Consolidated Statement of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUES:
Revenue	$ 169,038	$ 175,475	$ 338,232	$ 345,493
OPERATING EXPENSES:
General and administrative expense, exclusive of depreciation expense shown below	9,801	12,202	27,238	24,911
Depreciation	5,193	5,628	10,432	11,210
Amortization	593	240	941	476
Other (income) expense, net	992	183	3,365	40
OPERATING INCOME	28,008	33,449	44,422	65,765
Interest expense	3,714	3,296	7,440	6,416
Income from continuing operations before income tax expense	24,294	30,153	36,982	59,349
Income tax expense (benefit)	4,808	5,020	(22,802)	10,293
Income from continuing operations	19,486	25,133	59,784	49,056
Income (loss) from discontinued operations, net of income taxes	7,971	(328)	8,230	(674)
Net income	27,457	24,805	68,014	48,382
Net income attributable to non-controlling interest	43	53	90	103
Net income attributable to Core Laboratories N.V.	$ 27,414	$ 24,752	$ 67,924	$ 48,279
EARNINGS (LOSS) PER SHARE INFORMATION:
Basic earnings per share from continuing operations (in dollar per share)	$ 0.44	$ 0.57	$ 1.35	$ 1.11
Basic earnings (loss) per share from discontinued operations	0.18	(0.01)	0.18	(0.02)
Basic earnings per share attributable to Core Laboratories N.V. (in dollar per share)	0.62	0.56	1.53	1.09
Diluted earnings per share from continuing operations (in dollar per share)	0.43	0.57	1.33	1.10
Diluted earnings (loss) per share from discontinued operations	0.18	(0.01)	0.18	(0.02)
Diluted earnings per share attributable to Core Laboratories N.V. (in dollar per share)	$ 0.61	$ 0.56	$ 1.51	$ 1.08
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	44,354	44,203	44,339	44,191
Diluted (in shares)	44,815	44,493	44,848	44,515
Service [Member]
REVENUES:
Revenue	$ 117,874	$ 122,094	$ 238,212	$ 241,880
OPERATING EXPENSES:
Cost of services and product sales exclusive of depreciation expense shown below	86,007	86,759	176,373	170,047
Product [Member]
REVENUES:
Revenue	51,164	53,381	100,020	103,613
OPERATING EXPENSES:
Cost of services and product sales exclusive of depreciation expense shown below	$ 38,444	$ 37,014	$ 75,461	$ 73,044