Consolidated Statement of Other Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 33,594	$ 66,650	$ 99,338	$ 191,899
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	(1,475)	0	(1,880)	0
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	246	0	734	0
Income taxes on derivatives	455	0	822	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(774)	0	(324)	0
Amortization to net income of transition asset	(22)	(21)	(66)	(65)
Amortization to net income of prior service cost	(21)	2	(59)	5
Amortization to net income of actuarial loss	181	135	548	405
Income taxes on pension and other postretirement benefit plans	(33)	(29)	(106)	(86)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	105	87	317	259
Other Comprehensive Income (Loss), Net of Tax	(669)	87	(7)	259
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Comprehensive income	32,925	66,737	99,331	192,158
Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest	190	153	(91)	604
Comprehensive income attributable to Core Laboratories N.V.	$ 32,735	$ 66,584	$ 99,422	$ 191,554