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Note 4 - Fair Value Measurements (Details) (USD $)
0 Months Ended 3 Months Ended 12 Months Ended
Nov. 30, 2014
Dec. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Note 4 - Fair Value Measurements (Details) [Line Items]          
Long-term Debt, Fair Value   $ 775,000,000us-gaap_LongTermDebtFairValue $ 775,000,000us-gaap_LongTermDebtFairValue    
Goodwill, Gross   45,260,000us-gaap_GoodwillGross 45,260,000us-gaap_GoodwillGross 261,056,000us-gaap_GoodwillGross 295,132,000us-gaap_GoodwillGross
Goodwill, Impairment Loss 202,700,000us-gaap_GoodwillImpairmentLoss 202,700,000us-gaap_GoodwillImpairmentLoss      
Other Asset Impairment Charges     78,800,000us-gaap_OtherAssetImpairmentCharges    
Impairment of Intangible Assets (Excluding Goodwill)   76,200,000us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill 76,200,000us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill    
U.S. and Australian Segments [Member]          
Note 4 - Fair Value Measurements (Details) [Line Items]          
Goodwill, Gross   202,700,000us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cveo_USAndAustralianSegmentsMember
202,700,000us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cveo_USAndAustralianSegmentsMember
   
Goodwill, Fair Value Disclosure   0us-gaap_GoodwillFairValueDisclosure
/ us-gaap_StatementBusinessSegmentsAxis
= cveo_USAndAustralianSegmentsMember
0us-gaap_GoodwillFairValueDisclosure
/ us-gaap_StatementBusinessSegmentsAxis
= cveo_USAndAustralianSegmentsMember
   
Goodwill, Impairment Loss     $ 202,700,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cveo_USAndAustralianSegmentsMember