10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

T  Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended:  June 30, 2013 or

£  Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from ________________ to ________________

Commission file number:  0-25426

NATIONAL INSTRUMENTS CORPORATION

(Exact name of registrant as specified in its charter)

Delaware (State or other jurisdiction of incorporation or organization)	74-1871327 (I.R.S. Employer Identification Number)
11500 North MoPac Expressway Austin, Texas	78759
(address of principal executive offices)	(zip code)

Registrant's telephone number, including area code:  (512) 338-9119

__________________________

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes T  No £

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes T  No £

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer TAccelerated filer £Non-accelerated filer £Smaller reporting company £

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes £  No T

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date.

Class	Outstanding at July 29, 2013
Common Stock - $0.01 par value	124,798,807

1

NATIONAL INSTRUMENTS CORPORATION

INDEX

PART I.  FINANCIAL INFORMATION		Page No.
Item 1	Financial Statements:
	Consolidated Balance Sheets
	June 30, 2013(unaudited) and December 31, 2012	3
	Consolidated Statements of Income
	(unaudited) for the three and six month periodsended June 30, 2013 and 2012	4
	Statements of Consolidated Comprehensive Income
	(unaudited) for the threeand six month periodsended June 30, 2013 and 2012	5
	Consolidated Statements of Cash Flows
	(unaudited) for the three and six month periods ended June 30, 2013 and 2012	6
	Notes to Consolidated Financial Statements	7
Item 2	Management's Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3	Quantitative and Qualitative Disclosures about Market Risk	32
Item 4	Controls and Procedures	35
PART II.  OTHER INFORMATION
Item 1	Legal Proceedings	36
Item 1A	Risk Factors	36
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	44
Item 5	Other Information	44
Item 6	Exhibits	45
	Signatures and Certifications	46

2

PART I - FINANCIAL INFORMATION

ITEM 1.Financial Statements

NATIONAL INSTRUMENTS CORPORATION

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

		June 30,		December 31,
		2013		2012
Assets		(unaudited)
Current assets:
Cash and cash equivalents	$	169,580	$	161,996
Short-term investments		153,970		173,166
Accounts receivable, net		172,880		187,060
Inventories, net		185,278		169,990
Prepaid expenses and other current assets		68,202		48,009
Deferred income taxes, net		30,197		27,479
Total current assets		780,107		767,700
Property and equipment, net		263,915		249,721
Goodwill		146,922		147,258
Intangible assets, net		87,972		93,913
Other long-term assets		25,303		26,177
Total assets	$	1,304,219	$	1,284,769
Liabilities and stockholders' equity
Current liabilities:
Accounts payable	$	54,606	$	65,080
Accrued compensation		28,467		29,978
Deferred revenue - current		95,137		90,714
Accrued expenses and other liabilities		33,412		34,373
Other taxes payable		22,315		24,811
Total current liabilities		233,937		244,956
Deferred income taxes		46,480		47,630
Liability for uncertain tax positions		22,277		20,920
Deferred revenue - long-term		21,120		20,446
Other long-term liabilities		8,646		11,689
Total liabilities		332,460		345,641
Commitments and contingencies
Stockholders' equity:
Preferred stock:  par value $0.01; 5,000,000 shares authorized; none issued and outstanding		-		-
Common stock:  par value $0.01; 360,000,000 shares authorized; 124,784,176 and 122,878,690 shares issued and outstanding, respectively		1,248		1,229
Additional paid-in capital		568,426		532,845
Retained earnings		402,597		404,210
Accumulated other comprehensive (loss) income		(512)		844
Total stockholders’ equity		971,759		939,128
Total liabilities and stockholders’ equity	$	1,304,219	$	1,284,769

The accompanying notes are an integral part of the financial statements. 

3

NATIONAL INSTRUMENTS CORPORATION  

CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share data)  

(unaudited)  

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2013		2012		2013		2012
Net sales:
Product	$	275,663	$	268,979	$	541,081	$	508,314
Software maintenance		20,463		21,931		41,533		43,729
GSA accrual		-		1,349		-		1,349
Total net sales		296,126		292,259		582,614		553,392
Cost of sales:
Product		82,787		69,787		151,413		129,578
Software maintenance		1,028		1,064		2,642		2,621
Total cost of sales		83,815		70,851		154,055		132,199
Gross profit		212,311		221,408		428,559		421,193
Operating expenses:
Sales and marketing		112,561		110,756		226,631		210,808
Research and development		58,473		54,286		119,729		108,301
General and administrative		22,156		21,502		45,000		42,876
Acquisition related adjustment		-		-		(1,316)		-
Total operating expenses		193,190		186,544		390,044		361,985
Operating income		19,121		34,864		38,515		59,208
Other income:
Interest income		177		132		362		362
Net foreign exchange loss		(1,051)		(1,016)		(2,513)		(1,904)
Other income, net		400		151		424		255
Income before income taxes		18,647		34,131		36,788		57,921
Provision for income taxes		4,226		7,690		3,767		12,838
Net income	$	14,421	$	26,441	$	33,021	$	45,083
Basic earnings per share	$	0.12	$	0.22	$	0.27	$	0.37
Weighted average shares outstanding - basic		124,377		121,801		123,845		121,360
Diluted earnings per share	$	0.12	$	0.22	$	0.26	$	0.37
Weighted average shares outstanding - diluted		125,270		122,759		124,824		122,376
Dividends declared per share	$	0.14	$	0.14	$	0.28	$	0.28

The accompanying notes are an integral part of these financial statements.

4

NATIONAL INSTRUMENTS CORPORATION

STATEMENT OF CONSOLIDATED COMPREHENSIVE INCOME

(in thousands)

(unaudited)

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2013		2012		2013		2012
Net income	$	14,421	$	26,441	$	33,021	$	45,083
Other comprehensive income, before tax and net of reclassification adjustments:
Foreign currency translation adjustment		(325)		(5,597)		(3,249)		(1,281)
Unrealized gain (loss) on securities available-for-sale		36		(404)		(406)		889
Unrealized gain on derivative instruments		1,574		747		3,652		4,631
Other comprehensive income (loss), before tax		1,285		(5,254)		(3)		4,239
Tax expense (benefit) related to items of other comprehensive income		191		(1,005)		1,353		1,020
Other comprehensive income (loss), net of tax		1,094		(4,249)		(1,356)		3,219
Comprehensive income	$	15,515	$	22,192	$	31,665	$	48,302
The accompanying notes are an integral part of these financial statements.

5

NATIONAL INSTRUMENTS CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

		Six Months Ended
		June 30,
		2013		2012
Cash flow from operating activities:
Net income	$	33,021	$	45,083
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		33,555		27,316
Stock-based compensation		14,006		13,285
Tax (benefit) expense from deferred income taxes		(3,633)		6,695
Tax benefit from stock option plans		(2,042)		(2,094)
Changes in operating assets and liabilities:
Accounts receivable		14,358		(31,203)
Inventories		(14,732)		(16,994)
Prepaid expenses and other assets		(18,418)		(17,625)
Accounts payable		(10,612)		10,596
Deferred revenue		5,097		17,911
Taxes, accrued expenses and other liabilities		(6,208)		(11,169)
Net cash provided by operating activities		44,392		41,801
Cash flow from investing activities:
Capital expenditures		(33,147)		(28,934)
Capitalization of internally developed software		(8,073)		(9,664)
Additions to other intangibles		(2,710)		(1,085)
Purchases of short-term investments		(16,039)		(38,879)
Sales and maturities of short-term investments		35,234		183,058
Net cash (used in) provided by investing activities		(24,735)		104,496
Cash flow from financing activities:
Proceeds from issuance of common stock		20,612		14,422
Dividends paid		(34,727)		(34,019)
Tax benefit from stock option plans		2,042		2,094
Net cash used in financing activities		(12,073)		(17,503)
Net change in cash and cash equivalents		7,584		128,794
Cash and cash equivalents at beginning of period		161,996		142,608
Cash and cash equivalents at end of period	$	169,580	$	271,402

The accompanying notes are an integral part of these financial statements.  

6

NATIONAL INSTRUMENTS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 – Basis of presentation  

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2012, included in our annual report on Form 10-K, filed with the Securities and Exchange Commission. In our opinion, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items) considered necessary to present fairly our financial position at June 30, 2013 and December 31, 2012, the results of our operations and comprehensive income for the three and six month periods ended June 30, 2013 and June 30, 2012, and the cash flows for the six month periods ended June 30, 2013 and June 30, 2012. Operating results for the three and six month periods endedJune 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

Following approval by the Company’s Board of Directors and stockholders, on May 14, 2013, the Company’s certificate of incorporation was amended to increase the authorized shares of common stock by 180,000,000 shares to a total of 360,000,000 shares.  As a result of this amendment, the total number of shares which the Company is authorized to issue is 365,000,000 shares, consisting of (i) 5,000,000 shares of preferred stock, par value $.01 per share, and (ii) 360,000,000 shares of common stock, par value $.01 per share.

Note 2 – Earnings per share  

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income by the weighted average number of common shares and common share equivalents outstanding (if dilutive) during each period. The number of common share equivalents, which include stock options and restricted stock units (“RSUs”), is computed using the treasury stock method.  

The reconciliation of the denominators used to calculate basic EPS and diluted EPS for the three and six month periods ended June 30, 2013 and 2012, are as follows:

	Three Months Ended June 30,		Six Months Ended June 30,
	(In thousands)		(In thousands)
	(Unaudited)		(Unaudited)
	2013	2012	2013	2012
Weighted average shares outstanding-basic	124,377	121,801	123,845	121,360
Plus: Common share equivalents
Stock options, RSUs	893	958	979	1,016
Weighted average shares outstanding-diluted	125,270	122,759	124,824	122,376

Stock awards to acquire 538,100 and 4,300 shares for the three months ended June 30, 2013 and 2012, respectively, and 183,500 and 74,900 shares for the six month period ended June 30, 2013 and 2012, respectively, were excluded in the computations of diluted EPS because the effect of including the stock awards would have been anti-dilutive.

