and deferred loan fees are reported within interest expense, net on the Condensed Consolidated Statement of Income.

A reconciliation of our business segment total assets to total assets in the CondensedConsolidatedBalance Sheet is as follows:

(Dollars in thousands)	September 30, 2018		December 31, 2017
Total assets:
Resource1	$	1,719,703	$	670,240
Wood Products		468,622		154,479
Real Estate2		89,190		—
		2,277,515		824,719
Corporate		135,556		128,360
Total consolidated assets	$	2,413,071	$	953,079

¹        We do not report rural real estate separate from Resource as we do not report these assets separately to management.

²          Real Estate assets primarily consist of real estate development acquired with the Deltic merger.

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Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

New Accounting Standards – Recently Adopted

New Accounting Standards – Recently Adopted

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014‑09, Revenue from Contracts with Customers: Topic 606, which requires an entity to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASU No. 2014-09 also included other guidance, including the presentation of a gain or loss recognized on the sale of a long-lived asset or a nonfinancial asset. We adopted ASU No. 2014-09 on January 1, 2018 using the cumulative effect method. There was no adjustment to accumulated deficit upon adoption. Adoption of this ASU resulted in expanded disclosures, but did not have a material impact on our condensed consolidated financial statements, processes or internal controls. See Note 5:Revenue Recognition for our expanded disclosures.

In March 2017, the FASB issued ASU No. 2017-07, Compensation – Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires an entity to present service cost within compensation expense and the other components of net benefit cost outside of income from operations. We adopted this ASU retrospectively on January 1, 2018, and have reclassified non-service costs from operating income to non-operating costs. There was no change to income before income taxes. The adjustments made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 are as follows:

	For the Three Months Ended September 30, 2017						For the Nine Months Ended September 30, 2017
(Dollars in thousands)	Previously Reported		Effect of Change		As Adjusted		Previously Reported		Effect of Change		As Adjusted
Operating income	$	43,793		1,596	$	45,389	$	108,475		4,788	$	113,263

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which reduces the complexity in the accounting standards by allowing the recognition of current and deferred income taxes for an intra-entity asset transfer, other than inventory, when the transfer occurs. We adopted this ASU on January 1, 2018 on a modified retrospective basis through a $1.3 million cumulative-effect adjustment directly to accumulated deficit as of January 1, 2018.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) Restricted Cash, which requires entities to include in their cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and restricted cash equivalents. The ASU does not define the terms restricted cash and restricted cash equivalents. The amendments are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The company adopted ASU 2016-18 during the first quarter of 2018, applying the standard retrospectively to all periods presented. The adoption of this standard did not have an impact on our historical condensed consolidated financial statements. At September 30, 2018 we had restricted cash of $3.7 million included in other long-term assets related to proceeds held by a qualified intermediary that are intended to be reinvested in timberlands.

In January 2017, the FASB issued ASU No. 2017-1, Business Combinations (Topic 805): Clarifying the Definition of a Business. The standard provides guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or a business. We adopted this ASU on January 1, 2018 and accounted for the merger with Deltic as an acquisition of a business.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815), Targeted Improvements to Accounting for Hedging Activities, which amends and simplifies existing guidance to allow companies to more accurately present the economic effects of risk management activities in the financial statements. ASU 2017-12 requires that when a hedge is deemed effective, hedge accounting must be applied to the entire change in fair value of the hedging instrument eliminating the notion of ineffective portions of the hedge relationship. The entire change in the fair value of the hedging instrument will be recorded in the same income statement line item as the hedged item and the ineffective portion will no longer be separately recognized in earnings. This ASU is effective for public entities for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted in any interim period. ASU 2017-12 is required to be adopted using a modified retrospective approach with the presentation and disclosure requirements only required on a prospective basis. We adopted ASU 2017-12 effective April 1, 2018, which resulted in no material impact to our condensed consolidated financial statements.

In February 2018, the FASB issued ASU No. 2018-2, Income Statement – Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the December 22, 2017, H.R. 1, Tax Cuts and Jobs Act (the Act). This ASU is effective for us on January 1, 2019, with early adoption permitted. We adopted this ASU on January 1, 2018 and reclassified the income tax effects of the Act on pension and other postretirement employee benefits and a cash flow hedge within accumulated other comprehensive loss to accumulated deficit. In future periods, our accounting policy will be to release income tax rate change effects from accumulated other comprehensive loss to accumulated deficit. Upon adoption, accumulated other comprehensive loss was increased by $23.3 million, with a corresponding decrease to accumulated deficit. See Note 11: Components of Accumulated Other Comprehensive Loss.

New Accounting Standards – Recently Issued

New Accounting Standards – Recently Issued

In August 2018, the FASB issued ASU No. 2018-15 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which clarifies the accounting for implementation costs in cloud computing arrangements. ASU 2018-15 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Topic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the disclosure requirements for defined benefit pension plans and other postretirement plans. ASU 2018-14 is effective for fiscal years after December 15, 2020, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2021 and are currently evaluating the impact of the standard on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements on fair value measurements. ASU 2018-13 is effective for fiscal years after December 15, 2019, including interim periods within those years; early application is permitted. We expect to adopt the standard on January 1, 2020 and are currently evaluating the impact of the standard on our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07 Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. ASU 2018-07 is effective for fiscal years after December 15, 2018, including interim periods within those years. Early application of the amendment is permitted. We expect to adopt the standard on January 1, 2019. We are currently evaluating the impact of our pending adoption of ASU 2018-07 on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The objective of the new standard is to establish principles for lessees and lessors to report information about the amount, timing and uncertainty of cash flows arising from a lease and disclose key information about leasing arrangements. The new standard establishes a right-of-use model (ROU) that requires a lessee to recognize a ROU asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. For leases with a term of 12 months or less, the lessee is permitted to make an accounting policy election by class of underlying asset to not recognize lease assets and lease liabilities. The standard, along with subsequent amendments, is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years; early application is permitted. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparable period presented in the financial statements as its date of initial application.  

We expect to adopt ASU 2016-02, along with subsequent amendments, on January 1, 2019 and use the effective date as our date of initial application. Consequently, financial information will not be updated, and the disclosures required under the new standard will not be provided for dates and periods before January 1, 2019. The new standard provides several optional practical expedients in transition and for an entity’s ongoing accounting. We continue to assess and document the effect of this ASU and subsequent amendments either made or being contemplated by the FASB. This assessment and documentation includes reviewing all forms of leases, performing a completeness assessment over our lease population and analyzing the practical expedients. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets and lease liabilities, which includes not recognizing ROU assets or lease liabilities for short-term leases of those assets in transition.

We expect the adoption of this ASU will result in minor refinements to our controls over financial reporting and will significantly expand financial statement disclosures as we have operating leases covering office space, equipment and vehicles expiring at various dates through 2033. We currently expect our right-of use assets and lease liabilities recorded upon adoption will approximate the present value of our current future minimum lease payments required under our operating leases in effect upon adoption. Lease costs will generally continue to be recognized on a straight-line basis. As of December 31, 2017, the undiscounted cash flows of our operating leases were $14.4 million.

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Recent Accounting Pronouncements (Tables)

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

Summary of Adjustments Made to Condensed Consolidated Statements of Income Due to Adoption of New Accounting Standards

The adjustments made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 are as follows:

	For the Three Months Ended September 30, 2017						For the Nine Months Ended September 30, 2017
(Dollars in thousands)	Previously Reported		Effect of Change		As Adjusted		Previously Reported		Effect of Change		As Adjusted
Operating income	$	43,793		1,596	$	45,389	$	108,475		4,788	$	113,263

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Merger With Deltic (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Summary of Total Consideration Transferred in Merger

The following table summarizes the total consideration transferred in the merger:

(Dollars in thousands, except share and per share amounts)
Number of shares of Deltic common stock outstanding1		12,121,223
Number of Deltic performance awards2		90,515
		12,211,738
Exchange ratio3		1.80
Potlatch shares issued		21,981,128
Price per Potlatch common share4	$	51.95
Aggregate value of Potlatch common shares issued	$	1,141,920
Cash paid in lieu of fractional shares	14
Fair value of stock options and RSUs5	841
Consideration transferred	$	1,142,775

¹ Number of shares of Deltic common stock issued and outstanding as of February 20, 2018, net of fractional shares.

