Summary of Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring accruals and adjustments) necessary for the fair statement of the Company’s financial position, results of operations and cash flows at the dates and for the periods indicated. The interim results for the three and nine months ended September 30, 2023 are not necessarily indicative of results for the full 2023 calendar year or any other future interim periods. The information included in the interim financial statements should be read in conjunction with the annual consolidated financial statements and accompanying notes included in the Form 10-K. The unaudited condensed consolidated financial statements include the accounts of American Well Corporation, its wholly-owned subsidiaries, those of professional corporations, which represent variable interest entities in which American Well has an interest and is the primary beneficiary (“PC”), and National Telehealth Network (“NTN”), an entity in which American Well controls fifty percent or more of the voting shares (see Note 4). Intercompany accounts and transactions have been eliminated in consolidation. The Company’s reporting currency is the U.S. dollar. The Company determines the functional currency of each subsidiary based on the currency of the primary economic environment in which each subsidiary operates. Items included in the financial statements of such subsidiaries are measured using that functional currency. Foreign currency denominated monetary assets and liabilities are remeasured into U.S. dollars at current exchange rates and foreign currency denominated nonmonetary assets and liabilities are remeasured into U.S. dollars at historical exchange rates. Gains or losses from foreign currency remeasurement and settlements are included in interest income and other income (expense), net in the condensed consolidated statements of operations and comprehensive loss. For consolidated entities where American Well owns or is exposed to less than 100% of the economics, the net loss attributable to noncontrolling interests is recorded in the condensed consolidated statements of operations and comprehensive loss equal to the percentage of the economic or ownership interest retained in each entity by the respective non-controlling party. The noncontrolling interests are presented as a separate component of stockholders’ deficit in the condensed consolidated balance sheets.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition, the estimated customer relationship period that is used in the amortization of deferred contract acquisition costs, the valuation of assets and liabilities acquired in business combinations, goodwill, the useful lives of intangible assets and property and equipment and the valuation of common stock awards. The Company bases its estimates on historical experience, known trends, and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. Actual results may differ from those estimates or assumptions.
Segment Information	Segment Information The Company’s chief operating decision makers (CODMs), its two Chief Executive Officers, review financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company operates and manages its business as one reportable and operating segment. In addition, substantially all of the Company’s revenue and long-lived assets are attributable to operations in the United States for all periods presented.
Variable Interest Entities	Variable Interest Entities The Company evaluates its ownership, contractual and other interests in entities to determine if it has any variable interest in a variable interest entity (“VIE”). These evaluations are complex and involve judgment. If the Company determines that an entity in which it holds a contractual or ownership interest is a VIE and that the Company is the primary beneficiary, the Company consolidates such entity in its condensed consolidated financial statements. The primary beneficiary of a VIE is the party that meets both of the following criteria: (i) has the power to make decisions that most significantly affect the economic performance of the VIE; and (ii) has the obligation to absorb losses or the right to receive benefits that in either case could potentially be significant to the VIE. Management performs ongoing reassessments of whether changes in the facts and circumstances regarding the Company’s involvement with a VIE will cause the consolidation conclusion to change. Changes in consolidation status are applied prospectively. The aggregate carrying value of total assets and total liabilities included on the condensed consolidated balance sheets for the PCs after elimination of intercompany transactions were $29,062 and $1,756, respectively, as of September 30, 2023 and $31,189 and $1,648, respectively as of December 31, 2022. Total revenue included on the condensed consolidated statements of operations and comprehensive loss for the PCs after elimination of intercompany transactions was $16,339 and $17,296 for the three months ended September 30, 2023 and 2022, respectively. Net loss included on the condensed consolidated statements of operations and comprehensive loss was not material for the three months ended September 30, 2023 and 2022. Total revenue included on the condensed consolidated statements of operations and comprehensive loss for the PCs after elimination of intercompany transactions was $52,814 and $53,088 for the nine months ended September 30, 2023 and 2022, respectively. Net loss included on the condensed consolidated statements of operations and comprehensive loss was not material for the nine months ended September 30, 2023 and 2022.
Investment in Minority Owned Joint Venture	Investment in Minority Owned Joint Venture The Company and Cleveland Clinic partnered to form a joint venture, under the name CCAW, JV LLC, to provide broad access to comprehensive and high acuity care services via digital care delivery. The Company does not have a controlling financial interest in CCAW, JV LLC, but it does have the ability to exercise significant influence over the operating and financial policies of CCAW, JV LLC. Therefore, the Company accounts for its investment in CCAW, JV LLC using the equity method of accounting. The joint venture is considered a variable interest entity under ASC 810-10, but the Company is not the primary beneficiary as it does not have the power to direct the activities of the joint venture that most significantly impact its performance. The Company’s evaluation of ability to impact performance is based on Cleveland Clinic’s managing directors and Cleveland Clinic’s ability to appoint and remove the chairperson who has the ability to cast the tie breaking vote on the most significant activities. In 2020, the Company contributed $2,940 as its initial investment for a 49% interest in CCAW, JV LLC. The agreement also requires aggregate total capital contributions by the Company up to an additional $11,800 in two phases, which is yet to be defined. In April 2022, the Company made a capital contribution of $1,960 related to a portion of the phase one capital commitment. During the nine months ended September 30, 2023, the Company made capital contributions of $3,920 related to a portion of the phase one capital commitment. There was no capital contribution made in the three months ended September 30, 2023. For the three months ended September 30, 2023 and 2022, the Company recognized a loss of $600 and $593 as its proportionate share of the joint venture’s results of operations, respectively. For the nine months ended September 30, 2023 and 2022, the Company recognized a loss of $1,877 and $1,355, respectively. Accordingly, the carrying value of the equity method investment as of September 30, 2023 and December 31, 2022 was $1,893 and $(150), respectively. As the share of losses exceeds the carrying amount of the investment, the carrying amount as of December 31, 2022 is included in the balance of accrued expenses and other current liabilities on the consolidated balance sheet.
