Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies

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Summary of Significant Accounting Policies
3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies Summary of Significant Accounting Policies
 
Other than discussed below, there have been no material changes to our significant accounting policies as compared to those described in our Annual Report on Form 10-K for the year ended December 31, 2017.

Revenue Recognition

Refer to Note 3 "Revenues" in the Notes to Condensed Consolidated Financial Statements for our Revenue Recognition policy.

Concentration of Credit Risk
 
For the three months ended March 31, 2017 and 2018, we had no customers that accounted for more than 10% of our total revenue. As of December 31, 2017 and March 31, 2018, we had no customers that accounted for more than 10% of our total accounts receivable.
 
Recently Issued Accounting Standards

In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 requires lessees to put most leases on their balance sheets and recognize expenses on their income statements and also eliminates the real estate-specific provisions for all entities. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We expect to adopt ASU 2016-02 as of January 1, 2019 using the modified retrospective method. We are in the process of evaluating the impact of ASU 2016-02 on our consolidated financial statements and expect there to be a material impact related to the recognition of new right of use assets and lease liabilities on our balance sheet for operating leases.

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Credit Losses—Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 will replace today’s incurred loss approach with an expected loss model for instruments measured at amortized cost and require entities to record allowances for available-for-sale debt securities rather than reduce the carrying amount. The guidance is effective for fiscal years beginning after December 15, 2019, and interim periods within that fiscal year, although early adoption is permitted. We are currently evaluating the impact that this standard update will have on our condensed consolidated financial statements.

Recently Adopted Accounting Standards

In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"), which amends the existing accounting standards for revenue recognition. ASU 2014-09 outlines a single comprehensive model for entities to use in accounting for revenue. Under the guidance, revenue is recognized when a company transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. We have adopted ASU 2014-09 as of January 1, 2018 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Revenues and contract assets or liabilities for contracts completed prior to January 1, 2018 are presented under Topic 605, and revenues and contract assets and liabilities from contracts which were not completed or started after December 31, 2017 are presented under Topic 606. The adoption of this guidance does not have a material impact on our consolidated financial statements. Refer to Note 3 "Revenues" in the Notes to Condensed Consolidated Financial Statements for further information.

In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230), Restricted Cash ("ASU 2016-18"). ASU 2016-18 requires amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the total beginning and ending amounts for the periods shown on the statement of cash flows. The guidance is effective retrospectively for fiscal years beginning after December 15, 2017, and interim periods within that fiscal year. We adopted this guidance effective January 1, 2018, using the retrospective transition approach for all periods presented. The adoption of ASU 2016-18 does not have a material impact on our consolidated financial statements.

In January 2017, the FASB issued Accounting Standards Update No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (ASU 2017-01). ASU 2017-01 revises the definition of a business and provides new guidance in evaluating when a set of transferred assets and activities is considered a business. We adopted this guidance effective January 1, 2018, using the prospective approach. The new standard did not have an impact on our condensed consolidated financial statements.