Goodwill (Schedule Of Goodwill) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Balance	$ 91,234
Additions (note 23)	19,739
Foreign exchange movement	603
Goodwill, Balance	$ 111,576