Core Laboratories (CLB) 10-Q 4 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 03, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'CORE LABORATORIES N V	'
Entity Central Index Key	'0001000229	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	43,796,660

Consolidated_Balance_Sheets_St

Consolidated Balance Sheets Statement (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS:	'	'
Cash and cash equivalents	$25,307	$25,088
Accounts receivable, net of allowance for doubtful accounts of $3,526 and $2,872 at 2014 and 2013, respectively	201,769	201,322
Inventories	49,451	46,821
Prepaid expenses	14,398	13,128
Income taxes receivable	9,041	5,294
Other current assets	11,302	12,215
TOTAL CURRENT ASSETS	311,268	303,868
PROPERTY, PLANT AND EQUIPMENT, net	146,951	138,824
INTANGIBLES, net	10,867	10,949
GOODWILL	164,472	163,337
DEFERRED TAX ASSETS, net	7,167	4,452
OTHER ASSETS	44,407	39,580
TOTAL ASSETS	685,132	661,010
CURRENT LIABILITIES:	'	'
Accounts payable	49,648	50,821
Accrued payroll and related costs	34,096	38,969
Taxes other than payroll and income	11,308	6,979
Unearned revenue	11,045	10,887
Income taxes payable	5,746	14,462
Other accrued expenses	15,194	13,657
TOTAL CURRENT LIABILITIES	127,037	135,775
LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS	370,000	267,002
DEFERRED COMPENSATION	41,681	38,014
DEFERRED TAX LIABILITIES, net	5,685	8,870
OTHER LONG-TERM LIABILITIES	38,954	41,960
COMMITMENTS AND CONTINGENCIES (Note 6)	'	'
Preference shares, EUR 0.02 par value; 6,000,000 shares authorized, none issued or outstanding	0	0
Common shares, EUR 0.02 par value; 200,000,000 shares authorized, 45,600,002 issued and 43,934,396 outstanding at 2014 and 46,750,002 issued and 45,101,389 outstanding at 2013	1,174	1,203
Additional paid-in capital	2,013	0
Retained earnings	384,335	415,930
Accumulated other comprehensive income (loss)	-8,368	-8,626
Treasury shares (at cost), 1,665,606 at 2014 and 1,648,613 at 2013	-283,656	-245,184
Total Core Laboratories N.V. shareholders' equity	95,498	163,323
Non-controlling interest	6,277	6,066
TOTAL EQUITY	101,775	169,389
TOTAL LIABILITIES AND EQUITY	$685,132	$661,010

Consolidated_Balance_Sheets_Ba

Consolidated Balance Sheets Balance Sheet Parenthetical	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	USD ($)	EUR (€)	USD ($)	EUR (€)
Allowance for Doubtful Accounts Receivable, Current	$3,526	'	$2,872	'
Common Stock, Par or Stated Value Per Share	'	€ 0.02	'	€ 0.02
Common Stock, Shares Authorized	200,000,000	200,000,000	200,000,000	200,000,000
Common Stock, Shares, Issued	45,600,002	45,600,002	46,750,002	46,750,002
Common Stock, Shares, Outstanding	43,934,396	43,934,396	45,101,389	45,101,389
Treasury Stock, Shares	1,665,606	1,665,606	1,648,613	1,648,613
Preferred Stock, Par or Stated Value Per Share	'	€ 0.02	'	€ 0.02
Preferred Stock, Shares Authorized	6,000,000	6,000,000	6,000,000	6,000,000
Preferred Stock, Shares Issued	0	0	0	0
Preferred Stock, Shares Outstanding	0	0	0	0

Consolidated_Statements_of_Ope

Consolidated Statements of Operations Statement (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
REVENUE:	'	'	'	'
Services	$203,578	$194,267	$580,612	$564,424
Product sales	72,557	78,896	225,988	232,805
Total revenue	276,135	273,163	806,600	797,229
OPERATING EXPENSES:	'	'	'	'
Cost of services, exclusive of depreciation expense shown below	113,917	110,087	336,194	329,901
Cost of product sales, exclusive of depreciation expense shown below	53,010	57,340	160,560	164,674
General and administrative expense, exclusive of depreciation expense shown below	12,316	14,346	33,983	38,328
Depreciation	6,362	6,396	18,731	17,775
Amortization	483	357	1,065	967
Other (income) expense, net	927	41	-14	82
OPERATING INCOME	89,120	84,596	256,081	245,502
Interest expense	2,561	2,302	7,718	6,834
Income before income tax expense	86,559	82,294	248,363	238,668
Income tax expense	19,909	20,490	56,464	60,190
Net income	66,650	61,804	191,899	178,478
Net income (loss) attributable to non-controlling interest	153	-91	604	391
Net income attributable to Core Laboratories N.V.	$66,497	$61,895	$191,295	$178,087
EARNINGS PER SHARE INFORMATION:	'	'	'	'
Basic earnings per share attributable to Core Laboratories N.V. (in dollars per share)	$1.51	$1.36	$4.29	$3.88
Diluted earnings per share attributable to Core Laboratories N.V. (in dollars per share)	$1.50	$1.35	$4.27	$3.86
Cash dividends per share (in dollars per share)	$0.50	$0.32	$1.50	$0.96
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:	'	'	'	'
Basic	44,152	45,526	44,571	45,854
Diluted	44,381	45,828	44,823	46,150

Consolidated_Statement_of_Othe

Consolidated Statement of Other Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income	$66,650	$61,804	$191,899	$178,478
Amortization to net income of transition asset	-21	-21	-65	-65
Amortization to net income of prior service cost	2	39	5	119
Amortization to net income of actuarial loss	135	117	405	351
Income taxes on pension and other postretirement benefit plans	-29	-33	-86	-101
Comprehensive income	66,737	61,906	192,158	178,782
Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest	153	-91	604	391
Comprehensive income attributable to Core Laboratories N.V.	$66,584	$61,997	$191,554	$178,391

