Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	18. Fair Value Measurements The Company measures certain financial and non-financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. Fair value disclosures are reflected in a three-level hierarchy, maximizing the use of observable inputs and minimizing the use of unobservable inputs. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability on the measurement date. The three levels are defined as follows: •Level 1—inputs to the valuation methodology are quoted prices (unadjusted) for an identical asset or liability in an active market. •Level 2—inputs to the valuation methodology include quoted prices for a similar asset or liability in an active market or model-derived valuations in which all significant inputs are observable for substantially the full term of the asset or liability. •Level 3—inputs to the valuation methodology are unobservable and significant to the fair value measurement of the asset or liability. Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Cash Equivalents Certain assets and liabilities are measured at fair value on a recurring basis. The Company’s cash equivalents were measured at fair value at December 31, 2020 and December 31, 2019 based on quoted prices in active markets for identical assets. These inputs are classified as Level 1 within the valuation hierarchy. CMT Contingent Consideration In connection with the CMT acquisition, the Company entered into a contingent consideration arrangement that required us to make future payments through 2022 to The Cline Group based on future volume over a specified threshold, price and contract renewals. Prior to the termination of the related contract in 2020, the fair value of the contingent consideration was estimated based on a probability-weighted analysis using significant inputs that are not observable in the market, or Level 3 inputs. Due to the change in market and customer conditions in 2019, further described in Note 8, we decreased our forecasted projections, which were classified as Level 3 inputs. The decrease in forecasted projections, as well as a payment made in 2019, resulted in a reduction of the contingent consideration liability, primarily included in other deferred credits and liabilities on the Consolidated Balance Sheets, to zero at December 31, 2019 from $5.0 million at December 31, 2018. During 2018, volumes and improved volume projections resulted in an increase of $2.5 million to the fair value of the contingent consideration balance. Changes in fair value were recorded to costs of products sold and operating expenses on the Consolidated Statements of Operations during 2019 and 2018. Certain Financial Assets and Liabilities not Measured at Fair Value At December 31, 2020 and 2019, the fair value of the Company’s long-term debt was estimated to be $683.9 million and $776.1 million, respectively, compared to a carrying amount of $690.5 million and $800.5 million, respectively. These fair values were estimated by management based upon estimates of debt pricing provided by financial institutions which are considered Level 2 inputs.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.