² Number of shares of Deltic performance awards for pre-combination services rendered that vested upon closing of the merger.

³ Exchange ratio per the merger agreement.

⁴ Closing price of Potlatch common shares on February 20, 2018.

⁵ Fair value of Deltic stock options for pre-combination services rendered that vested upon closing of the merger, as well as RSUs for pre-combination services rendered.

Summary of Revenue and Income Before Income Taxes From Acquired Deltic Operations

The amount of revenue and income before income taxes from acquired Deltic operations included in our Condensed Consolidated Statement of Income for February 21, 2018 through September 30, 2018 are as follows:

(Dollars in thousands)	Three Months Ended September 30, 2018		Nine Months Ended September 30, 2018
Net sales	$	83,385	$	192,244
Income before income taxes	$	17,180	$	25,869

Summary of Unaudited Pro Forma Information

Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2017 is as follows:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net sales	$	289,199	$	252,097	$	795,992	$	673,575
Net earnings attributable to PotlatchDeltic common shareholders	$	61,327	$	30,099	$	142,314	$	63,862
Basic earnings per share attributable to PotlatchDeltic common Shareholders	$	0.91	$	0.44	$	2.13	$	0.95
Diluted earnings per share attributable to PotlatchDeltic common shareholders	$	0.91	$	0.44	$	2.12	$	0.95

Summary of Fair Value Measurements of Assets Acquired and Liabilities Assumed

The following table summarizes the preliminary fair value measurements of assets acquired and liabilities assumed as of merger date:

(Dollars in thousands)	February 20, 2018		Measurement Period Adjustments			As Adjusted February 20, 2018
ASSETS
Cash and cash equivalents	$	3,419	$	—		$	3,419
Customer receivables, net		12,709		—			12,709
Inventories		17,316		—			17,316
Other current assets		8,276		524			8,800
Real estate held for development and sale		79,000		(2,000	)		77,000
Property, plant and equipment		265,901		(5,132	)		260,769
Timber and timberlands		1,060,000		913			1,060,913
Mineral rights		—		6,236			6,236
Trade name and customer relationships intangibles		19,000		500			19,500
Other long-term assets		2,010		1,546			3,556
Total assets acquired		1,467,631		2,587			1,470,218
LIABILITIES
Accounts payable and accrued liabilities		12,604		3,418			16,022
Current portion of pension and other postretirement employee benefits		754		—			754
Long-term debt		229,968		—			229,968
Pension and other postretirement employee benefits		36,155		—			36,155
Deferred tax liabilities, net		44,439		(831	)		43,608
Other long-term liabilities		936		—			936
Total liabilities assumed		324,856		2,587			327,443
Net assets acquired	$	1,142,775	$	—		$	1,142,775

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Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Reconciliation of Number of Shares Used in Calculating Basic and Diluted Earnings per Share

The following table reconciles the number of shares used in calculating basic and diluted earnings per share:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Net income	$	60,336	$	33,700	$	121,081	$	74,865
Basic weighted-average shares outstanding		62,985,517		40,829,399		58,765,381		40,814,135
Incremental shares due to:
Performance shares		269,998		378,149		262,648		331,082
Restricted stock units		37,535		42,909		32,736		37,578
Stock portion of earnings and profits distribution		1,428,607		—		481,435		—
Diluted weighted-average shares outstanding		64,721,657		41,250,457		59,542,200		41,182,795
Basic net income per share	$	0.96	$	0.83	$	2.06	$	1.83
Diluted net income per share	$	0.93	$	0.82	$	2.03	$	1.82

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Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Summary of Revenues by Major Product

The following table represents our revenues by major product. For additional information regarding our segments, see Note 16: Segment Information.

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Resource
Northern region
Sawlogs	$	69,658		$	68,699		$	168,869		$	139,043
Pulpwood		1,575			1,272			4,654			4,718
Stumpage		39			11			175			153
Other		765			292			1,233			798
		72,037			70,274			174,931			144,712
Southern region
Sawlogs		21,974			13,314			61,194			29,547
Pulpwood		13,700			9,938			36,138			24,892
Stumpage		653			191			2,106			420
Other		3,057			988			6,069			2,826
		39,384			24,431			105,507			57,685
Total Resource revenues		111,421			94,705			280,438			202,397
Wood Products
Lumber		138,281			84,233			367,062			230,807
Panels		36,655			17,945			106,785			54,923
Residuals		24,089			14,309			58,578			40,878
Total Wood Products revenues		199,025			116,487			532,425			326,608
Real Estate
Rural real estate		8,238			3,282			29,740			25,922
Development real estate		1,287			—			4,249			—
Other		1,708			—			4,230			—
Total Real Estate revenues		11,233			3,282			38,219			25,922
Total segment revenues		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Total consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

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Certain Balance Sheet Components (Tables)

9 Months Ended

Sep. 30, 2018

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventories

INVENTORIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Logs	$	22,096	$	20,133
Lumber, panels and veneer		38,067		20,889
Materials and supplies		13,701		9,110
Total inventories	$	73,864	$	50,132

Schedule of Other Current Assets

OTHER CURRENT ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Rural real estate held for sale	$	9,045	$	7,721
Taxes receivable		3,865		—
Prepaid expenses		3,965		2,862
Other receivables		2,113		882
Interest rate swaps		—		13
Total other current assets	$	18,988	$	11,478

Schedule of Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

(Dollars in thousands)	September 30, 2018			December 31, 2017
Property, plant and equipment	$	538,251		$	259,437
Less: accumulated depreciation		(198,105	)		(182,208	)
Total property, plant and equipment, net	$	340,146		$	77,229

Schedule of Timber and Timberlands

TIMBER AND TIMBERLANDS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Timber and timberlands	$	1,605,564	$	581,648
Logging roads		78,485		72,828
Total timber and timberlands, net	$	1,684,049	$	654,476

Schedule of Other Long-term Assets

OTHER LONG-TERM ASSETS

(Dollars in thousands)	September 30, 2018		December 31, 2017
Mineral rights	$	5,882	$	—
Credit facility issuance costs		2,551		1,097
Interest rate swaps		3,392		1,156
Restricted cash		3,708		—
Investment in company owned life insurance (COLI)		2,741		1,996
Deferred real estate development costs		2,487		2,565
Other		2,935		1,457
Total other long-term assets	$	23,696	$	8,271

Schedule of Accounts Payable and Accrued Liabilities

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

(Dollars in thousands)	September 30, 2018		December 31, 2017
Accrued payroll and benefits	$	19,980	$	18,110
Accounts payable		18,114		9,361
Accrued interest		10,078		6,385
Accrued taxes		9,868		5,103
Avery Landing accrual (see Note 15: Commitments and Contingencies)		—		6,000
Other current liabilities		22,218		10,242
Total accounts payable and accrued liabilities	$	80,258	$	55,201

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Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instrument Detail [Abstract]

Fair Values of Derivative Instruments

The following table presents the gross fair values of derivative instruments on our Condensed Consolidated Balance Sheets:

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Location	September 30, 2018		December 31, 2017		Location	September 30, 2018		December 31, 2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts	Other assets, current	$	—	$	13		$	—	$	—
Derivatives designated in cash flow hedging relationships:
Interest rate contracts	Other assets, non-current	$	3,392	$	1,156		$	—	$	—

Effect of Derivatives on Consolidated Statements of Income

The following table details the effect of derivatives on our Consolidated Statements of Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	Location	2018			2017			2018			2017
Derivatives designated in fair value hedging relationships:
Interest rate contracts
Realized gain (loss) on interest rate contracts1	Interest expense	$	(52	)	$	76		$	(138	)	$	366
Derivatives designated in cash flow hedging relationships:
Interest rate contracts
Gain (loss) recognized in other comprehensive income, net of tax		$	1,330		$	(30	)	$	1,394		$	(258	)
Loss reclassified from accumulated other comprehensive income1	Interest expense	$	(261	)	$	(30	)	$	(456	)	$	(121	)
Derivatives not designated as hedging instruments:
Lumber price contracts
Realized gain on lumber price swap		$	—		$	986		$	—		$	986
Unrealized gain (loss) on lumber price swap	Gain (loss) on lumber price swap	$	—		$	(3,067	)	$	—		$	199
Net gain (loss) on lumber price contracts		$	—		$	(2,081	)	$	—		$	1,185
Interest expense, net		$	10,109		$	7,336		$	25,125		$	19,654

¹ Realized gain (loss) on hedging instruments consist of net cash settlements and interest accruals on interest rate swaps during the periods. Net cash settlements are included in the supplemental cash flow information within interest, net of amounts capitalized in the Condensed Consolidated Statements of Cash Flows.