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows Statement (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net income (loss)	$191,899	$178,478
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Stock-based compensation	15,497	15,408
Depreciation and amortization	19,796	18,742
Debt Issuance Cost	341	360
(Increase) decrease in value of life insurance policies	-724	-3,194
Deferred income taxes	-190	6,212
Other non-cash items	728	316
Changes in assets and liabilities:	'	'
Accounts receivable	-959	-20,425
Inventories	-3,053	-5,143
Prepaid expenses and other current assets	-7,041	14,595
Other assets	1,529	-414
Accounts payable	-2,171	-1,506
Accrued expenses	-10,604	1,788
Increase (Decrease) in Deferred Revenue	158	-1,361
Other long-term liabilities	453	6,792
Net cash provided by operating activities	205,659	210,648
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Capital expenditures	-27,624	-26,988
Patents and other intangibles	-753	-3,083
Business acquisition, net of cash acquired	-1,200	0
Payments for (Proceeds from) Investments	0	-50
Proceeds from sale of assets	1,098	852
Premiums on life insurance	-3,482	-2,553
Net cash used in investing activities	-31,961	-31,822
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Repayment of debt borrowings	-57,157	-51,035
Proceeds from debt borrowings	160,000	73,000
Stock options exercised	0	83
Excess tax benefits from stock-based compensation	2,680	2,500
Debt financing costs	-1,054	0
Non-controlling interest - dividend	-393	0
Payments of Dividends	67,153	44,125
Repurchase of common shares	-210,402	-156,271
Net cash used in financing activities	-173,479	-175,848
NET CHANGE IN CASH AND CASH EQUIVALENTS	219	2,978
CASH AND CASH EQUIVALENTS, beginning of period	25,088	19,226
CASH AND CASH EQUIVALENTS, end of period	$25,307	$22,204

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation	'
	BASIS OF PRESENTATION
	The accompanying unaudited consolidated financial statements include the accounts of Core Laboratories N.V. and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. These financial statements have been prepared in accordance with United States ("U.S.") generally accepted accounting principles ("GAAP") for interim financial information using the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all of the information and footnote disclosures required by U.S. GAAP and should be read in conjunction with the audited financial statements and the summary of significant accounting policies and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013 (the "2013 Annual Report").
	Core Laboratories N.V. uses the equity method of accounting for investments in which it has less than a majority interest and over which it does not exercise control but does exert significant influence. We use the cost method to record certain other investments in which we own less than 20% of the outstanding equity and do not exercise control or exert significant influence. Non-controlling interests have been recorded to reflect outside ownership attributable to consolidated subsidiaries that are less than 100% owned. In the opinion of management, all adjustments considered necessary for a fair statement of the results for the interim periods presented have been included in these financial statements. Furthermore, the operating results presented for the three and nine months ended September 30, 2014 may not necessarily be indicative of the results that may be expected for the year ended December 31, 2014.
	Core Laboratories N.V.'s balance sheet information for the year ended December 31, 2013 was derived from the 2013 audited consolidated financial statements but does not include all disclosures in accordance with U.S. GAAP.
	Certain reclassifications were made to prior period amounts in order to conform to the current period presentation. These reclassifications had no impact on the reported net income or cash flows for the three and nine months ended September 30, 2013.
	References to "Core Lab", the "Company", "we", "our" and similar phrases are used throughout this Quarterly Report on Form 10-Q and relate collectively to Core Laboratories N.V. and its consolidated subsidiaries.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	INVENTORIES
	Inventories consist of the following (in thousands):
		September 30,		December 31,
		2014		2013
		(Unaudited)
	Finished goods	$	36,119	$	37,143
	Parts and materials	10,720		8,323
	Work in progress	2,612		1,355
	Total inventories	$	49,451	$	46,821
	We include freight costs incurred for shipping inventory to customers in the Cost of product sales line of the Consolidated Statements of Operations.

Goodwill_and_Intangibles

Goodwill and Intangibles	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangibles	'
	GOODWILL AND INTANGIBLES
	We account for intangible assets with indefinite lives, including goodwill, in accordance with the applicable accounting guidance, which requires us to evaluate these assets for impairment annually or more frequently if an indication of impairment is possible. Based upon our most recent evaluation at the end of 2013, we determined that intangible assets, including goodwill, are not impaired. We amortize intangible assets with a finite life on a straight-line basis over their respective useful lives.

Debt_and_Capital_Lease_Obligat

Debt and Capital Lease Obligations	9 Months Ended
	Sep. 30, 2014
Debt and Capital Lease Obligations [Abstract]	'
Debt and Capital Lease Obligations	'
	DEBT AND CAPITAL LEASE OBLIGATIONS
	Debt is summarized in the following table (in thousands):
		September 30,		December 31,
		2014		2013
		(Unaudited)
	Senior notes	$	150,000	$	150,000
	Credit facility	220,000		117,000
	Capital lease obligations	5		28
	Total debt	370,005		267,028
	Less - current maturities of long-term debt and capital lease obligations	5		26
	Long-term debt and capital lease obligations, net	$	370,000	$	267,002
	In 2011, we issued two series of senior notes with an aggregate principal amount of $150 million ("Senior Notes") in a private placement transaction. Series A consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.01% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.
	On August 29, 2014, we entered into an agreement to amend our revolving credit facility (the "Credit Facility") to increase the aggregate borrowing capacity from $300 million to $350 million and to increase the uncommitted availability an additional $50 million to bring the total borrowings available to $400 million if certain prescribed conditions are met by the Company. The variable rate was reduced from LIBOR plus 1.5% to LIBOR plus 1.25%. The maturity date was extended from September 28, 2016 to August 29, 2019.
	The Credit Facility carries an aggregate borrowing capacity of $350 million and provides an option to increase the commitment to $400 million, if certain conditions are met. The Credit Facility bears interest at variable rates from LIBOR plus 1.25% to a maximum of LIBOR plus 2.00%. Any outstanding balance under the Credit Facility is due August 29, 2019, when the Credit Facility matures. Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity at any point in time is reduced by borrowings outstanding at the time and outstanding letters of credit which totaled $25.5 million at September 30, 2014, resulting in an available borrowing capacity under the Credit Facility of $104.5 million. In addition to those items under the Credit Facility, we had $19.5 million of outstanding letters of credit and performance guarantees and bonds from other sources as of September 30, 2014.
	The terms of the Credit Facility and the Senior Notes require us to meet certain covenants, including, but not limited to, certain minimum equity and cash flow ratios. We believe that we are in compliance with all such covenants contained in our credit agreements. Certain of our material, wholly-owned subsidiaries are guarantors or co-borrowers under the Credit Facility and Senior Notes.
	In October 2014, we entered into two interest rate swap agreements for a total notional amount of $50 million to hedge changes in the variable rate interest expense on $50 million of our existing or replacement LIBOR-priced debt. Under the first swap agreement of $25 million, which is effective through August 29, 2024, we will receive interest at one-month LIBOR and will pay interest at a fixed rate of 2.50%, resulting in a total fixed rate of 3.75% for this amount of debt. Under the second swap agreement of $25 million, which is effective through August 29, 2019, we will receive interest at one-month LIBOR and will pay interest at a fixed rate of 1.73%, resulting in a total fixed rate of 2.98% for this amount of debt. Both of these swaps are designated and qualify as cash flow hedging instruments, resulting in no effect to the Consolidated Statements of Operations or earnings per share.
	The estimated fair value of total debt at September 30, 2014 and December 31, 2013 approximated the book value of total debt. The fair value was estimated using Level 2 inputs by calculating the sum of the discounted future interest and principal payments through the date of maturity.