Concentrations of Credit Risk and Significant Clients	Concentrations of Credit Risk and Significant Clients Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, investments and accounts receivable. The Company invests its excess cash with large financial institutions that the Company believes are of high credit quality. Cash and cash equivalents are invested in highly rated money market funds. At times, the Company’s cash balances with individual banking institutions are in excess of federally insured limits. The Company’s investments are invested in U.S. government agency bonds. The Company has not experienced any losses on its deposits of cash, cash equivalents or investments. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company performs ongoing assessments and credit evaluations of its clients to assess the collectability of the accounts based on a number of factors, including past transaction experience, age of the accounts receivable, review of the invoicing terms of the contracts, and recent communication with clients. The Company has not experienced significant credit losses from its accounts receivable. As of September 30, 2023, one client accounted for 14% of outstanding accounts receivable, and as of December 31, 2022, two clients each accounted for 18% of outstanding accounts receivable. During the three months ended September 30, 2023 and 2022, sales to one client represented 22% and 22% of the Company’s total revenue, respectively. During the nine months ended September 30, 2023 and 2022, sales to one customer represented 24% and 24% of the Company’s total revenue, respectively.
Goodwill	Goodwill We recognize the excess of the purchase price over the fair value of identifiable net assets acquired as goodwill. Goodwill is not amortized but is tested for impairment annually on November 30 or more frequently if events or changes in circumstances indicate that the carrying amount of the goodwill may not be recoverable. These events include: (i) severe adverse industry or economic trends; (ii) significant company-specific actions, including exiting an activity in conjunction with restructuring of operations; (iii) current, historical or projected deterioration of our financial performance; or (iv) a sustained decrease in our market capitalization, as indicated by the Company’s publicly quoted share price, below our net book value. Our goodwill impairment tests are performed at the enterprise level given our single reporting unit. When testing goodwill for impairment, we have the option of first performing a qualitative assessment to determine whether it is more likely than not that the fair value of our reporting unit is less than its carrying amount. If we elect to bypass the qualitative assessment, or if a qualitative assessment indicates it is more likely than not that carrying value exceeds its fair value, we perform a quantitative goodwill impairment test. Under the quantitative goodwill impairment test, if our reporting unit’s carrying amount exceeds its fair value, we will record an impairment charge based on that difference. A charge is reported as impairment of goodwill in the consolidated statements of operations and comprehensive loss. In the three and nine months ended September 30, 2023 there was an impairment of goodwill of $78,894 and $436,479, respectively, as our carrying value exceeded the fair value of our reporting unit. For details associated with the Company's interim goodwill impairment, see Note 7 - Goodwill and Intangible Assets. Fair value determination of our reporting unit requires considerable judgment and is sensitive to changes in underlying assumptions and factors. As a result, there can be no assurance that the estimates and assumptions made for purposes of the quantitative goodwill impairment tests will prove to be an accurate prediction of future results. Examples of events or circumstances that could reasonably be expected to negatively affect the underlying key assumptions and ultimately impact the estimated fair value of our reporting unit may include such items as: (i) severe adverse industry or economic trends; (ii) significant company-specific actions, including exiting an activity in conjunction with restructuring of operations; (iii) current, historical or projected deterioration of our financial performance; or (iv) a sustained decrease in our market capitalization, as indicated by the Company’s publicly quoted share price, below our net book value. In the event there is a further sustained decline in our stock price, future adverse changes in our projected cash flows, and/or changes in key assumptions, including but not limited to an increase in our discount rate and/or lower market multiples, we may be required conduct additional impairment testing of our goodwill, other intangibles and/or long-lived assets and subsequently record a non-cash impairment charge.
Intangible Assets	Intangible Assets Intangible assets acquired in a business combination are recognized at fair value using generally accepted valuation methods deemed appropriate for the type of intangible asset acquired and reported net of accumulated amortization, separately from goodwill. Finite-lived intangible assets, which primarily consist of customer relationships, contractor relationships, technology and trade name, are stated at historical cost and amortized over the assets’ estimated useful lives. Intangible assets are re-evaluated whenever events or changes in circumstances indicate that their estimated useful lives may require revision and/or the carrying value of the related asset group may not be recoverable by its projected undiscounted cash flows. If the carrying value of the asset group is determined to be unrecoverable, an impairment charge would be recognized in an amount equal to the amount by which the carrying value of the asset group exceeds its fair value. As of September 30, 2023 the Company concluded there was a triggering event and a recoverability test for intangible assets was performed. No impairment was identified as result of the recoverability test.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring accruals and adjustments) necessary for the fair statement of the Company’s financial position, results of operations and cash flows at the dates and for the periods indicated. The interim results for the three and nine months ended September 30, 2023 are not necessarily indicative of results for the full 2023 calendar year or any other future interim periods. The information included in the interim financial statements should be read in conjunction with the annual consolidated financial statements and accompanying notes included in the Form 10-K.

