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Fair Value of Financial Instruments | 3 Months Ended
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Mar. 31, 2021
Fair Value Disclosures [Abstract] |
Fair Value of Financial Instruments | 8. Fair Value of Financial Instruments The availability of observable inputs can vary among the various types of financial assets and liabilities. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for financial statement disclosure purposes, the level in the fair value hierarchy within which the fair value measurement is categorized is based on the lowest level input that is significant to the overall fair value measurement. The Company uses the exit price method for estimating the fair value of loans for disclosure purposes. The carrying amounts reported in the accompanying condensed consolidated financial statements for cash, accounts receivable, accounts payable, and accrued expenses and other current liabilities (excluding the Milestone Rights liability) approximate their fair value due to their relatively short maturities. The fair value of the cash equivalents, MidCap credit facility, Mann Group promissory notes, 2024 convertible notes, Senior convertible notes and Milestone Rights liabilities are disclosed below. Cash Equivalents and Restricted Cash— Cash equivalents consist of highly liquid investments with original or remaining maturities of 90 days or less at the time of purchase that are readily convertible into cash. As of March 31, 2021 and December 31, 2020, the Company held $247.8 million and $67.0 million, respectively, of cash and cash equivalents. The Company held $0.2 million in restricted cash as of March 31, 2021 and December 31, 2020, which are comprised of money market funds. Restricted cash is used to collateralize a letter of credit. The fair value of these money market funds was determined by using quoted prices for identical investments in an active market (Level 1 in the fair value hierarchy). Investments — Investments consist of highly liquid investments that are intended to facilitate liquidity and capital preservation. The fair value of investments approximates their carrying value. The measurement of which is based on a market approach using quoted market values (Level 1 in the fair value hierarchy). As of March 31, 2021, the Company held $29.0 million of short-term investments and $1.5 million of long-term investments. Financial Liabilities — The following tables set forth the fair value of the Company’s financial instruments (Level 3 in the fair value hierarchy) (in millions):
|  | March 31, 2021 |
|  | Carrying Value |  |  | Significant Unobservable Inputs (Level 3) |  |  | Fair Value |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Senior convertible notes(1) |  | $ | 222.9 |  |  | $ | 209.7 |  |  | $ | 209.7 |
MidCap credit facility(2) |  |  | 49.4 |  |  |  | 52.7 |  |  |  | 52.7 |
Mann Group convertible notes(3) |  |  | 18.4 |  |  |  | 42.2 |  |  |  | 42.2 |
Mann Group non-convertible notes(4) |  |  | 35.1 |  |  |  | 31.5 |  |  |  | 31.5 |
PPP loan(5) |  |  | 4.9 |  |  |  | 4.8 |  |  |  | 4.8 |
Milestone rights(6) |  |  | 7.3 |  |  |  | 12.6 |  |  |  | 12.6 |
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| (1) | Fair value determined by applying a discounted cash flow analysis to the straight note with a hypothetical yield of 14% and a Monte Carlo simulation for the value of the conversion feature. A change in yield of + or – 2% would result in a fair value of $199.0 million and $221.6 million, respectively.
| (2) | Fair value determined by applying a discounted cash flow analysis with a hypothetical yield of 10%. A change in yield of + or – 2% would result in a fair value of $50.7 million and $54.8 million, respectively.
| (3) | Fair value determined by applying a discounted cash flow analysis with a hypothetical yield of 14% to the straight note and a binomial option pricing model for the value of the conversion feature. A change in yield of + or – 2% would result in a fair value of $41.3 million and $43.2 million, respectively.
| (4) | Fair value determined by applying a discounted cash flow analysis with a hypothetical yield of 14%. A change in yield of + or – 2% would result in a fair value of $29.6 million and $33.6 million, respectively.
| (5) | Fair value determined by applying a discounted cash flow analysis with a hypothetical yield of 10%. A change in yield of + or – 2% would result in a fair value of $4.8 million and $4.8 million, respectively.
| (6) | Fair value determined by applying a Monte Carlo simulation.
|  | December 31, 2020 |
|  | Carrying Value |  |  | Significant Unobservable Inputs (Level 3) |  |  | Fair Value |
Financial liabilities:(1) |  |  |  |  |  |  |  |  |  |  |  |
MidCap credit facility |  | $ | 49.3 |  |  | $ | 55.4 |  |  | $ | 55.4 |
Mann Group promissory notes(2) |  |  | 63.0 |  |  |  | 78.9 |  |  |  | 78.9 |
2024 convertible notes |  |  | 5.0 |  |  |  | 7.0 |  |  |  | 7.0 |
PPP loan |  |  | 4.9 |  |  |  | 4.7 |  |  |  | 4.7 |
Milestone rights |  |  | 7.3 |  |  |  | 19.8 |  |  |  | 19.8 |
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| (1) | Fair value measurements were based on a discounted cash flow model, except for the Milestone rights for which a Monte Carlo simulation was applied.
| (2) | Mann Group promissory notes consisted of the following carrying values and fair values:
Mann Group convertible notes carrying value of $28.0 million and fair value of $52.2 million. Mann Group non-convertible notes carrying value of $35.1 million and fair value of $26.7 million. Milestone Rights Liability — The fair value measurement of the Milestone Rights liability is sensitive to the discount rate and the timing of achievement of milestones. The Company utilized Monte-Carlo Simulation Method to simulate the Net Sales under a neutral framework to estimate the payment. The Company then discounted the future expected payments at cost of debt with a term equal to the simulated time to payout based on cumulative sales.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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