Summary of Significant Accounting Policies	3 Months Ended
Apr. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Organization and Description of Business DocuSign, Inc. (“we,” “our,” or “us”) was incorporated in the State of Washington in April 2003. We merged with and into DocuSign, Inc., a Delaware corporation, in March 2015. We provide a platform that enables businesses of all sizes to digitally prepare, execute and act on agreements, thereby simplifying and accelerating the process of doing business. Basis of Presentation and Principles of Consolidation Our condensed consolidated financial statements include the accounts of DocuSign, Inc. and our wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Our condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Therefore, these unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our prospectus dated April 26, 2018, as filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, as amended (File No. 333-223990) (“Prospectus”). Our condensed consolidated financial statements are unaudited and have been prepared on a basis consistent with that used to prepare the audited annual consolidated financial statements and, in our opinion, include all adjustments of a normal recurring nature necessary for the fair statement of our financial position, results of operations, and cash flows. The condensed consolidated balance sheet as of January 31, 2018 was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the three months ended April 30, 2018 are not necessarily indicative of the results to be expected for the year ending January 31, 2019. Our fiscal year ends on January 31. References to fiscal 2019, for example, are to the fiscal year ending January 31, 2019. Other than described below, there have been no changes to our significant accounting policies described in our Prospectus that have had a material impact on our consolidated financial statements and related notes. 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 revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include those related to the allocation of revenue between recognized and deferred amounts, allowance for bad debts, goodwill, intangible assets, deferred contract acquisition costs, customer benefit period, fair value of financial instruments, valuation of stock-based compensation, valuation of common stock, valuation of warrant liabilities and the valuation allowance for deferred income taxes. Stock-Based Compensation Compensation cost for all stock-based awards, including stock options and restricted stock units ("RSUs"), is measured at fair value on the date of grant and recognized over the service period. The fair value of stock options is estimated on the date of grant using a Black-Scholes model. The fair value of RSUs is estimated on the date of grant based on the fair value of our underlying common stock. We recognize compensation expense for stock options on a straight-line basis over the requisite service period. Compensation expense for RSUs granted prior to January 31, 2018, is amortized on a graded basis over the requisite service period as long as the performance condition in the form of a specified liquidity event is probable to occur. The liquidity event condition was satisfied upon the effectiveness of our registration statement on Form S-1 ("IPO Registration Statement") on April 26, 2018. On that date we recorded a cumulative stock-based compensation expense of $262.8 million using the accelerated attribution method for all the RSUs, for which the service condition has been fully satisfied as of April 26, 2018. The remaining unrecognized stock-based compensation expense related to the RSUs will be recorded over their remaining requisite service periods. All RSUs granted after January 31, 2018 vest on the satisfaction of service-based condition only. We recognize compensation expense for such RSUs on a straight-line basis over the requisite service period. Compensation expense is recognized net of forfeitures that are estimated at the time of grant and revised in subsequent periods if actual forfeitures differ from those estimates. We account for equity instruments issued to non-employees at fair value of the consideration received or fair value of the equity instrument issued, whichever is more reliably measurable. The measurement date of the fair value of the equity instrument issued is the earlier of the date on which the counterparty’s performance is complete or the date on which it is probable that performance will occur. Compensation expense related to stock-based awards issued to non-employees was $0.7 million and $0.3 million for the three months ended April 30, 2018 and 2017. Determining the grant date fair value of options using the Black-Scholes option-pricing model requires management to make assumptions and judgments. These estimates involve inherent uncertainties and, if different assumptions had been used, stock-based compensation expense could have been materially different from the amounts recorded. Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board ("FASB") issued accounting standards update ("ASU") No. 2016-02, Leases (Topic 842), which supersedes current guidance related to accounting for leases. This guidance is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The standard is effective for public entities for annual and interim reporting periods beginning after December 15, 2018. Early adoption is permitted. The ASU can be adopted using either full or modified retrospective approach. We are evaluating the new guidance and assessing the potential impact on our consolidated financial statements. In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220), which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act ("TCJA"). As the amendments only relate to the reclassification of the income tax effects of the TCJA, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The standard is effective for annual and interim reporting periods beginning after December 15, 2018 for all entities. The amendments are to be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the TCJA is recognized. Early adoption is permitted. The adoption of the standard is not expected to have a material impact on our consolidated financial statements.

