Consolidated Statement of Other Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 17,682	$ 15,117
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	81	(1,620)
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	167	213
Income taxes on derivatives	(87)	518
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	161	(889)
Amortization to net income of prior service cost	(19)	(19)
Amortization to net income of actuarial loss	111	148
Income taxes on pension and other postretirement benefit plans	(24)	(32)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	68	97
Other Comprehensive Income (Loss), Net of Tax	229	(792)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Comprehensive income	17,911	14,325
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	24	35
Comprehensive income attributable to Core Laboratories N.V.	$ 17,887	$ 14,290