Consolidated Statement of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
REVENUES:
Revenue	$ 700,846	$ 647,819	$ 590,232
OPERATING EXPENSES:
Cost of services, exclusive of depreciation shown below	343,833	333,365	329,520
Cost of product sales, exclusive of depreciation shown below	153,131	131,593	107,983
General and administrative expenses, exclusive of depreciation shown below	62,910	47,737	39,390
Depreciation	22,013	23,605	25,445
Amortization	1,074	919	843
Other (income) expense, net	(737)	632	(400)
OPERATING INCOME	118,622	109,968	87,451
Interest expense	13,328	10,734	11,572
Income before income tax expense	105,294	99,234	75,879
Income tax expense	25,447	18,249	10,855
Income from continuing operations	79,847	80,985	65,024
Income (loss) from discontinued operations	(58)	2,111	(1,165)
Net income	79,789	83,096	63,859
Net income (loss) attributable to non-controlling interest	263	(29)	(36)
Net income attributable to Core Laboratories N.V.	$ 79,526	$ 83,125	$ 63,895
EARNINGS PER SHARE INFORMATION:
Basic earnings per share from continuing operations (in dollar per share)	$ 1.81	$ 1.83	$ 1.50
Basic earnings (loss) per share from discontinued operations (in dollar per share)	(0.01)	0.05	(0.03)
Basic earnings per share attributable to Core Laboratories N.V. (in dollar per share)	1.80	1.88	1.47
Diluted earnings per share from continuing operations (in dollar per share)	1.80	1.83	1.49
Diluted earnings (loss) per share from discontinued operations (in dollar per share)	(0.01)	0.05	(0.03)
Diluted earnings per share attributable to Core Laboratories N.V. (in dollar per share)	1.79	1.88	1.46
Cash dividends per share (in dollar per share)	$ 2.20	$ 2.20	$ 2.20
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	44,206	44,153	43,479
Diluted (in shares)	44,474	44,264	43,670
Service [Member]
REVENUES:
Revenue	$ 486,820	$ 480,264	$ 468,388
Product [Member]
REVENUES:
Revenue	$ 214,026	$ 167,555	$ 121,844