Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	The Condensed Consolidated Financial Statements presented herein have been prepared by the Company in accordance with the accounting policies described in its December 31, 2017 Annual Report on Form 10-K and should be read in conjunction with the Notes to Consolidated Financial Statements which appear in that report. All significant intercompany balances and transactions have been eliminated. Certain prior year balances have been reclassified to conform to current year presentation. Recent Accounting Pronouncements Recently issued accounting pronouncements not yet adopted In August 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-12, Targeted Improvements to Accounting for Hedging Activities, which amends ASC 815, Derivatives and Hedging. This ASU better aligns an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which amends ASC 350, Intangibles - Goodwill and Other. This ASU simplifies how an entity is required to test goodwill for impairment by eliminating step 2 from the goodwill impairment test. Step 2 measures goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. This ASU is effective for interim and annual reporting periods, beginning after December 15, 2019, and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases. This ASU requires, in most instances, a lessee to recognize on its balance sheet a liability to make lease payments (the lease liability) and also a right-of-use asset representing its right to use the underlying asset for the lease term. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those periods, using a modified retrospective approach with early adoption permitted. The Company will adopt ASU 2016-02 on January 1, 2019 using the modified retrospective approach, and the adoption is expected to have a material effect on the Company’s consolidated financial statements. While the Company continues to execute on its implementation plan and is currently gathering lease data to derive the impact of adoption, the most significant expected change relates to the recognition of new right-of-use assets and lease liabilities on the consolidated balance sheet for real estate, machinery and equipment, and vehicle operating leases. The Company does not expect the adoption to have a material impact to its consolidated statement of cash flows or consolidated statement of income. Recently adopted accounting pronouncements In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments, which amends ASC 230, Statement of Cash Flows. This ASU provides guidance on the statement of cash flows presentation of certain transactions where diversity in practice exists. This ASU is effective for annual and interim periods beginning after December 15, 2017, and should be applied retrospectively with early adoption permitted at the beginning of an interim or annual reporting period. The Company adopted this ASU effective January 1, 2018, with retrospective disclosure. As a result, the Company reclassified $1.0 million of cash outflow from financing activities to cash outflow from operations for the six months ended June 30, 2017. The adoption of this guidance did not have a material impact on the Company’s financial position or results of operations. In May 2014, the FASB issued ASU 2014-09 (Topic 606), Revenue from Contracts with Customers. Topic 606 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and requires entities to recognize revenue when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The Company adopted Topic 606 as of January 1, 2018 using the modified retrospective transition method. The adoption did not result in a cumulative effect adjustment to beginning retained earnings. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The Company expects the impact of the adoption of the new standard to be immaterial to net income on an ongoing basis. See Note 3 for further detail.

The Condensed Consolidated Financial Statements presented herein have been prepared by the Company in accordance with the accounting policies described in its December 31, 2017 Annual Report on Form 10-K and should be read in conjunction with the Notes to Consolidated Financial Statements which appear in that report. All significant intercompany balances and transactions have been eliminated. Certain prior year balances have been reclassified to conform to current year presentation.

Recent Accounting Pronouncements

Recently issued accounting pronouncements not yet adopted

In August 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-12, Targeted Improvements to Accounting for Hedging Activities, which amends ASC 815, Derivatives and Hedging. This ASU better aligns an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on the Company’s consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which amends ASC 350, Intangibles - Goodwill and Other. This ASU simplifies how an entity is required to test goodwill for impairment by eliminating step 2 from the goodwill impairment test. Step 2 measures goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. This ASU is effective for interim and annual reporting periods, beginning after December 15, 2019, and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on the Company’s consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU requires, in most instances, a lessee to recognize on its balance sheet a liability to make lease payments (the lease liability) and also a right-of-use asset representing its right to use the underlying asset for the lease term. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those periods, using a modified retrospective approach with early adoption permitted.

The Company will adopt ASU 2016-02 on January 1, 2019 using the modified retrospective approach, and the adoption is expected to have a material effect on the Company’s consolidated financial statements. While the Company continues to execute on its implementation plan and is currently gathering lease data to derive the impact of adoption, the most significant expected change relates to the recognition of new right-of-use assets and lease liabilities on the consolidated balance sheet for real estate, machinery and equipment, and vehicle operating leases. The Company does not expect the adoption to have a material impact to its consolidated statement of cash flows or consolidated statement of income.

Recently adopted accounting pronouncements

In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments, which amends ASC 230, Statement of Cash Flows. This ASU provides guidance on the statement of cash flows presentation of certain transactions where diversity in practice exists. This ASU is effective for annual and interim periods beginning after December 15, 2017, and should be applied retrospectively with early adoption permitted at the beginning of an interim or annual reporting period. The Company adopted this ASU effective January 1, 2018, with retrospective disclosure. As a result, the Company reclassified $1.0 million of cash outflow from financing activities to cash outflow from operations for the six months ended June 30, 2017. The adoption of this guidance did not have a material impact on the Company’s financial position or results of operations.

In May 2014, the FASB issued ASU 2014-09 (Topic 606), Revenue from Contracts with Customers. Topic 606 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and requires entities to recognize revenue when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The Company adopted Topic 606 as of January 1, 2018 using the modified retrospective transition method. The adoption did not result in a cumulative effect adjustment to beginning retained earnings. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The Company expects the impact of the adoption of the new standard to be immaterial to net income on an ongoing basis. See Note 3 for further detail.