Dispositions (Schedule of Discontinued Operations Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenue from discontinued operations	$ 0	$ 0	$ 0	$ 0
Loss from Discontinued Operations		(142)		(503)
Oman [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Loss from Discontinued Operations		(2)		(27)
Colombia [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Loss from Discontinued Operations		$ (140)		$ (476)