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Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of fair value of financial assets and liabilities by level

		Fair Value as of December 31, 2017
Description			Level 1		Level 2		Total
Assets
	Money market funds (1)	$	49,102	$	—	$	49,102
	Derivative financial instruments	$	—	$	—	$	—

		Fair Value as of December 31, 2016
Description			Level 1		Level 2		Total
Assets
	Money market funds (1)	$	12,997	$	—	$	12,997
	Derivative financial instruments	$	—	$	752	$	752

(1) Included in Cash and cash equivalents along with $58.8 million and $70.7 million of demand deposits as of December 31, 2017 and 2016, respectively.