Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Possible indemnification exposure, maximum	$ 25,000		$ 25,000
Proceeds from Legal Settlements	4,500
Deferred income tax asset and other current assets	744		744		$ 662
(Loss)/gain from discontinued operations, net of tax	$ (74)	$ (936)	$ 2,421	$ (998)