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Summary of Significant Accounting Policies (Policies) | 9 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Use of Estimates [Policy Text Block] | The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of accounts receivable, inventories, goodwill, intangible assets, and other long-lived assets; legal contingencies; guarantee obligations; indemnifications; assumptions used in retirement, medical, and workers' compensation benefits; stock-based compensation; fair value measurements; income taxes; and vendor and customer rebates, among others. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. We adjust such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in these estimates resulting from continuing changes in the economic environment will be reflected in the consolidated financial statements in future periods.
Vendor Rebates and Allowances [Policy Text Block] | Rebates and allowances received from our vendors are recognized as a reduction of "Materials, labor, and other operating expenses (excluding depreciation)" when the product is sold, unless the rebates and allowances are linked to a specific incremental cost to sell a vendor's product. Amounts received from vendors that are linked to specific selling and distribution expenses are recognized as a reduction of "Selling and distribution expenses" in the period the expense is incurred. We also provide rebates to our customers and our customers' customers based on the volume of their purchases. We provide the rebates to increase the sell-through of our products. The rebates are recorded as a decrease in "Sales."
Lessee, Leases [Policy Text Block] | For purposes of determining straight-line rent expense, the lease term is calculated from the date we first take possession of the facility, including any periods of free rent and any renewal option periods we are reasonably assured of exercising.
Fair Value [Policy Text Block] | Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy under GAAP gives the highest priority to quoted market prices (Level 1) and the lowest priority to unobservable inputs (Level 3). In general, and where applicable, we use quoted prices in active markets for identical assets or liabilities to determine fair value (Level 1). If quoted prices in active markets for identical assets or liabilities are not available to determine fair value, we use quoted prices for similar assets and liabilities or inputs that are observable either directly or indirectly (Level 2). If quoted prices for identical or similar assets are not available or are unobservable, we may use internally developed valuation models, whose inputs include bid prices, and third-party valuations utilizing underlying asset assumptions (Level 3).
Financial Instruments [Policy Text Block] | Our financial instruments are cash and cash equivalents, accounts receivable, accounts payable, long-term debt, and interest rate swaps. Our cash is recorded at cost, which approximates fair value, and our cash equivalents are money market funds. As of September 30, 2017, and December 31, 2016, we held $131.5 million and $78.1 million, respectively, in money market funds that are measured at fair value on a recurring basis using Level 1 inputs. The recorded values of accounts receivable and accounts payable approximate fair values based on their short-term nature. At September 30, 2017, and December 31, 2016, the book value of our fixed-rate debt for each period was $350.0 million, and the fair value was estimated to be $367.5 million and $347.4 million, respectively. The difference between the book value and the fair value is derived from the difference between the period-end market interest rate and the stated rate of our fixed-rate, long-term debt. We estimated the fair value of our fixed-rate debt using quoted market prices of our debt in inactive markets (Level 2 inputs). The interest rate on our term loans is based on market conditions such as the London Interbank Offered Rate (LIBOR) or a base rate. Because the interest rate on the term loans is based on current market conditions, we believe that the estimated fair value of the outstanding balance on our term loans approximates book value. As discussed below, we also have interest rate swaps to mitigate our variable interest rate exposure, the fair value of which is measured based on Level 2 inputs.
Derivatives [Policy Text Block] | In accordance with our risk management strategy, we actively monitor our interest rate exposure and use derivative instruments from time to time to manage the related risk.
