Basis of Preparation and Summary of Significant Accounting Policies	3 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Preparation and Summary of Significant Accounting Policies	Note 2. Basis of Preparation and Summary of Significant Accounting Policies The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial reporting and in accordance with Article 10 of Regulation S-X. Accordingly, they do not include all of the information and note disclosures required by GAAP for complete financial statements. These statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2020 that has been filed with the SEC. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all normal and recurring adjustments that are necessary for a fair presentation of results for the interim periods presented. The results of operations for any interim period may not be indicative of results for the full fiscal year or any other subsequent period. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results may differ from these estimates. There have been no changes in the Company’s significant accounting policies for the three months ended June 30, 2020 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2020 that has been filed with the SEC. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results may differ from these estimates. COVID-19 Pandemic The Company is subject to risks and uncertainties as a result of the COVID-19 pandemic. The extent of the impact of the COVID-19 pandemic on the Company's business is highly uncertain and difficult to predict, as the response to the pandemic is developing and information is rapidly evolving. Considerable uncertainty still surrounds the COVID-19 virus and its potential effects, and the extent of and effectiveness of responses taken on international, national and local levels. Measures taken to limit the impact of COVID-19, including shelter-in-place orders, social distancing measures, travel bans and restrictions, and business and government shutdowns, continue to create significant negative economic impacts on a global basis. Due to these impacts and measures, the Company has experienced, and may continue to experience, significant and unpredictable reductions in the demand for its products as healthcare customers divert medical resources and priorities towards the treatment of COVID-19. In addition, the Company’s customers may delay, cancel, or redirect planned purchases in order to focus resources on COVID-19 or in response to economic disruption related to COVID-19. Beginning in mid-March 2020 and continuing into the first quarter of fiscal 2021, the Company experienced a significant decline in patient utilization in the U.S., Europe and Japan as healthcare systems diverted resources to meet the increasing demands of managing COVID-19. The Company also experienced temporary delays in clinical trial enrollment or encountered interruption or delays in the operations of FDA or other regulatory authorities due to the COVID-19 pandemic, which may impact review and approval timelines. The severity of the impact of the COVID-19 pandemic on the Company’s business will depend on a number of factors, including, but not limited to, the duration and severity of the pandemic and the extent and severity of the impact on its customers, all of which are uncertain and cannot be predicted. Impella procedure volumes have varied greatly since the end of March 2020 by geography, and even by hospital, as patients and their physicians managed through the COVID-19 pandemic. In the last few weeks of the fourth quarter of fiscal 2020, procedure volumes related to the Company’s Impella products dropped significantly. Worldwide Impella heart pump revenue was impacted by lower patient utilization in the first quarter of fiscal 2021 due to the impact of the COVID-19 pandemic on elective medical procedures, surgeries and fewer patients seeking treatment at hospitals. Total revenue for the three months ended June 30, 2020 decreased by $42.8 million, or 21%, to $164.9 million from $207.7 million for the three months ended June 30, 2019. The decrease in total revenue was due to lower utilization caused by the impact of COVID-19 on hospitals in the first quarter of fiscal 2021. During the first quarter of fiscal 2021, patient procedure volume trends began to improve gradually over the course of the quarter as both demand for procedures and availability of healthcare resources began to return to more normalized, pre-COVID-19 levels. The Company’s business was most impacted in April, in terms of the decline in patients and revenue from the shelter-in-place restrictions in a majority of countries and limitations on procedures in hospitals. The Company experienced sequential improvement globally in May and June as restrictions were lifted and limitations eased. In the month of June specifically, the Company experienced year over year growth in both patients and revenue in U.S., Germany, and Japan. While the Company currently expects to see sequential quarterly improvement in the remainder of fiscal 2021, the COVID-19 pandemic remains fluid and continues to evolve differently across various geographies. The Company believes it is likely to continue to experience variable impacts on its business based on some of the resurgence that occurring in cities across the globe. Given the uncertainty, the Company cannot reliably estimate the extent to which the COVID-19 pandemic may continue to impact patient utilization and revenues of its products in the second quarter of fiscal 2021 and beyond. The Company is closely monitoring the impact of COVID-19 on all aspects of its business and geographies, including the impact on its customers, employees, suppliers, vendors, business partners and distribution channels. The extent to which the COVID-19 global pandemic impacts the Company’s business, results of operations, and financial condition will depend on future developments, which are highly uncertain and are difficult to predict; these developments include, but are not limited to, the duration and spread of the outbreak, its severity, the actions to contain the virus or address its impact, U.S. and foreign government actions to respond to the reduction in global economic activity, and how quickly and to what extent normal economic and operating conditions can resume. Even after the COVID-19 outbreak has subsided, the Company may continue to experience materially adverse impacts on its financial condition and results of operations. As of the date of issuance of these consolidated financial statements, the extent to which the COVID-19 pandemic may materially impact the Company's financial condition, liquidity, or results of operations is uncertain. Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326).” This new standard requires financial instruments to be measured at amortized cost, and accounts receivables to be presented at the net amount expected to be collected. The new model requires an entity to estimate credit losses based on historical information, current information, and reasonable and supportable forecasts, including estimates of prepayments. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350).” This new standard simplifies the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test, which required companies to estimate the implied fair value of goodwill and recognize an impairment charge by the amount in which the carrying value exceeds the implied fair value. Under the new guidance, if the carrying value of a reporting unit exceeds its fair value, a goodwill impairment charge will be recorded, even if the difference is attributable to the fair value of other assets in the reporting unit. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820).” This new standard modifies the disclosure requirements on fair value measurements, including the removal of disclosures of the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, the policy for timing of transfers between levels, and the valuation processes for Level 3 fair value measurements. The guidance also adds certain disclosure requirements related to Level 3 fair value measurements. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Effective In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740).” This amendment to the guidance on income taxes is intended to simplify the accounting for income taxes. The amendment eliminates certain exceptions related to the approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The amendment also clarifies existing guidance related to the evaluation of a step up in the tax basis of goodwill and the effects of enacted changes in tax laws or rates in the effective tax rate computation, among other clarifications. The Company does not expect the adoption of this standard to have a material impact on its consolidated financial statements. ASU 2019-12 will become effective for the Company in fiscal 2022. In January 2020, the FASB issued ASU 2020-01, “Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815),” an amendment clarifying the interaction between accounting standards related to equity securities, equity method investments, and certain derivative instruments. The guidance is effective for fiscal years beginning after December 15, 2020. ASU 2020-01 will become effective for the Company in fiscal 2022.