Note 3 – Cash, cash equivalents and short-term investments  

The following tables summarize unrealized gains and losses related to our short-term investments designated as available-for-sale:

		As of June 30, 2013
(In thousands)		(Unaudited)
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	132,898	$	-	$	-	$	-	$	132,898
Money Market Accounts		36,682		-		-		-		36,682
Municipal bonds		1,434		1		-		-		1,435
Corporate bonds		17,891		-		(27)		(2,108)		15,756
U.S. treasuries and agencies		117,625		26		-		-		117,651
Foreign government bonds		18,391		-		(13)		(2,162)		16,216
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	327,833	$	27	$	(40)	$	(4,270)	$	323,550

7

(In thousands)		December 31, 2012
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	141,340	$	-	$	-	$	-	$	141,340
Money Market Accounts		20,656		-		-		-		20,656
Municipal bonds		1,465		1		-		-		1,466
Corporate bonds		8,708		-		(20)		(910)		7,778
U.S. treasuries and agencies		135,953		-		(28)		-		135,925
Foreign government bonds		27,947		57		-		(2,919)		25,085
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	338,981	$	58	$	(48)	$	(3,829)	$	335,162

The following tables summarize the contractual maturities of our short-term investments designated as available-for-sale:

		As of June 30, 2013
(In thousands)		(Unaudited)
		Adjusted Cost		Fair Value
Due in less than 1 year	$	130,096	$	128,990
Due in 1 to 5 years		28,157		24,980
Total available-for-sale debt securities	$	158,253	$	153,970
Due in less than 1 year		Adjusted Cost		Fair Value
Corporate bonds	$	-	$	-
U.S. treasuries and agencies		117,625		117,651
Foreign government bonds		9,559		8,427
Time deposits		2,912		2,912
Total available-for-sale debt securities	$	130,096	$	128,990
Due in 1 to 5 years		Adjusted Cost		Fair Value
Municipal bonds	$	1,434	$	1,435
Corporate bonds		17,891		15,756
U.S. treasuries and agencies		-		-
Foreign government bonds		8,832		7,789
Total available-for-sale debt securities	$	28,157	$	24,980

Note 4 – Fair value measurements 

We define fair value to be the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, we consider the principal or most advantageous market that market participants may use when pricing the asset or liability.   

We follow a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value measurement is determined based on the lowest level input that is significant to the fair value measurement. The three values of the fair value hierarchy are the following:   

Level 1 – Quoted prices in active markets for identical assets or liabilities   

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly   

Level 3 – Inputs that are not based on observable market data   

8

Assets and liabilities measured at fair value on a recurring basis are summarized below:

		Fair Value Measurements at Reporting Date Using
(In thousands)		(Unaudited)
Description		June 30, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	36,682	$	36,682	$		$	-
U.S. treasuries and agencies		-				-		-
Short-term investments available for sale:
Municipal bonds		1,435				1,435		-
Corporate bonds		15,756				15,756		-
U.S. treasuries and agencies		117,651				117,651		-
Foreign government bonds		16,216				16,216		-
Time deposits		2,912		2,912				-
Derivatives		8,007				8,007		-
Total Assets	$	198,659	$	39,594	$	159,065	$	-
Liabilities
Derivatives	$	(1,538)	$	-	$	(1,538)	$	-
Total Liabilities	$	(1,538)	$	-	$	(1,538)	$	-
(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	20,656	$	20,656	$	-	$	-
U.S. Treasuries and Agencies		-		-		-		-
Short-term investments available for sale:
Municipal bonds		1,466		-		1,466		-
Corporate bonds		7,778		-		7,778		-
U.S. treasuries and agencies		135,925		-		135,925		-
Foreign government bonds		25,085		-		25,085		-
Time deposits		2,912		2,912		-		-
Derivatives		4,246		-		4,246		-
Total Assets	$	198,068	$	23,568	$	174,500	$	-
Liabilities
Derivatives	$	(2,804)	$	-	$	(2,804)	$	-
Total Liabilities	$	(2,804)	$	-	$	(2,804)	$	-

We value our available-for-sale short-term investments based on pricing from third party pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. We classify all of our fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of our financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. We believe all of these sources reflect the credit risk associated with each of our available-for-sale short-term investments. Short-term investments available-for-sale consists of debt securities issued by states of the U.S. and political subdivisions of the U.S., corporate debt securities and debt securities issued by U.S. government corporations and agencies as well as debt securities issued by foreign governments. All short-term investments available-for-sale have contractual maturities of less than 24 months.  

9

Derivatives include foreign currency forward and option contracts. Our foreign currency forward contracts are valued using an income approach (Level 2) based on the spot rate less the contract rate multiplied by the notional amount. Our foreign currency option contracts are valued using a market approach based on the quoted market prices which are derived from observable inputs including current and future spot rates, interest rate spreads as well as quoted market prices of similar instruments. We consider counterparty credit risk in the valuation of our derivatives. However, counterparty credit risk did not impact the valuation of our derivatives during the six month period ended June 30, 2013. There were not any transfers in or out of Level 1 or Level 2 during the six month period ended June 30, 2013.  

Our foreign government bonds consist of German government sovereign debt denominated in Euro with maximum maturities of 24 months. Our short-term investments do not involve sovereign debt from any other country in Europe.  

We did not have any items that were measured at fair value on a nonrecurring basis at June 30, 2013 and December 31, 2012.  

The carrying value of net accounts receivable and accounts payable contained in the Consolidated Balance Sheets approximates fair value.

 Note 5 – Derivative instruments and hedging activities  

We recognize all of our derivative instruments as either assets or liabilities in our statement of financial position at fair value. The accounting for changes in the fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, we designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in a foreign operation.  

We have operations in over 40 countries. Sales outside of the Americas accounted for approximately 62% and 61% of our revenues during the three month periods ended June 30, 2013 and 2012, respectively, and 60% of our revenues during each of the six month periods ended June 30, 2013 and 2012, respectively. Our activities expose us to a variety of market risks, including the effects of changes in foreign currency exchange rates. These financial risks are monitored and managed by us as an integral part of our overall risk management program.

We maintain a foreign currency risk management strategy that uses derivative instruments (foreign currency forward and purchased option contracts) to help protect our earnings and cash flows from fluctuations caused by the volatility in currency exchange rates. Movements in foreign currency exchange rates pose a risk to our operations and competitive position, since exchange rate changes may affect our profitability and cash flow, and the business or pricing strategies of our non-U.S. based competitors.  

The vast majority of our foreign sales are denominated in the customers’ local currency. We purchase foreign currency forward and option contracts as hedges of forecasted sales that are denominated in foreign currencies and as hedges of foreign currency denominated receivables. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash inflows resulting from such sales or firm commitments will be adversely affected by changes in exchange rates. We also purchase foreign currency forward contracts as hedges of forecasted expenses that are denominated in foreign currencies. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash outflows resulting from foreign currency operating and cost of revenue expenses will be adversely affected by changes in exchange rates.  

We designate foreign currency forward and purchased option contracts as cash flow hedges of forecasted revenues or forecasted expenses. In addition, we hedge our foreign currency denominated balance sheet exposures using foreign currency forward contracts that are not designated as hedging instruments. None of our derivative instruments contain a credit-risk-related contingent feature.  

10

Cash flow hedges  

To help protect against the reduction in value caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales over the next one to three years, we have instituted a foreign currency cash flow hedging program. We hedge portions of our forecasted revenue and forecasted expenses denominated in foreign currencies with forward and purchased option contracts. For forward contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the forward contracts designated as hedges. For option contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the option contracts net of the premium paid designated as hedges. Our foreign currency purchased option contracts are purchased “at-the-money” or “out-of-the-money”. We purchase foreign currency forward and option contracts for up to 100% of our forecasted exposures in selected currencies (primarily in Euro, Japanese yen, and Hungarian forint) and limit the duration of these contracts to 40 months or less.  

For derivative instruments that are designated and qualify as a cash flow hedge, the effective portion of the gain or loss on the derivative is reported as a component of accumulated other comprehensive income (“OCI”) and reclassified into earnings in the same line item (net sales, operating expenses, or cost of sales) associated with the forecasted transaction and in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current earnings or expenses during the current period and are classified as a component of “net foreign exchange gain (loss)”. Hedge effectiveness of foreign currency forwards and purchased option contracts designated as cash flow hedges are measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the forecasted transaction’s terminal value.  

We held forward contracts with the following notional amounts:

(In thousands)		US Dollar Equivalent
		As of June 30, 2013		As of December 31,
		(Unaudited)		2012
Euro	$	60,559	$	84,770
Japanese yen		31,639		42,209
Hungarian forint		31,979		36,005
Total forward contracts notional amount	$	124,177	$	162,984

The contracts in the foregoing table had contractual maturities of 36 months or less at June 30, 2013 and December 31, 2012.  

At June 30, 2013, we expect to reclassify $3.6 million of gains on derivative instruments from accumulated OCI to net sales during the next twelve months when the hedged international sales occur, $204,000 of losses on derivative instruments from accumulated OCI to cost of sales when the cost of sales are incurred and $47,000 of losses on derivative instruments from accumulated OCI to operating expenses during the next twelve months when the hedged operating expenses occur. Expected amounts are based on derivative valuations at June 30, 2013. Actual results may vary as a result of changes in the corresponding exchange rate subsequent to this date.  

We did not record any ineffectiveness from our hedges during the three and six month periods ended June 30, 2013 and 2012.  

Other Derivatives  

Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge our foreign denominated net receivable or net payable positions to protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically attempt to hedge up to 90% of our outstanding foreign denominated net receivables or net payables and typically limit the duration of these foreign currency forward contracts to approximately 120 days. The gain or loss on the derivatives as well as the offsetting gain or loss on the hedge item attributable to the hedged risk is recognized in current earnings under the line item “net foreign exchange loss”. As of June 30, 2013 and December 31, 2012, we held foreign currency forward contracts with a notional amount of $53 million and  $69 million, respectively.   

11

The following tables present the fair value of derivative instruments on our Consolidated Balance Sheets and the effect of derivative instruments on our Consolidated Statements of Income.   

Fair Values of Derivative Instruments:

	Asset Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	4,191	Prepaid expenses and other current assets	$	2,956
Foreign exchange contracts - LT forwards	Other long-term assets		2,567	Other long-term assets		1,046
Total derivatives designated as hedging instruments		$	6,758		$	4,002
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	1,249	Prepaid expenses and other current assets	$	244
Total derivatives not designated as hedging instruments		$	1,249		$	244
Total derivatives		$	8,007		$	4,246

	Liability Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(846)	Accrued expenses and other liabilities	$	(1,292)
Foreign exchange contracts - LT forwards	Other long-term liabilities		(259)	Other long-term liabilities		(798)
Total derivatives designated as hedging instruments		$	(1,105)		$	(2,090)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(433)	Accrued expenses and other liabilities	$	(714)
Total derivatives not designated as hedging instruments		$	(433)		$	(714)
Total derivatives		$	(1,538)		$	(2,804)

12

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three month periods ended June 30, 2013 and 2012, respectively:

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	(268)	Net sales	$	804	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,161	Cost of sales		(34)	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		681	Operating expenses		(9)	Net foreign exchange gain (loss)		-
Total	$	1,574		$	761		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,281	Net sales	$	728	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(377)	Cost of sales		103	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(157)	Operating expenses		8	Net foreign exchange gain (loss)		-
Total	$	747		$	839		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	502	$	794
Total		$	502	$	794

13

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the six month periods ended June 30, 2013 and 2012, respectively.

