Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2019

NOTE 5. FAIR VALUE OF FINANCIAL INSTRUMENTS

The following tables represent the financial instruments measured at fair value on a recurring basis on the financial statements of the Company and the valuation approach applied to each class of financial instruments at December 31 (see Note 2, Summary of Significant Accounting Policies for further information):



	2019
	(in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash and cash equivalents:
Money market funds	$	43,745	$	—	$	—	$	43,745
Commercial paper	—		1,993		—		1,993
Corporate notes and bonds	—		1,006		—		1,006
Total cash and cash equivalents	$	43,745	$	2,999	$	—	$	46,744
Investments:
Certificates of deposit	—		5,663		—		5,663
US Treasury securities	12,579		—		—		12,579
US Agency securities	—		3,998		—		3,998
Commercial paper	—		2,491		—		2,491
Corporate notes and bonds	—		22,706		—		22,706
Total investments	12,579		34,858		—		47,437
Total assets measured at fair value	$	56,324	$	37,857	$	—	$	94,181



	2018
	(in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash and cash equivalents:
Money market funds	$	38,444	$	—	$	—	$	38,444
Commercial paper	—		1,493		—		1,493
Total cash and cash equivalents	$	38,444	$	1,493	$	—	$	39,937
Investments:
Certificates of deposit	—		10,787		—		10,787
US Treasury securities	22,120		—		—		22,120
US Agency securities	—		7,980		—		7,980
Commercial paper	—		17,025		—		17,025
Asset-backed securities	—		11,998		—		11,998
Corporate notes and bonds	—		30,308		—		30,308
Total investments	22,120		78,098		—		100,218
Total assets measured at fair value	$	60,564	$	79,591	$	—	$	140,155

Highly liquid investments with an original maturity of three months or less at time of purchase are included in cash and cash equivalents on the consolidated balance sheet.

Level 1 assets are priced using quoted prices in active markets for identical assets which include money market funds and U.S. Treasury securities as these specific assets are liquid.

Level 2 available-for-sale securities are priced using quoted market prices for similar instruments or nonbinding market prices that are corroborated by observable market data. The Company uses inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, independent pricing vendors, or other sources, to determine the ultimate fair value of these assets and liabilities. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs. There were no transfers between levels during the year ended December 31, 2019.

On March 27, 2018, the Company issued $150 million aggregate principal amount of 2.50% Convertible Senior Notes due 2023 (“Notes”). In connection with the offering of the Notes, the Company granted the initial purchasers of the Notes a 13-day option to purchase up to an additional $22.5 million aggregate principal amount of the Notes on the same terms and conditions. On April 4, 2018 the option was partially exercised, which resulted in $21.5 million of additional proceeds, for total proceeds of $171.5 million, as described in Note 11, Convertible Notes. As of December 31, 2019 and 2018, the calculated fair value of the Notes were $133.8 million and $121.4 million, respectively. The Notes are highly correlated to the Company’s stock price and as a result, significant changes to the Company’s stock price will have a significant impact on the calculated fair value of the Notes. The fair value of the Notes are classified as Level 2 within the fair value hierarchy.

For certain other financial assets and liabilities, including accounts receivable, accounts payable and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances.

- 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.

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