New and recently adopted accounting standards [Policy Text Block] | In May 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2017-09, Compensation—Stock Compensation (Topic 718) - Scope of Modification Accounting. This ASU amends the scope of modification accounting for share-based payment arrangements and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The guidance is effective prospectively for fiscal years beginning after December 15, 2017, and interim periods within that reporting period. Early adoption is permitted, including adoption in any interim period. We do not expect the adoption of this guidance to have a material effect on our financial statements. In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This ASU requires entities to present the service cost component of net periodic benefit cost in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net periodic benefit cost must be presented elsewhere in the income statement and outside of income from operations if that subtotal is presented. Entities will have to disclose the line(s) used to present the other components of net periodic benefit cost if the components are not presented separately in the income statement. The guidance on the income statement presentation of the components of net periodic benefit cost must be applied retrospectively. This new standard is effective for fiscal years beginning after December 15, 2017, and interim periods within that reporting period. We are currently evaluating the effect of this ASU on our financial statements; however, we expect the adoption of ASU 2017-07 to result in a change in our income from operations in an amount equal to the other components of net periodic pension cost, which will be offset by a corresponding change outside of income from operations. The components of the net periodic cost are shown in Note 7, Retirement and Benefit Plans. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU is intended to simplify the accounting for goodwill impairment by removing the requirement to perform a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which the reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. This new standard will be applied prospectively and is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted after January 1, 2017. We adopted this standard in first quarter of 2017 and it did not have a material effect on our financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force). This ASU is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. This new standard is effective for annual periods beginning after December 15, 2017, and interim periods within that reporting period. Early adoption is permitted, provided that all of the amendments are adopted in the same period. The guidance requires application using a retrospective transition method. We will adopt this standard in first quarter of 2018 and do not expect this guidance to have a material effect on our consolidated statements of cash flows. In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This ASU simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. We adopted this standard in the first quarter of 2017, under the modified retrospective method, with the cumulative effect of adoption recorded as an adjustment to 2017 beginning retained earnings. The new standard results in excess tax benefits and deficiencies on share-based transactions being recorded as income tax expense or benefit rather than in additional-paid-in-capital. In addition, excess tax benefits on share-based payments are now classified in the operating section of our consolidated statement of cash flows. Furthermore, we recorded an adjustment to beginning retained earnings of approximately $0.1 million as we have made an election to account for share-based award forfeitures as they occur, rather than making estimates of future forfeitures. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). This amendment requires a lessee to recognize substantially all leases (whether operating or finance leases) on the balance sheet as a right-of-use asset and an associated lease liability. Short-term leases of 12 months or less are excluded from this amendment. For leases defined as finance leases under the new standard, the lessee subsequently recognizes interest expense and amortization of the right-of-use asset, similar to accounting for capital leases under current GAAP. For leases defined as operating leases under the new standard, the lessee subsequently recognizes straight-line lease expense over the life of the lease. This new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The guidance is to be applied using a modified retrospective transition method with the option to elect a package of practical expedients. The adoption of this ASU will result in a significant increase to our balance sheet for lease liabilities and right-of-use assets, which has not yet been quantified. We are currently evaluating this and the other effects of this ASU on our financial statements. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. This ASU requires entities to measure most inventory "at the lower of cost or net realizable value," thereby simplifying the current guidance under which an entity must measure inventory at the lower of cost or market. The new standard is effective for annual and interim reporting periods beginning after December 15, 2016. The adoption of this standard in first quarter of 2017 did not have a material effect on our financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective and requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The guidance also requires additional disclosure to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue that is recognized. Furthermore, numerous updates were issued in 2016 that provide clarification on a number of specific issues. The new standard is effective for annual and interim reporting periods beginning after December 15, 2017 and we currently anticipate adopting it effective January 1, 2018. The standard permits the use of either the retrospective or modified retrospective (cumulative-effect) transition method. We currently anticipate adopting the standard using the modified retrospective method. As a result of our preliminary assessment, we do not anticipate a material impact on our revenue recognition practices. We are still in the process of evaluating the impact on our revenue disclosures, but anticipate additional required disclosure. We continue to evaluate the standard as well as additional changes, modifications or interpretations which may impact our preliminary conclusions.
Compensation Related Costs [Policy Text Block] | We record compensation expense over the awards' vesting period and account for share-based award forfeitures as they occur, rather than making estimates of future forfeitures. Any shares not vested are forfeited. We recognize stock awards with only service conditions on a straight-line basis over the requisite service period.
Segment Reporting, [Policy Text Block] | As of January 1, 2017, we operate our business using two reportable segments: Wood Products and Building Materials Distribution. Prior to January 1, 2017, we operated our business using three reportable segments: Wood Products, Building Materials Distribution, and Corporate and Other. This change is based on Corporate and Other no longer earning revenue as of January 1, 2017 and thus no longer meeting the definition of a reportable segment. Corporate and Other results are now presented as reconciling items to arrive at total net sales and operating income.

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- Definition Disclosure of accounting policy for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to employees, including equity-based arrangements; discloses methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18726-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f(1)) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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