Summary of significant accounting policies and basis of presentation (Policies)	3 Months Ended
Mar. 31, 2020
Summary of significant accounting policies and basis of presentation
Basis of Presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial reporting and as required by Regulation S-X, Rule 10-01. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 as filed with the Securities and Exchange Commission (“SEC”) on March 3, 2020. These interim condensed consolidated financial statements, in the opinion of management, reflect all normal recurring adjustments necessary for a fair presentation of the Company’s financial position and results of operations for the periods presented. Any reference in these notes to applicable guidance is meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). See “Recently Adopted Accounting Pronouncements” below for discussion of the Company’s adoption of new guidance effective January 1, 2020. All amounts and disclosures set forth in this Quarterly Report on Form 10-Q reflect adoption of these changes.
Principles of Consolidation	Principles of consolidation The unaudited interim consolidated financial statements include the accounts of the Company and its wholly owned subsidiary as disclosed in Note 2, Summary of Significant Accounting Policies and Basis of Presentation, within the “Notes to Consolidated Financial Statements” accompanying the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019. Intercompany accounts and transactions have been eliminated.
Use of estimates	Use of estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. On an ongoing basis, the Company’s management evaluates its estimates, which include, but are not limited to, estimates related to revenue recognition, accrued expenses, stock-based compensation expense, and income taxes. The Company bases its estimates on historical experience and other market specific or other relevant assumptions that it believes to be reasonable under the circumstances. Actual results may differ from those estimates or assumptions. Certain reclassifications have been made to prior periods to conform to current period presentation.
Summary of Significant Accounting Policies and Recent Accounting Pronouncements	Summary of Significant Accounting Policies There have been no changes in the Company's significant accounting policies as described in, Summary of Significant Accounting Policies to the consolidated financial statements in its Annual Report on Form 10-K for the year ended December 31, 2019. Recently Adopted Accounting Pronouncements In 2016, the Financial Accounting Standards Board or FASB, issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables and available-for-sale debt securities. The Company adopted the standard on January 1, 2020. Based on the composition of the Company's investment portfolio, current market conditions, and historical credit loss activity, the adoption of this standard did not have a material impact on the Company's consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). This standard eliminates, adds and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. The Company adopted the standard on the required effective date of January 1, 2020. This standard did not have a material impact on the Company’s consolidated financial statements and related dicsclosures.

Summary of significant accounting policies and basis of presentation

Principles of consolidation

The unaudited interim consolidated financial statements include the accounts of the Company and its wholly owned subsidiary as disclosed in Note 2, Summary of Significant Accounting Policies and Basis of Presentation, within the “Notes to Consolidated Financial Statements” accompanying the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019. Intercompany accounts and transactions have been eliminated.

Summary of Significant Accounting Policies and Recent Accounting Pronouncements

Summary of Significant Accounting Policies

There have been no changes in the Company's significant accounting policies as described in, Summary of Significant Accounting Policies to the consolidated financial statements in its Annual Report on Form 10-K for the year ended December 31, 2019.

Recently Adopted Accounting Pronouncements

In 2016, the Financial Accounting Standards Board or FASB, issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which amends

the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables and available-for-sale debt securities. The Company adopted the standard on January 1, 2020. Based on the composition of the Company's investment portfolio, current market conditions, and historical credit loss activity, the adoption of this standard did not have a material impact on the Company's consolidated financial statements and related disclosures.

In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). This standard eliminates, adds and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. The Company adopted the standard on the required effective date of January 1, 2020. This standard did not have a material impact on the Company’s consolidated financial statements and related dicsclosures.