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Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instrument Detail [Abstract]

Estimated Fair Value of Financial Instruments

The following table presents the estimated fair values of our financial instruments:

	September 30, 2018						December 31, 2017
(Dollars in thousands)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Cash, cash equivalents and restricted cash (Level 1)	$	141,243		$	141,243		$	120,457		$	120,457
Derivative assets related to interest rate swaps (Level 2)	$	3,392		$	3,392		$	1,169		$	1,169
Long-term debt, including current portion (Level 2):
Term loans	$	(539,007	)	$	(536,158	)	$	(343,500	)	$	(345,222	)
Senior notes		(149,721	)		(156,375	)		(149,528	)		(161,063	)
Revenue bonds		(94,735	)		(93,539	)		(65,735	)		(63,967	)
Medium-term notes		(3,000	)		(3,456	)		(17,250	)		(18,227	)
Total long-term debt1	$	(786,463	)	$	(789,528	)	$	(576,013	)	$	(588,479	)
Company owned life insurance asset (COLI) (Level 3)	$	2,741		$	2,741		$	1,996		$	1,996

¹ The carrying amount of long-term debt includes principal and unamortized discounts.

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Pension and Other Postretirement Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2018

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Components of Net Periodic Cost (Benefit)

The following tables detail the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefits (OPEB):

	Three Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	2,181		$	1,688		$	99		$	3
Interest cost		4,344			4,024			391			316
Expected return on plan assets		(5,095	)		(4,601	)		—			—
Amortization of prior service cost (credit)		46			72			(2,219	)		(2,219	)
Amortization of actuarial loss		4,148			3,621			327			384
Net periodic cost (benefit)	$	5,624		$	4,804		$	(1,402	)	$	(1,516	)
	Nine Months Ended September 30,
	Pension						OPEB
(Dollars in thousands)	2018			2017			2018			2017
Service cost	$	6,272		$	5,065		$	242		$	10
Interest cost		12,648			12,072			1,091			947
Expected return on plan assets		(14,938	)		(13,805	)		—			—
Amortization of prior service cost (credit)		139			216			(6,658	)		(6,658	)
Amortization of actuarial loss		12,442			10,863			983			1,153
Net periodic cost (benefit)	$	16,563		$	14,411		$	(4,342	)	$	(4,548	)

Schedule of Pension and OPEB Changes in Accumulated Other Comprehensive Loss

The following tables detail the pension and OPEB changes in accumulated other comprehensive loss on our Condensed Consolidated Balance Sheets, net of tax:

	Three Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2018	$	118,191		$	(2,627	)	$	115,564
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(34	)		1,642			1,608
Actuarial loss		(3,069	)		(242	)		(3,311	)
Total reclassification for the period		(3,103	)		1,400			(1,703	)
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Three Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at June 30, 2017	$	116,121		$	(6,943	)	$	109,178
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(44	)		1,353			1,309
Actuarial loss		(2,209	)		(234	)		(2,443	)
Total reclassification for the period		(2,253	)		1,119			(1,134	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

	Nine Months Ended September 30, 2018
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2017	$	100,611		$	(5,055	)	$	95,556
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(103	)		4,927			4,824
Actuarial loss		(9,207	)		(727	)		(9,934	)
Total reclassification for the period		(9,310	)		4,200			(5,110	)
Amortization reclassified from AOCL2		23,787			(372	)		23,415
Balance at September 30, 2018	$	115,088		$	(1,227	)	$	113,861
	Nine Months Ended September 30, 2017
(Dollars in thousands)	Pension			OPEB			Total
Balance at December 31, 2016	$	120,627		$	(9,182	)	$	111,445
Amortization of defined benefit items, net of tax:1
Prior service credit (cost)		(132	)		4,061			3,929
Actuarial loss		(6,627	)		(703	)		(7,330	)
Total reclassification for the period		(6,759	)		3,358			(3,401	)
Balance at September 30, 2017	$	113,868		$	(5,824	)	$	108,044

¹Amortization of prior service credit (cost) and amortization of actuarial loss are included in the computation of net periodic cost (benefit).

² See Note 2: Recent Accounting Pronouncements discussing the $23.3 million reclassification from AOCL to accumulated deficit.

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Components of Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Changes in Accumulated Other Comprehensive Loss

The following table details the changes in our accumulated other comprehensive loss (AOCL) on our Condensed Consolidated Balance Sheets for the nine months ended September 30, 2018, net of tax.

(Dollars in thousands)	Gains and losses on cash flow hedge			Pension Plans			OPEB			Total
Balance at December 31, 2017	$	(705	)	$	100,611		$	(5,055	)	$	94,851
Amounts arising during the period		(1,394	)		(9,310	)		4,200			(6,504	)
Amounts reclassified from AOCL to interest expense		(456	)		—			—			(456	)
Amounts reclassified from AOCL to accumulated deficit		(150	)		23,787			(372	)		23,265
Net change		(2,000	)		14,477			3,828			16,305
Balance at September 30, 2018	$	(2,705	)	$	115,088		$	(1,227	)	$	111,156

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Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Share Based Compensation [Abstract]

Details of Equity-Based Compensation Expense and Related Income Tax Benefit

The following table details equity-based compensation expense and the related income tax benefit:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2018		2017		2018		2017
Employee equity-based compensation expense:
Performance shares	$	1,074	$	905	$	3,084	$	2,678
Restricted stock units		536		283		1,470		858
Accelerated share-based termination benefits in connection with the merger		3		—		1,767		—
Total employee equity-based compensation expense	$	1,613	$	1,188	$	6,321	$	3,536
Deferred compensation stock equivalent units expense	$	16	$	166	$	197	$	488
Total tax benefit recognized for share-based expense	$	74	$	95	$	258	$	284

Fair Value of Performance Share Awards

The following table presents the key inputs used in the Monte Carlo simulation to calculate the fair value of the performance share awards in 2018 and 2017:

	Nine Months Ended September 30,
	2018			2017
Stock price as of valuation date	$	54.00		$	43.60
Risk-free rate		2.46	%		1.61	%
Expected volatility		23.74	%		24.22	%
Expected dividends		2.96	%		3.44	%
Expected term (years)		3.00			3.00
Fair value	$	75.37		$	53.85

Summary of Outstanding Performance Share Awards

The following table summarizes outstanding performance share awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		200,631		$	39.19
Granted		67,747		$	75.37
Forfeited		(5,082	)	$	47.90
Unvested shares outstanding at September 30, 2018		263,296		$	48.33	$	10,782

Summary of Outstanding RSU Awards

The following table summarizes outstanding RSU awards as of September 30, 2018 and changes during the nine months ended September 30, 2018:

(Dollars in thousands, except grant date fair value)	Shares			Weighted-Avg. Grant Date Fair Value		Aggregate Intrinsic Value
Unvested shares outstanding at December 31, 2017		67,871		$	32.87
Granted		43,693		$	51.54
Vested		(1,000	)	$	42.92
Forfeited		(3,694	)	$	45.36
Unvested shares outstanding at September 30, 2018		106,870		$	39.98	$	4,376

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Merger, Integration and Other Costs (Tables)

9 Months Ended

Sep. 30, 2018

Merger Integration And Other Costs [Abstract]

Summary of Merger and Restructuring Costs

(Dollars in thousands)	For the Three Months Ended September 30, 2018		For the Nine Months Ended September 30, 2018
Merger costs	$	892	$	11,515
Restructuring costs:
Termination benefits		—		8,782
Professional services		23		678
Other		57		270
		80		9,730
Total merger and restructuring costs	$	972	$	21,245

.

