Consolidated Statements of Operations Statement - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUE:
Services	$ 124,145	$ 117,285	$ 366,025	$ 354,827
Product sales	58,001	45,602	161,614	122,881
Total revenue	182,146	162,887	527,639	477,708
OPERATING EXPENSES:
Cost of services, exclusive of depreciation expense shown below	88,435	83,715	258,482	247,357
Cost of product sales, exclusive of depreciation expense shown below	39,744	34,646	112,788	97,659
General and administrative expense, exclusive of depreciation expense shown below	13,278	11,887	38,189	35,743
Depreciation	5,436	5,743	16,646	17,802
Amortization	244	250	720	684
Other (income) expense, net	130	(23)	170	900
OPERATING INCOME	34,879	26,669	100,644	77,563
Interest expense	3,278	2,707	9,694	8,017
Income from continuing operations before income tax expense	31,601	23,962	90,950	69,546
Income tax expense	9,404	3,595	19,697	10,233
Income from continuing operations	22,197	20,367	71,253	59,313
Income from discontinued operations, net of income taxes	208	686	(466)	2,131
Net income	22,405	21,053	70,787	61,444
Net income attributable to non-controlling interest	(7)	(33)	96	10
Net income attributable to Core Laboratories N.V.	$ 22,412	$ 21,086	$ 70,691	$ 61,434
EARNINGS PER SHARE INFORMATION:
Basic earnings per share from continuing operations (in dollar per share)	$ 0.50	$ 0.46	$ 1.61	$ 1.34
Basic earnings (loss) per share from discontinued operations (in dollar per share)	0.01	0.02	(0.01)	0.05
Basic earnings per share attributable to Core Laboratories N.V. (in dollar per share)	0.51	0.48	1.60	1.39
Diluted earnings per share from continuing operations (in dollar per share)	0.50	0.46	1.60	1.34
Diluted earnings (loss) per share from discontinued operations (in dollar per share)	0.00	0.02	(0.01)	0.05
Diluted earnings per share attributable to Core Laboratories N.V. (in dollar per share)	0.50	0.48	1.59	1.39
Cash dividends per share (in dollars per share)	$ 0.55	$ 0.55	$ 1.65	$ 1.65
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	44,216	44,141	44,199	44,155
Diluted (in shares)	44,591	44,332	44,613	44,335