Consolidated Balance Sheets Statement (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Cash and Cash Equivalents, at Carrying Value	$ 23,537	$ 29,332
Accounts Receivable, Net	171,656	170,805
Inventory, Net	58,119	53,214
Prepaid Expense and Other Assets	31,014	27,463
TOTAL CURRENT ASSETS	284,326	280,814
Property, Plant and Equipment, Net	114,812	115,295
Intangible Assets, Net (Excluding Goodwill)	8,082	8,221
Goodwill	162,781	162,787
Deferred Tax Assets, Net, Noncurrent	13,086	13,662
Other Assets, Noncurrent	27,591	24,360
TOTAL ASSETS	610,678	605,139
Accounts Payable, Current	48,189	57,639
Employee-related Liabilities, Current	24,754	34,028
Sales and Excise Tax Payable, Current	8,437	8,566
Deferred Revenue, Current	25,757	19,154
Taxes Payable, Current	9,478	793
Convertible Debt, Current	1,487	2,344
Other Accrued Liabilities, Current	13,571	14,937
TOTAL CURRENT LIABILITIES	131,673	137,461
LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS	198,066	223,075
Deferred Compensation Liability, Classified, Noncurrent	26,478	24,117
Deferred Tax Liabilities, Noncurrent	4,534	5,531
Other Liabilities, Noncurrent	35,663	33,300
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	1,376	1,376
Additional Paid in Capital, Common Stock	5,589	2,012
Retained Earnings (Accumulated Deficit)	324,277	283,660
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,725)	(1,739)
Treasury shares (at cost), xxx at 2011 and 4,218,726 at 2010	(118,984)	(107,406)
Total Core Laboratories N.V. shareholders' equity	210,533	177,903
Stockholders' Equity Attributable to Noncontrolling Interest	3,731	3,752
TOTAL EQUITY	214,264	181,655
TOTAL LIABILITIES AND EQUITY	$ 610,678	$ 605,139