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	3,995	Net sales	$	1,962	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(266)	Cost of sales		74	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(77)	Operating expenses		(10)	Net foreign exchange gain (loss)		-
Total	$	3,652		$	2,026		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,743	Net sales	$	1,204	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,870	Cost of sales		95	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		1,018	Operating expenses		63	Net foreign exchange gain (loss)		-
Total	$	4,631		$	1,362		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	1,826	$	(236)
Total		$	1,826	$	(236)

14

Note 6 – Inventories 

Inventories, net consist of the following:

		June 30, 2013		December 31,
(In thousands)		(Unaudited)		2012
Raw materials	$	89,767	$	78,244
Work-in-process		8,263		8,566
Finished goods		87,248		83,180
	$	185,278	$	169,990

Note 7 – Intangibles 

Intangibles at June 30, 2013 and December 31, 2012 are as follows:

		June 30, 2013
(In thousands)		(Unaudited)						December 31, 2012
		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	47,339	$	(24,469)	$	22,870	$	45,064	$	(23,450)	$	21,614
Acquired technology		88,925		(47,852)		41,073		89,876		(42,562)		47,314
Patents		25,052		(10,221)		14,831		24,046		(9,398)		14,648
Other		26,767		(17,569)		9,198		27,421		(17,084)		10,337
	$	188,083	$	(100,111)	$	87,972	$	186,407	$	(92,494)	$	93,913

Software development costs capitalized for the three month periods ended June 30, 2013 and 2012 were $5.5 million and $6.1 million, respectively, and related amortization expense was $3.5 million for the each of the same periods. For the six month periods ended June 30, 2013 and 2012, capitalized software development costs were $8.5 million and $10.1 million, respectively, and related amortization expense was $7.2 million and $7.1 million, respectively. Capitalized software development costs for the three month periods ended June 30, 2013 and 2012 included costs related to stock based compensation of $262,000 and $221,000, respectively. For the six month periods ended June 30, 2013 and 2012, capitalized software development costs included costs related to stock based compensation of $402,000 and $400,000, respectively. The related amounts in the table above are net of fully amortized assets.

Amortization of capitalized software development costs is computed on an individual product basis for those products available for market and is recognized based on the product’s estimated economic life, generally three years. Acquired core technology and intangible assets are amortized over their useful lives, which range from three to eight years. Patents are amortized using the straight-line method over their estimated period of benefit, generally 10 to 17 years. Total intangible assets amortization expenses were $7.9 million and $7.0 million for the three months ended June 30, 2013 and 2012, respectively, and $16.3 million and $13.7 million for the six month periods ended June 30, 2013 and 2012, respectively.

 Note 8 – Goodwill

The carrying amount of goodwill as of June 30, 2013, was as follows:

		Amount
		(In thousands)
Balance as of December 31, 2012	$	147,258
Purchase price adjustments		(100)
Foreign currency translation impact		(236)
Balance as of June 30, 2013 (unaudited)	$	146,922

The excess purchase price over the fair value of assets acquired is recorded as goodwill. During the first quarter of 2013, we adjusted the purchase price for one of our 2012 acquisitions, which resulted in the reduction of goodwill by $100,000. As we have one operating segment, we allocate goodwill to one reporting unit for goodwill impairment testing. Goodwill is tested for impairment on an annual basis, and between annual tests if indicators of potential impairment exist, using a fair-value-based approach based on the market capitalization of the reporting unit. Our annual impairment test was performed as of February 28, 2013. Noimpairment of goodwill was identified during 2013 and 2012. Goodwill is deductible for tax purposes in certain jurisdictions.

15

Note 9 – Income taxes

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized.  

We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $22.3 million and $20.9 million of unrecognized tax benefits at June 30, 2013 and December 31, 2012, respectively, all of which would affect our effective income tax rate if recognized. We recorded a gross increase in unrecognized tax benefits of $386,000 and $927,000 for the three and six month periods ended June 30, 2013, respectively, as a result of tax positions taken during the period. Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of June 30, 2013, we had approximately $1.6 million accrued for interest related to uncertain tax positions. The tax years 2006 through 2012 remain open to examination by the major taxing jurisdictions to which we are subject.  

Our provision for income taxes reflected an effective tax rate of 23% for each of the three month periods ended June 30, 2013 and 2012, and of 10% and 22% for the six month periods ended June 30, 2013 and 2012, respectively. For the three and six month periods ended June 30, 2013, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses, profits in foreign jurisdictions with reduced income tax rates, the research and development tax credit, and a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit. For the three and six month periods ended June 30, 2012, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses and profits in foreign jurisdictions with reduced income tax rates.   

Our earnings in Hungary are subject to a statutory tax rate of 19%. The difference between this rate and the statutory U.S. rate of 35% resulted in income tax benefits of $1.5 million and $3.1 million for the three month periods ended June 30, 2013 and 2012, respectively, and $3.2 million and $5.2 million for the six month periods ended June 30, 2013 and 2012, respectively. No countries other than Hungary had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the Internal Revenue Service with regard to any foreign jurisdictions.

The tax position of our Hungarian operation continues to benefit from assets created by the restructuring of our operations in Hungary. In addition, our research and development activities in Hungary continue to benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. Partial release of the valuation allowance on assets from the restructuring and the enhanced tax deduction for research expenses resulted in income tax benefits of $2.3 million and $4.6 million for the three month periods ended June 30, 2013 and 2012, respectively, and $4.7 million and $7.7 million for the six month periods ended June 30, 2013 and 2012, respectively.

Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2027. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. As our Malaysia manufacturing operation is still in a start up phase, the tax holiday did not result in any income tax benefit for the three and six month periods ended June 30, 2013.

Note 10 – Comprehensive income

Our comprehensive income is comprised of net income, foreign currency translation, unrealized gains and losses on forward and option contracts and securities classified as available-for-sale. The accumulated other comprehensive income/(loss), net of tax, for the six month periods ended June 30, 2013 and 2012, consisted of the following:  

		June 30, 2013
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2012	$	208	$	(620)	$	1,256	$	844
Current-period other comprehensive (loss) income		(3,249)		(406)		5,678		2,023
Reclassified from accumulated OCI into income		-		-		(2,026)		(2,026)
Income tax expense		1		19		1,333		1,353
Balance as of June 30, 2013	$	(3,042)	$	(1,045)	$	3,575	$	(512)

		June 30, 2012
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2011	$	(1,543)	$	(664)	$	(1,293)	$	(3,500)
Current-period other comprehensive income		(1,281)		889		5,993		5,601
Reclassified from accumulated OCI into income		-		-		(1,362)		(1,362)
Income tax expense		(327)		189		1,158		1,020
Balance as of June 30, 2012	$	(2,497)	$	36	$	2,180	$	(281)

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Note 11 – Stock-based compensation plans  

Stock option plans  

Our stockholders approved the 1994 Incentive Stock Option Plan (the “1994 Plan”) in May 1994. At the time of approval, 13,668,750 shares of our common stock were reserved for issuance under this plan. In 1997, an additional 10,631,250 shares of our common stock were reserved for issuance under this plan, and an additional 1,125,000 shares were reserved for issuance under this plan in 2004. The 1994 Plan terminated in May 2005, except with respect to outstanding awards previously granted thereunder.  

Awards under the plan were either incentive stock options within the meaning of Section 422 of the Internal Revenue Code or nonqualified options. The right to purchase shares under the options vests over a five to ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and revenue growth but shares cannot accelerate to vest over a period of less than five years. Stock options must be exercised within ten years from date of grant. Stock options were issued with an exercise price which was equal to the market price of our common stock at the grant date. We estimate potential forfeitures of stock grants and adjust compensation cost recorded accordingly. The estimate of forfeitures will be adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures will be recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock compensation expense to be recognized in future periods. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates related to the 1994 Plan.  

Restricted stock plan  

Our stockholders approved our 2005 Incentive Plan (the “2005 Plan”) in May 2005. At the time of approval, 4,050,000 shares of our common stock were reserved for issuance under this plan, as well as the number of shares which had been reserved but not issued under the 1994 Plan (our incentive stock option plan which terminated in May 2005), and any shares that returned to the 1994 Plan as a result of termination of options or repurchase of shares issued under such plan. The 2005 Plan, administered by the Compensation Committee of the Board of Directors, provided for granting of incentive awards in the form of restricted stock and RSUs to directors, executive officers and employees of the Company and its subsidiaries. Awards vest over a three,  five or ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and growth but ten year awards cannot accelerate to vest over a period of less than five years. The 2005 Plan terminated on May 11, 2010, except with respect to outstanding awards previously granted thereunder. There were 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010.  

Our stockholders approved our 2010 Incentive Plan (the “2010 Plan”) on May 11, 2010. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under this plan, as well as the 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010, and any shares that are returned to the 1994 Plan and the 2005 Plan as a result of forfeiture or termination of options or RSUs or repurchase of shares issued under these plans. The 2010 Plan, administered by the Compensation Committee of the Board of Directors, provides for granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards vest over a three,  five or ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and growth but ten year awards cannot accelerate to vest over a period of less than five years. There were 3,228,639 shares available for grant under the 2010 Plan at June 30, 2013.  

We estimate potential forfeitures of RSUs and adjust compensation cost recorded accordingly. The estimate of forfeitures will be adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures will be recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock compensation expense to be recognized in future periods. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates related to the 2010 Plan.  

17

Employee stock purchase plan  

Our employee stock purchase plan permits substantially all domestic employees and employees of designated subsidiaries to acquire our common stock at a purchase price of 85% of the lower of the market price at the beginning or the end of the purchase period. The plan has quarterly purchase periods generally beginning on February 1, May 1, August 1 and November 1 of each year. Employees may designate up to 15% of their compensation for the purchase of common stock under this plan. On May 10, 2011, our stockholders approved an additional 3,000,000 shares for issuance under our employee stock purchase plan, and at June 30, 2013, we had 1,957,532 shares of common stock reserved for future issuance under this plan. We issued 629,495 shares under this plan in the six month period ended June 30, 2013. The weighted average purchase price of the employees’ purchase rights was $21.50 per share. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates with respect to such plan.  

Authorized Preferred Stock and Preferred Stock Purchase Rights Plan  

We have 5,000,000 authorized shares of preferred stock. On January 21, 2004, our Board of Directors designated 750,000 of these shares as Series A Participating Preferred Stock in conjunction with its adoption of a Preferred Stock Rights Agreement (the “Rights Agreement”) and declaration of a dividend of one preferred share purchase right (a “Right”) for each share of common stock outstanding held as of May 10, 2004 or issued thereafter. Each Right will entitle its holder to purchase one one-thousandth of a share of National Instruments’ Series A Participating Preferred Stock at an exercise price of $200, subject to adjustment, under certain circumstances. The Rights Agreement was not adopted in response to any effort to acquire control of National Instruments.  

The Rights only become exercisable in certain limited circumstances following the tenth day after a person or group announces acquisitions of or tender offers for 20% or more of our common stock. In addition, if an acquirer (subject to certain exclusions for certain current stockholders of National Instruments, an “Acquiring Person”) obtains 20% or more of our common stock, then each Right (other than the Rights owned by an Acquiring Person or its affiliates) will entitle the holder to purchase, for the exercise price, shares of our common stock having a value equal to two times the exercise price. Under certain circumstances, our Board of Directors may redeem the Rights, in whole, but not in part, at a purchase price of $0.01 per Right. The Rights have no voting privileges and are attached to and automatically traded with our common stock until the occurrence of specified trigger events. The Rights will expire on the earlier of May 10, 2014 or the exchange or redemption of the Rights.  

There were not any shares of preferred stock issued and outstanding at June 30, 2013.

