Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Notional Amounts of Derivative Instruments Outstanding

The notional amounts of the Company's derivative instruments outstanding were as follows (in thousands):

	December 31,
	2017		2016
Derivatives not designated as hedges
Foreign exchange contracts	$	3,979	$	4,541
Total derivatives not designated as hedges	$	3,979	$	4,541