Summary of Changes in Accrued Severance Related to Restructuring

Changes in accrued severance related to restructuring were as follows:

(Dollars in thousands)
Accrued severance as of December 31, 2017	$	—
Charges		8,782
Payments		(8,375	)
Accrued severance as of September 30, 2018	$	407

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary of Information by Business Segment

The following table summarizes information on revenues, Adjusted EBITDDA, depreciation, depletion and amortization and basis of real estate sold for each of the company’s reportable segments and includes a reconciliation of total Adjusted EBITDDA to income before income taxes:

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2018			2017			2018			2017
Revenues:
Resource	$	111,421		$	94,705		$	280,438		$	202,397
Wood Products		199,025			116,487			532,425			326,608
Real Estate		11,233			3,282			38,219			25,922
		321,679			214,474			851,082			554,927
Intersegment Resource revenues1		(32,480	)		(24,033	)		(93,753	)		(51,576	)
Consolidated revenues	$	289,199		$	190,441		$	757,329		$	503,351
Adjusted EBITDDA:
Resource	$	58,680		$	48,034		$	140,068		$	91,200
Wood Products		46,446			24,395			126,962			58,660
Real Estate		7,467			2,094			27,769			22,333
Corporate		(8,989	)		(9,108	)		(28,969	)		(25,809	)
Eliminations and adjustments		(1,794	)		(3,180	)		(5,080	)		(1,152	)
Total Adjusted EBITDDA		101,810			62,235			260,750			145,232
Basis of real estate sold		(4,248	)		(579	)		(10,673	)		(6,351	)
Depreciation, depletion and amortization		(18,836	)		(8,196	)		(51,982	)		(20,796	)
Interest expense, net		(10,109	)		(7,336	)		(25,125	)		(19,654	)
Non-operating pension and other postretirement employee benefits		(1,942	)		(1,596	)		(5,707	)		(4,788	)
Gain (loss) on fixed assets		(12	)		—			(11	)		(16	)
Lumber price swap2		—			(3,066	)		—			199
Inventory purchase price adjustment in cost of goods sold3		—			—			(1,849	)		—
Environmental charges for Avery Landing		—			(4,978	)		—			(4,978	)
Deltic merger-related costs4		(972	)		(27	)		(21,245	)		(27	)
Income before income taxes	$	65,691		$	36,457		$	144,158		$	88,821
Depreciation, depletion and amortization:
Resource	$	12,730		$	6,207		$	35,974		$	14,865
Wood Products		5,827			1,821			15,250			5,487
Real Estate		81			—			198			1
Corporate		198			168			560			443
		18,836			8,196			51,982			20,796
Bond discounts and deferred loan fees5		609			369			1,703			1,112
Total depreciation, depletion and amortization	$	19,445		$	8,565		$	53,685		$	21,908
Basis of real estate sold:
Real Estate	$	4,267		$	618		$	10,886		$	6,474
Eliminations and adjustments		(19	)		(39	)		(213	)		(123	)
Total basis of real estate sold	$	4,248		$	579		$	10,673		$	6,351

¹ Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

² Includes change in unrealized (gain) loss and $1 million in cash settlements.

³ The effect on cost of goods sold for fair value adjustments to the carrying amounts of inventory acquired in business combinations.

⁴ For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

⁵ Bond discounts and deferred loan fees are reported within interest expense, net on the Condensed Consolidated Statement of Income.

Reconciliation of Business Segment Total Assets to Total Assets

A reconciliation of our business segment total assets to total assets in the CondensedConsolidatedBalance Sheet is as follows:

(Dollars in thousands)	September 30, 2018		December 31, 2017
Total assets:
Resource1	$	1,719,703	$	670,240
Wood Products		468,622		154,479
Real Estate2		89,190		—
		2,277,515		824,719
Corporate		135,556		128,360
Total consolidated assets	$	2,413,071	$	953,079

¹        We do not report rural real estate separate from Resource as we do not report these assets separately to management.

²          Real Estate assets primarily consist of real estate development acquired with the Deltic merger.

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Recent Accounting Pronouncements (Narrative) (Details) - USD ($)			3 Months Ended		9 Months Ended
		Jan. 01, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in income before taxes			$ 65,691,000	$ 36,457,000	$ 144,158,000	$ 88,821,000
Restricted cash included in other long-term assets	[1]		$ 3,708,000		$ 3,708,000
Restricted Cash and Cash Equivalents, Noncurrent, Asset, Statement of Financial Position [Extensible List]			us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Operating lease description					we have operating leases covering office space, equipment and vehicles expiring at various dates through 2033.
Operating leases undiscounted cash flows							$ 14,400,000
Accounting Standards Update (ASU) No. 2014-09 [Member] | Effect of Change [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Adjustment to accumulated deficit upon adoption of new accounting standards			$ 0		$ 0
ASU No. 2017-07 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in income before taxes				$ 0		$ 0
ASU No. 2016-16 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cumulative-effect adjustment to accumulated deficit		$ 1,300,000
ASU No. 2016-18 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Restricted cash included in other long-term assets			$ 3,700,000		$ 3,700,000
Restricted Cash and Cash Equivalents, Noncurrent, Asset, Statement of Financial Position [Extensible List]			us-gaap:OtherAssetsNoncurrent		us-gaap:OtherAssetsNoncurrent
ASU No. 2018-2 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Increase in accumulated other comprehensive loss due to change in comprehensive income reporting					$ 23,300,000

[1] Amounts included in restricted cash represent proceeds held by a qualified intermediary that are intended to be reinvested in timber and timberlands.

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Recent Accounting Pronouncements (Summary of Adjustments Made to Condensed Consolidated Statements of Income Due to Adoption of New Accounting Standards) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating income	$ 77,742	$ 45,389	$ 174,990	$ 113,263
ASU No. 2017-07 [Member] | Previously Reported [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating income		43,793		108,475
ASU No. 2017-07 [Member] | Effect of Change [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating income		$ 1,596		$ 4,788

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Merger with Deltic (Narrative) (Details)					3 Months Ended		9 Months Ended
		Aug. 30, 2018 USD ($)	Feb. 20, 2018 USD ($) a Sawmill shares	Feb. 19, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) shares	Sep. 30, 2017 USD ($)	Mar. 31, 2018 USD ($)
Business Acquisition [Line Items]
Number of share exchaged under agreement	[1]		180.00%
Distribution payable					$ 222,000,000		$ 222,000,000
Consulting agreement period							2 years
Business combination recorded merger costs									$ 1,850,000
Merger-related costs	[2]				972,000	$ 27,000	$ 21,245,000	$ 27,000
Number of shares issued upon merger | shares			21,981,128
Mineral rights			$ 6,236,000
Other long-term assets			3,556,000
Real estate held for development and sale			(77,000,000)
Property, plant and equipment			(260,769,000)
Timber and timberlands			1,060,913,000
Accounts payable and accrued liabilities			16,022,000
Depreciation, depletion and amortization					19,445,000	$ 8,565,000	53,685,000	$ 21,908,000
Measurement Period Adjustment [Member]
Business Acquisition [Line Items]
Mineral rights			6,236,000
Other long-term assets			1,546,000
Real estate held for development and sale			2,000,000
Property, plant and equipment			5,132,000
Timber and timberlands			913,000
Accounts payable and accrued liabilities			$ 3,418,000
Depreciation, depletion and amortization					0		200,000
Deltic [Member]
Business Acquisition [Line Items]
Acres of timberland | a			530,000
Number of sawmills | Sawmill			2
Area of diversified timberland base after merger | a			2,000,000
Number of share exchaged under agreement			180.00%
Non-recurring merger-related costs				$ 5,400,000	$ 1,000,000		$ 26,700,000
Number of shares issued upon merger | shares			22,000,000				22,000,000
Deltic [Member] | Special Distribution [Member]
Business Acquisition [Line Items]
Distribution payable		$ 222,000,000
Distribution, date to be paid		Nov. 15, 2018
Distribution, date of record		Sep. 27, 2018
Distribution, date of declared		Aug. 30, 2018
Percentage of total distribution limited to stockholders		80.00%			20.00%		20.00%
Business combination, estimated shares settle in non cash amount of liability | shares							4,200,000
Deltic [Member] | Special Distribution [Member] | Maximum [Member]
Business Acquisition [Line Items]
Cash payments limited to stockholders							$ 44,400,000
Deltic [Member] | Arkansas [Member]
Business Acquisition [Line Items]
Area of diversified timberland base after merger | a			930,000

[1] Exchange ratio per the merger agreement.