18

Note 12 –Segment information 

We determine operating segments using the management approach. The management approach designates the internal organization that is used by management for making operating decisions and assessing performance as the source of our operating segments. It also requires disclosures about products and services, geographic areas and major customers.  

We have defined our operating segment based on geographic regions. We sell our products in four geographic regions. Our sales to these regions share similar economic characteristics, similar product mix, similar customers, and similar distribution methods. Accordingly, we have elected to aggregate these four geographic regions into a single operating segment. Revenue from the sale of our products which are similar in nature and software maintenance are reflected as total net sales in our Consolidated Statements of Income.  

Total net sales, operating income, interest income and long-lived assets, classified by the major geographic areas in which we operate, are as follows:

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Net sales:
Americas	$	112,522	$	113,175	$	232,239	$	219,962
Europe		74,611		73,060		153,672		148,767
East Asia		81,574		73,927		142,344		132,851
Emerging Markets		27,419		32,097		54,359		51,812
	$	296,126	$	292,259	$	582,614	$	553,392
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Operating income:
Americas	$	5,673	$	9,590	$	18,596	$	22,121
Europe		30,037		33,245		62,996		67,882
East Asia		33,524		32,868		59,766		58,870
Emerging Markets		8,360		13,447		16,886		18,636
Unallocated:
Research and development expenses		(58,473)		(54,286)		(119,729)		(108,301)
	$	19,121	$	34,864	$	38,515	$	59,208
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Interest income:
Americas	$	(2)	$	16	$	19	$	107
Europe		152		90		284		184
East Asia		8		4		14		25
Emerging Markets		19		22		45		46
	$	177	$	132	$	362	$	362
		June 30, 2013		December 31, 2012
		(Unaudited)
Long-lived assets:
Americas	$	126,200	$	120,329
Europe		49,478		48,465
East Asia		4,274		3,428
Emerging Markets		83,963		77,499
	$	263,915	$	249,721

Total sales outside the U.S. for the three month periods ended June 30, 2013 and 2012 were $191.9 million and $186.1 million, respectively, and $372.4 million and $350.1 million for the six month periods ended June 30, 2013 and 2012, respectively.

19

Note 13 - Debt

On May 9, 2013, we entered into a Loan Agreement (the “Loan Agreement”) with Wells Fargo Bank, National Association (the “Lender”). The Loan Agreement provides for a $50 million unsecured revolving line of credit with a scheduled maturity date of May 9, 2018 (the “Maturity Date”). Proceeds of loans made under the Loan Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Loan Agreement in whole or in part at any time without premium or penalty. Certain of our existing and future material domestic subsidiaries are required to guaranty our obligations under the Loan Agreement. As of June 30, 2013, we had $50 million available for borrowings under this revolving line of credit.

The loans bear interest, at our option, at a base rate determined in accordance with the Loan Agreement, plus a spread of 0.0% to 0.5%, or a LIBOR rate plus a spread of 1.125% to 2.0%, in each case with such spread determined based on a ratio of consolidated indebtedness to EBITDA, determined in accordance with the Loan Agreement. Principal, together with all accrued and unpaid interest, is due and payable on the Maturity Date. We are also obligated to pay a quarterly commitment fee, payable in arrears, based on the available commitments at a rate of 0.175% to 0.300%, with such rate determined based on the ratio described above. The Loan Agreement contains customary affirmative and negative covenants. The affirmative covenants include, among other things, delivery of financial statements, compliance certificates and notices; payment of taxes and other obligations; maintenance of existence; maintenance of properties and insurance; and compliance with applicable laws and regulations. The negative covenants include, among other things, limitations on indebtedness, liens, mergers, consolidations, acquisitions and sales of assets, investments, changes in the nature of the business, affiliate transactions and certain restricted payments. The Loan Agreement also requires us to maintain a ratio of consolidated indebtedness to EBITDA equal to or less than 3.25 to 1.00, and a ratio of consolidated EBITDA to interest expense greater than or equal to 3.00 to 1.00, in each case determined in accordance with the Loan Agreement. As of June 30, 2013, we were in compliance with all covenants in the Loan Agreement.

The Loan Agreement contains customary events of default including, among other things, payment defaults, breaches of covenants or representations and warranties, cross-defaults with certain other indebtedness, bankruptcy and insolvency events, judgment defaults and change in our control, subject to grace periods in certain instances. Upon an event of default, the lender may declare all or a portion of the outstanding obligations payable by us to be immediately due and payable and exercise other rights and remedies provided for under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Loan Agreement at a per annum rate of interest equal to 2.00% above the otherwise applicable interest rate.

Note 14 – Commitments and Contingencies  

We offer a one-year limited warranty on most hardware products, with a two or three-year warranty on a subset of our hardware products, which is included in the sales price of many of our products. Provision is made for estimated future warranty costs at the time of the sale for the estimated costs that may be incurred under the basic limited warranty. Our estimate is based on historical experience and product sales during the period.  

The warranty reserve for the six month periods ended June 30, 2013 and 2012, respectively, was as follows:

		Six Months Ended June 30,
(In thousands)		(Unaudited)
		2013		2012
Balance at the beginning of the period	$	1,435	$	1,271
Accruals for warranties issued during the period		1,459		1,104
Settlements made (in cash or in kind) during the period		(1,392)		(1,070)
Balance at the end of the period	$	1,502	$	1,305

As of June 30, 2013, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $11 million over the next twelve months.  

As of June 30, 2013, we had outstanding guarantees for payment of customs and foreign grants totaling approximately $4.9 million, which are generally payable over the next twelve months.

20

Note 15 – Recently issued accounting pronouncements  

In January 2010, the FASB updated FASB ASC 820, Fair Value Measurements and Disclosures (FASB ASC 820) that requires additional disclosures and clarifies existing disclosures regarding fair value measurements. The additional disclosures include (i) transfers in and out of Levels 1 and 2 and (ii) activity in Level 3 fair value measurements. The update provides amendments that clarify existing disclosures on level of disaggregation and disclosures about inputs and valuation techniques. This update is effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosures about purchases, sales, issuances, and settlements in the roll forward of activity in Level 3 fair value measurements which were effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. We adopted the update on January 1, 2010 as required and subsequently adopted on January 1, 2011, the update surrounding disclosures on Level 3 fair value measurements and concluded it did not have a material impact on our consolidated financial position or results of operations. In May 2011, the FASB updated FASB ASC 820 that resulted in common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards (IFRSs). Some of the amendments clarify the FASB’s intent about the application of existing fair value measurement requirements. Other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The amendments are to be applied prospectively and are effective during interim and annual periods beginning after December 15, 2011. We adopted the update as required in the first quarter of 2012 and concluded it did not have a material impact on our consolidated financial position or results of operations.   

In September 2011, the FASB updated FASB ASC 350, Goodwill and Other (FASB ASC 350) that gives an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted the update as required in the first quarter of 2012 and concluded it did not have a material impact on our consolidated financial position or results of operations.

In February 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-02, Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income, which amends Accounting Standards Codification (“ASC”) 220, Comprehensive Income. The amended guidance requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component. Additionally, entities are required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The amended guidance does not change the current requirements for reporting net income or other comprehensive income. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. We adopted this update in the first quarter of 2013. The adoption of ASU No. 2013-02 did not have a significant impact on the Company’s consolidated financial statements, but did amend the disclosures for accumulated other comprehensive income reclassified into income.

Note 16 – Litigation  

We are not currently a party to any material litigation. However, in the ordinary course of our business, we are involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any future litigation or dispute.

Note 17 – Subsequent events  

We have evaluated subsequent events through the date the financial statements were issued.  

On July 24, 2013, our Board of Directors declared a quarterly cash dividend of $0.14 per common share, payable September 3, 2013, to shareholders of record on August 12, 2013.

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Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Any statements contained herein regarding our future financial performance or operations (including, without limitation, statements to the effect that we “believe,” "expect," "plan," "may," "will," "project," "continue," or "estimate" or other variations thereof or comparable terminology or the negative thereof) should be considered forward-looking statements. Actual results could differ materially from those projected in the forward-looking statements as a result of a number of important factors, including those set forth under the heading “Risk Factors” beginning on page 33, and the discussion below. Readers are also encouraged to refer to the documents regularly filed by us with the Securities and Exchange Commission, including our Annual Report on Form 10-K for further discussion of our business and the risks attendant thereto.

Overview

National Instruments Corporation (“we”, “us” or “our”) designs, manufactures and sells tools to engineers and scientists that accelerate productivity, innovation and discovery. Our graphical system design approach to engineering provides an integrated software and hardware platform that speeds the development of systems needing measurement and control. We believe our long-term vision and focus on technology supports the success of our customers, employees, suppliers and stockholders. We sell to a large number of customers in a wide variety of industries. We have been profitable in every year since 1990.

The key strategies that we focus on in running our business are the following:

Expanding our broad customer base

We strive to increase our already broad customer base by serving a large market on many computer platforms, through a global marketing and distribution network. We also seek to acquire new technologies and expertise from time to time to open new opportunities for our existing product portfolio.

Maintaining a high level of customer satisfaction

To maintain a high level of customer satisfaction we strive to offer innovative, modular and integrated products through a global sales and support network. We strive to maintain a high degree of backwards compatibility across different platforms to preserve the customer’s investment in our products. In this time of intense global competition, we believe it is crucial that we continue to offer products with quality and reliability, and that our products provide cost-effective solutions for our customers.

Leveraging external and internal technology

Our product strategy is to provide superior products by leveraging generally available technology, supporting open architectures on multiple platforms and by leveraging our core technologies such as custom application specific integrated circuits (“ASICs”) across multiple products.

We sell into test and measurement (“T&M”) and industrial/embedded applications in a broad range of industries and as such are subject to the economic and industry forces which drive those markets. It has been our experience that the performance of these industries and our performance is impacted by general trends in industrial production for the global economy and by the specific performance of certain vertical markets that are intensive consumers of measurement technologies. Examples of these markets are semiconductor capital equipment, telecom and mobile devices, consumer electronics, defense, aerospace and automotive.

We distribute our software and hardware products primarily through a direct sales organization. We also use independent distributors, OEMs, VARs, system integrators and consultants to market our products. We have sales offices in the U.S. and sales offices and distributors in key international markets. Sales outside of the Americas accounted for approximately 62% and 61% of our revenues during the three month periods ended June 30, 2013 and 2012, respectively, and 60% for each of the six month periods ended June 30, 2013 and 2012. The vast majority of our foreign sales are denominated in the customers’ local currency, which exposes us to the effects of changes in foreign currency exchange rates. We expect that a significant portion of our total revenues will continue to be derived from international sales. (See Note 12 - Segment information of Notes to Consolidated Financial Statements for details concerning the geographic breakdown of our net sales, operating income, interest income and long-lived assets). 

