Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Assets measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 were as follows (in thousands):

	June 30, 2018
	Level 1		Level 2			Level 3		Total
Assets:
Cash Equivalents
Money market funds	$	1,821	$	—		$	—	$	1,821
Commercial paper	—		4,990			—		4,990
Total cash equivalents	1,821		4,990			—		6,811
Available-for-Sale Securities
Certificates of deposit(1)	—		20,380			—		20,380
Corporate bonds	—		24,631			—		24,631
U.S. government bonds	—		14,976			—		14,976
Total available-for-sale securities	—		59,987			—		59,987
Derivatives
Interest rate swap contract	—		561			—		561
Total derivatives	—		561			—		561
Total assets measured at fair value	$	1,821	$	65,538		$	—	$	67,359
Liabilities:
Derivatives
Foreign currency forward contracts	$	—	$	(667	)	$	—	$	(667	)
Total liabilities measured at fair value	$	—	$	(667	)	$	—	$	(667	)

	December 31, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Cash Equivalents
Money market funds	$	10,946	$	—	$	—	$	10,946
Commercial paper	—		1,996		—		1,996
Total cash equivalents	10,946		1,996		—		12,942
Available-for-Sale Securities
Certificates of deposit(1)	—		19,875		—		19,875
Corporate bonds	—		29,239		—		29,239
U.S. government bonds	—		8,189		—		8,189
Total available-for-sale securities	—		57,303		—		57,303
Derivatives
Interest rate swap contract	—		372		—		372
Foreign currency forward contracts	—		390		—		390
Total derivatives	—		762		—		762
Total assets measured at fair value	$	10,946	$	60,061	$	—	$	71,007

⁽¹⁾ All certificates of deposit are within current FDIC insurance limits.