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Goodwill by Operating Segment (Detail) $ in Thousands | 9 Months Ended
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Sep. 30, 2015 USD ($)
Goodwill [Line Items] |
Beginning Balance | $ 210,795
Changes to goodwill | (124,561)
Ending Balance | 86,234
Contract Drilling |
Goodwill [Line Items] |
Beginning Balance | 86,234
Changes to goodwill | 0
Ending Balance | 86,234
Pressure Pumping |
Goodwill [Line Items] |
Beginning Balance | 124,561
Changes to goodwill | (124,561)
Ending Balance | $ 0

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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=35741047&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 increase (decrease) 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=35741047&loc=d3e13816-109267 + Details
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- Details
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- Details
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