We manufacture a substantial majority of our products at our facilities in Debrecen, Hungary. Additional production primarily of low volume or newly introduced products is done in Austin, Texas. We continue to expand manufacturing operations at our manufacturing site in Penang, Malaysia. It is expected that by the end of 2013 our site in Malaysia will produce around 15% to 20% of our total production and will focus primarily on making existing products transferred from our Hungarian production facility to support anticipated growth in our business. Our product manufacturing operations can be divided into four areas: electronic circuit card and module assembly; chassis and cable assembly; technical manuals and product support documentation; and software duplication. We manufacture most of the electronic circuit card assemblies, modules and chassis in-house, although subcontractors are used from time to time. We manufacture some of our electronic cable assemblies in-house, but many assemblies are produced by subcontractors. We primarily subcontract our software duplication, our technical manuals and product support documentation.

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We believe that our long-term growth and success depend on delivering high quality software and hardware products on a timely basis. Accordingly, we focus significant efforts on research and development. We focus our research and development efforts on enhancing existing products and developing new products that incorporate appropriate features and functionality to be competitive with respect to technology, price and performance. Our success also is dependent on our ability to obtain and maintain patents and other proprietary rights related to technologies used in our products. We have engaged in litigation and where necessary, will likely engage in future litigation to protect our intellectual property rights. In monitoring and policing our intellectual property rights, we have been and may be required to spend significant resources.

Our operating results fluctuate from period to period due to changes in global economic conditions and a number of other factors. As a result, we believe our historical results of operations should not be relied upon as indications of future performance. There can be no assurance that our net sales will grow or that we will remain profitable in future periods.

Current business outlook 

Many of the industries we serve have historically been cyclical and have experienced periodic downturns. In assessing our business, we consider the trends in the PMI, global industrial production as well as industry reports on the specific vertical industries that we target. We remain very concerned by the continued general weakness of the Global PMI in the first half of 2013. For the three month period ended June 30, 2013, the average of the PMI was 50.5 indicating general weakness. For July 2013, the most recent PMI reading was 50.8, and the new order element of the PMI was 51.6 which is relatively unchanged from the June 2013 new order element reading of 51.5. The continued weakness in the PMI, with the three largest economies, the US, the Eurozone and China all falling below 50 at some point during Q2, makes us conservative in planning for the rest of 2013. In the past, we have seen these trends in the industrial economy have an adverse effect on the spending patterns of businesses, including our current and potential customers, which could adversely affect our revenues, particularly those derived from larger orders.

During the three and six month periods ended June 30, 2013, we received $13 million and $30 million, respectively, in new orders from our largest customer for three different applications that we serve for them. The majority of these orders relate to a new application in a highly competitive space. As a result, the gross margin for these orders is significantly below our historical average. During the three and six month periods ended June 30, 2013, the gross margin related to these orders had the effect of decreasing our consolidated gross margin by approximately 280 and 150 basis points, respectively. During the three month period ended March 31, 2013, we increased our inventory to meet expected demand from this customer during the second quarter. We have determined that demand will be lower than we had originally anticipated and therefore have taken steps to reduce our inventory levels to match our anticipated demand for the remainder of 2013.

During the three month period ended June 30, 2013, we made adjustments to reduce our operating expenses in response to the weaker than anticipated demand for our products. During the three month period ended June 30, 2013, our operating expenses were $3.9 million below what we anticipated compared to the three month period ended March 31, 2013, when our operating expenses exceeded our anticipated expenses by $3.6 million.

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Results of Operations

The following table sets forth, for the periods indicated, the percentage of net sales represented by certain items reflected in our Consolidated Statements of Income:

	Three Months Ended June 30,				Six Months Ended June 30,
	(Unaudited)				(Unaudited)
	2013		2012		2013		2012
Net sales:
Americas	38.0	%	38.7	%	39.9	%	39.7	%
Europe	25.2		25.0		26.4		26.9
East Asia	27.5		25.3		24.4		24.0
Emerging Markets	9.3		11.0		9.3		9.4
Consolidated net sales	100.0		100.0		100.0		100.0
Cost of sales	28.3		24.2		26.4		23.9
Gross profit	71.7		75.8		73.6		76.1
Operating expenses:
Sales and marketing	38.0		37.9		38.9		38.1
Research and development	19.7		18.6		20.6		19.6
General and administrative	7.5		7.4		7.7		7.7
Acquisition related adjustment	-		-		(0.2)		-
Total operating expenses	65.2		63.9		66.9		65.4
Operating income	6.5		11.9		6.6		10.7
Other income (expense):
Interest income	0.1		0.0		0.1		0.1
Net foreign exchange loss	(0.4)		(0.4)		(0.4)		(0.4)
Other income, net	0.1		0.1		0.1		0.0
Income before income taxes	6.3		11.6		6.3		10.4
Provision for (benefit from) income taxes	1.4		2.6		0.6		2.3
Net income	4.9	%	9.0	%	5.7	%	8.1	%

Figures may not sum due to rounding.

Results of Operations for the Three and Six Month Periods ended June 30, 2013 and 2012 

Net Sales.  Our net sales were $296 million and $292 million for the three month periods ended June 30, 2013 and 2012, respectively, an increase of 1%. For the same periods, product sales were $276 million and $269 million, an increase of 2%, and software maintenance sales were $20 million and $22 million, a decrease of 7%. 

For the six month periods ended June 30, 2013 and 2012, our consolidated net sales were $583 million and $553 million, respectively, an increase of 5%. For the same periods, product sales were $541 million and $508 million, respectively, an increase of 6%, and software maintenance sales were $42 million and $44 million, respectively, a decrease of 5%.

We did not take any significant action with regard to pricing during the three or six month periods ended June 30, 2013 and 2012. 

Large orders, defined as orders with a value greater than $100,000, decreased by 30% year over year during the three months ended June 30, 2013, compared to year over year growth of 134% in the three month period ended June 30, 2012. In the six month period ended June 30, 2013, large orders decreased by 5% year over year compared to year over year growth 108% during the six month period ended June 30, 2012. A significant amount of our large order growth in three and six month periods ended June 30, 2012, was the result of orders from our largest customer. Year over year, orders from this customer have declined in three and six month periods ended June 30, 2013. Orders from this customer are discussed in more detail below. During the three month periods ended June 30, 2013 and 2012, large orders were 21% and 27% of our total orders, respectively, and for each of the six month periods ended June 30, 2013 and 2012, large orders were 22% of our total orders. Larger orders are more volatile, are subject to greater discount variability and may contract at a faster pace during an economic downturn.

With respect to our largest customer, we are serving three different applications for this customer, each involving the use of LabVIEW and the NI PXI platform. Two of the applications we serve for this customer ramped up significantly for initial production in 2012, and as a result, the customer is ordering far less units this year. The majority of orders from this customer in 2013 relate to a new RF test application. During the three and six month periods ended June 30, 2013, we received $13 million and $30 million, respectively, in new orders from our largest customer. In the three and six month periods ended June 30, 2013, we recognized net revenue of $23 million and $27 million, respectively, from these orders. During the three and six month periods ended June 30, 2012, we received $38 million and $49 million, respectively, in new orders from this same customer. In the three and six month periods ended June 30, 2012, we recognized net revenue of $21 million and $25 million, respectively, from these orders.

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For the three month periods ended June 30, 2013 and 2012, net sales in the Americas were $113 million and $113 million, respectively, a decrease of 0.6%. Sales in the Americas, as a percentage of consolidated sales were 38% and 39% in the three month periods ended June 30, 2013 and 2012, respectively. In Europe, net sales were $75 million and $73 million in the three month periods ended June 30, 2013 and 2012, respectively, an increase of 2%. Sales in Europe, as a percentage of consolidated sales were 25% and 25% in the three month periods ended June 30, 2013 and 2012, respectively. In East Asia, net sales were $82 million and $74 million in the three month periods ended June 30, 2013 and 2012, respectively, an increase of 10%. Sales in East Asia, as a percentage of consolidated sales were 28% and 25% in the three month periods ended June 30, 2013 and 2012, respectively. In Emerging Markets, net sales were $27 million and $32 million in the three months ended June 30, 2013 and 2012, respectively, a decrease of 15%. Sales in Emerging Markets, as a percentage of consolidated sales were 9% and 11% in the three month periods ended June 30, 2013 and 2012, respectively.

For the six month periods ended June 30, 2013 and 2012, net sales in the Americas were $232 million and $220 million, respectively, an increase of 6%. Sales in the Americas, as a percentage of consolidated sales were 40% and 40% in the six month periods ended June 30, 2013 and 2012, respectively. In Europe, net sales were $154 million and $149 million in the six month periods ended June 30, 2013 and 2012, respectively, an increase of 3%. Sales in Europe, as a percentage of consolidated sales were 26% and 27% in the six month periods ended June 30, 2013 and 2012, respectively. In East Asia, net sales were $142 million and $133 million in the six month periods ended June 30, 2013 and 2012, respectively, an increase of 7%. Sales in East Asia, as a percentage of consolidated sales were 24% in each of the six month periods ended June 30, 2013 and 2012. In Emerging Markets, net sales were $54 million and $52 million in the six months ended June 30, 2013 and 2012, respectively, an increase of 5%. Sales in Emerging Markets, as a percentage of consolidated sales were 9% in each of the six month periods ended June 30, 2013 and 2012.

We expect sales outside of the Americas to continue to represent a significant portion of our revenue. We intend to continue to expand our international operations by increasing our presence in existing markets, adding a presence in some new geographical markets and continuing the use of distributors to sell our products in some countries.  

Almost all of the sales made by our direct sales offices in the Americas, outside of the U.S., Europe, East Asia, and Emerging Markets are denominated in local currencies, and accordingly, the U.S. dollar equivalent of these sales is affected by changes in foreign currency exchange rates. For the three months ended June 30, 2013, in local currency terms, our consolidated net sales increased by $6.5 million or 2%, Americas sales decreased by $759,000 or 1%, European sales increased by $3.4 million or 5%, sales in East Asia increased by $8 million or 11%, and sales in Emerging Markets decreased by $4.1 million or 13%, compared to the three month period ended June 30, 2012. During this same period, the change in exchange rates had the effect of decreasing our consolidated sales by $3.4 million or 1%, with negligible impact in the Americas, decreasing European sales by $1.7 million or 2%, decreasing East Asia sales by $1.2 million or 2%, and decreasing sales in Emerging Markets by $561,000 or 2%.  

For the three month period ended June 30, 2012, in local currency terms, our consolidated net sales increased by $46 million or 18%, Americas sales increased by $10 million or 10%, European sales increased by $752,000 or 1%, sales in East Asia increased by $23 million or 45%, and sales in Emerging Markets increased by $12 million or 55%. During this same period, the change in exchange rates had the effect of decreasing our consolidated sales by $8 million or 3%, decreasing Americas sales by $1 million or 1%, decreasing European sales by $4.8 million or 6.3%, decreasing sales in East Asia by $429,000 or 1%, and decreasing sales in Emerging Markets by $1.8 million or 8%

For the six month period ended June 30, 2013, in local currency terms, our consolidated net sales increased by $30 million or 5%, Americas sales increased by $12 million or 5%, European sales increased by $6.6 million or 4%, sales in East Asia increased by $9 million or 7%, and sales in Emerging Markets increased by $2.8 million or 5%, compared to the six month period ended June 30, 2012. During this same period, the change in exchange rates had the effect of decreasing our consolidated sales by $3.5 million or 1%, with negligible impact in the Americas, decreasing European sales by $1.5 million or 1%, decreasing East Asia sales by $1.7 million or 1.3%, and decreasing sales in Emerging Markets by $245,000 or 0.5%.