[2] For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

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Merger with Deltic (Summary of Total Consideration Transferred in Merger) (Details) $ / shares in Units, $ in Thousands	Feb. 20, 2018 USD ($) $ / shares shares
Business Acquisition [Line Items]
Exchange ratio	180.00%	[1]
Potlatch shares issued | shares	21,981,128
Price per Potlatch common share | $ / shares	$ 51.95	[2]
Aggregate value of Potlatch common shares issued | $	$ 1,141,920
Cash paid in lieu of fractional shares | $	14
Fair value of stock options and RSUs | $	841	[3]
Consideration transferred | $	$ 1,142,775
Deltic [Member]
Business Acquisition [Line Items]
Number of shares of Deltic common stock outstanding | shares	12,121,223	[4]
Number of Deltic performance awards | shares	90,515	[5]
Number of shares of common stock outstanding and performance awards | shares	12,211,738

[1] Exchange ratio per the merger agreement.

[2] Closing price of Potlatch common shares on February 20, 2018.

[3] Fair value of Deltic stock options for pre-combination services rendered that vested upon closing of the merger, as well as RSUs for pre-combination services rendered.

[4] Number of shares of Deltic common stock issued and outstanding as of February 20, 2018, net of fractional shares.

[5] Number of shares of Deltic performance awards for pre-combination services rendered that vested upon closing of the merger.

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Merger with Deltic (Summary of Revenue and Income Before Income Taxes From Acquired Deltic Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Net sales	$ 289,199	$ 190,441	$ 757,329	$ 503,351
Income before income taxes	65,691	$ 36,457	144,158	$ 88,821
Deltic [Member]
Business Acquisition [Line Items]
Net sales	83,385		192,244
Income before income taxes	$ 17,180		$ 25,869

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Merger with Deltic (Summary of Unaudited Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Combinations [Abstract]
Net sales	$ 289,199	$ 252,097	$ 795,992	$ 673,575
Net earnings attributable to PotlatchDeltic common shareholders	$ 61,327	$ 30,099	$ 142,314	$ 63,862
Basic earnings per share attributable to PotlatchDeltic common Shareholders	$ 0.91	$ 0.44	$ 2.13	$ 0.95
Diluted earnings per share attributable to PotlatchDeltic common shareholders	$ 0.91	$ 0.44	$ 2.12	$ 0.95

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Merger with Deltic (Summary of Fair Value Measurements of Assets Acquired and Liabilities Assumed) (Details) $ in Thousands	Feb. 20, 2018 USD ($)
ASSETS
Cash and cash equivalents	$ 3,419
Customer receivables, net	12,709
Inventories	17,316
Other current assets	8,800
Real estate held for development and sale	77,000
Property, plant and equipment	260,769
Timber and timberlands	1,060,913
Mineral rights	6,236
Trade name and customer relationships intangibles	19,500
Other long-term assets	3,556
Total assets acquired	1,470,218
LIABILITIES
Accounts payable and accrued liabilities	16,022
Current portion of pension and other postretirement employee benefits	754
Long-term debt	229,968
Pension and other postretirement employee benefits	36,155
Deferred tax liabilities, net	43,608
Other long-term liabilities	936
Total liabilities assumed	327,443
Net assets acquired	1,142,775
Previously Reported [Member]
ASSETS
Cash and cash equivalents	3,419
Customer receivables, net	12,709
Inventories	17,316
Other current assets	8,276
Real estate held for development and sale	79,000
Property, plant and equipment	265,901
Timber and timberlands	1,060,000
Trade name and customer relationships intangibles	19,000
Other long-term assets	2,010
Total assets acquired	1,467,631
LIABILITIES
Accounts payable and accrued liabilities	12,604
Current portion of pension and other postretirement employee benefits	754
Long-term debt	229,968
Pension and other postretirement employee benefits	36,155
Deferred tax liabilities, net	44,439
Other long-term liabilities	936
Total liabilities assumed	324,856
Net assets acquired	1,142,775
Measurement Period Adjustment [Member]
ASSETS
Other current assets	524
Real estate held for development and sale	(2,000)
Property, plant and equipment	(5,132)
Timber and timberlands	913
Mineral rights	6,236
Trade name and customer relationships intangibles	500
Other long-term assets	1,546
Total assets acquired	2,587
LIABILITIES
Accounts payable and accrued liabilities	3,418
Deferred tax liabilities, net	(831)
Total liabilities assumed	$ 2,587

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Earnings per Share (Reconciliation of Number of Shares Used in Calculating Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings per Share [Line Items]
Net income	$ 60,336	$ 33,700	$ 121,081	$ 74,865
Basic weighted-average shares outstanding	62,985,517	40,829,399	58,765,381	40,814,135
Diluted weighted-average shares outstanding	64,721,657	41,250,457	59,542,200	41,182,795
Basic net income per share	$ 0.96	$ 0.83	$ 2.06	$ 1.83
Diluted net income per share	$ 0.93	$ 0.82	$ 2.03	$ 1.82
Performance shares [Member]
Earnings per Share [Line Items]
Incremental shares	269,998	378,149	262,648	331,082
Restricted stock units [Member]
Earnings per Share [Line Items]
Incremental shares	37,535	42,909	32,736	37,578
Stock portion of earnings and profits distribution [Member]
Earnings per Share [Line Items]
Incremental shares	1,428,607		481,435

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Earnings per Share (Narrative) (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 30, 2018	Feb. 20, 2018	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of shares issued upon merger		21,981,128
Distribution payable			$ 222,000	$ 222,000		$ 222,000
Total anti-dilutive shares excluded from the calculation (in shares)				15,966	0	38,320	167
Deltic [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of shares issued upon merger		22,000,000				22,000,000
Deltic [Member] | Special Distribution [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Distribution payable	$ 222,000
Percentage of stock portion of special distribution	80.00%		20.00%	20.00%		20.00%
Business combination, estimated shares settle in non cash amount of liability						4,200,000
Volume weighted average price common stock trading days			3 days
Distribution, date of declared	Aug. 30, 2018
Distribution, date to be paid	Nov. 15, 2018

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Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Revenue Recognition [Line Items]
Contract liabilities related to hunting lease rights	$ 4.7	$ 1.7
Maximum [Member]
Revenue Recognition [Line Items]
Unsatisfied contracts are expected to be satisfied	1 year
Contractual rates due from customers	1 month

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Revenue Recognition (Summary of Revenues by Major Product) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue Recognition [Line Items]
Revenues		$ 289,199	$ 190,441	$ 757,329	$ 503,351
Operating Segments [Member]
Revenue Recognition [Line Items]
Revenues		321,679	214,474	851,082	554,927
Intersegment Eliminations [Member]
Revenue Recognition [Line Items]
Revenues	[1]	(32,480)	(24,033)	(93,753)	(51,576)
Resource [Member] | Operating Segments [Member]
Revenue Recognition [Line Items]
Revenues		111,421	94,705	280,438	202,397
Resource [Member] | Operating Segments [Member] | Northern Region [Member]
Revenue Recognition [Line Items]
Revenues		72,037	70,274	174,931	144,712
Resource [Member] | Operating Segments [Member] | Northern Region [Member] | Sawlogs [Member]
Revenue Recognition [Line Items]
Revenues		69,658	68,699	168,869	139,043
Resource [Member] | Operating Segments [Member] | Northern Region [Member] | Pulpwood [Member]
Revenue Recognition [Line Items]
Revenues		1,575	1,272	4,654	4,718
Resource [Member] | Operating Segments [Member] | Northern Region [Member] | Stumpage [Member]
Revenue Recognition [Line Items]
Revenues		39	11	175	153
Resource [Member] | Operating Segments [Member] | Northern Region [Member] | Other [Member]
Revenue Recognition [Line Items]
Revenues		765	292	1,233	798
Resource [Member] | Operating Segments [Member] | Southern Region [Member]
Revenue Recognition [Line Items]
Revenues		39,384	24,431	105,507	57,685
Resource [Member] | Operating Segments [Member] | Southern Region [Member] | Sawlogs [Member]
Revenue Recognition [Line Items]
Revenues		21,974	13,314	61,194	29,547
Resource [Member] | Operating Segments [Member] | Southern Region [Member] | Pulpwood [Member]
Revenue Recognition [Line Items]
Revenues		13,700	9,938	36,138	24,892
Resource [Member] | Operating Segments [Member] | Southern Region [Member] | Stumpage [Member]
Revenue Recognition [Line Items]
Revenues		653	191	2,106	420
Resource [Member] | Operating Segments [Member] | Southern Region [Member] | Other [Member]
Revenue Recognition [Line Items]
Revenues		3,057	988	6,069	2,826
Wood Products [Member] | Operating Segments [Member]
Revenue Recognition [Line Items]
Revenues		199,025	116,487	532,425	326,608
Wood Products [Member] | Operating Segments [Member] | Lumber [Member]
Revenue Recognition [Line Items]
Revenues		138,281	84,233	367,062	230,807
Wood Products [Member] | Operating Segments [Member] | Panels [Member]
Revenue Recognition [Line Items]
Revenues		36,655	17,945	106,785	54,923
Wood Products [Member] | Operating Segments [Member] | Residuals [Member]
Revenue Recognition [Line Items]
Revenues		24,089	14,309	58,578	40,878
Real Estate Segment [Member] | Operating Segments [Member]
Revenue Recognition [Line Items]
Revenues		11,233	3,282	38,219	25,922
Real Estate Segment [Member] | Operating Segments [Member] | Rural Real Estate [Member]
Revenue Recognition [Line Items]
Revenues		8,238	$ 3,282	29,740	$ 25,922
Real Estate Segment [Member] | Operating Segments [Member] | Development Real Estate [Member]
Revenue Recognition [Line Items]
Revenues		1,287		4,249
Real Estate Segment [Member] | Operating Segments [Member] | Other [Member]
Revenue Recognition [Line Items]
Revenues		$ 1,708		$ 4,230

