Description of Business and Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation In accordance with Securities and Exchange Commission (“SEC”) rules for interim periods, the accompanying unaudited condensed consolidated financial statements (the “interim financial statements”) do not include all of the information and notes for complete financial statements as required by accounting principles generally accepted in the United States of America (“U.S. GAAP”). As such, the accompanying interim financial statements should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2019, which provides a more complete description of the Company’s accounting policies, financial position, operating results, business, properties, and other matters. The year-end condensed consolidated Balance Sheet (the “Balance Sheet”) was derived from audited financial statements. In the opinion of management, the interim financial statements reflect all normal recurring adjustments necessary for a fair presentation of the Company's financial condition and operating results as of and for the periods presented. Revenue, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the interim results and trends in the interim financial statements may not be representative of those for the full year or any future period.
Use of Estimates	Use of estimates Preparation of financial statements that follow U.S. GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates.
Goodwill	GoodwillThe Company tests goodwill for impairment annually during the fourth quarter and whenever events occur or changes in circumstances indicate that impairment may have occurred. Impairment testing is performed for each of the Company's reporting units by first assessing qualitative factors to see if further testing of goodwill is required. If the Company concludes that it is more likely than not that a reporting unit’s fair value is less than its carrying amount based on the qualitative assessment, then a quantitative test is required. The Company may also choose to bypass the qualitative assessment and perform the quantitative test. In performing the quantitative test, the Company determines the fair value of a reporting unit using the “income approach” valuation method. The Company uses a discounted cash flow model in which cash flows anticipated over several periods, plus a terminal value at the end of that time horizon, are discounted to their present value using an appropriate cost of capital rate. Judgment is required in developing the assumptions for the discounted cash flow model. These assumptions include revenue growth rates, profit margin percentages, discount rates, perpetuity growth rates, future capital expenditures, and working capital requirements, among others. If the estimated fair value of a reporting unit exceeds its carrying value, the Company considers that goodwill is not impaired. If the carrying value exceeds estimated fair value, there is an indication of impairment, and an impairment loss would be recorded. The Company calculates the impairment loss by comparing the fair value of the reporting unit less its carrying amount, including goodwill, and would be limited to the carrying value of the goodwill.
Acquired Intangible Assets	Acquired intangible assets Intangible assets with finite useful lives are subject to amortization on a straight-line basis over the expected period of economic benefit, which range from less than 1 year to 21 years. The Company evaluates whether events or circumstances have occurred that warrant a revision to the remaining useful lives of intangible assets. In cases where a revision is deemed appropriate, the remaining carrying amounts of the intangible assets are amortized over the revised remaining useful life. The carrying values of intangible assets with indefinite lives are reviewed for recoverability on an annual basis, and whenever events occur or changes in circumstances indicate that impairment may have occurred. The facts and circumstances considered include an assessment of the recoverability of the cost of intangible assets from future cash flows to be derived from the use of the asset. It is not possible to predict the likelihood of any possible future impairments or, if such an impairment were to occur, the magnitude of any impairment. However, any potential impairment would be limited to the carrying value of the indefinite-lived intangible asset.
Impairment of Long-Lived Assets	Impairment of long-lived assets Long-lived assets other than goodwill and acquired indefinite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the long-lived asset may not be recoverable. The carrying amount of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. If it is determined that an impairment loss has occurred, the loss is measured as the amount by which the carrying amount of the long-lived asset exceeds its fair value.
Recently Adopted Accounting Standards and Recently Issued Accounting Standards Not Yet Adopted	Recently adopted accounting standards In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments (ASC 326), which amends the Board’s guidance on the impairment of financial instruments. The ASU adds an impairment model that is based on expected losses rather than incurred losses, which is known as the current expected credit loss (“CECL”) model. The CECL model applies to most debt instruments (other than those measured at fair value), trade and other receivables, financial guarantee contracts, and loan commitments. This ASU is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company adopted ASC 326 as of January 1, 2020, using the cumulative-effect transition method with the required prospective approach. The cumulative-effect transition method enables an entity to record an allowance for expected credit loss at the date of adoption without restating comparative periods. The adoption of ASC 326 as of January 1, 2020 did not materially impact Trade receivables, net of allowances and Retained earnings and had no impact on consolidated net income and cash flows. In August 2018, the FASB issued ASU 2018-13, Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which amends Topic 820, Fair Value Measurement. ASU 2018-13 removes, modifies, and adds disclosure requirements for fair value measurements. The ASU is effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2019. The adoption of ASU 2018-13 as of January 1, 2020 did not materially impact the Company's disclosures in Note 9. Fair Value of Financial Instruments. Recently issued accounting standards not yet adopted In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans. ASU 2018-14 removes, modifies, and adds disclosure requirements for defined benefit plans. The disclosure modifications in ASU 2018-14 will be applied on a retrospective basis. The ASU is effective for annual reporting periods ending after December 15, 2020, with early adoption permitted. The Company is currently evaluating the impact of adopting ASU 2018-14 on its disclosures. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. The new standard will be effective for annual reporting periods beginning after December 15, 2020 and interim periods within those fiscal years. The Company is currently evaluating the potential impact ASU 2019-12 may have on its financial position and results of operations upon adoption.