For the six month period ended June 30, 2012, in local currency terms, our consolidated net sales increased by $69 million or 14%, Americas sales increased by $21 million or 10%, European sales increased by $5.7 million or 4%, sales in East Asia increased by $30 million or 29%, and increasing Emerging Markets by $12 million or 29% compared to the six month period ended in the prior year. During this same period, the change in exchange rates had the effect of decreasing our consolidated sales by $7.7 million or 2%, decreasing Americas sales by $1.6 million or 1%, decreasing European sales by $5.6 million or 3.6%, increasing sales in East Asia sales by $2.1 million or 2%, and decreasing sales in Emerging markets by $2.1 million or 5%.

To help protect against changes in U.S dollar equivalent value caused by fluctuations in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales, we have instituted a foreign currency cash flow hedging program. We hedge portions of our forecasted revenue denominated in foreign currencies with forward and average rate forward contracts. During the three month periods ended June 30, 2013 and 2012, these hedges had the effect of increasing our consolidated sales by $804,000 and increasing our consolidated sales by $728,000, respectively. During the six month periods ended June 30, 2013 and 2012, these hedges had the effect of increasing our consolidated sales by $2.0 million and increasing our consolidated sales by $1.2 million, respectively. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for further discussion regarding our cash flow hedging program and its related impacted on our consolidated sales for 2013 and 2012). 

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Gross Profit. For the three month periods ended June 30, 2013 and 2012, gross profit was $212 million and $221 million, respectively, a decrease of 4%. As a percentage of sales, gross profit was 72% and 76% for the three month periods ended June 30, 2013 and 2012, respectively. For the six month periods ended June 30, 2013 and 2012, gross profit was $429 million and $421 million, respectively, an increase of 2%. For these same periods, as a percentage of sales, gross profit was 74% and 76%, respectively. During the three and six month periods ended June 30, 2013, our gross margin was negatively impacted by the incremental overhead related to our new manufacturing facility in Penang, Malaysia and the significantly lower margin on orders for our RF test application business with our largest customer. During the three and six month periods ended June 30, 2013, the gross margin related to these orders had the effect of decreasing our consolidated gross margin by approximately 280 and 150 basis points, respectively.  We continued to focus on cost control and cost reduction measures throughout our manufacturing cycle.

For the three month periods ended June 30, 2013 and 2012, the change in exchange rates had the effect of decreasing our cost of sales by $206,000 and $501,000, respectively. For the six month periods ended June 30, 2013 and 2012, the change in exchange rates had the effect of decreasing our cost of sales by $200,000 and $647,000, respectively. To help protect against changes in our cost of sales caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows, we have a foreign currency cash flow hedging program. We hedge portions of our forecasted costs of sales denominated in foreign currencies with forward contracts. During the three month periods ended June 30, 2013 and 2012, these hedges had the effect of increasing our cost of sales by $34,000 and decreasing our cost of sales by $103,000, respectively. During the six month periods ended June 30, 2013 and 2012, these hedges had the effect of decreasing our cost of sales by $74,000 and $95,000, respectively. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for further discussion regarding our cash flow hedging program and its related impacted on our consolidated sales for 2013 and 2012).  

Operating Expenses. For the three month periods ended June 30, 2013 and 2012, operating expenses were $193 million and $187 million, respectively, an increase of 4%. This increase in our operating expenses was due to higher personnel related expenses of $5.1 million which included commissions, variable compensation and benefits. In addition, the overall increase is attributed to higher expenses for building and equipment of $2.7 million. Over the same period, the net impact of changes in foreign currency exchange rates decreased our operating expense by $1.6 million.

For the six month periods ended June 30, 2013 and 2012, operating expenses were $390 million and $362 million, respectively, an increase of 8%. This increase in our operating expenses was due to higher personnel related expenses of $20 million which included commissions, variable compensation and benefits. The increase in personnel expenses is related to a net increase in our overall headcount of 714 employees year over year. In addition, the overall increase is attributed to higher expenses for building and equipment of $5.2 million, higher costs related to software development of $1.6 million and higher travel related expenses of $1.4 million. Over the same period, the net impact of changes in foreign currency exchange rates decreased our operating expenses by $928,000.

For the three month period ended June 30, 2013, operating expenses decreased by $3.7 million or 2% from the three month period ended March 31, 2013, as a result of cost cutting measures implemented in response to the weaker than anticipated demand for our products. During the three month period ended June 30, 2013, our operating expenses were $3.9 million below what was anticipated compared to the three month period ended March 31, 2013, when our operating expenses exceeded our anticipated expenses by $3.6 million.We do not typically maintain a large amount of order backlog as orders typically translate to sales quickly. As such, any weakness in orders typically has a pronounced impact on our net sales in the short term. Given the broad weakness in the industry, we have identified additional actions to take if we need to further reduce our planned spending for the rest of 2013.

As a percentage of net sales, operating expenses in the three months ended June 30, 2013 and 2012 were 65% and 64%, respectively. The year over year increase in our operating expenses as a percent of sales is attributed to the fact that our net sales grew by 1% while operating expenses increased by 4% based on the factors discussed above. For the six month periods ended June 30, 2013 and 2012, operating expenses as a percentage of net sales were 67% and 65%, respectively. This year over year increase in our operating expenses as a percentage of net sales is attributed to the fact that we grew our overall operating expenses by 8% while our net sales grew by 5%.

We believe that our long-term growth and success depends on developing high quality software and hardware products on a timely basis. As such, we have made investments in research and development and our field sales force a priority. For the three month periods ended June 30, 2013 and 2012, our sales and marketing expenses were $113 million and $111 million, respectively, and research and development expenses were $58 million and $54 million, respectively. For the six month periods ended June 30, 2013 and 2012, our sales and marketing expenses were $227 million and $211 million, respectively, and research and development expenses were $120 million and $108 million, respectively.

The increase in sales and marketing expenses for the three and six month periods ended June 30, 2013, was primarily driven by an increase in headcount of 266 from June 30, 2012, to June 30, 2013. Sales and marketing headcount increased by 21 from March 31, 2013, to June 30, 2013. The increase in research and development expenses for the three and six month periods ended June 30, 2013 was primarily driven by an increase in headcount of 209 from June 30, 2012 to June 30, 2013. Research and development headcount increased by 19 from March 31, 2013, to June 30, 2013.

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From a regional perspective, the increase in research and development expenses in the three and six months ended June 30, 2013 had a larger impact on the operating expenses of the Americas as the Americas absorbed $3.5 million of the overall $4.2 million increase in the three month period ended June 30, 2013 and $9 million of the overall $11 million in the six month period ended June 30, 2013.

Operating Income.  For the three month periods ended June 30, 2013 and 2012, operating income was $19 million and $35 million, respectively, a decrease of 45%. As a percentage of net sales, operating income was 6% and 12%, respectively, in these same periods. The decrease in our operating income as a percent of sales during this period can be attributed to the fact that operating expenses grew by 4% year over year while net sales grew by 1% year over year and gross margin decreased by 4% year over year as a result of the factors detailed above. For the six month periods ended June 30, 2013 and 2012, operating income was $39 million and $59 million, respectively, a decrease of 35%. As a percentage of net sales, operating income was 7% and 11%, respectively, in these same periods. This decline in operating income as a percent of sales is attributable to the fact that operating expenses grew by 8% year over year while net sales grew by 5% year over year and gross margin decreased by 3% year over year as a result of the factors detailed above.

Interest Income.For the three month periods ended June 30, 2013 and 2012, interest income was $177,000 and $132,000, respectively. For the six month periods ended June 30, 2013 and 2012, interest income was $362,000 and $362,000, respectively. We continue to see low yields for high quality investment alternatives that comply with our corporate investment policy. We do not expect yields in these types of investments to increase during the remainder of 2013.

Net Foreign Exchange Loss.For the three month periods ended June 30, 2013 and 2012, net foreign exchange loss was $(1.1) million and $(1.0) million, respectively. During the six month periods ended June 30, 2013 and 2012, net foreign exchange loss was $(2.5) million and $(1.9) million, respectively. These results are attributable to movements in the foreign currency exchange rates between the U.S. dollar and foreign currencies in subsidiaries for which our functional currency is not the U.S. dollar. During the three and six month periods ended June 30, 2013, there was mixed volatility in the exchange rates between the U.S. dollar and most of the major currencies in the markets in which we do business which included significant strengthening of the U.S. dollar against the Japanese yen. We cannot predict the direction or degree of future volatility in these exchange rates. In the past, we have noted that significant volatility in foreign currency exchange rates in the markets in which we do business has had a significant impact on the revaluation of our foreign currency denominated firm commitments, on our ability to forecast our U.S. dollar equivalent revenues and expenses and on the effectiveness of our hedging programs. In the past, these dynamics have also adversely affected our revenue growth in international markets and may pose similar challenges in the future. We recognize the local currency as the functional currency in virtually all of our international subsidiaries.   

We utilize foreign currency forward contracts to hedge our foreign denominated net foreign currency balance sheet positions to help protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically hedge up to 90% of our outstanding foreign denominated net receivable or payable positions and typically limit the duration of these foreign currency forward contracts to approximately 90 days. The gain or loss on these derivatives as well as the offsetting gain or loss on the hedged item attributable to the hedged risk is recognized in current earnings under the line item “Net foreign exchange loss”. Our hedging strategy decreased our foreign exchange loss by $502,000 in the three month period ended June 30, 2013 and reduced our foreign exchange losses by $794,000 in the three month period ended June 30, 2012. Our hedging strategy decreased our foreign exchange losses by $1.8 million in the six month period ended June 30, 2013 and increased our foreign exchange losses by $236,000 in the six month period ended June 30, 2012.

Provision for Income Taxes.For each of the three month periods ended June 30, 2013 and 2012, our provision for income taxes reflected an effective tax rate of 23%. For the six month periods ended June 30, 2013 and 2012, our provision for income taxes reflected an effective tax rate of 10% and 22%, respectively. The factors that caused our effective tax rate to change year-over-year are detailed in the table below:

	Three Months Ended		Six Months Ended
	June 30, 2013		June 30, 2013
	(Unaudited)
Effective tax rate at June 30, 2012	23	%	22	%
Change in profit in foreign jurisdictions with reduced tax rates	4		2
Change in tax benefit from equity awards	(1)		(2)
Change in research and development tax credit	(3)		(12)
Effective tax rate at June 30, 2013	23	%	10	%

(See Note 9 – Income taxes of Notes to Consolidated Financial Statements for further discussion regarding changes in our effective tax rate and a reconciliation of income taxes at the U.S. federal statutory income tax rate of 35% to our effective tax rate).

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Other operational metrics

We believe that the following additional unaudited operational metrics assist investors in assessing our operational performance relative to our others in our industry and to our historical results.