The unaudited condensed consolidated financial statements include the accounts of American Well Corporation, its wholly-owned subsidiaries, those of professional corporations, which represent variable interest entities in which American Well has an interest and is the primary beneficiary (“PC”), and National Telehealth Network (“NTN”), an entity in which American Well controls fifty percent or more of the voting shares (see Note 4). Intercompany accounts and transactions have been eliminated in consolidation.

The Company’s reporting currency is the U.S. dollar. The Company determines the functional currency of each subsidiary based on the currency of the primary economic environment in which each subsidiary operates. Items included in the financial statements of such subsidiaries are measured using that functional currency. Foreign currency denominated monetary assets and liabilities are remeasured into U.S. dollars at current exchange rates and foreign currency denominated nonmonetary assets and liabilities are remeasured into U.S. dollars at historical exchange rates. Gains or losses from foreign currency remeasurement and settlements are included in interest income and other income (expense), net in the condensed consolidated statements of operations and comprehensive loss.

For consolidated entities where American Well owns or is exposed to less than 100% of the economics, the net loss attributable to noncontrolling interests is recorded in the condensed consolidated statements of operations and comprehensive loss equal to the percentage of the economic or ownership interest retained in each entity by the respective non-controlling party. The noncontrolling interests are presented as a separate component of stockholders’ deficit in the condensed consolidated balance sheets.

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition, the estimated customer relationship period that is used in the amortization of deferred contract acquisition costs, the valuation of assets and liabilities acquired in business combinations, goodwill, the useful lives of intangible assets and property and equipment and the valuation of common stock awards. The Company bases its estimates on historical experience, known trends, and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. Actual results may differ from those estimates or assumptions.

