Organization and Operations	9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]
Organization and Operations	1. Organization and Operations HubSpot, Inc. (the “Company”) was formed as a limited liability company in Delaware on April 4, 2005. The Company converted to a Delaware corporation on June 7, 2007. The Company provides a cloud-based inbound marketing and sales platform which features integrated applications to help businesses attract visitors to their websites, convert visitors into leads, close leads into customers and delight customers so they become promoters of those businesses. These integrated applications include social media, search engine optimization, blogging, website content management, marketing automation, email, CRM, analytics, and reporting. The Company is headquartered in Cambridge, Massachusetts, and has wholly-owned subsidiaries in Dublin, Ireland, which commenced operations in January 2013, in Sydney, Australia, which commenced operations in August 2014, in Singapore, which commenced operations in October 2015, in Tokyo, Japan, which commenced operations in July 2016, and in Berlin, Germany, which commenced operations in July 2017. The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission (“SEC”). In the opinion of management, the Company has prepared the accompanying unaudited consolidated financial statements on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the year ended December 31, 2016, and these consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2017. The year-end balance sheet data was derived from audited financial statements, but this Form 10-Q does not include all disclosures required under GAAP. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted under the rules and regulations of the SEC. These interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K filed with the SEC on February 16, 2017. There have been no changes in the Company’s significant accounting policies from those that were disclosed in the Company’s Annual Report on Form 10-K that have had a material impact on our consolidated financial statements and related notes, except the adoption of updated guidance related to certain aspects of share-based payments to employee described within the Recent Accounting Pronouncements below. Recent Accounting Pronouncements Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations. The Company adopted updated guidance related to certain aspects of share-based payments to employees. The guidance requires the recognition of the income tax effects of awards in the income statement when the awards vest or are settled, thus eliminating additional paid-in capital pools. As a result of the adoption, we recorded an increase to deferred tax assets with a corresponding increase to the valuation allowance of $30.4 million to recognize net operating loss carryforwards attributable to excess tax benefits on stock compensation that had not been previously recognized as additional paid-in capital. In addition, the Company changed its policy election to account for forfeitures as they occur rather than on an estimated basis. The change in the policy election related to forfeitures resulted in the Company reclassifying $452 thousand from additional paid-in capital to accumulative deficit for the net cumulative-effect adjustment in stock compensation expense related to prior periods. In January 2017, the FASB issued guidance, which clarifies the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The standard introduces a screen for determining when assets acquired are not a business and clarifies that a business must include, at a minimum, an input and a substantive process that contribute to an output to be considered a business. This standard is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period, and early adoption is permitted. The Company adopted this standard in the third quarter of 2017 and the adoption of this standard did not have a material impact on the consolidated financial statements. In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under current guidance, Step 2 of the goodwill impairment test requires entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value is recognized as goodwill impairment. Under the new standard, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The new standard is effective beginning in January 2020, with early adoption permitted. We do not believe the adoption of this guidance will have a material impact on our consolidated financial statements. In November 2016, the FASB issued guidance related to the presentation of restricted cash within the statement of cash flows. The guidance requires entities to show the changes in cash, cash equivalents, and restricted cash in the statement of cash flows. Entities will no longer present transfers between cash and cash equivalents and restricted cash in the statement of cash flows. As of September 30, 2017, we had $5.1 million in restricted cash. The new standard is effective beginning in the first quarter of 2018, with early adoption permitted. The Company is currently evaluating the impact of this guidance on the consolidated financial statements. In February 2016, the FASB issued guidance that requires lessees to recognize most leases on their balance sheets but record expenses on their income statements in a manner similar to current accounting. For lessors, the guidance modifies the classification criteria and the accounting for sales-type and direct financing leases. The guidance is effective in 2019 with early adoption permitted. The Company is currently evaluating the impact of this guidance on the consolidated financial statements. In May 2014, the FASB issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard also provides guidance on the recognition of costs related to obtaining customer contracts. In July 2015, the FASB approved the deferral of the new standard's effective date by one year. The new standard now is effective for annual reporting periods beginning January 1, 2018. The FASB will permit companies to adopt the new standard early, but not before the original effective date of January 1, 2017. The Company will adopt the standard on January 1, 2018, and currently anticipates adopting the standard using the modified retrospective method, which would result in a cumulative effect adjustment as of the date of adoption. The Company has established a team that is continuing to assess potential impacts of the standard on the timing of revenue recognition and accounting for deferred commission balances and whether the adoption will have a material impact on the consolidated financial statements and footnote disclosures. The Company has determined that there will be a change to the period over which sales commissions will be amortized to incorporate an estimated customer life, in addition to the initial contract period, and a change to the scope of capitalized sales commissions based on the definition of incremental costs of obtaining a contract. This will result in a higher capitalized commissions balance upon adoption. The amortization period is also expected to be longer than it currently is, which will reduce the expense in any one period as compared to today. In addition, there will be a change in relation to the timing of revenue recognition for certain sales contracts, where free or discounted services are bundled with our subscription offering due primarily to the removal of the current limitation on contingent revenue. This will accelerate revenue recognition on these contracts when these services are provided up front as compared to today. These changes are being evaluated to determine the potential impact to our financial statements and disclosures.