Acquisition related deferred revenue and GSA accrual adjustment excluded from revenue. For the three three and six month periods ended June 30, 2013 and 2012, our excluded acquisition related deferred revenue and GSA accrual adjustment was as follows: 

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Revenue
Acquisition related deferred revenue	$	-	$	887	$	-	$	2,156
GSA accrual		-		(1,349)		-		(1,349)
Provision for income taxes		-		162		-		(282)
Total	$	-	$	(300)	$	-	$	525

In June 2012, we entered into a Settlement Agreement with the General Services Administration (GSA) and paid approximately $11.8 million in settlement of overpayments under our previous agreement with GSA. In September 2011, we established an accrual of $13.1 million related to this matter. We cancelled our contract with GSA in May 2011.

Charges related to stock-based compensation, amortization of acquired intangibles and acquisition related transaction costs. For the three and six month periods ended June 30, 2013 and 2012, the gross charges related to stock-based compensation as a component of cost of sales, sales and marketing, research and development, and general and administrative expenses and the total charges were as follows:

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Stock-based compensation
Cost of sales	$	408	$	438	$	829	$	853
Sales and marketing		2,926		2,945		5,999		5,585
Research and development		2,596		2,679		5,333		5,128
General and administrative		942		921		1,845		1,720
Provision for income taxes		(1,877)		(1,880)		(3,691)		(3,387)
Total	$	4,995	$	5,103	$	10,315	$	9,899

For the three and six month periods ended June 30, 2013 and 2012, the gross charges related to the amortization of acquisition related intangibles as a component of cost of sales, sales and marketing and other income (expense), net and the total charges were as follows:

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Amortization of acquired intangibles
Cost of sales	$	2,613	$	2,186	$	5,373	$	4,596
Sales and marketing		498		448		1,016		895
Research and development		569		-		1,242		-
Other income, net		188		193		381		382
Provision for income taxes		(1,268)		(894)		(2,618)		(1,866)
Total	$	2,600	$	1,933	$	5,394	$	4,007

For the three and six month periods ended June 30, 2013 and 2012, the gross charges related to acquisition related transaction costs as a component of cost of sales, sales and marketing, research and development and general and administrative expenses and the total charges were as follows:

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Acquisition related transaction costs
Cost of sales	$	3	$	-	$	3	$	32
Sales and marketing		142		19		260		239
Research and development		266		56		410		162
General and administrative		69		9		175		56
Acquisition related adjustment		-		-		(1,316)		-
Provision for income taxes		(153)		(29)		(259)		(171)
Total	$	327	$	55	$	(727)	$	318

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Liquidity and Capital Resources

Working Capital, Cash and Cash Equivalents and Short-term Investments.  The following table presents our working capital, cash and cash equivalents and short-term investments:

		June 30, 2013		December 31,		Increase/
(In thousands)		(unaudited)		2012		(Decrease)
Working capital	$	546,170	$	522,744	$	23,426
Cash and cash equivalents (1)		169,580		161,996		7,584
Short-term investments (1)		153,970		173,166		(19,196)
Total cash, cash equivalents and short-term investments	$	323,550	$	335,162	$	(11,612)
(1) Included in working capital

During the six month period ended June 30, 2013, our working capital increased by $23 million. Overall, current assets increased by $12 million while current liabilities decreased by $11 million. The increase in our current assets was the result of a $15 million increase in inventory, a $20 million increase in prepaid expenses and other current assets, offset by a $14 million decrease in accounts receivable and an $12 million decrease in our cash, cash equivalents and short-term investments. These overall increases in working capital can be attributed to our overall business growth during the six month period ended June 30, 2013. 

Accounts receivable decreased by $14 million to $173 million at June 30, 2013, from $187 million at December 31, 2012. The majority of this decline occurred during the three month period ended March 31, 2013 as a result of a  sequential revenue decline to $286 million for the three month period ended March 31, 2013, from $300 million for the three month period ended December 31, 2012. There was not a significant change in our accounts receivable from March 31, 2013 to June 30, 2013. Days sales outstanding remained relatively constant at 56 days at June 30, 2013, compared to 55 days at December 31, 2012.

Inventory increased $15 million to $185 million at June 30, 2013, from $170 million at December 31, 2012. As a result of this increase, inventory turns decreased to 1.7 at June 30, 2013 from 1.9 at December 31, 2012. During the three month period ended March 31, 2013, we increased our inventory primarily to meet anticipated demand from our largest customer. We have determined that demand will be lower than we had originally anticipated and therefore have taken steps to reduce our inventory levels to match our anticipated demand for the remainder of 2013. From March 31, 2013, to June 30, 2013, our inventory balance decreased by $3.3 million from $189 million to $185 million.

Prepaid expenses and other current assets increased $20 million to $68 million June 30, 2013, from $48 million at December 31, 2013. The increase was the result of increases in federal and other taxes receivable, the increase in the fair value of our foreign currency contracts designated as hedging instruments, primarily the result of the devaluation of the Japanese yen against the U.S. dollar and increases in other prepaid items such as insurance and maintenance.

Our cash and cash equivalent balances are held in numerous financial institutions throughout the world, including substantial amounts held outside of the U.S., however, the majority of our cash and investments that are located outside of the U.S. are denominated in the U.S. dollar with the exception of $16 million U.S. dollar equivalent of German government sovereign debt and $16 million U.S. dollar equivalent of corporate bonds that are denominated in Euro. Our German government sovereign debt holdings have a maximum maturity of 24 months and carry Aaa/AAA ratings. Our short-term investments do not include sovereign debt from any other countries in Europe. At June 30, 2013, we had $324 million in cash, cash equivalents and short-term investments. Approximately $81 million or 25% of these amounts were held in domestic accounts with various financial institutions and $242 million or 75% was held in accounts outside of the U.S. with various financial institutions. At June 30, 2013, we had cash and cash equivalents of $170 million of which $61 million or 36% was held in domestic accounts and $109 million or 64% was held in various accounts of our foreign subsidiaries. At June 30, 2013, we had short-term investments of $154 million of which $20 million or 13% was held in our investment accounts in the U.S. and $134 million or 87% was held in investment accounts of our foreign subsidiaries. Most of the amounts held outside of the U.S. could be repatriated to the U.S., but under current law, would be subject to U.S. federal income taxes, less applicable foreign tax credits. We have provided for the U.S. federal tax liability on these amounts for financial statement purposes, except for foreign earnings that are considered indefinitely reinvested outside of the U.S. Repatriation could result in additional U.S. federal income tax payments in future years. We utilize a variety of tax planning and financing strategies with the objective of having our worldwide cash available in the locations in which it is needed.

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Cash Provided and (Used) in the Six Months Ended June 30, 2013 and 2012.  Cash, cash equivalents and short-term investments decreased by $12 million to $324 million at June 30, 2013 from $335 million at December 31, 2012. The following table summarizes the proceeds and (uses) of cash:  

		Six Months Ended June 30,
(In thousands)		(unaudited)
		2013		2012
Cash provided by operating activities	$	44,392	$	41,801
Cash (used in) provided by investing activities		(24,735)		104,496
Cash used in financing activities		(12,073)		(17,503)
Net change in cash equivalents		7,584		128,794
Cash and cash equivalents at beginning of year		161,996		142,608
Cash and cash equivalents at end of period	$	169,580	$	271,402

For the six month periods ended June 30, 2013 and 2012, cash provided by operating activities was $44 million and $42 million, respectively. Year over year, we had an increase in cash provided by operating assets and liabilities of $15 million offset by a decrease in net income of $12 million.

Investing activities used cash of $25 million during the six month period ended June 30, 2013, as the result of capital expenditures of $33 million and capitalization of internally developed software and other intangibles of $11 million, offset by  the net sale of $19 million of short-term investments to fund liquidity for operating needs. Capital expenditures during the six month period ended June 30, 2013 included payments related to additional land use rights and the finishing stages of the construction of our Malaysian manufacturing facility as well as leasehold improvements, computers, equipment and furniture and fixtures to support operations in our Malaysian manufacturing facility as well as other parts of our business. Investing activities provided cash of $104 million during the six month period ended June 30, 2012, as the result of the net sale of $144 million of short-term investments offset by the purchase of property and equipment of $29 million and capitalization of internally developed software of $10 million.

Financing activities used cash of $12 million during the six month period ended June 30, 2013, which was the result of $21 million received from the issuance of our common stock from the exercise of stock options and from our employee stock purchase plan, offset by $35 million used to pay dividends to our stockholders. Financing activities used cash of $18 million during the six month period ended June 30, 2012, which was the result of $14 million received from the issuance of our common stock from the exercise of stock options and under our employee stock purchase plan, offset by $34 million used to pay dividends to our stockholders.

From time to time, our Board of Directors has authorized various programs to repurchase shares of our common stock depending on market conditions and other factors. We did not make any purchases under this program during the six month period ended June 30, 2013. At June 30, 2013, there were 3,932,245 shares remaining available for repurchase under this program. This repurchase program does not have an expiration date.

During the six month period ended June 30, 2013, we received more proceeds from the exercise of stock options compared to the six month period ended June 30, 2012. The timing and number of stock option exercises and the amount of cash proceeds we receive through those exercises are not within our control and in the future, we may not generate as much cash from the exercise of stock options as we have in the past. Moreover, since 2005, it has been our practice to issue restricted stock units and not stock options to eligible employees which has reduced the number of stock options available for exercise in the future. Unlike the exercise of stock options, the issuance of shares upon vesting of restricted stock units does not result in any cash proceeds to us.

Contractual Cash Obligations.  Purchase obligations primarily represent purchase commitments for customized inventory and inventory components. At June 30, 2013, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $11 million. At December 31, 2012, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $7 million.  

Guarantees are related to payments of customs and foreign grants. At June 30, 2013, we had outstanding guarantees for payment of customs and foreign grants totaling approximately $4.9 million. At December 31, 2012, we had outstanding guarantees for payment of customs, foreign grants and potential customer disputes totaling approximately $5.0 million.

Loan Agreement. On May 9, 2013, we entered into a Loan Agreement (the “Loan Agreement”) with Wells Fargo Bank, National Association (the “Lender”). The Loan Agreement provides for a $50 million unsecured revolving line of credit with a scheduled maturity date of May 9, 2018 (the “Maturity Date”). Proceeds of loans made under the Loan Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Loan Agreement in whole or in part at any time without premium or penalty. Certain of our existing and future material domestic subsidiaries are required to guaranty our obligations under the Loan Agreement. We may choose to borrow funds against this line of credit in future periods to have sufficient domestic cash to fund continued dividends to our stockholders, to fund potential acquisitions or other domestic general corporate purposes without the need to repatriate foreign earnings. At June 30, 2013, we did not have any amounts outstanding or due as a result of borrowings under this line of credit.

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Off-Balance Sheet Arrangements.We do not have any debt or off-balance sheet debt. At June 30, 2013, we did not have any relationships with any unconsolidated entities or financial partnerships, such as entities often referred to as structured finance entities, which would have been established for the purpose of facilitating off-balance sheet arrangements. As such, we are not exposed to any financing, liquidity, market or credit risk that could arise if we were engaged in such relationships.  

