Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Schedule of assets and liabilities measured at fair value on a recurring basis

The following tables represent the fair value hierarchy as of March 31, 2019 and December 31, 2018, for those assets and liabilities that we measure at fair value on a recurring basis (in thousands):



	Fair Value Measurements at March 31, 2019 Using:
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash equivalents	$	15,930	$	15,930	$	—	$	—
Corporate debt securities	109,236		—		109,236		—
U.S. treasury and government agency securities	6,357		—		6,357		—
Certificates of deposit	11,500		—		11,500		—
Commercial paper	1,500		—		1,500		—
Total assets	$	144,523	$	15,930	$	128,593	$	—
Liabilities:
Contingent consideration - MuGard	$	336	$	—	$	—	$	336
Total liabilities	$	336	$	—	$	—	$	336



	Fair Value Measurements at December 31, 2018 Using:
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash equivalents	$	71,568	$	71,568	$	—	$	—
Corporate debt securities	113,097		—		113,097		—
U.S. treasury and government agency securities	10,323		—		10,323		—
Certificates of deposit	13,500		—		13,500		—
Commercial paper	3,995		—		3,995		—
Total assets	$	212,483	$	71,568	$	140,915	$	—
Liabilities:
Contingent consideration - MuGard	359		—		—		359
Total liabilities	$	359	$	—	$	—	$	359

Schedule of reconciliation of contingent consideration obligations

The following table presents a reconciliation of contingent consideration obligations related to the acquisition of the MuGard Rights (in thousands):



Balance as of December 31, 2018	$	359
Payments made	(17		)
Adjustments to fair value of contingent consideration	(6		)
Balance as of March 31, 2019	$	336