Segment Information

The Company’s chief operating decision makers (CODMs), its two Chief Executive Officers, review financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company operates and manages its business as one reportable and operating segment. In addition, substantially all of the Company’s revenue and long-lived assets are attributable to operations in the United States for all periods presented.

Variable Interest Entities

The Company evaluates its ownership, contractual and other interests in entities to determine if it has any variable interest in a variable interest entity (“VIE”). These evaluations are complex and involve judgment. If the Company determines that an entity in which it holds a contractual or ownership interest is a VIE and that the Company is the primary beneficiary, the Company consolidates such entity in its condensed consolidated financial statements. The primary beneficiary of a VIE is the party that meets both of the following criteria: (i) has the power to make decisions that most significantly affect the economic performance of the VIE; and (ii) has the obligation to absorb losses or the right to receive benefits that in either case could potentially be significant to the VIE. Management performs ongoing reassessments of whether changes in the facts and circumstances regarding the Company’s involvement with a VIE will cause the consolidation conclusion to change. Changes in consolidation status are applied prospectively.

The aggregate carrying value of total assets and total liabilities included on the condensed consolidated balance sheets for the PCs after elimination of intercompany transactions were $29,062 and $1,756, respectively, as of September 30, 2023 and $31,189 and $1,648, respectively as of December 31, 2022.

Total revenue included on the condensed consolidated statements of operations and comprehensive loss for the PCs after elimination of intercompany transactions was $16,339 and $17,296 for the three months ended September 30, 2023 and 2022, respectively. Net loss included on the condensed consolidated statements of operations and comprehensive loss was not material for the three months ended September 30, 2023 and 2022. Total revenue included on the condensed consolidated statements of operations and comprehensive loss for the PCs after elimination of intercompany transactions was $52,814 and $53,088 for the nine months ended September 30, 2023 and 2022, respectively. Net loss included on the condensed consolidated statements of operations and comprehensive loss was not material for the nine months ended September 30, 2023 and 2022.

Investment in Minority Owned Joint Venture

The Company and Cleveland Clinic partnered to form a joint venture, under the name CCAW, JV LLC, to provide broad access to comprehensive and high acuity care services via digital care delivery. The Company does not have a controlling financial interest in CCAW, JV LLC, but it does have the ability to exercise significant influence over the operating and financial policies of CCAW, JV LLC. Therefore, the Company accounts for its investment in CCAW, JV LLC using the equity method of accounting. The joint venture is considered a variable interest entity under ASC 810-10, but the Company is not the primary beneficiary as it does not have the power to direct the activities of the joint venture that most significantly impact its performance. The Company’s evaluation of ability to impact performance is based on Cleveland Clinic’s managing directors and Cleveland Clinic’s ability to appoint and remove the chairperson who has the ability to cast the tie breaking vote on the most significant activities.

In 2020, the Company contributed $2,940 as its initial investment for a 49% interest in CCAW, JV LLC. The agreement also requires aggregate total capital contributions by the Company up to an additional $11,800 in two phases, which is yet to be defined. In April 2022, the Company made a capital contribution of $1,960 related to a portion of the phase one capital commitment. During the nine months ended September 30, 2023, the Company made capital contributions of $3,920 related to a portion of the phase one capital commitment. There was no capital contribution made in the three months ended September 30, 2023.

For the three months ended September 30, 2023 and 2022, the Company recognized a loss of $600 and $593 as its proportionate share of the joint venture’s results of operations, respectively. For the nine months ended September 30, 2023 and 2022, the Company recognized a loss of $1,877 and $1,355, respectively. Accordingly, the carrying value of the equity method investment as of September 30, 2023 and December 31, 2022 was $1,893 and $(150), respectively. As the share of losses exceeds the carrying amount of the investment, the carrying amount as of December 31, 2022 is included in the balance of accrued expenses and other current liabilities on the consolidated balance sheet.

Concentrations of Credit Risk and Significant Clients

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, investments and accounts receivable. The Company invests its excess cash with large financial institutions that the Company believes are of high credit quality. Cash and cash equivalents are invested in highly rated money market funds. At times, the Company’s cash balances with individual banking institutions are in excess of federally insured limits. The Company’s investments are invested in U.S. government agency bonds. The Company has not experienced any losses on its deposits of cash, cash equivalents or investments. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.