Description of Business and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

In accordance with Securities and Exchange Commission (“SEC”) rules for interim periods, the accompanying unaudited condensed consolidated financial statements (the “interim financial statements”) do not include all of the information and notes for complete financial statements as required by accounting principles generally accepted in the United States of America (“U.S. GAAP”). As such, the accompanying interim financial statements should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2019, which provides a more complete description of the Company’s accounting policies, financial position, operating results, business, properties, and other matters. The year-end condensed consolidated Balance Sheet (the “Balance Sheet”) was derived from audited financial statements.

In the opinion of management, the interim financial statements reflect all normal recurring adjustments necessary for a fair presentation of the Company's financial condition and operating results as of and for the periods presented. Revenue, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the interim results and trends in the interim financial statements may not be representative of those for the full year or any future period.

Use of Estimates

Use of estimates

Preparation of financial statements that follow U.S. GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates.

Goodwill

GoodwillThe Company tests goodwill for impairment annually during the fourth quarter and whenever events occur or changes in circumstances indicate that impairment may have occurred. Impairment testing is performed for each of the Company's reporting units by first assessing qualitative factors to see if further testing of goodwill is required. If the Company concludes that it is more likely than not that a reporting unit’s fair value is less than its carrying amount based on the qualitative assessment, then a quantitative test is required. The Company may also choose to bypass the qualitative assessment and perform the quantitative test. In performing the quantitative test, the Company determines the fair value of a reporting unit using the “income approach” valuation method. The Company uses a discounted cash flow model in which cash flows anticipated over several periods, plus a terminal value at the end of that time horizon, are discounted to their present value using an appropriate cost of capital rate. Judgment is required in developing the assumptions for the discounted cash flow model. These assumptions include revenue growth rates, profit margin percentages, discount rates, perpetuity growth rates, future capital expenditures, and working capital requirements, among others. If the estimated fair value of a reporting unit exceeds its carrying value, the Company considers that goodwill is not impaired. If the carrying value exceeds estimated fair value, there is an indication of impairment, and an impairment loss would be recorded. The Company calculates the impairment loss by comparing the fair value of the reporting unit less its carrying amount, including goodwill, and would be limited to the carrying value of the goodwill.

Acquired Intangible Assets

Acquired intangible assets

Intangible assets with finite useful lives are subject to amortization on a straight-line basis over the expected period of economic benefit, which range from less than 1 year to 21 years. The Company evaluates whether events or circumstances have occurred that warrant a revision to the remaining useful lives of intangible assets. In cases where a revision is deemed appropriate, the remaining carrying amounts of the intangible assets are amortized over the revised remaining useful life.

The carrying values of intangible assets with indefinite lives are reviewed for recoverability on an annual basis, and whenever events occur or changes in circumstances indicate that impairment may have occurred. The facts and circumstances considered include an assessment of the recoverability of the cost of intangible assets from future cash flows to be derived from the use of the asset. It is not possible to predict the likelihood of any possible future impairments or, if such an impairment were to occur, the magnitude of any impairment. However, any potential impairment would be limited to the carrying value of the indefinite-lived intangible asset.

Impairment of Long-Lived Assets

Impairment of long-lived assets

Long-lived assets other than goodwill and acquired indefinite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the long-lived asset may not be recoverable. The carrying amount of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. If it is determined that an impairment loss has occurred, the loss is measured as the amount by which the carrying amount of the long-lived asset exceeds its fair value.

Recently Adopted Accounting Standards and Recently Issued Accounting Standards Not Yet Adopted

Recently adopted accounting standards

In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments (ASC 326), which amends the Board’s guidance on the impairment of financial instruments. The ASU adds an impairment model that is based on expected losses rather than incurred losses, which is known as the current expected credit loss (“CECL”) model. The CECL model applies to most debt instruments (other than those measured at fair value), trade and other receivables, financial guarantee contracts, and loan commitments. This ASU is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company adopted ASC 326 as of January 1, 2020, using the cumulative-effect transition method with the required prospective approach. The cumulative-effect transition method enables an entity to record an allowance for expected credit loss at the date of adoption without restating comparative periods. The adoption of ASC 326 as of January 1, 2020 did not materially impact Trade receivables, net of allowances and Retained earnings and had no impact on consolidated net income and cash flows.

In August 2018, the FASB issued ASU 2018-13, Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which amends Topic 820, Fair Value Measurement. ASU 2018-13 removes, modifies, and adds disclosure requirements for fair value measurements. The ASU is effective for annual reporting periods, including interim periods within those annual periods, beginning after December 15, 2019. The adoption of ASU 2018-13 as of January 1, 2020 did not materially impact the Company's disclosures in Note 9. Fair Value of Financial Instruments.

Recently issued accounting standards not yet adopted

In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans. ASU 2018-14 removes, modifies, and adds disclosure requirements for defined benefit plans. The disclosure modifications in ASU 2018-14 will be applied on a retrospective basis. The ASU is effective for annual reporting periods ending after December 15, 2020, with early adoption permitted. The Company is currently evaluating the impact of adopting ASU 2018-14 on its disclosures.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. The new standard will be effective for annual reporting periods beginning after December 15, 2020 and interim periods within those fiscal years. The Company is currently evaluating the potential impact ASU 2019-12 may have on its financial position and results of operations upon adoption.