Consolidated Statement of Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net income	$ 31,042	$ 61,153
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	(1,140)	0
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	243	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(897)	0
Amortization to net income of transition asset	(22)	(22)
Amortization to net income of prior service cost	(19)	2
Amortization to net income of actuarial loss	183	135
Income taxes on pension and other postretirement benefit plans	(35)	(29)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	107	86
Other Comprehensive Income (Loss), Net of Tax	(790)	86
Comprehensive income	30,252	61,239
Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest	(357)	89
Comprehensive income attributable to Core Laboratories N.V.	$ 30,609	$ 61,150