Derivative Financial Instruments - (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Financial Instruments [Abstract]

Schedule Of Contracts Designated And Not Designated As Hedged Instruments

	September 30, 2017
	Notional	Latest
	Amount	Maturity
Foreign exchange contracts - Norwegian Kroner	7,449	February 2018
Foreign exchange contracts - Canadian Dollars	13,345	February 2019
Foreign exchange contracts - British Pounds	2,343	February 2019
Foreign exchange contracts - Euros	22,200	February 2019

	December 31, 2016
	Notional	Latest
	Amount	Maturity
Foreign exchange contracts - Canadian Dollars	11,001	February 2018
Foreign exchange contracts - British Pounds	1,842	February 2018
Foreign exchange contracts - Euros	14,366	February 2018

Schedule Of Derivative Instruments Fair Value And Balance Sheet Classification

	Classification	September 30, 2017		December 31, 2016
Derivative instruments in asset positions:
Forward exchange contracts	Prepaid and other current assets	$	69	$	1,165
Forward exchange contracts	Other long-term assets	$	12	$	116
Derivative instruments in liability positions:
Forward exchange contracts	Accounts payable and accrued liabilities	$	1,284	$	-
Forward exchange contracts	Other long-term liabilities	$	150	$	-