Pensions_and_Other_Postretirem

Pensions and Other Postretirement Benefits	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Pensions and Other Postretirement Benefits	'
	PENSIONS AND OTHER POSTRETIREMENT BENEFITS
	Defined Benefit Plan
	We provide a non-contributory defined benefit pension plan for substantially all of our Dutch employees ("Dutch Plan") who were hired prior to 2007 based on years of service and final pay or career average pay, depending on when the employee began participating. The benefits earned by the employees are immediately vested. We fund the future obligations of the Dutch Plan by purchasing insurance contracts from a large multi-national insurance company. The insurance contracts are purchased annually and renew after five years at which time they are replaced with new contracts that are adjusted to include changes in the benefit obligation for the current year and redemption of the expired contracts. We make annual premium payments to the insurance company based on each employee's age and current salary, and the contractual growth rate. We determine the fair value of these plan assets with the assistance of an actuary using observable inputs (Level 2), which approximates the contract value of the investments.
	The following table summarizes the components of net periodic pension cost under the Dutch Plan for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Service cost	$	361		$	394		$	1,103		$	1,178
	Interest cost	439			417			1,341			1,248
	Expected return on plan assets	(326		)	(321		)	(995		)	(961		)
	Amortization of transition asset	(21		)	(21		)	(65		)	(65		)
	Amortization of prior service cost	2			39			5			119
	Amortization of actuarial loss	135			117			405			351
	Net periodic pension cost	$	590		$	625		$	1,794		$	1,870
	During the nine months ended September 30, 2014, we contributed approximately $1.7 million to fund the estimated 2014 premiums on investment contracts held by the Dutch Plan.
	Defined Contribution Plans
	We maintain defined contribution plans (the "Defined Contribution Plans") for the benefit of eligible employees in certain countries, including Canada, The Netherlands, the United Kingdom and the United States. In accordance with the terms of each plan, we and our participating employees contribute up to specified limits, and under certain plans, we may make discretionary contributions in accordance with the terms of the Defined Contribution Plans.
	Deferred Compensation Arrangements
	We have entered into deferred compensation contracts for certain key employees. The benefits under these contracts are fully vested and benefits are paid when the participants attain 65 years of age. Life insurance policies with cash surrender values have been purchased for the purpose of assisting in the funding of the deferred compensation contracts.
	We have adopted a non-qualified deferred compensation plan that allows certain highly compensated employees to defer a portion of their salary, commission and bonus, as well as the amount of any reductions in their deferrals under the deferred compensation plan for employees in the United States (the "Deferred Compensation Plan"), due to certain limitations imposed by the U.S. Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). The Deferred Compensation Plan also provides for employer contributions to be made on behalf of participants equal in amount to certain forfeitures of, and/or reductions in, employer contributions that participants could have otherwise received under the Defined Contribution Plan for U.S. employees qualified under Internal Revenue Code Section 401(k) had there not been certain limitations imposed by the Internal Revenue Code. Employer contributions to the Deferred Compensation Plan vest ratably over a period of five years. Contributions to the plan are invested in equity and other investment fund assets within life insurance policies, and carried on the balance sheet at fair value. A participant's plan benefits include the participant's deferrals, the vested portion of the employer's contributions, and deemed investment gains and losses on such amounts. The benefits under these contracts are fully vested and payment of benefits generally commences as of the last day of the month following the termination of services except that the payment of benefits for select executives generally commences on the first working day following a six month waiting period following the date of termination.
	The Company's only financial assets and liabilities which involve fair value measures relate to certain aspects of the Company's benefit plans. On a recurring basis, we use the market approach to value certain assets and liabilities at fair value at quoted prices in an active market (Level 1) and certain assets and liabilities using significant other observable inputs (Level 2) with the assistance of a third party specialist. We do not have any assets or liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3). Gains and losses related to the fair value changes in the deferred compensation assets and liabilities are recorded in General and Administrative Expense in the Consolidated Statements of Operations. The following table summarizes the fair value balances (in thousands):
	(Unaudited)				Fair Value Measurement at
					September 30, 2014
		Total			Level 1			Level 2			Level 3
	Assets:
	Deferred compensation trust assets (1)	$	23,316		$	—		$	23,316		$	—
	Liabilities:
	Deferred compensation plan	$	28,322		$	—		$	28,322		$	—
					Fair Value Measurement at
					December 31, 2013
		Total			Level 1			Level 2			Level 3
	Assets:
	Deferred compensation trust assets (1)	$	20,104		$	—		$	20,104		$	—
	Liabilities:
	Deferred compensation plan	$	25,470		$	1,182		$	24,288		$	—
	(1) Trust assets consist of the cash surrender value of life insurance policies intended to assist in the funding of the deferred compensation plan and are included in Other assets in the Balance Sheet.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	We have been and may from time to time be named as a defendant in legal actions that arise in the ordinary course of business. These include, but are not limited to, employment-related claims and contractual disputes or claims for personal injury or property damage which occur in connection with the provision of our services and products. Management does not currently believe that any of our pending contractual, employment-related, personal injury or property damage claims and disputes will have a material effect on our future results of operations, financial position or cash flow.
	In connection with an audit of the 2008 and 2009 U.S. federal income tax returns of our U.S. consolidated group, the U.S. Internal Revenue Service has proposed that certain transfer pricing positions taken by the Company be adjusted, which could result in additional federal income tax of approximately $11 million plus interest for this two-year audit period. We believe that these transactions are valid as originally recorded, and we are appealing this proposed adjustment. It is our belief that we will prevail on this issue; consequently, we have made no additional income tax accrual for this proposed adjustment.

