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Short-Term and Long-Term Investments (Tables)

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Summary of Investment

Details of our investments are as follows (in thousands):

		December 31, 2020
		Cash and Cash Equivalents				Short-Term Investments				Long-Term Investments
Measured at fair value:
Available-for-sale debt securities:
Money Market Funds		$	69,493			$	—			$	—
U.S. Treasury Obligations			19,998				50,166				—
Failed Auction Security			—				—				2,517
Total			89,491				50,166				2,517
Other measurement basis:
Cash on hand			72,251				—				—
Total		$	161,742			$	50,166			$	2,517

		December 31, 2019
		Cash and Cash Equivalents				Short-Term Investments				Long-Term Investments
Measured at fair value:
Available-for-sale debt securities:
Money Market Funds		$	9,630			$	—			$	—
Failed Auction Security			—				—				2,510
Total			9,630				—				2,510
Other measurement basis:
Cash on hand			75,038				—				—
Total		$	84,668			$	—			$	2,510

Summary of Available-for-Sale Securities

The following is a summary of the available-for-sale securities (in thousands):

December 31, 2020		Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
U.S. Treasury Obligations		$	70,172			$	—			$	8			$	70,164
Failed Auction Security			3,000				—				483				2,517

December 31, 2019
Failed Auction Security		$	3,000			$	—			$	490			$	2,510

Cost and Estimated Fair Value of Failed Auction Security by Contractual Maturities

The amortized cost and estimated fair value of the available-for-sale securities on December 31, 2020, by type and contractual maturities, are shown below (in thousands):

U.S. Treasury Obligations:
		Cost				Estimated Fair Value
Maturities greater than three months but less than one year		$	50,174			$	50,166
Maturities less than three months			19,998				19,998
		$	70,172			$	70,164
Failed Auction Security:
		Cost				Estimated Fair Value
Due in twenty to forty years		$	3,000			$	2,517

Rollforward of Credit (Gain) Loss Recognized in Earnings on Failed Auction Security

The following table represents a rollforward of the activity related to the credit loss recognized in earnings on the Failed Auction Security held by the Company for the years ended December 31 (in thousands):

		2020				2019				2018
Balance at the beginning of the period		$	37			$	41			$	48
Reductions in the amount related to credit gain for which other-than-temporary impairment was not previously recognized			(4	)			(4	)			(7	)
Balance at the end of the period		$	33			$	37			$	41

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- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

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Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income.

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-Topic 320
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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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