The Company performs ongoing assessments and credit evaluations of its clients to assess the collectability of the accounts based on a number of factors, including past transaction experience, age of the accounts receivable, review of the invoicing terms of the contracts, and recent communication with clients. The Company has not experienced significant credit losses from its accounts receivable. As of September 30, 2023, one client accounted for 14% of outstanding accounts receivable, and as of December 31, 2022, two clients each accounted for 18% of outstanding accounts receivable.

During the three months ended September 30, 2023 and 2022, sales to one client represented 22% and 22% of the Company’s total revenue, respectively. During the nine months ended September 30, 2023 and 2022, sales to one customer represented 24% and 24% of the Company’s total revenue, respectively.

Goodwill

We recognize the excess of the purchase price over the fair value of identifiable net assets acquired as goodwill. Goodwill is not amortized but is tested for impairment annually on November 30 or more frequently if events or changes in circumstances indicate that the carrying amount of the goodwill may not be recoverable. These events include: (i) severe adverse industry or economic trends; (ii) significant company-specific actions, including exiting an activity in conjunction with restructuring of operations; (iii) current, historical or projected deterioration of our financial performance; or (iv) a sustained decrease in our market capitalization, as indicated by the Company’s publicly quoted share price, below our net book value. Our goodwill impairment tests are performed at the enterprise level given our single reporting unit.

When testing goodwill for impairment, we have the option of first performing a qualitative assessment to determine whether it is more likely than not that the fair value of our reporting unit is less than its carrying amount. If we elect to bypass the qualitative assessment, or if a qualitative assessment indicates it is more likely than not that carrying value exceeds its fair value, we perform a quantitative goodwill impairment test. Under the quantitative goodwill impairment test, if our reporting unit’s carrying amount exceeds its fair value, we will record an impairment charge based on that difference. A charge is reported as impairment of goodwill in the consolidated statements of operations and comprehensive loss. In the three and nine months ended September 30, 2023 there was an impairment of goodwill of $78,894 and $436,479, respectively, as our carrying value exceeded the fair value of our reporting unit. For details associated with the Company's interim goodwill impairment, see Note 7 - Goodwill and Intangible Assets.

Fair value determination of our reporting unit requires considerable judgment and is sensitive to changes in underlying assumptions and factors. As a result, there can be no assurance that the estimates and assumptions made for purposes of the quantitative goodwill impairment tests will prove to be an accurate prediction of future results. Examples of events or circumstances that could reasonably be expected to negatively affect the underlying key assumptions and ultimately impact the estimated fair value of our reporting unit may include such items as: (i) severe adverse industry or economic trends; (ii) significant company-specific actions, including exiting an activity in conjunction with restructuring of operations; (iii) current, historical or projected deterioration of our financial performance; or (iv) a sustained decrease in our market capitalization, as indicated by the Company’s publicly quoted share price, below our net book value. In the event there is a further sustained decline in our stock price, future adverse changes in our projected cash flows, and/or changes in key assumptions, including but not limited to an increase in our discount rate and/or lower market multiples, we may be required conduct additional impairment testing of our goodwill, other intangibles and/or long-lived assets and subsequently record a non-cash impairment charge.

Intangible Assets

Intangible assets acquired in a business combination are recognized at fair value using generally accepted valuation methods deemed appropriate for the type of intangible asset acquired and reported net of accumulated amortization, separately from goodwill. Finite-lived intangible assets, which primarily consist of customer relationships, contractor relationships, technology and trade name, are stated at historical cost and amortized over the assets’ estimated useful lives. Intangible assets are re-evaluated whenever events or changes in circumstances indicate that their estimated useful lives may require revision and/or the carrying value of the related asset group may not be recoverable by its projected undiscounted cash flows. If the carrying value of the asset group is determined to be unrecoverable, an impairment charge would be recognized in an amount equal to the amount by which the carrying value of the asset group exceeds its fair value. As of September 30, 2023 the Company concluded there was a triggering event and a recoverability test for intangible assets was performed. No impairment was identified as result of the recoverability test.

- Definition

Disclosure of accounting policy for segment reporting.

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