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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis included the following as of December 31, 2018 (in thousands):
 

		Using
		Quoted Prices in Active Markets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)				Total Fair Value as of December 31, 2018
Cash equivalents:
Money market funds		$	9,433			$	—			$	—			$	9,433
Long-term investments:
Failed Auction Security			—				—				2,526				2,526
Liabilities:
Contingent consideration obligations			—				—				(408	)			(408	)

Assets measured at fair value on a recurring basis included the following as of December 31, 2017 (in thousands):

		Using
		Quoted Prices in Active Markets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)				Total Fair Value as of December 31, 2017
Cash equivalents:
Money market funds		$	9,279			$	—			$	—			$	9,279
Long-term investments:
Failed Auction Security			—				—				2,525				2,525
Liabilities:
Contingent consideration obligation			—				—				(678	)			(678	)

Quantitative Information about Level 3 Fair Value Measurements

		Fair Value				Valuation Technique				Unobservable Input				Weighted Average
Failed Auction Security		$	2,526			Discounted cash flow					Cumulative probability of earning the maximum rate until maturity				0.08	%
											Cumulative probability of principal return prior to maturity				93.69	%
											Cumulative probability of default				6.24	%
											Liquidity risk premium				5.00	%
											Recovery rate in default				40.00	%

Change in Estimated Fair Values Calculated for Investment Valued on Recurring Basis Utilizing Level 3 Inputs

The change in the estimated fair value calculated for the investment valued on a recurring basis utilizing Level 3 inputs (i.e., the Failed Auction Security) for the year ended December 31, 2018 was as follows (in thousands):

Balance at the beginning of the period		$	2,525
Credit gain on available-for-sale security included in Other income (expense), net			7
Gain included in Other comprehensive income (loss)			(6	)
Balance at the end of the period		$	2,526

Change in Estimated Fair Value Calculated for Liabilities Valued on Recurring Basis Utilizing Level 3 Inputs

The change in the estimated fair value calculated for the liabilities valued on a recurring basis utilizing Level 3 inputs (i.e., the Contingent consideration obligations) for the year ended December 31, 2018 was as follows (in thousands):

Balance at the beginning of the period		$	678
Payments			(270	)
Balance at the end of the period		$	408

X

- Definition

Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

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