Description of Business and Basis of Presentation and Consolidation	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation and Consolidation	Note 1. Description of Business and Basis of Presentation and Consolidation *Description of Business* Rapid7, Inc. and subsidiaries (“we,” “us” or “our”) is a leading provider of security data and analytics solutions that enable organizations to implement an active, analytics-driven approach to cyber security. Our solutions empower organizations to prevent cyber attacks by providing visibility into vulnerabilities and to rapidly detect compromises, respond to breaches and correct the underlying causes of cyber attacks. *Basis of Presentation and Consolidation* The accompanying unaudited consolidated financial statements have been prepared by us in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) as well as pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Accordingly, certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC on March 10, 2016. The consolidated financial statements include our results of operations and those of our wholly-owned subsidiaries and reflect all adjustments (consisting solely of normal, recurring adjustments) which are, in the opinion of management, necessary for a fair statement of results for the interim periods presented. All intercompany transactions and balances have been eliminated in consolidation. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results to be expected for any future period or the entire fiscal year. *Recent Accounting Pronouncements* In March 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification on the statement of cash flows. The ASU will be effective for us in the first quarter of 2017, with early adoption permitted. We are currently evaluating the impact that the adoption of the ASU will have on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The ASU requires companies to recognize on the balance sheet the assets and liabilities for the rights and obligations created by leased assets. The ASU will be effective for us in the first quarter of 2019, with early adoption permitted. We are currently evaluating the impact that the adoption of this ASU will have on our consolidated financial statements. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740) – Balance Sheet Classification of Deferred Taxes. The ASU requires that deferred tax liabilities and assets be classified as noncurrent in a classified balance sheet simplifying current GAAP, which requires an entity to separate deferred tax liabilities and assets into current and noncurrent amounts in the balance sheet. The ASU will be effective for us in the first quarter of 2017, and may be applied prospectively or retrospectively at our election. We do not expect that the adoption of this ASU will have a material impact on our consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805) – Simplifying the Accounting for Measurement-Period Adjustments. The ASU requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The ASU requires that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The ASU requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. This ASU was adopted on January 1, 2016 and did not have a material impact on our consolidated financial statements. In April 2015, the FASB issued ASU 2015-05, Intangibles -Goodwill and Other – Internal Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides guidance on accounting for fees paid in a cloud computing arrangement. Under the ASU, if a cloud computing arrangement includes a software license which also grants the contractual rights and practical ability to take possession of the software, the software license element should be accounted for consistent with the purchase of other software licenses. If the cloud computing arrangement does not include a software license, as defined, it should be accounted for as a service contract. This ASU was adopted on January 1, 2016 and did not have a material impact on our consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU outlines a single, comprehensive model for accounting for revenue from contracts with customers and requires more detailed disclosure to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from such contracts. In August 2015, the FASB issued ASU 2015-14, which provides a one year deferral in the effective date of ASU 2014-09. ASU 2014-09 will now be effective for us beginning January 1, 2018; however, early adoption will be permitted as of the original effective date. The new standard may be applied retrospectively to each prior period presented or prospectively with the cumulative effect recognized on the date of adoption. We are currently evaluating the impact that the standard will have on our consolidated financial statements.

Note 1. Description of Business and Basis of Presentation and Consolidation

Description of Business

Rapid7, Inc. and subsidiaries (“we,” “us” or “our”) is a leading provider of security data and analytics solutions that enable organizations to implement an active, analytics-driven approach to cyber security. Our solutions empower organizations to prevent cyber attacks by providing visibility into vulnerabilities and to rapidly detect compromises, respond to breaches and correct the underlying causes of cyber attacks.

Basis of Presentation and Consolidation

The accompanying unaudited consolidated financial statements have been prepared by us in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) as well as pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Accordingly, certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC on March 10, 2016.

The consolidated financial statements include our results of operations and those of our wholly-owned subsidiaries and reflect all adjustments (consisting solely of normal, recurring adjustments) which are, in the opinion of management, necessary for a fair statement of results for the interim periods presented. All intercompany transactions and balances have been eliminated in consolidation. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results to be expected for any future period or the entire fiscal year.

Recent Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification on the statement of cash flows. The ASU will be effective for us in the first quarter of 2017, with early adoption permitted. We are currently evaluating the impact that the adoption of the ASU will have on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The ASU requires companies to recognize on the balance sheet the assets and liabilities for the rights and obligations created by leased assets. The ASU will be effective for us in the first quarter of 2019, with early adoption permitted. We are currently evaluating the impact that the adoption of this ASU will have on our consolidated financial statements.

In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740) – Balance Sheet Classification of Deferred Taxes. The ASU requires that deferred tax liabilities and assets be classified as noncurrent in a classified balance sheet simplifying current GAAP, which requires an entity to separate deferred tax liabilities and assets into current and noncurrent amounts in the balance sheet. The ASU will be effective for us in the first quarter of 2017, and may be applied prospectively or retrospectively at our election. We do not expect that the adoption of this ASU will have a material impact on our consolidated financial statements.

In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805) – Simplifying the Accounting for Measurement-Period Adjustments. The ASU requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The ASU requires that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The ASU requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. This ASU was adopted on January 1, 2016 and did not have a material impact on our consolidated financial statements.

In April 2015, the FASB issued ASU 2015-05, Intangibles -Goodwill and Other – Internal Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides guidance on accounting for fees paid in a cloud computing arrangement. Under the ASU, if a cloud computing arrangement includes a software license which also grants the contractual rights and practical ability to take possession of the software, the software license element should be accounted for consistent with the purchase of other software licenses. If the cloud computing arrangement does not include a software license, as defined, it should be accounted for as a service contract. This ASU was adopted on January 1, 2016 and did not have a material impact on our consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU outlines a single, comprehensive model for accounting for revenue from contracts with customers and requires more detailed disclosure to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from such contracts. In August 2015, the FASB issued ASU 2015-14, which provides a one year deferral in the effective date of ASU 2014-09. ASU 2014-09 will now be effective for us beginning January 1, 2018; however, early adoption will be permitted as of the original effective date. The new standard may be applied retrospectively to each prior period presented or prospectively with the cumulative effect recognized on the date of adoption. We are currently evaluating the impact that the standard will have on our consolidated financial statements.