[1] Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

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Certain Balance Sheet Components (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Logs	$ 22,096	$ 20,133
Lumber, panels and veneer	38,067	20,889
Materials and supplies	13,701	9,110
Total inventories	$ 73,864	$ 50,132

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Certain Balance Sheet Components (Schedule of Other Current Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Assets [Abstract]
Rural real estate held for sale	$ 9,045	$ 7,721
Taxes receivable	3,865
Prepaid expenses	3,965	2,862
Other receivables	2,113	882
Interest rate swaps		13
Total other current assets	$ 18,988	$ 11,478

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Certain Balance Sheet Components (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Property, plant and equipment	$ 538,251	$ 259,437
Less: accumulated depreciation	(198,105)	(182,208)
Total property, plant and equipment, net	$ 340,146	$ 77,229

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Certain Balance Sheet Components (Schedule of Timber and Timberlands) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Timber And Timberlands [Abstract]
Timber and timberlands	$ 1,605,564	$ 581,648
Logging roads	78,485	72,828
Total timber and timberlands, net	$ 1,684,049	$ 654,476

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Certain Balance Sheet Components (Schedule of Other Long-term Assets) (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Other Assets Noncurrent [Abstract]
Mineral rights		$ 5,882
Credit facility issuance costs		2,551	$ 1,097
Interest rate swaps		3,392	1,156
Restricted cash	[1]	3,708
Investment in company owned life insurance (COLI)		2,741	1,996
Deferred real estate development costs		2,487	2,565
Other		2,935	1,457
Total other long-term assets		$ 23,696	$ 8,271

[1] Amounts included in restricted cash represent proceeds held by a qualified intermediary that are intended to be reinvested in timber and timberlands.

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Certain Balance Sheet Components (Schedule of Accounts Payable and Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts Payable And Accrued Liabilities Current [Abstract]
Accrued payroll and benefits	$ 19,980	$ 18,110
Accounts payable	18,114	9,361
Accrued interest	10,078	6,385
Accrued taxes	9,868	5,103
Avery Landing accrual (see Note 15: Commitments and Contingencies)		6,000
Other current liabilities	22,218	10,242
Total accounts payable and accrued liabilities	$ 80,258	$ 55,201

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Debt (Narrative) (Details)				3 Months Ended	9 Months Ended
	Mar. 22, 2018 USD ($)	Feb. 20, 2018 USD ($)	Feb. 14, 2018 USD ($)	Mar. 31, 2018 USD ($) Tranche	Sep. 30, 2018 USD ($) Tranche	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Repayment of credit facility					$ 100,000,000
Unused Capacity, Commitment Fee Percentage					0.20%
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
Additional Applicable Rate Added to Base Rate, Minimum					1.30%
Federal Fund Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.50%
Base Rate [Member]
Debt Instrument [Line Items]
Additional Applicable Rate Added to Base Rate, Minimum					0.30%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.70%
Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.70%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.875%
Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.00%
Line of Credit [Member]
Debt Instrument [Line Items]
Interest coverage ratio			300.00%
Line of Credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio			40.00%
Line of Credit [Member] | Deltic [Member]
Debt Instrument [Line Items]
Repayment of credit facility					$ 100,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding					100,000,000
Maximum Borrowing Capacity			$ 380,000,000
Amount available to increase borrowing capacity			420,000,000
Revolving line of credit borrowings					0
Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding					1,000,000
Maximum Borrowing Capacity			$ 75,000,000
Swing Line Loan [Member]
Debt Instrument [Line Items]
Maximum Borrowing Capacity						$ 25,000,000
Revenue Bonds [Member] | Union County, Arkansas [Member] | Deltic [Member]
Debt Instrument [Line Items]
Debt instrument maturity date		Oct. 01, 2027
Revenue Bonds [Member] | Union County, Arkansas [Member] | Irrevocable Standby Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of credit		$ 29,700,000
Letter of credit expiration date		Apr. 13, 2023
Revenue Bonds [Member] | Union County, Arkansas [Member] | Letter of Credit [Member] | Deltic [Member]
Debt Instrument [Line Items]
Debt assumed		$ 29,000,000
Medium Term Notes [Member]
Debt Instrument [Line Items]
Repayments of debt					14,300,000
Long-term Debt, Gross					$ 3,000,000
Interest Rate					8.75%
Debt instrument maturity date					2022
Term Loans [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 100,000,000				$ 100,000,000
Interest coverage ratio	300.00%
Number of Tranches Included in Term Loan | Tranche				3	0
Term Loans [Member] | Term Loan, Tranche One [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross				$ 100,000,000
Interest Rate				4.05%
Debt instrument maturity date				2025
Term Loans [Member] | Term Loan, Tranche Two [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross				$ 65,000,000
Interest Rate				4.80%
Debt instrument maturity date				2028
Term Loans [Member] | Term Loan, Tranche Two [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.95%
Term Loans [Member] | Term Loan, Tranche Three [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross				$ 35,000,000
Interest Rate				4.80%
Debt instrument maturity date				2028
Term Loans [Member] | Term Loan, Tranche Three [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.95%
Term Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio	40.00%
Term Loans [Member] | Deltic [Member]
Debt Instrument [Line Items]
Repayment of credit facility	$ 106,000,000
Term Loans [Member] | Deltic [Member] | Debt Assumed [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 100,000,000

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Derivative Instruments (Narrative) (Details) $ in Millions	1 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Sep. 30, 2018 USD ($) Derivative	Dec. 31, 2017 USD ($)	Mar. 31, 2018 USD ($) Derivative
Derivatives Fair Value [Line Items]
Net losses expected to be reclassified into earnings in the next twelve months		$ 0.1
Interest Rate Swaps [Member]
Derivatives Fair Value [Line Items]
Number of interest rate swap agreements | Derivative				3
Notional amounts				$ 14.3
Derivative original maturity date		Nov. 30, 2019
Interest expense over the next twelve months			$ 0.2
Interest Rate Swaps [Member] | Cash Flow Hedging [Member]
Derivatives Fair Value [Line Items]
Number of interest rate swap agreements | Derivative		4
Interest Rate Swaps [Member] | Senior notes [Member]
Derivatives Fair Value [Line Items]
Notional amounts associated with senior notes	$ 50.0		$ 50.0
Derivative, termination year	2017-12
Termination cost	$ 0.4

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Derivative Instruments (Fair Value of Derivative Instruments) (Details) - Designated as Hedging Instrument [Member] - Interest rate contracts [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value Hedging [Member] | Other Current Assets [Member]
Derivatives Fair Value [Line Items]
Asset Derivatives, Fair Value		$ 13
Cash Flow Hedging [Member] | Other Noncurrent Assets [Member]
Derivatives Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 3,392	$ 1,156

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Derivative Instruments (Effect of Derivatives on Consolidated Statements of Income (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on lumber price swap	[1]		$ (3,066)		$ 199
Interest expense, net		$ 10,109	7,336	$ 25,125	19,654
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Interest rate contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss) on interest rate contracts	[2]	(52)	76	(138)	366
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest rate contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in other comprehensive income, net of tax		1,330	(30)	1,394	(258)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest rate contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from accumulated other comprehensive income	[2]	$ (261)	(30)	$ (456)	(121)
Derivatives not designated as Hedging Instrument [Member] | Lumber Price Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain on lumber price swap			986		986
Net gain (loss) on lumber price contracts			(2,081)		1,185
Derivatives not designated as Hedging Instrument [Member] | Lumber Price Contracts [Member] | Gain (Loss) on Lumber Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on lumber price swap			$ (3,067)		$ 199

[1] Includes change in unrealized (gain) loss and $1 million in cash settlements.

