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Stock-based Compensation Stock Based Compensation Phantom (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Options Plans, by Exercise Price Range, Range 1 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansByExercisePriceRangeRange1Member		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionsPlansByExercisePriceRangeRange1Member		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Range 2 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange2Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange2Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Range 3 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange3Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange3Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Range 4 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange4Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange4Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Range 5 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange5Member
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit   $ 0.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= clb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeRange5Member