Equity

Equity	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Equity	'
	EQUITY
	During the three months ended September 30, 2014, we repurchased 562,913 of our common shares for $85.1 million. Included in this total were rights to 4,887 shares valued at $0.8 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. During the nine months ended September 30, 2014, we repurchased 1,272,472 of our common shares for $210.4 million. Included in this total were rights to 30,281 shares valued at $5.5 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. Such common shares, unless canceled, may be reissued for a variety of purposes such as future acquisitions, non-employee director stock awards or employee stock awards.
	At the annual meeting of shareholders on May 13, 2014, the shareholders approved the cancellation of 1,150,000 shares of our common stock then held as treasury stock. These treasury shares were cancelled on July 25, 2014, after the expiration of the waiting period required under Dutch law. In accordance with ASC 505-30-30-8, we charged the excess of the cost of the treasury stock over its par value to additional paid-in capital and retained earnings.
	In February, May and August 2014, we paid a quarterly dividend of $0.50 per share of common stock. In addition, on October 6, 2014, we declared a quarterly dividend of $0.50 per share of common stock for shareholders of record on October 17, 2014 and payable on November 25, 2014.
	The following table summarizes our changes in equity for the nine months ended September 30, 2014 (in thousands):
	(Unaudited)	Common Shares			Additional Paid-In Capital			Retained Earnings			Accumulated			Treasury Stock			Non-Controlling Interest			Total Equity
											Other
											Comprehensive Income (Loss)
	December 31, 2013	$	1,203		$	—		$	415,930		$	(8,626	)	$	(245,184	)	$	6,066		$	169,389
	Stock based-awards	—			3,648			—			—			11,849			—			15,497
	Tax benefit of stock-based awards issued	—			2,680			—			—			—			—			2,680
	Repurchase of common shares	—			—			—			—			(210,402		)	—			(210,402		)
	Dividends paid	—			—			(67,153		)	—			—			—			(67,153		)
	Cancellation of common shares	(29		)	(4,315		)	(155,737		)	—			160,081			—			—
	Non-controlling interest dividends	—			—			—			—			—			(393		)	(393		)
	Amortization of deferred pension costs, net of tax	—			—			—			258			—			—			258
	Net income (loss)	—			—			191,295			—			—			604			191,899
	September 30, 2014	$	1,174		$	2,013		$	384,335		$	(8,368	)	$	(283,656	)	$	6,277		$	101,775
	Accumulated other comprehensive income (loss) consisted of the following (in thousands):
		September 30,			December 31,
		2014			2013
		(Unaudited)
	Transition asset	$	82		$	131
	Prior service cost	(51		)	(55		)
	Unrecognized net actuarial loss	(8,399		)	(8,702		)
	Total accumulated other comprehensive income (loss)	$	(8,368	)	$	(8,626	)

Earnings_per_Share

Earnings per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings per Share	'
	EARNINGS PER SHARE
	We compute basic earnings per common share by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common and potential common shares include additional shares in the weighted average share calculations associated with the incremental effect of dilutive restricted stock awards and contingently issuable shares, as determined using the treasury stock method. The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
		2014	2013	2014	2013
		(Unaudited)		(Unaudited)
	Weighted average basic common shares outstanding	44,152	45,526	44,571	45,854
	Effect of dilutive securities:
	Stock options	—	—	—	1
	Performance shares	121	135	110	115
	Restricted stock	108	167	142	180
	Weighted average diluted common and potential common shares outstanding	44,381	45,828	44,823	46,150

Other_Income_Expense_Net

Other (Income) Expense, Net	9 Months Ended
	Sep. 30, 2014
Other Income and Expenses [Abstract]	'
Other (Income) Expense, Net	'
	OTHER (INCOME) EXPENSE, NET
	The components of other (income) expense, net, were as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Sale of assets	$	(442	)	$	(155	)	$	(740	)	$	(687	)
	Results of non-consolidated subsidiaries	(165		)	43			(295		)	(142		)
	Foreign exchange	1,858			518			2,158			3,040
	Interest income	(8		)	4			(194		)	(586		)
	Rents and royalties	(209		)	(156		)	(656		)	(599		)
	Insurance recovery	—			(336		)	—			(882		)
	Other, net	(107		)	123			(287		)	(62		)
	Total other (income) expense, net	$	927		$	41		$	(14	)	$	82
	Foreign exchange (gain) loss by currency is summarized in the following table (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Australian Dollar	$	104		$	182		$	166		$	391
	British Pound	770			(430		)	496			111
	Canadian Dollar	903			(278		)	1,071			690
	Euro	(448		)	266			(446		)	620
	Indonesian Rupiah	82			320			48			373
	Malaysian Ringgit	77			144			90			332
	Other currencies, net	370			314			733			523
	Total (gain) loss	$	1,858		$	518		$	2,158		$	3,040

Income_Tax_Expense

Income Tax Expense	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Tax Expense	'
	INCOME TAX EXPENSE
	The effective tax rates for the three months ended September 30, 2014 and 2013 were 23.0% and 24.9%, respectively. The effective tax rates for the nine months ended September 30, 2014 and 2013 were 22.7% and 25.2%, respectively. The change in tax expense is primarily the result of several items discrete to each of the three and nine months ended September 30, 2014 and 2013 along with changes in activity levels among jurisdictions with different tax rates.