Basis of Preparation and Summary of Significant Accounting Policies

3 Months Ended

Jun. 30, 2020

Basis of Preparation and Summary of Significant Accounting Policies

Note 2. Basis of Preparation and Summary of Significant Accounting Policies

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial reporting and in accordance with Article 10 of Regulation S-X. Accordingly, they do not include all of the information and note disclosures required by GAAP for complete financial statements. These statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2020 that has been filed with the SEC.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all normal and recurring adjustments that are necessary for a fair presentation of results for the interim periods presented. The results of operations for any interim period may not be indicative of results for the full fiscal year or any other subsequent period. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results may differ from these estimates.

There have been no changes in the Company’s significant accounting policies for the three months ended June 30, 2020 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2020 that has been filed with the SEC.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results may differ from these estimates.

COVID-19 Pandemic

The Company is subject to risks and uncertainties as a result of the COVID-19 pandemic. The extent of the impact of the COVID-19 pandemic on the Company's business is highly uncertain and difficult to predict, as the response to the pandemic is developing and information is rapidly evolving. Considerable uncertainty still surrounds the COVID-19 virus and its potential effects, and the extent of and effectiveness of responses taken on international, national and local levels. Measures taken to limit the impact of COVID-19, including shelter-in-place orders, social distancing measures, travel bans and restrictions, and business and government shutdowns, continue to create significant negative economic impacts on a global basis.

Due to these impacts and measures, the Company has experienced, and may continue to experience, significant and unpredictable reductions in the demand for its products as healthcare customers divert medical resources and priorities towards the treatment of COVID-19. In addition, the Company’s customers may delay, cancel, or redirect planned purchases in order to focus resources on COVID-19 or in response to economic disruption related to COVID-19. Beginning in mid-March 2020 and continuing into the first quarter of fiscal 2021, the Company experienced a significant decline in patient utilization in the U.S., Europe and Japan as healthcare systems diverted resources to meet the increasing demands of managing COVID-19. The Company also experienced temporary delays in clinical trial enrollment or encountered interruption or delays in the operations of FDA or other regulatory authorities due to the COVID-19 pandemic, which may impact review and approval timelines. The severity of the impact of the COVID-19 pandemic on the Company’s business will depend on a number of factors, including, but not limited to, the duration and severity of the pandemic and the extent and severity of the impact on its customers, all of which are uncertain and cannot be predicted.

