Business and Basis of Presentation (Policies)	6 Months Ended
Business and Basis of Presentation (Policies)	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and Article 10 of Regulation S-X. Accordingly, they do not include all the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring adjustments necessary for a fair presentation with respect to the interim financial statements, have been included. The results of operations for interim periods are not necessarily indicative of the results for full fiscal years. For further information, refer to the consolidated financial statements and footnotes thereto for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 27, 2018 (the "2017 10-K").
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated. The Company has two reportable segments, Specialty Building Products ("SBP") and Mechanical Insulation ("MI"). Resources are allocated and performance is assessed by the Company's CEO, who is the Chief Operating Decision Maker ("CODM").
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards On January 1, 2018, the Company adopted new revenue recognition guidance, Accounting Standard Codification ("ASC") 606, Revenue from Contracts with Customers and all related amendments, using the modified retrospective method. The Company has concluded that the adoption did not have a material impact on its consolidated financial statements. Revenue Recognition - Revenue is recognized upon transfer of control of promised products to customers in an amount that reflects the consideration expected to be received in exchange for those products. The applicable shipping and handling costs invoiced to the customer are included in "Selling, general and administrative" expenses in the accompanying consolidated statements of operations. All revenue recognized is net of sales taxes collected, which are subsequently remitted to the appropriate government authorities. Performance Obligations - The performance obligation for product sales is met at a point in time, when the product is delivered and control is transferred to the customer. At inception of a contract with a customer, the price and quantity of goods are fixed. However, the Company offers discounts on terms and rebate incentives to select customers. The Company also gives customers the right to return eligible products. Disaggregation of Revenue - Refer to Note 12, Segments, for further information, including revenue by segment, by geography and by major product line. Contract Balances - The Company currently discloses its accounts receivable balances on the balance sheet. The Company does not have any contract assets due to the election of the practical expedient in Financial Accounting Standards Board ("FASB") ASC 340-40-25-4, which states an entity may recognize the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that the entity otherwise would have recognized is one year or less. The Company does not have any material contract liabilities. The Company is also required to disclose revenue recognized in the reporting period from performance obligations satisfied in previous reporting periods. This guidance is consistent with existing guidance related to changes in accounting estimates. The Company will continue to monitor changes in estimates related to sales returns, customer discounts and customer rebates and will disclose them if material. Significant Judgments - The Company calculates the allowance for sales returns, early pay discounts and customer rebates using the expected value method and believes its current methodology properly constrains revenue. The Company does not believe that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty associated with the variable consideration is resolved. Practical Expedients - In addition to the aforementioned practical expedient, the Company has elected the practical expedient as allowed by ASC 606-10-32-18, which states that an entity need not adjust the promised amount of consideration for the effects of a significant financing component if the entity expects, at contract inception, that the period between when the entity transfers promised goods or services to a customer and when the customer pays for those goods or services will be one year or less. In January 2016, the FASB issued Accounting Standards Update ("ASU") No. 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The updated guidance enhances the reporting model for financial instruments by modifying how entities measure and recognize equity investments and present changes in the fair value of financial liabilities, and by simplifying the disclosure guidance for financial instruments. The amendments in this update are effective for fiscal years beginning after December 15, 2017. The amendments in this update should be applied prospectively. The Company adopted this guidance on January 1, 2018, and it did not have a material impact on the Company’s consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU No. 2016-15 amended the existing accounting standards for the statement of cash flows. The amendments provide guidance on eight classification issues related to the statement of cash flows. This update is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2018, and it did not have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business, which clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This amendment is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2018, and it did not have a material impact on the Company’s consolidated financial statements. On January 1, 2018, the Company adopted ASU 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. As a result of income tax effects of the Tax Cut and Jobs Act (the “Tax Act”), which reduced the corporate federal tax rate from 35.0% to 21.0%, the Company reclassified $0.2 million from accumulated other comprehensive income to retained earnings related to its net investment hedge. Recently Issued Accounting Standards In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU No. 2016-02 establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either "finance" or "operating," with classification affecting the pattern of expense recognition in the income statement. This update requires a modified retrospective transition as of the beginning of the earliest comparative period presented in the financial statements. This update is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this guidance on its consolidated financial statements; however, it does expect the adoption of this guidance to have a material impact on its consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, Intangibles and Other (Topic 350): Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill but instead requires an entity to record an impairment charge based on the excess of a reporting unit’s carrying value over its fair value. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.