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Summary Of Significant Accounting Policies (Summary Of Changes In The Carrying Amount Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  |
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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.

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of other (increase) decrease of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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