Impella procedure volumes have varied greatly since the end of March 2020 by geography, and even by hospital, as patients and their physicians managed through the COVID-19 pandemic. In the last few weeks of the fourth quarter of fiscal 2020, procedure volumes related to the Company’s Impella products dropped significantly. Worldwide Impella heart pump revenue was impacted by lower patient utilization in the first quarter of fiscal 2021 due to the impact of the COVID-19 pandemic on elective medical procedures, surgeries and fewer patients seeking treatment at hospitals. Total revenue for the three months ended June 30, 2020 decreased by $42.8 million, or 21%, to $164.9 million from $207.7 million for the three months ended June 30, 2019. The decrease in total revenue was due to lower utilization caused by the impact of COVID-19 on hospitals in the first quarter of fiscal 2021.

During the first quarter of fiscal 2021, patient procedure volume trends began to improve gradually over the course of the quarter as both demand for procedures and availability of healthcare resources began to return to more normalized, pre-COVID-19

levels. The Company’s business was most impacted in April, in terms of the decline in patients and revenue from the shelter-in-place restrictions in a majority of countries and limitations on procedures in hospitals. The Company experienced sequential improvement globally in May and June as restrictions were lifted and limitations eased. In the month of June specifically, the Company experienced year over year growth in both patients and revenue in U.S., Germany, and Japan.

While the Company currently expects to see sequential quarterly improvement in the remainder of fiscal 2021, the COVID-19 pandemic remains fluid and continues to evolve differently across various geographies. The Company believes it is likely to continue to experience variable impacts on its business based on some of the resurgence that occurring in cities across the globe. Given the uncertainty, the Company cannot reliably estimate the extent to which the COVID-19 pandemic may continue to impact patient utilization and revenues of its products in the second quarter of fiscal 2021 and beyond.

The Company is closely monitoring the impact of COVID-19 on all aspects of its business and geographies, including the impact on its customers, employees, suppliers, vendors, business partners and distribution channels. The extent to which the COVID-19 global pandemic impacts the Company’s business, results of operations, and financial condition will depend on future developments, which are highly uncertain and are difficult to predict; these developments include, but are not limited to, the duration and spread of the outbreak, its severity, the actions to contain the virus or address its impact, U.S. and foreign government actions to respond to the reduction in global economic activity, and how quickly and to what extent normal economic and operating conditions can resume. Even after the COVID-19 outbreak has subsided, the Company may continue to experience materially adverse impacts on its financial condition and results of operations. As of the date of issuance of these consolidated financial statements, the extent to which the COVID-19 pandemic may materially impact the Company's financial condition, liquidity, or results of operations is uncertain.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326).” This new standard requires financial instruments to be measured at amortized cost, and accounts receivables to be presented at the net amount expected to be collected. The new model requires an entity to estimate credit losses based on historical information, current information, and reasonable and supportable forecasts, including estimates of prepayments. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350).” This new standard simplifies the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test, which required companies to estimate the implied fair value of goodwill and recognize an impairment charge by the amount in which the carrying value exceeds the implied fair value. Under the new guidance, if the carrying value of a reporting unit exceeds its fair value, a goodwill impairment charge will be recorded, even if the difference is attributable to the fair value of other assets in the reporting unit. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820).” This new standard modifies the disclosure requirements on fair value measurements, including the removal of disclosures of the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, the policy for timing of transfers between levels, and the valuation processes for Level 3 fair value measurements. The guidance also adds certain disclosure requirements related to Level 3 fair value measurements. The Company adopted this standard in the first quarter of fiscal 2021, and it did not have a material impact on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements Not Yet Effective

In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740).” This amendment to the guidance on income taxes is intended to simplify the accounting for income taxes. The amendment eliminates certain exceptions related to the approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The amendment also clarifies existing guidance related to the evaluation of a step up in the tax basis of goodwill and the effects of enacted changes in tax laws or rates in the effective tax rate computation, among other clarifications. The Company does not expect the adoption of this standard to have a material impact on its consolidated financial statements. ASU 2019-12 will become effective for the Company in fiscal 2022.

In January 2020, the FASB issued ASU 2020-01, “Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815),” an amendment clarifying the interaction between accounting standards related to equity securities, equity method investments, and certain derivative instruments. The guidance is effective for fiscal years beginning after December 15, 2020. ASU 2020-01 will become effective for the Company in fiscal 2022.