[2] Realized gain (loss) on hedging instruments consist of net cash settlements and interest accruals on interest rate swaps during the periods. Net cash settlements are included in the supplemental cash flow information within interest, net of amounts capitalized in the Condensed Consolidated Statements of Cash Flows

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Financial Instruments (Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Carrying Amount [Member] | Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash, cash equivalents and restricted cash		$ 141,243	$ 120,457
Carrying Amount [Member] | Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	(786,463)	(576,013)
Carrying Amount [Member] | Level 2 [Member] | Interest rate contracts [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets		3,392	1,169
Carrying Amount [Member] | Level 2 [Member] | Term Loans [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(539,007)	(343,500)
Carrying Amount [Member] | Level 2 [Member] | Senior notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(149,721)	(149,528)
Carrying Amount [Member] | Level 2 [Member] | Revenue bonds [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(94,735)	(65,735)
Carrying Amount [Member] | Level 2 [Member] | Medium-term notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(3,000)	(17,250)
Carrying Amount [Member] | Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Company owned life insurance asset (COLI)		2,741	1,996
Fair Value [Member] | Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash, cash equivalents and restricted cash		141,243	120,457
Fair Value [Member] | Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	(789,528)	(588,479)
Fair Value [Member] | Level 2 [Member] | Interest rate contracts [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets		3,392	1,169
Fair Value [Member] | Level 2 [Member] | Term Loans [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(536,158)	(345,222)
Fair Value [Member] | Level 2 [Member] | Senior notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(156,375)	(161,063)
Fair Value [Member] | Level 2 [Member] | Revenue bonds [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(93,539)	(63,967)
Fair Value [Member] | Level 2 [Member] | Medium-term notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, including current portion		(3,456)	(18,227)
Fair Value [Member] | Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Company owned life insurance asset (COLI)		$ 2,741	$ 1,996

[1] The carrying amount of long-term debt includes principal and unamortized discounts.

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Pension and Other Postretirement Employee Benefits (Components Of Net Periodic Cost (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2,181	$ 1,688	$ 6,272	$ 5,065
Interest cost	4,344	4,024	12,648	12,072
Expected return on plan assets	(5,095)	(4,601)	(14,938)	(13,805)
Amortization of prior service cost (credit)	46	72	139	216
Amortization of actuarial loss	4,148	3,621	12,442	10,863
Net periodic cost (benefit)	5,624	4,804	16,563	14,411
OPEB [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	99	3	242	10
Interest cost	391	316	1,091	947
Amortization of prior service cost (credit)	(2,219)	(2,219)	(6,658)	(6,658)
Amortization of actuarial loss	327	384	983	1,153
Net periodic cost (benefit)	$ (1,402)	$ (1,516)	$ (4,342)	$ (4,548)

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Pension and Other Postretirement Employee Benefits (Schedule of Pension and OPEB Changes in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income [Roll Forward]
AOCI at beginning of period		$ 115,564	$ 109,178	$ 95,556	$ 111,445
Prior service credit (cost)	[1]	1,608	1,309	4,824	3,929
Actuarial loss	[1]	(3,311)	(2,443)	(9,934)	(7,330)
Total reclassification for the period	[1]	(1,703)	(1,134)	(5,110)	(3,401)
Amortization reclassified from AOCL	[2]			23,415
AOCI at end of period		113,861	108,044	113,861	108,044
Pension Plans [Member]
Accumulated Other Comprehensive Income [Roll Forward]
AOCI at beginning of period		118,191	116,121	100,611	120,627
Prior service credit (cost)	[1]	(34)	(44)	(103)	(132)
Actuarial loss	[1]	(3,069)	(2,209)	(9,207)	(6,627)
Total reclassification for the period	[1]	(3,103)	(2,253)	(9,310)	(6,759)
Amortization reclassified from AOCL	[2]			23,787
AOCI at end of period		115,088	113,868	115,088	113,868
OPEB [Member]
Accumulated Other Comprehensive Income [Roll Forward]
AOCI at beginning of period		(2,627)	(6,943)	(5,055)	(9,182)
Prior service credit (cost)	[1]	1,642	1,353	4,927	4,061
Actuarial loss	[1]	(242)	(234)	(727)	(703)
Total reclassification for the period	[1]	1,400	1,119	4,200	3,358
Amortization reclassified from AOCL	[2]			(372)
AOCI at end of period		$ (1,227)	$ (5,824)	$ (1,227)	$ (5,824)

[1] Amortization of prior service credit (cost) and amortization of actuarial loss are included in the computation of net periodic cost (benefit).

[2] See Note 2: Recent Accounting Pronouncements discussing the $23.3 million reclassification from AOCL to accumulated deficit.

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Pension and Other Postretirement Employee Benefits (Narrative) (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Feb. 20, 2018
Defined Benefit Plan Disclosure [Line Items]
Amortization reclassified from AOCL	[1]	$ 23,415
Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Postretirement Benefits Payments		2,600	$ 2,600
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization reclassified from AOCL	[1]	23,787
Pension Plans [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets				$ 38,700
Projected benefit obligation				62,000
Contributions		52,100	5,300
Pension Plans [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation				62,000
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization reclassified from AOCL	[1]	(372)
Accumulated benefit obligation				$ 13,500
Supplemental Pension Plans [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions		1,300	$ 1,200
Voluntary Contributions [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions		44,000
Accumulated Deficit [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization reclassified from AOCL		$ 23,300

[1] See Note 2: Recent Accounting Pronouncements discussing the $23.3 million reclassification from AOCL to accumulated deficit.

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Components of Accumulated Other Comprehensive Loss (Changes in Accumulated Other Comprehensive Loss) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	$ (200,542)
Amounts arising during the period	(6,504)
Amounts reclassified from AOCL to interest expense	(456)
Amounts reclassified from AOCL to accumulated deficit	23,265
Net change	16,305
Balance at end of period	(1,179,069)
Gains and losses on cash flow hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(705)
Amounts arising during the period	(1,394)
Amounts reclassified from AOCL to interest expense	(456)
Amounts reclassified from AOCL to accumulated deficit	(150)
Net change	(2,000)
Balance at end of period	(2,705)
Pension and other postretirement employee benefits [Member] | Pension Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	100,611
Amounts arising during the period	(9,310)
Amounts reclassified from AOCL to accumulated deficit	23,787
Net change	14,477
Balance at end of period	115,088
Pension and other postretirement employee benefits [Member] | OPEB [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(5,055)
Amounts arising during the period	4,200
Amounts reclassified from AOCL to accumulated deficit	(372)
Net change	3,828
Balance at end of period	(1,227)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	94,851
Balance at end of period	$ 111,156

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Equity-Based Compensation (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Unit, Vested, Issuance Deferred	74,989	74,989
Qualifying terminations, recognition of expense | $	$ 3	$ 1,767
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares reserved for future issuance	146,502	146,502
Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost | $	$ 5,800	$ 5,800
Weighted average period (in years)		1 year
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost | $	$ 2,000	$ 2,000
Weighted average period (in years)		1 year
Replacement Restricted Stock Unit Awards [Member] | Deltic [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting terms		4 years
Qualifying terminations, accelerated vesting shares		35,000
Qualifying terminations, recognition of expense | $		$ 1,800
2005 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,600,000	1,600,000
2014 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,000,000	1,000,000
2005 and 2014 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	400,000	400,000
2002 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	250,000	250,000