Summary of Significant Accounting Policies

Organization and Description of Business

DocuSign, Inc. (“we,” “our,” or “us”) was incorporated in the State of Washington in April 2003. We merged with and into DocuSign, Inc., a Delaware corporation, in March 2015.

We provide a platform that enables businesses of all sizes to digitally prepare, execute and act on agreements, thereby simplifying and accelerating the process of doing business.

Basis of Presentation and Principles of Consolidation

Our condensed consolidated financial statements include the accounts of DocuSign, Inc. and our wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

Our condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Therefore, these unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our prospectus dated April 26, 2018, as filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, as amended (File No. 333-223990) (“Prospectus”).

Our condensed consolidated financial statements are unaudited and have been prepared on a basis consistent with that used to prepare the audited annual consolidated financial statements and, in our opinion, include all adjustments of a normal recurring nature necessary for the fair statement of our financial position, results of operations, and cash flows. The condensed consolidated balance sheet as of January 31, 2018 was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the three months ended April 30, 2018 are not necessarily indicative of the results to be expected for the year ending January 31, 2019.

Our fiscal year ends on January 31. References to fiscal 2019, for example, are to the fiscal year ending January 31, 2019.

Other than described below, there have been no changes to our significant accounting policies described in our Prospectus that have had a material impact on our consolidated financial statements and related notes.

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 revenues and expenses during the reporting period. Actual results could differ from those estimates.

Significant items subject to such estimates and assumptions include those related to the allocation of revenue between recognized and deferred amounts, allowance for bad debts, goodwill, intangible assets, deferred contract acquisition costs, customer benefit period, fair value of financial instruments, valuation of stock-based compensation, valuation of common stock, valuation of warrant liabilities and the valuation allowance for deferred income taxes.

Stock-Based Compensation

Compensation cost for all stock-based awards, including stock options and restricted stock units ("RSUs"), is measured at fair value on the date of grant and recognized over the service period. The fair value of stock options is estimated on the date of grant using a Black-Scholes model. The fair value of RSUs is estimated on the date of grant based on the fair value of our underlying common stock.

We recognize compensation expense for stock options on a straight-line basis over the requisite service period. Compensation expense for RSUs granted prior to January 31, 2018, is amortized on a graded basis over the requisite service period as long as the performance condition in the form of a specified liquidity event is probable to occur. The liquidity event condition was satisfied upon the effectiveness of our registration statement on Form S-1 ("IPO Registration Statement") on April 26, 2018. On that date we recorded a cumulative stock-based compensation expense of $262.8 million using the accelerated attribution method for all the RSUs, for which the service condition has been fully satisfied as of April 26, 2018. The remaining unrecognized stock-based compensation expense related to the RSUs will be recorded over their remaining requisite service periods. All RSUs granted after January 31, 2018 vest on the satisfaction of service-based condition only. We recognize compensation expense for such RSUs on a straight-line basis over the requisite service period.

Compensation expense is recognized net of forfeitures that are estimated at the time of grant and revised in subsequent periods if actual forfeitures differ from those estimates.

We account for equity instruments issued to non-employees at fair value of the consideration received or fair value of the equity instrument issued, whichever is more reliably measurable. The measurement date of the fair value of the equity instrument issued is the earlier of the date on which the counterparty’s performance is complete or the date on which it is probable that performance will occur. Compensation expense related to stock-based awards issued to non-employees was $0.7 million and $0.3 million for the three months ended April 30, 2018 and 2017.

Determining the grant date fair value of options using the Black-Scholes option-pricing model requires management to make assumptions and judgments. These estimates involve inherent uncertainties and, if different assumptions had been used, stock-based compensation expense could have been materially different from the amounts recorded.

Recent Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB") issued accounting standards update ("ASU") No. 2016-02, Leases (Topic 842), which supersedes current guidance related to accounting for leases. This guidance is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The standard is effective for public entities for annual and interim reporting periods beginning after December 15, 2018. Early adoption is permitted. The ASU can be adopted using either full or modified retrospective approach. We are evaluating the new guidance and assessing the potential impact on our consolidated financial statements.

In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220), which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act ("TCJA"). As the amendments only relate to the reclassification of the income tax effects of the TCJA, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The standard is effective for annual and interim reporting periods beginning after December 15, 2018 for all entities. The amendments are to be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the TCJA is recognized. Early adoption is permitted. The adoption of the standard is not expected to have a material impact on our consolidated financial statements.