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Segment Reporting	'
	SEGMENT REPORTING
	We operate our business in three reportable segments.  These complimentary segments provide different services and products and utilize different technologies for improving reservoir performance and increasing oil and gas recovery from new and existing fields.
	•	Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.
	•	Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.
	•	Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.
	Results for these segments are presented below. We use the same accounting policies to prepare our segment results as are used to prepare our Consolidated Financial Statements. All interest and other non-operating income (expense) is attributable to the Corporate & Other area and is not allocated to specific segments. Summarized financial information concerning our segments is shown in the following table (in thousands):
	(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
	Three Months Ended September 30, 2014
	Revenue from unaffiliated clients	$	131,380	$	122,161	$	22,594	$	—		$	276,135
	Inter-segment revenue	4,734		52,916		1,422		(59,072		)	—
	Segment operating income (loss)	35,377		45,735		7,553		455			89,120
	Total assets (at end of period)	317,741		277,320		33,646		56,425			685,132
	Capital expenditures	4,577		2,678		2,021		(1,439		)	7,837
	Depreciation and amortization	4,158		1,830		350		507			6,845
	Three Months Ended September 30, 2013
	Revenue from unaffiliated clients	$	131,533	$	119,511	$	22,119	$	—		$	273,163
	Inter-segment revenue	656		791		301		(1,748		)	—
	Segment operating income (loss)	35,938		42,284		6,516		(142		)	84,596
	Total assets (at end of period)	320,505		261,970		37,005		37,996			657,476
	Capital expenditures	5,414		1,467		285		1,887			9,053
	Depreciation and amortization	3,856		2,196		312		389			6,753
	Nine Months Ended September 30, 2014
	Revenue from unaffiliated clients	$	387,225	$	343,434	$	75,941	$	—		$	806,600
	Inter-segment revenue	10,266		54,097		2,189		(66,552		)	—
	Segment operating income (loss)	106,571		120,597		27,821		1,092			256,081
	Total assets	317,741		277,320		33,646		56,425			685,132
	Capital expenditures	15,673		5,508		2,388		4,055			27,624
	Depreciation and amortization	11,941		5,605		955		1,295			19,796
	Nine Months Ended September 30, 2013
	Revenue from unaffiliated clients	$	386,000	$	337,141	$	74,088	$	—		$	797,229
	Inter-segment revenue	2,131		2,468		1,124		(5,723		)	—
	Segment operating income (loss)	107,707		113,761		23,837		197			245,502
	Total assets	320,505		261,970		37,005		37,996			657,476
	Capital expenditures	17,267		5,406		1,321		2,994			26,988
	Depreciation and amortization	11,080		5,810		692		1,160			18,742
	(1) "Corporate & Other" represents those items that are not directly related to a particular segment and eliminations.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2014
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
Recent Accounting Pronouncements	'
	RECENT ACCOUNTING PRONOUNCEMENTS
	In July 2013, the Financial Accounting Standards Board ("FASB") issued ASU 2013-11 relating to income taxes (FASB ASC Topic 740), which provides guidance on the presentation of unrecognized tax benefits. The intent is to better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses, or tax credit carryforwards exist. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. We have adopted this pronouncement for our fiscal year beginning January 1, 2014. The adoption of this pronouncement did not have a material effect on our consolidated financial statements.
	In May 2014, the FASB issued ASU 2014-09 relating to revenue from contracts with customers (FASB ASC Topic 606), which provides guidance on revenue recognition. The core principle of this guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance requires entities to apply a five-step method to (1) identify the contract(s) with customers; (2) identify the performance obligation(s) in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligation(s) in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. We are evaluating the impact that the adoption of this standard will have on our consolidated financial statements.

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 30, 2014
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current	'
	Inventories consist of the following (in thousands):
		September 30,		December 31,
		2014		2013
		(Unaudited)
	Finished goods	$	36,119	$	37,143
	Parts and materials	10,720		8,323
	Work in progress	2,612		1,355
	Total inventories	$	49,451	$	46,821

Debt_and_Capital_Lease_Obligat1

Debt and Capital Lease Obligations (Tables)	9 Months Ended
	Sep. 30, 2014
Debt and Capital Lease Obligations [Abstract]	'
Schedule of Long-term Debt Instruments	'
	Debt is summarized in the following table (in thousands):
		September 30,		December 31,
		2014		2013
		(Unaudited)
	Senior notes	$	150,000	$	150,000
	Credit facility	220,000		117,000
	Capital lease obligations	5		28
	Total debt	370,005		267,028
	Less - current maturities of long-term debt and capital lease obligations	5		26
	Long-term debt and capital lease obligations, net	$	370,000	$	267,002

Pensions_and_Other_Postretirem1

Pensions and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Schedule of Net Benefit Costs	'
	The following table summarizes the components of net periodic pension cost under the Dutch Plan for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Service cost	$	361		$	394		$	1,103		$	1,178
	Interest cost	439			417			1,341			1,248
	Expected return on plan assets	(326		)	(321		)	(995		)	(961		)
	Amortization of transition asset	(21		)	(21		)	(65		)	(65		)
	Amortization of prior service cost	2			39			5			119
	Amortization of actuarial loss	135			117			405			351
	Net periodic pension cost	$	590		$	625		$	1,794		$	1,870
Fair Value, by Balance Sheet Grouping	'
	The following table summarizes the fair value balances (in thousands):
	(Unaudited)				Fair Value Measurement at
					September 30, 2014
		Total			Level 1			Level 2			Level 3
	Assets:
	Deferred compensation trust assets (1)	$	23,316		$	—		$	23,316		$	—
	Liabilities:
	Deferred compensation plan	$	28,322		$	—		$	28,322		$	—
					Fair Value Measurement at
					December 31, 2013
		Total			Level 1			Level 2			Level 3
	Assets:
	Deferred compensation trust assets (1)	$	20,104		$	—		$	20,104		$	—
	Liabilities:
	Deferred compensation plan	$	25,470		$	1,182		$	24,288		$	—
	(1) Trust assets consist of the cash surrender value of life insurance policies intended to assist in the funding of the deferred compensation plan and are included in Other assets in the Balance Sheet.

