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Description of Business | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [Abstract] |
Description of Business | 1. Description of Business Business — MannKind Corporation and its subsidiaries (the “Company”) is a biopharmaceutical company focused on the development and commercialization of inhaled therapeutic products for patients with endocrine and orphan lung diseases. The Company’s lead product is Afrezza (insulin human) Inhalation Powder, an ultra rapid-acting inhaled insulin indicated to improve glycemic control in adults with diabetes, which was approved by the U.S. Food and Drug Administration (“FDA”) in June 2014. The Company collaborates with a number of third parties to formulate their drugs on the Company’s Technosphere drug delivery platform. Since September 2018, the Company has been collaborating with United Therapeutics Corporation (“United Therapeutics” or “UT”) to develop an inhaled formulation of treprostinil, known as Tyvaso DPI. In April 2021, United Therapeutics submitted a new drug application (“NDA”) to the FDA seeking approval of Tyvaso DPI for the treatment of PAH and PH-ILD. The NDA was resubmitted in December 2021 following a complete response letter in October 2021. The FDA is expected to complete its review of the NDA for Tyvaso DPI by May 2022. Basis of Presentation — The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The Company is not currently profitable and has rarely generated positive net cash flow from operations. In addition, the Company expects to continue to incur significant expenditures for the foreseeable future in support of its manufacturing operations, sales and marketing costs for Afrezza, and development of other product candidates in the Company’s pipeline. As of December 31, 2021, the Company had capital resources of $124.2 million in cash and cash equivalents, $79.9 million in short-term investments, $56.6 million in long-term investments, an accumulated deficit of $3.1 billion and $288.4 million of total principal amount of outstanding borrowings. In August 2019, the Company and its wholly owned subsidiaries, entered into a credit and security agreement with MidCap Financial Trust (as amended, the “MidCap Credit Facility”). The MidCap Credit Facility currently provides a secured term loan facility with a potential aggregate principal amount of up to $100.0 million, of which $40.0 million was outstanding as of December 31, 2021. See Note 7 – Borrowings. In March 2021, the Company issued $230.0 million of 2.50% convertible senior notes due 2026 (the “Senior convertible notes”) to provide additional operating capital and pay down higher cost debt. The Company believes its resources will be sufficient to fund its operations for the next twelve months from the date of issuance of these consolidated financial statements. Principles of Consolidation — The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated. Certain prior year amounts have been reclassified for consistency with the current year presentation. Changes were made to the consolidated statement of operations to disclose a single caption for interest expense on all outstanding notes. Changes were also made to Note 6 – Accrued Expenses and Other Current Liability to combine accruals for certain services into the Other line. In addition, changes were made to Note 2 – Summary of Significant Accounting Policies and Note 9 – Fair Value of Financial Instruments to conform the presentation of certain short-term investments to the current year presentation. Segment Information — Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker in making decisions regarding resource allocation and assessing performance. To date, the Company has viewed its operations and manages its business as one segment operating in the United States of America.

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- Definition The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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