Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Company's Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016, and indicate the fair value hierarchy of the valuation techniques utilized to determine such fair value (in thousands):

	Fair Value Measurement at June 30, 2017
	Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash equivalents	$	15,895	$	—	$	—	$	15,895
Marketable securities:
U.S. government agency securities and treasuries		29,990		4,995		—		34,985
Total assets	$	45,885	$	4,995	$	—	$	50,880

	Fair Value Measurement at December 31, 2016
	Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash equivalents	$	56,147	$	—	$	—	$	56,147
Marketable securities:
U.S. government agency securities and treasuries		71,999		7,403		—	$	79,402
Total	$	128,146	$	7,403	$	—	$	135,549