Equity_Tables

Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Schedule of Stockholders Equity	'
	The following table summarizes our changes in equity for the nine months ended September 30, 2014 (in thousands):
	(Unaudited)	Common Shares			Additional Paid-In Capital			Retained Earnings			Accumulated			Treasury Stock			Non-Controlling Interest			Total Equity
											Other
											Comprehensive Income (Loss)
	December 31, 2013	$	1,203		$	—		$	415,930		$	(8,626	)	$	(245,184	)	$	6,066		$	169,389
	Stock based-awards	—			3,648			—			—			11,849			—			15,497
	Tax benefit of stock-based awards issued	—			2,680			—			—			—			—			2,680
	Repurchase of common shares	—			—			—			—			(210,402		)	—			(210,402		)
	Dividends paid	—			—			(67,153		)	—			—			—			(67,153		)
	Cancellation of common shares	(29		)	(4,315		)	(155,737		)	—			160,081			—			—
	Non-controlling interest dividends	—			—			—			—			—			(393		)	(393		)
	Amortization of deferred pension costs, net of tax	—			—			—			258			—			—			258
	Net income (loss)	—			—			191,295			—			—			604			191,899
	September 30, 2014	$	1,174		$	2,013		$	384,335		$	(8,368	)	$	(283,656	)	$	6,277		$	101,775
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	Accumulated other comprehensive income (loss) consisted of the following (in thousands):
		September 30,			December 31,
		2014			2013
		(Unaudited)
	Transition asset	$	82		$	131
	Prior service cost	(51		)	(55		)
	Unrecognized net actuarial loss	(8,399		)	(8,702		)
	Total accumulated other comprehensive income (loss)	$	(8,368	)	$	(8,626	)

Earnings_per_Share_Tables

Earnings per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Weighted Average Number of Shares	'
	The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
		2014	2013	2014	2013
		(Unaudited)		(Unaudited)
	Weighted average basic common shares outstanding	44,152	45,526	44,571	45,854
	Effect of dilutive securities:
	Stock options	—	—	—	1
	Performance shares	121	135	110	115
	Restricted stock	108	167	142	180
	Weighted average diluted common and potential common shares outstanding	44,381	45,828	44,823	46,150

Other_Income_Expense_Net_Table

Other (Income) Expense, Net (Tables)	9 Months Ended
	Sep. 30, 2014
Other Income and Expenses [Abstract]	'
Foreign Currency Gains Losses By Currency	'
	Foreign exchange (gain) loss by currency is summarized in the following table (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Australian Dollar	$	104		$	182		$	166		$	391
	British Pound	770			(430		)	496			111
	Canadian Dollar	903			(278		)	1,071			690
	Euro	(448		)	266			(446		)	620
	Indonesian Rupiah	82			320			48			373
	Malaysian Ringgit	77			144			90			332
	Other currencies, net	370			314			733			523
	Total (gain) loss	$	1,858		$	518		$	2,158		$	3,040
Schedule of Other Operating Cost and Expense, by Component	'
	The components of other (income) expense, net, were as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Unaudited)						(Unaudited)
	Sale of assets	$	(442	)	$	(155	)	$	(740	)	$	(687	)
	Results of non-consolidated subsidiaries	(165		)	43			(295		)	(142		)
	Foreign exchange	1,858			518			2,158			3,040
	Interest income	(8		)	4			(194		)	(586		)
	Rents and royalties	(209		)	(156		)	(656		)	(599		)
	Insurance recovery	—			(336		)	—			(882		)
	Other, net	(107		)	123			(287		)	(62		)
	Total other (income) expense, net	$	927		$	41		$	(14	)	$	82

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
	Summarized financial information concerning our segments is shown in the following table (in thousands):
	(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
	Three Months Ended September 30, 2014
	Revenue from unaffiliated clients	$	131,380	$	122,161	$	22,594	$	—		$	276,135
	Inter-segment revenue	4,734		52,916		1,422		(59,072		)	—
	Segment operating income (loss)	35,377		45,735		7,553		455			89,120
	Total assets (at end of period)	317,741		277,320		33,646		56,425			685,132
	Capital expenditures	4,577		2,678		2,021		(1,439		)	7,837
	Depreciation and amortization	4,158		1,830		350		507			6,845
	Three Months Ended September 30, 2013
	Revenue from unaffiliated clients	$	131,533	$	119,511	$	22,119	$	—		$	273,163
	Inter-segment revenue	656		791		301		(1,748		)	—
	Segment operating income (loss)	35,938		42,284		6,516		(142		)	84,596
	Total assets (at end of period)	320,505		261,970		37,005		37,996			657,476
	Capital expenditures	5,414		1,467		285		1,887			9,053
	Depreciation and amortization	3,856		2,196		312		389			6,753
	Nine Months Ended September 30, 2014
	Revenue from unaffiliated clients	$	387,225	$	343,434	$	75,941	$	—		$	806,600
	Inter-segment revenue	10,266		54,097		2,189		(66,552		)	—
	Segment operating income (loss)	106,571		120,597		27,821		1,092			256,081
	Total assets	317,741		277,320		33,646		56,425			685,132
	Capital expenditures	15,673		5,508		2,388		4,055			27,624
	Depreciation and amortization	11,941		5,605		955		1,295			19,796
	Nine Months Ended September 30, 2013
	Revenue from unaffiliated clients	$	386,000	$	337,141	$	74,088	$	—		$	797,229
	Inter-segment revenue	2,131		2,468		1,124		(5,723		)	—
	Segment operating income (loss)	107,707		113,761		23,837		197			245,502
	Total assets	320,505		261,970		37,005		37,996			657,476
	Capital expenditures	17,267		5,406		1,321		2,994			26,988
	Depreciation and amortization	11,080		5,810		692		1,160			18,742

Inventories_Details

Inventories (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Finished goods	$36,119	$37,143
Parts and materials	10,720	8,323
Work in progress	2,612	1,355
Total inventories	$49,451	$46,821

