Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value, Assets and Liabilities Measured on Recurring Basis

The following tables summarize assets and liabilities measured at fair value on a recurring basis:

	As of December 31, 2021
	Total		Quoted market prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In thousands)
Assets:
Cash equivalents: money-market funds	$	108,441	$	108,441	$	—	$	—
Trading securities: mutual funds⁽¹⁾		6,814		6,814		—		—
Available-for-sale investments: corporate equity securities⁽¹⁾		751		751		—		—
Available-for-sale investments: certificates of deposit⁽¹⁾		6		—		6		—
Available-for-sale investments: convertible debt securities⁽²⁾		518		—		518		—
Foreign currency forward contracts⁽³⁾		1,372	—			1,372		—
Total assets measured at fair value	$	117,902	$	116,006	$	1,896	$	—
Liabilities:
Foreign currency forward contracts⁽⁴⁾	$	344	$	—	$	344	$	—
Total liabilities measured at fair value	$	344	$	—	$	344	$	—

	As of December 31, 2020
	Total		Quoted market prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In thousands)
Assets:
Cash equivalents: money-market funds	$	158,054	$	158,054	$	—	$	—
Trading securities: mutual funds⁽¹⁾		5,368		5,368		—		—
Available-for-sale investments: convertible debt securities ⁽¹⁾		1,326		—		—		1,326
Available-for-sale investments: certificates of deposit⁽¹⁾		165		—		165		—
Foreign currency forward contracts⁽³⁾		324	—			324		—
Total assets measured at fair value	$	165,237	$	163,422	$	489	$	1,326
Liabilities:
Foreign currency forward contracts⁽⁴⁾	$	2,382	$	—	$	2,382	$	—
Contingent consideration⁽⁵⁾		3,000		—		—		3,000
Total liabilities measured at fair value	$	5,382	$	—	$	2,382	$	3,000

⁽¹⁾	Included in Short-term investments on the Company’s consolidated balance sheets.

⁽²⁾	$172,000 and $346,000 included in Short-term investments and Other non-current assets on the Company’s consolidated balance sheets, respectively.

⁽³⁾	Included in Prepaid expenses and other current assets on the Company’s consolidated balance sheets.

⁽⁴⁾	Included in Other accrued liabilities on the Company’s consolidated balance sheets.

⁽⁵⁾

^{Included in Other non-current accrued liabilities on the Company’s consolidated balance sheets. The contingent consideration represented the estimated fair value of the additional variable cash consideration payable in connection with the acquisition of Meural in August 2018 that was contingent upon the achievement of certain technical and service revenue milestones.}