1. Organization and Operations

HubSpot, Inc. (the “Company”) was formed as a limited liability company in Delaware on April 4, 2005. The Company converted to a Delaware corporation on June 7, 2007. The Company provides a cloud-based inbound marketing and sales platform which features integrated applications to help businesses attract visitors to their websites, convert visitors into leads, close leads into customers and delight customers so they become promoters of those businesses. These integrated applications include social media, search engine optimization, blogging, website content management, marketing automation, email, CRM, analytics, and reporting.

The Company is headquartered in Cambridge, Massachusetts, and has wholly-owned subsidiaries in Dublin, Ireland, which commenced operations in January 2013, in Sydney, Australia, which commenced operations in August 2014, in Singapore, which commenced operations in October 2015, in Tokyo, Japan, which commenced operations in July 2016, and in Berlin, Germany, which commenced operations in July 2017.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission (“SEC”). In the opinion of management, the Company has prepared the accompanying unaudited consolidated financial statements on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the year ended December 31, 2016, and these consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation.

The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2017. The year-end balance sheet data was derived from audited financial statements, but this Form 10-Q does not include all disclosures required under GAAP. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted under the rules and regulations of the SEC.

These interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K filed with the SEC on February 16, 2017. There have been no changes in the Company’s significant accounting policies from those that were disclosed in the Company’s Annual Report on Form 10-K that have had a material impact on our consolidated financial statements and related notes, except the adoption of updated guidance related to certain aspects of share-based payments to employee described within the Recent Accounting Pronouncements below.

Recent Accounting Pronouncements

Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations.

The Company adopted updated guidance related to certain aspects of share-based payments to employees. The guidance requires the recognition of the income tax effects of awards in the income statement when the awards vest or are settled, thus eliminating additional paid-in capital pools. As a result of the adoption, we recorded an increase to deferred tax assets with a corresponding increase to the valuation allowance of $30.4 million to recognize net operating loss carryforwards attributable to excess tax benefits on stock compensation that had not been previously recognized as additional paid-in capital. In addition, the Company changed its policy election to account for forfeitures as they occur rather than on an estimated basis. The change in the policy election related to forfeitures resulted in the Company reclassifying $452 thousand from additional paid-in capital to accumulative deficit for the net cumulative-effect adjustment in stock compensation expense related to prior periods.

In January 2017, the FASB issued guidance, which clarifies the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The standard introduces a screen for determining when assets acquired are not a business and clarifies that a business must include, at a minimum, an input and a substantive process that contribute to an output to be considered a business. This standard is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period, and early adoption is permitted. The Company adopted this standard in the third quarter of 2017 and the adoption of this standard did not have a material impact on the consolidated financial statements.

In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under current guidance, Step 2 of the goodwill impairment test requires entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value is recognized as goodwill impairment. Under the new standard, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The new standard is effective beginning in January 2020, with early adoption permitted. We do not believe the adoption of this guidance will have a material impact on our consolidated financial statements.

In November 2016, the FASB issued guidance related to the presentation of restricted cash within the statement of cash flows. The guidance requires entities to show the changes in cash, cash equivalents, and restricted cash in the statement of cash flows. Entities will no longer present transfers between cash and cash equivalents and restricted cash in the statement of cash flows. As of September 30, 2017, we had $5.1 million in restricted cash. The new standard is effective beginning in the first quarter of 2018, with early adoption permitted. The Company is currently evaluating the impact of this guidance on the consolidated financial statements.

In February 2016, the FASB issued guidance that requires lessees to recognize most leases on their balance sheets but record expenses on their income statements in a manner similar to current accounting. For lessors, the guidance modifies the classification criteria and the accounting for sales-type and direct financing leases. The guidance is effective in 2019 with early adoption permitted. The Company is currently evaluating the impact of this guidance on the consolidated financial statements.

In May 2014, the FASB issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard also provides guidance on the recognition of costs related to obtaining customer contracts. In July 2015, the FASB approved the deferral of the new standard's effective date by one year. The new standard now is effective for annual reporting periods beginning January 1, 2018. The FASB will permit companies to adopt the new standard early, but not before the original effective date of January 1, 2017. The Company will adopt the standard on January 1, 2018, and currently anticipates adopting the standard using the modified retrospective method, which would result in a cumulative effect adjustment as of the date of adoption. The Company has established a team that is continuing to assess potential impacts of the standard on the timing of revenue recognition and accounting for deferred commission balances and whether the adoption will have a material impact on the consolidated financial statements and footnote disclosures. The Company has determined that there will be a change to the period over which sales commissions will be amortized to incorporate an estimated customer life, in addition to the initial contract period, and a change to the scope of capitalized sales commissions based on the definition of incremental costs of obtaining a contract. This will result in a higher capitalized commissions balance upon adoption. The amortization period is also expected to be longer than it currently is, which will reduce the expense in any one period as compared to today. In addition, there will be a change in relation to the timing of revenue recognition for certain sales contracts, where free or discounted services are bundled with our subscription offering due primarily to the removal of the current limitation on contingent revenue. This will accelerate revenue recognition on these contracts when these services are provided up front as compared to today. These changes are being evaluated to determine the potential impact to our financial statements and disclosures.