Debt_and_Capital_Lease_Obligat2

Debt and Capital Lease Obligations (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Senior Notes [Member]

Senior Notes [Member]

Line of Credit [Member]

Line of Credit [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Senior Notes Series A [Member]

Senior Notes Series B [Member]

Minimum [Member]

Maximum [Member]

Interest Rate Swap [Member]

Interest Rate Swap No. 1 [Member]

Interest Rate Swap No. 2 [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total debt

$370,005,000

$267,028,000

$150,000,000

$150,000,000

$220,000,000

$117,000,000

$5,000

$28,000

'

'

'

'

'

'

'

Less - current maturities of long-term debt and capital lease obligations

5,000

26,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt and capital lease obligations, net

370,000,000

267,002,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Face amount

'

'

150,000,000

'

'

'

'

'

75,000,000

75,000,000

'

'

'

'

'

Maturity date

'

'

'

'

29-Aug-19

'

'

'

30-Sep-21

30-Sep-23

'

'

'

'

'

Interest rate, effective percentage

'

'

'

'

'

'

'

'

4.01%

4.11%

'

'

'

'

'

Line of credit facility, current borrowing capacity

350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, maximum borrowing capacity

400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

1.25%

2.00%

'

'

'

Performance bonds under credit facility

25,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, remaining borrowing capacity

104,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance bonds

19,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Amount of Hedged Item

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

Derivative, Notional Amount

'

'

'

'

'

'

'

'

'

'

'

'

$50,000,000

$25,000,000

$25,000,000

Derivative, Maturity Date

'

'

'

'

'

'

'

'

'

'

'

'

'

29-Aug-24

29-Aug-19

Derivative, Fixed Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

2.50%

1.73%

Derivative, Fixed Rate and Debt Instrument, Basis Spread on Variable Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

3.75%

2.98%

Pensions_and_Other_Postretirem2

Pensions and Other Postretirement Benefits (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Compensation and Retirement Disclosure [Abstract]	'	'	'	'
Service cost	$361,000	$394,000	$1,103,000	$1,178,000
Interest cost	439,000	417,000	1,341,000	1,248,000
Expected return on plan assets	-326,000	-321,000	-995,000	-961,000
Amortization of transition asset	-21,000	-21,000	-65,000	-65,000
Amortization of prior service cost	2,000	39,000	5,000	119,000
Amortization of actuarial loss	135,000	117,000	405,000	351,000
Net periodic pension cost	590,000	625,000	1,794,000	1,870,000
Contributions by employer	'	'	$1,700,000	'

Pensions_and_Other_Postretirem3

Pensions and Other Postretirement Benefits (Fair Value Measurement) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, fair value	$23,316	$20,104
Liabilities, fair value	28,322	25,470
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, fair value	0	0
Liabilities, fair value	0	1,182
Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, fair value	23,316	20,104
Liabilities, fair value	28,322	24,288
Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, fair value	0	0
Liabilities, fair value	$0	$0

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (Tax positions challenged during tax audit [Member], USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Tax positions challenged during tax audit [Member]	'
Loss Contingencies [Line Items]	'
Loss contingency, estimate of possible loss	$11

Equity_Narrative_Details

Equity (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Equity [Abstract]	'	'	'	'
Treasury sock, shares, acquired	562,913	'	1,272,472	'
Treasury stock, value, acquired	$85.10	'	$210.40	'
Treasury shares, acquired, tax burden	4,887	'	30,281	'
Treasury shares, acquired, value, tax burden	$0.80	'	$5.50	'
Stock Repurchased During Period, Shares	'	'	1,150,000	'
Cash dividends per share (in dollars per share)	$0.50	$0.32	$1.50	$0.96
Dividends declared (in dollars per share)	$0.50	'	'	'

Equity_Details

Equity (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	$169,389	'
Stock based-awards	'	'	15,497	'
Tax benefit of stock-based awards issued	'	'	2,680	'
Repurchase of common shares	'	'	-210,402	'
Dividends paid	'	'	-67,153	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	-393	'
Cancellation of common shares	'	'	0	'
Amortization of deferred pension costs, net of tax	'	'	258	'
Net income (loss)	66,650	61,804	191,899	178,478
Net income (loss) attributable to non-controlling interest	153	-91	604	391
Ending balance	101,775	'	101,775	'
Common Shares [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	1,203	'
Stock based-awards	'	'	0	'
Tax benefit of stock-based awards issued	'	'	0	'
Repurchase of common shares	'	'	0	'
Dividends paid	'	'	0	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	0	'
Cancellation of common shares	'	'	-29	'
Amortization of deferred pension costs, net of tax	'	'	0	'
Net income (loss)	'	'	0	'
Ending balance	1,174	'	1,174	'
Additional Paid-In Capital [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	0	'
Stock based-awards	'	'	3,648	'
Tax benefit of stock-based awards issued	'	'	2,680	'
Repurchase of common shares	'	'	0	'
Dividends paid	'	'	0	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	0	'
Cancellation of common shares	'	'	-4,315	'
Amortization of deferred pension costs, net of tax	'	'	0	'
Net income (loss)	'	'	0	'
Ending balance	2,013	'	2,013	'
Retained Earnings [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	415,930	'
Stock based-awards	'	'	0	'
Tax benefit of stock-based awards issued	'	'	0	'
Repurchase of common shares	'	'	0	'
Dividends paid	'	'	-67,153	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	0	'
Cancellation of common shares	'	'	-155,737	'
Amortization of deferred pension costs, net of tax	'	'	0	'
Net income (loss)	'	'	191,295	'
Ending balance	384,335	'	384,335	'
Accumulated Other Comprehensive Income (Loss) [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	-8,626	'
Stock based-awards	'	'	0	'
Tax benefit of stock-based awards issued	'	'	0	'
Repurchase of common shares	'	'	0	'
Dividends paid	'	'	0	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	0	'
Cancellation of common shares	'	'	0	'
Amortization of deferred pension costs, net of tax	'	'	258	'
Net income (loss)	'	'	0	'
Ending balance	-8,368	'	-8,368	'
Treasury Stock [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	-245,184	'
Stock based-awards	'	'	11,849	'
Tax benefit of stock-based awards issued	'	'	0	'
Repurchase of common shares	'	'	-210,402	'
Dividends paid	'	'	0	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	0	'
Cancellation of common shares	'	'	160,081	'
Amortization of deferred pension costs, net of tax	'	'	0	'
Net income (loss)	'	'	0	'
Ending balance	-283,656	'	-283,656	'
Non-Controlling Interests [Member]	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	'	'	6,066	'
Stock based-awards	'	'	0	'
Tax benefit of stock-based awards issued	'	'	0	'
Repurchase of common shares	'	'	0	'
Dividends paid	'	'	0	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	'	-393	'
Cancellation of common shares	'	'	0	'
Amortization of deferred pension costs, net of tax	'	'	0	'
Ending balance	$6,277	'	$6,277	'