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Equity-Based Compensation (Details of Equity-Based Compensation Expense and Related Income Tax Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee equity-based compensation expense	$ 1,613	$ 1,188	$ 6,321	$ 3,536
Accelerated share-based termination benefits in connection with the merger	3		1,767
Deferred compensation stock equivalent units expense	16	166	197	488
Total tax benefit recognized for share-based expense	74	95	258	284
Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee equity-based compensation expense	1,074	905	3,084	2,678
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee equity-based compensation expense	$ 536	$ 283	$ 1,470	$ 858

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Equity-Based Compensation (Fair Value of Performance Share Awards) (Details) - Performance Shares Awards [Member] - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price as of valuation date (in dollars per share)	$ 54.00	$ 43.60
Risk-free rate	2.46%	1.61%
Expected volatility	23.74%	24.22%
Expected dividends	2.96%	3.44%
Expected term (years)	3 years	3 years
Fair value	$ 75.37	$ 53.85

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Equity-Based Compensation (Summary Of Outstanding Performance Shares/Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Performance Shares Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested shares outstanding at December 31, Shares	200,631
Granted (in shares)	67,747
Forfeited (in shares)	(5,082)
Unvested shares outstanding at September 30, Shares	263,296
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested shares outstanding at December 31, Weighted Avg. Grant Date Fair Value (in dollars per share)	$ 39.19
Granted, Weighted Avg. Exercise Price (in dollars per share)	75.37	$ 53.85
Forfeited, Weighted Avg. Grant Date Fair Value (in dollars per share)	47.90
Unvested shares outstanding at September 30, Weighted Avg. Grant Date Fair Value (in dollars per share)	$ 48.33
Aggregate Intrinsic Value	$ 10,782
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested shares outstanding at December 31, Shares	67,871
Granted (in shares)	43,693
Vested (in shares)	(1,000)
Forfeited (in shares)	(3,694)
Unvested shares outstanding at September 30, Shares	106,870
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested shares outstanding at December 31, Weighted Avg. Grant Date Fair Value (in dollars per share)	$ 32.87
Granted, Weighted Avg. Exercise Price (in dollars per share)	51.54
Vested, Weighted Avg. Grant Date Fair Value (in dollars per share)	42.92
Forfeited, Weighted Avg. Grant Date Fair Value (in dollars per share)	45.36
Unvested shares outstanding at September 30, Weighted Avg. Grant Date Fair Value (in dollars per share)	$ 39.98
Aggregate Intrinsic Value	$ 4,376

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Merger, Integration and Other Costs (Summary of Merger and Restructuring Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Merger Integration And Other Costs [Abstract]
Merger costs		$ 892		$ 11,515
Restructuring costs:
Termination benefits				8,782
Professional services		23		678
Other		57		270
Total restructuring costs		80		9,730
Total merger and restructuring costs	[1]	$ 972	$ 27	$ 21,245	$ 27

[1] For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

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Merger, Integration and Other Costs (Summary of Changes in Accrued Severance Related to Restructuring) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Restructuring Cost And Reserve [Line Items]
Charges	$ 80	$ 9,730
Accrued Severance [Member]
Restructuring Cost And Reserve [Line Items]
Charges		8,782
Payments		(8,375)
Accrued severance as of September 30, 2018	$ 407	$ 407

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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Taxes [Line Items]
Statutory Federal Income Tax Rate			21.00%		35.00%
Decrease in effective tax rate	$ 3,900		$ 10,400
Income taxes	(5,355)	$ (2,757)	$ (23,077)	$ (13,956)
Pension Plans [Member] | Qualified Plan [Member]
Income Taxes [Line Items]
Income taxes	$ 5,300

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Commitments and Contingencies (Narrative) (Details) $ in Millions			3 Months Ended	9 Months Ended
	Apr. 10, 2018 USD ($)	Sep. 25, 2015 USD ($)	Mar. 31, 2018 Agreement	Sep. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Loss contingency, damages sought, value		$ 9.8
Number of tolling agreement with EPA and DOT | Agreement			6
Litigation settlement date				April 10, 2018
Litigation final settlement amount	$ 6.0

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Segment Information (Narrative) (Details)	9 Months Ended
	Sep. 30, 2018 Segment
Segment Reporting [Abstract]
Number of reportable segments	3

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Segment Information (Summary Of Information By Business Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Segment Revenues		$ 289,199	$ 190,441	$ 757,329	$ 503,351
Adjusted EBITDDA		101,810	62,235	260,750	145,232
Basis of real estate sold		4,248	579	10,673	6,351
Depreciation, depletion and amortization		18,836	8,196	51,982	20,796
Interest expense, net		(10,109)	(7,336)	(25,125)	(19,654)
Non-operating pension and other postretirement employee benefits		(1,942)	(1,596)	(5,707)	(4,788)
Gain (loss) on fixed assets		(12)		(11)	(16)
Lumber price swap	[1]		(3,066)		199
Environmental charges for Avery Landing			(4,978)		(4,978)
Deltic merger-related costs	[2]	(972)	(27)	(21,245)	(27)
Income before income taxes		65,691	36,457	144,158	88,821
Bond discounts and deferred loan fees	[3]	609	369	1,703	1,112
Depreciation, depletion and amortization		19,445	8,565	53,685	21,908
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Revenues		321,679	214,474	851,082	554,927
Depreciation, depletion and amortization		18,836	8,196	51,982	20,796
Operating Segments [Member] | Resource [Member]
Segment Reporting Information [Line Items]
Segment Revenues		111,421	94,705	280,438	202,397
Adjusted EBITDDA		58,680	48,034	140,068	91,200
Depreciation, depletion and amortization		12,730	6,207	35,974	14,865
Operating Segments [Member] | Wood Products [Member]
Segment Reporting Information [Line Items]
Segment Revenues		199,025	116,487	532,425	326,608
Adjusted EBITDDA		46,446	24,395	126,962	58,660
Depreciation, depletion and amortization		5,827	1,821	15,250	5,487
Operating Segments [Member] | Real Estate [Member]
Segment Reporting Information [Line Items]
Segment Revenues		11,233	3,282	38,219	25,922
Adjusted EBITDDA		7,467	2,094	27,769	22,333
Basis of real estate sold		4,267	618	10,886	6,474
Depreciation, depletion and amortization		81		198	1
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Segment Revenues	[4]	(32,480)	(24,033)	(93,753)	(51,576)
Adjusted EBITDDA		(1,794)	(3,180)	(5,080)	(1,152)
Basis of real estate sold		(19)	(39)	(213)	(123)
Corporate [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDDA		(8,989)	(9,108)	(28,969)	(25,809)
Depreciation, depletion and amortization		$ 198	$ 168	560	$ 443
Costs of Goods Sold [Member]
Segment Reporting Information [Line Items]
Inventory purchase price adjustment in cost of goods sold	[5]			$ (1,849)

[1] Includes change in unrealized (gain) loss and $1 million in cash settlements.

[2] For integration and restructuring costs related to the merger with Deltic see Note 13: Merger, Integration and Other Costs.

[3] Bond discounts and deferred loan fees are reported within interest expense, net on the Condensed Consolidated Statement of Income.

[4] Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.

[5] The effect on cost of goods sold for fair value adjustments to the carrying amounts of inventory acquired in business combinations.

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Segment Information (Summary Of Information By Business Segment) (Parenthetical) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting [Abstract]
Cash settlements on lumber price swap	$ 1	$ 1

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Segment Information (Reconciliation of Business Segment Total Assets to Total Assets) (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Segment Reporting Asset Reconciling Item [Line Items]
Assets		$ 2,413,071	$ 953,079
Operating Segments [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Assets		2,277,515	824,719
Operating Segments [Member] | Resource [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Assets	[1]	1,719,703	670,240
Operating Segments [Member] | Wood Products [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Assets		468,622	154,479
Operating Segments [Member] | Real Estate [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Assets	[2]	89,190
Corporate [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Assets		$ 135,556	$ 128,360

[1] We do not report rural real estate separate from Resource as we do not report these assets separately to management.

[2] Real Estate assets primarily consist of real estate development acquired with the Deltic merger.