Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2019
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation The unaudited interim consolidated financial statements included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Accordingly, they do not include all information and disclosures necessary for a presentation of our financial position, results of operations and cash flows in conformity with generally accepted accounting principles in the United States of America (GAAP) for annual financial statements. In the opinion of management, these unaudited interim consolidated financial statements reflect the elimination of all intercompany accounts and transactions and all adjustments, consisting primarily of normal recurring accruals, necessary for a fair presentation of our financial position and results of operations and cash flows for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2018 and accompanying notes thereto included in our annual report on Form 10-K filed with the SEC on March 12, 2019. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from such estimates. Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (FASB) established Topic 842, Leases, by issuing Accounting Standards Update (ASU) No. 2016-02, which requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements. Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842, Leases; and ASU No. 2018-11, Targeted Improvements. The new standard establishes a right-of-use model that requires a lessee to recognize a right-of-use (ROU) asset and lease liability on the balance sheet for all leases with a term longer than 12 months, and leases are classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. We adopted ASU 2016-02 in the first quarter of 2019 utilizing the modified retrospective transition method on the effective date. Consequently, financial information has not been updated and the disclosures required under the new standard have not been provided for dates and periods before January 1, 2019. Upon adoption, we elected the ‘package of practical expedients,’ which permitted us not to reassess under the new standard our prior conclusions about lease identification, lease classification and initial direct costs. We did not elect the use-of-hindsight practical expedient nor the practical expedient pertaining to land easements, the latter not being applicable to us. The adoption of ASU 2016-02 on January 1, 2019 resulted in the recognition of right-of-use assets of $2.5 million and lease liabilities for operating leases of $3.4 million on our interim consolidated balance sheets, with no material impact to our interim consolidated statements of operations, cash flows or stockholders’ equity. The operating lease liabilities were determined based on the present value of the remaining minimum retal payments and the operating lease asset was determined based on the value of the lease liability, adjusted for the lease incentive of $0.9 million. See Note 8 for further information regarding the impact of the adoption of ASU 2016-02 on our interim consolidated financial statements.

2. Summary of Significant Accounting Policies

Basis of Presentation

The unaudited interim consolidated financial statements included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Accordingly, they do not include all information and disclosures necessary for a presentation of our financial position, results of operations and cash flows in conformity with generally accepted accounting principles in the United States of America (GAAP) for annual financial statements. In the opinion of management, these unaudited interim consolidated financial statements reflect the elimination of all intercompany accounts and transactions and all adjustments, consisting primarily of normal recurring accruals, necessary for a fair presentation of our financial position and results of operations and cash flows for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2018 and accompanying notes thereto included in our annual report on Form 10-K filed with the SEC on March 12, 2019.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from such estimates.

Recent Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board (FASB) established Topic 842, Leases, by issuing Accounting Standards Update (ASU) No. 2016-02, which requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements. Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842, Leases; and ASU No. 2018-11, Targeted Improvements. The new standard establishes a right-of-use model that requires a lessee to recognize a right-of-use (ROU) asset and lease liability on the balance sheet for all leases with a term longer than 12 months, and leases are classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement.

We adopted ASU 2016-02 in the first quarter of 2019 utilizing the modified retrospective transition method on the effective date. Consequently, financial information has not been updated and the disclosures required under the new standard have not been provided for dates and periods before January 1, 2019. Upon adoption, we elected the ‘package of practical expedients,’ which permitted us not to reassess under the new standard our prior conclusions about lease identification, lease classification and initial direct costs. We did not elect the use-of-hindsight practical expedient nor the practical expedient pertaining to land easements, the latter not being applicable to us. The adoption of ASU 2016-02 on January 1, 2019 resulted in the recognition of right-of-use assets of $2.5 million and lease liabilities for operating leases of $3.4 million on our interim consolidated balance sheets, with no material impact to our interim consolidated statements of operations, cash flows or stockholders’ equity. The operating lease liabilities were determined based on the present value of the remaining minimum retal payments and the operating lease asset was determined based on the value of the lease liability, adjusted for the lease incentive of $0.9 million. See Note 8 for further information regarding the impact of the adoption of ASU 2016-02 on our interim consolidated financial statements.