Equity_Comprehensive_Income_De

Equity (Comprehensive Income) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Equity [Abstract]	'	'
Prior service cost	($51)	($55)
Transition asset	82	131
Unrecognized net actuarial loss	-8,399	-8,702
Total accumulated other comprehensive income (loss)	($8,368)	($8,626)

Earnings_per_Share_Details

Earnings per Share (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Weighted average basic common shares outstanding	44,152	45,526	44,571	45,854
Stock options (in shares)	0	0	0	1
Performance shares (in shares)	121	135	110	115
Restricted stock (in shares)	108	167	142	180
Weighted average diluted common and potential common shares outstanding	44,381	45,828	44,823	46,150

Other_Income_Expense_Net_Detai

Other (Income) Expense, Net (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other Income and Expenses [Abstract]	'	'	'	'
Foreign exchange	$1,858,000	$518,000	$2,158,000	$3,040,000

Other_Income_Expense_Net_Forei

Other (Income) Expense, Net (Foreign Currency (Gain ) Loss by Currency) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Foreign exchange	$1,858,000	$518,000	$2,158,000	$3,040,000
AustralianDollar [Member]	'	'	'	'
Foreign exchange	104,000	182,000	166,000	391,000
British Pound [Member]	'	'	'	'
Foreign exchange	770,000	-430,000	496,000	111,000
Canadian Dollar [Member]	'	'	'	'
Foreign exchange	903,000	-278,000	1,071,000	690,000
Euro [Member]	'	'	'	'
Foreign exchange	-448,000	266,000	-446,000	620,000
Indonesian Rupiah [Member]	'	'	'	'
Foreign exchange	82,000	320,000	48,000	373,000
Malaysian Ringgit [Member]	'	'	'	'
Foreign exchange	77,000	144,000	90,000	332,000
Other Currencies Net [Member]	'	'	'	'
Foreign exchange	$370,000	$314,000	$733,000	$523,000

Income_Tax_Expense_Details

Income Tax Expense (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Effective income tax rate	23.00%	24.90%	22.70%	25.20%

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	$276,135	$273,163	$806,600	$797,229	'
Inter-segment revenue	0	0	0	0	'
Segment operating income (loss)	89,120	84,596	256,081	245,502	'
Total assets (at end of period)	685,132	657,476	685,132	657,476	661,010
Capital expenditures	7,837	9,053	27,624	26,988	'
Depreciation and amortization	6,845	6,753	19,796	18,742	'
Reservoir Description [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	'	'	387,225	386,000	'
Inter-segment revenue	'	'	10,266	2,131	'
Segment operating income (loss)	'	'	106,571	107,707	'
Capital expenditures	'	'	15,673	17,267	'
Depreciation and amortization	'	'	11,941	11,080	'
Production Enhancement [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	'	'	343,434	337,141	'
Inter-segment revenue	'	'	54,097	2,468	'
Segment operating income (loss)	'	'	120,597	113,761	'
Capital expenditures	'	'	5,508	5,406	'
Depreciation and amortization	'	'	5,605	5,810	'
Reservoir Management [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	'	'	75,941	74,088	'
Inter-segment revenue	'	'	2,189	1,124	'
Segment operating income (loss)	'	'	27,821	23,837	'
Capital expenditures	'	'	2,388	1,321	'
Depreciation and amortization	'	'	955	692	'
Operating Segment Corporate And Other [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	'	'	0	0	'
Inter-segment revenue	'	'	-66,552	-5,723	'
Segment operating income (loss)	'	'	1,092	197	'
Capital expenditures	'	'	4,055	2,994	'
Depreciation and amortization	'	'	1,295	1,160	'
Operating Segments [Member] | Reservoir Description [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	131,380	131,533	'	'	'
Inter-segment revenue	4,734	656	'	'	'
Segment operating income (loss)	35,377	35,938	'	'	'
Total assets (at end of period)	317,741	320,505	317,741	320,505	'
Capital expenditures	4,577	5,414	'	'	'
Depreciation and amortization	4,158	3,856	'	'	'
Operating Segments [Member] | Production Enhancement [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	122,161	119,511	'	'	'
Inter-segment revenue	52,916	791	'	'	'
Segment operating income (loss)	45,735	42,284	'	'	'
Total assets (at end of period)	277,320	261,970	277,320	261,970	'
Capital expenditures	2,678	1,467	'	'	'
Depreciation and amortization	1,830	2,196	'	'	'
Operating Segments [Member] | Reservoir Management [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	22,594	22,119	'	'	'
Inter-segment revenue	1,422	301	'	'	'
Segment operating income (loss)	7,553	6,516	'	'	'
Total assets (at end of period)	33,646	37,005	33,646	37,005	'
Capital expenditures	2,021	285	'	'	'
Depreciation and amortization	350	312	'	'	'
Corporate & Other [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenue from unaffiliated clients	0	0	'	'	'
Inter-segment revenue	-59,072	-1,748	'	'	'
Segment operating income (loss)	455	-142	'	'	'
Total assets (at end of period)	56,425	37,996	56,425	37,996	'
Capital expenditures	-1,439	1,887	'	'	'
Depreciation and amortization	$507	$389	'	'	'