Summary Of Significant Accounting Policies (Summary Of Changes In The Carrying Amount Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013 Well Intervention [Member]		Dec. 31, 2012 Well Intervention [Member]		Dec. 31, 2013 Robotics [Member]	Dec. 31, 2012 Robotics [Member]	Dec. 31, 2011 Robotics [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 62,935		$ 62,215		$ 17,828		$ 17,108		$ 45,107	$ 45,107	$ 45,107
Goodwill, Other Changes	295	[1]	720	[1]	295	[1]	720	[1]
Goodwill, Ending Balance	$ 63,230		$ 62,935		$ 18,123		$ 17,828		$ 45,107	$ 45,107	$ 45,107

[1] Reflects foreign currency adjustment for certain amounts of our goodwill.