Statement of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
REVENUES:
Sales Revenue, Services, Net	$ 693,895	$ 621,752	$ 568,220
Sales Revenue, Goods, Net	287,185	285,896	226,433
Total Revenue	981,080	907,648	794,653
OPERATING EXPENSES:
Cost of services, exclusive of depreciation shown below	413,086	395,303	356,563
Cost of product sales, exclusive of depreciation shown below	208,733	198,066	157,227
General and administrative expenses, exclusive of depreciation shown below	43,185	41,141	33,029
Depreciation	21,762	22,126	21,820
Amortization	1,155	1,177	1,293
Other (income) expense, net	(4,121)	(919)	(2,205)
Income Before Interest Expense and Taxes	297,280	250,754	226,926
Loss on exchange of Senior Exchangeable Notes	0	1,012	1,939
Interest expense	8,820	10,900	15,839
Income before income tax expense	288,460	238,842	209,148
Income Tax Expense (Benefit)	71,848	54,198	63,747
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	216,612	184,644	145,401
Net Income (Loss) Attributable to Noncontrolling Interest	541	(40)	484
Net income attributable to Core Laboratories N.V.	$ 216,071	$ 184,684	$ 144,917
EARNINGS PER SHARE INFORMATION:
Earnings Per Share, Basic	$ 4.58	$ 3.99	$ 3.23
Earnings Per Share, Diluted	$ 4.54	$ 3.82	$ 3.00
Cash dividends per share	$ 1.12	$ 1.00	$ 0.890
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Weighted Average Number of Shares Outstanding, Basic	47,211	46,286	44,830
Weighted Average Number of Shares Outstanding, Diluted	47,553	48,393	48,241