Prospective Capital Needs.We believe that our existing cash, cash equivalents and short-term investments, together with cash generated from operations as well as from the exercise of employee stock options and the purchase of common stock through our employee stock purchase plan and available borrowings under our loan agreement will be sufficient to cover our working capital needs, capital expenditures, investment requirements, commitments, payment of dividends to our stockholders and repurchases of our common stock for at least the next 12 months, although the use of certain of our funds for domestic purposes may require us to repatriate foreign earnings which would be subject to the U.S. federal statutory tax rate of 35%. We may also seek to pursue additional financing or to raise additional funds by selling equity to the public.  If we elect to raise additional funds, we may not be able to obtain such funds on a timely basis on acceptable terms, if at all. If we raise additional funds by issuing additional equity or convertible debt securities, the ownership percentages of our existing stockholders would be reduced. In addition, the equity or debt securities that we issue may have rights, preferences or privileges senior to those of our common stock. We may also choose to repatriate foreign earnings which would be subject to the U.S. federal statutory tax rate of 35% and therefore, would likely have a material adverse effect on our effective tax rate and on our net income and earnings per share. We could also choose to reduce certain expenditures or payments of dividends or suspend our program to repurchase shares of our common stock. Historically, we have not had to rely on debt, public or private, to fund our operating, financing or investing activities.

Although we believe that we have sufficient capital to fund our operating activities for at least the next 12 months, our future capital requirements may vary materially from those now planned. We anticipate that the amount of capital we will need in the future will depend on many factors, including:

· difficulties and the high tax costs associated with the repatriation of earnings;  

· payment of dividends to our stockholders; 

· required levels of research and development and other operating costs;

· the overall levels of sales of our products and gross profit margins;

· the levels of inventory and accounts receivable that we maintain;

· general economic and political uncertainty and specific conditions in the markets we address, including any volatility in the industrial economy in the various geographic regions in which we do business;

· our ability to borrow under our loan agreement;

· the inability of certain of our customers who depend on credit to have access to their traditional sources of credit to finance the purchase of products from us, which may lead them to reduce their level of purchases or to seek credit or other accommodations from us;

· capital improvements for new and existing facilities; 

· our business, product, capital expenditure and research and development plans, and product and technology roadmaps; 

· acquisitions of other businesses, assets, products or technologies;

· repurchases of our common stock; 

· our relationships with suppliers and customers; and 

· the level of exercises of stock options and stock purchases under our employee stock purchase plan.

Recently Issued Accounting Pronouncements

See Note 15 – Recently Issued Accounting Pronouncements in Notes to Consolidated Financial Statements.

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Item 3.Quantitative and Qualitative Disclosures About Market Risk

Financial Risk Management

Our international sales are subject to inherent risks, including fluctuations in local economies; fluctuations in foreign currencies relative to the U.S. dollar; difficulties in staffing and managing foreign operations; greater difficulty in accounts receivable collection; costs and risks of localizing products for foreign countries; unexpected changes in regulatory requirements, tariffs and other trade barriers; difficulties and costs in the repatriation of earnings and burdens of complying with a wide variety of foreign laws.

The vast majority of our sales outside of North America are denominated in local currencies, and accordingly, the U.S. dollar equivalent of these sales is affected by changes in the foreign currency exchange rates. The change in exchange rates had the effect decreasing our consolidated sales by $3.4 million in the three month period ended June 30, 2013, and decreasing our consolidated sales by $8 million in the three month period ended June 30, 2012. The change in exchange rates had the effect of decreasing our consolidated sales by $3.5 million in the six month period ended June 30, 2013, and decreasing our consolidated sales by $7.7 million in the six month period ended June 30, 2012. Since most of our international operating expenses are also incurred in local currencies, the change in exchange rates had the effect of decreasing our consolidated operating expenses by $1.6 million in the three month period ended June 30, 2013, and decreasing our consolidated operating expenses by $3.2 million in the three month period ended June 30, 2012.  The change in exchange rates had the effect of decreasing our consolidated operating expenses by $928,000 in the six month period ended June 30, 2013, and decreasing our consolidated operating expenses by $3.6 million in the six month period ended June 30, 2012.

During the six month period ended June 30, 2013, there was mixed volatility in the exchange rates between the U.S. dollar and most of the major currencies in the markets in which we do business which included significant strengthening of the U.S. dollar against the Japanese yen. We cannot predict to what degree or how long this volatility in the foreign currency exchange markets will continue. In the past, we have noted that significant volatility in foreign currency exchange rates in the markets in which we do business has had a significant impact on the revaluation of our foreign currency denominated firm commitments, on our ability to forecast our U.S. dollar equivalent revenues and expenses and on the effectiveness of our hedging programs. In the past, these dynamics have also adversely affected our revenue growth in international markets and may pose similar challenges in the future. We recognize the local currency as the functional currency in virtually all of our international subsidiaries.

If the local currencies in which we sell our products strengthen against the U.S. dollar, we may need to lower our prices in the local currency to remain competitive in our international markets which could have a material adverse effect on our gross and net profit margins. If the local currencies in which we sell our products weaken against the U.S. dollar and if the local sales prices cannot be raised due to competitive pressures, we will experience a deterioration of our gross and net profit margins. To help protect against the change in the value caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales and expenses over the next one to two years, we have a foreign currency cash flow hedging program. We hedge portions of our forecasted revenue, cost of sales and operating expenses denominated in foreign currencies with foreign currency forward contracts. For forward contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the forward contracts designated as hedges. For purchased option contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the option contracts designated as hedges, net of the premium paid. Our foreign currency purchased option contracts are purchased “at-the-money” or “out-of-the-money.” We purchase foreign currency forward and option contracts for up to 100% of our forecasted exposures in selected currencies (primarily in Euro, Japanese yen, and Hungarian forint) and limit the duration of these contracts to 40 months or less. As a result, our hedging activities only partially address our risks from foreign currency transactions, and there can be no assurance that this strategy will be successful. We do not invest in contracts for speculative purposes.

During the three month period ended June 30, 2013, our hedges had the effect of increasing our consolidated sales by $804,000 million, increasing our cost of sales by $34,000, and increasing our operating expenses by $9,000. During the six month period ended June 30, 2013, our hedges had the effect of increasing our consolidated sales by $2.0 million, decreasing our cost of sales by $74,000, and increasing our operating expenses by $10,000.During the three month period ended June 30, 2012, our hedges had the effect of increasing our consolidated sales by $728,000, decreasing our cost of sales by $103,000, and decreasing our operating expenses by $8,000. During the six month period ended June 30, 2012, our hedges had the effect of increasing our consolidated sales by $1.2 million, decreasing our cost of sales by $95,000, and decreasing our operating expenses by $63,000. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for further discussion regarding our cash flow hedging program and its related impacted on our consolidated sales, cost of sales and operating expenses for the three and six month periods ended June 30, 2013 and 2012).  

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Inventory Management  

The marketplace for our products dictates that many of our products be shipped very quickly after an order is received. As a result, we are required to maintain significant inventories. Therefore, inventory obsolescence is a risk for us due to frequent engineering changes, shifting customer demand, the emergence of new industry standards and rapid technological advances including the introduction by us or our competitors of products embodying new technology. However, our risk of obsolescence is mitigated as many of our products have interchangeable parts and many have long lives. While we adjust for excess and obsolete inventories and we monitor the valuation of our inventories, there can be no assurance that our valuation adjustments will be sufficient.  

In recent years, we have made a concentrated effort to increase our revenue through the pursuit of orders with a value greater than $1.0 million. Fulfillment of these contracts can severely challenge our supply chain capabilities at the component acquisition, assembly and delivery stages. These contracts can also require us to develop specific product mitigation plans for product delivery constraints caused by unexpected or catastrophic situations to help assure quick production recovery and to comply with critical delivery commitments where severe contractual liabilities can be imposed on us if we fail to provide the quantity of products at the required delivery times. In order to help mitigate the risks associated with these contractual requirements, we may choose to build inventory levels for certain parts or systems. Because our contracts with such customers may allow the customer to cancel or delay orders without liability, such actions expose our business to increased risk of inventory obsolescence. During the three month period ended March 31, 2013, we increased our inventory primarily to meet anticipated demand from our largest customer. We have determined that demand will be lower than we had originally anticipated and therefore have taken steps to reduce our inventory levels to match our anticipated demand for the remainder of 2013. From March 31, 2013, to June 30, 2013, our inventory balance decreased by $3.3 million from $189 million to $185 million.

Market Risk  

We are exposed to a variety of risks, including foreign currency fluctuations and changes in the market value of our investments. In the normal course of business, we employ established policies and procedures to manage our exposure to fluctuations in foreign currency values and changes in the market value of our investments.  

Cash, Cash Equivalents and Short-Term Investments  

At June 30, 2013, we had $324 million in cash, cash equivalents and short-term investments of which $81 million or 25% is held in domestic accounts and $242 million or 75% is held in international accounts. We maintain cash and cash equivalents and short-term investments with various financial institutions located in many countries throughout the world. At June 30, 2013, we had cash and cash equivalents of $170 million of which $133 million or 78% was held in cash in various operating accounts throughout the world and $37 million or 22% was held in money market accounts. The most significant of our operating accounts was our domestic operating account which held approximately $21 million or 13% of our total cash and cash equivalents at a bank that carried A+/A2/AA- ratings. At June 30, 2013, we had short-term investments of $154 million of which $20 million or 13% was held in our investment accounts in the U.S. and $134 million or 87% was held in investment accounts of our foreign subsidiaries. Our short-term investments include $16 million U.S. dollar equivalent of German government sovereign debt and $16 million U.S. dollar equivalent of corporate bonds that are denominated in Euro. Our German government sovereign debt holdings have a maximum maturity of 24 months and carry Aaa/AAA ratings. Our short-term investments do not include sovereign debt from any other countries in Europe.  

We value our available-for-sale short term investments based on pricing from third party pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. We classify all of our fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of our financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. We believe these sources reflect the credit risk associated with each of our available for sale short term investments.

The goal of our investment policy is to manage our investment portfolio to preserve principal and liquidity while maximizing the return on our investment portfolio through the full investment of available funds. We place our cash investments in instruments that meet credit quality standards, as specified in our corporate investment policy guidelines. These guidelines also limit the amount of credit exposure to any one issue, issuer or type of instrument. Our cash equivalents and short-term investments carried ratings from the major credit rating agencies that were in accordance with our corporate investment policy. Our investment policy allows investments in the following: government and federal agency obligations, repurchase agreements (“Repos”), certificates of deposit and time deposits, corporate obligations, medium term notes and deposit notes, commercial paper including asset-backed commercial paper (“ABCP”), puttable bonds, general obligation and revenue bonds, money market funds, taxable commercial paper, corporate notes/bonds, municipal notes, municipal obligations, variable rate demand notes and tax exempt commercial paper. All such instruments must carry minimum ratings of A1/P1/F1, MIG1/VMIG1/SP1 and A2/A/A, as applicable, all of which are considered “investment grade”. Our investment policy for marketable securities requires that all securities mature in three years or less, with a weighted average maturity of no longer than 18 months with at least 10% maturing in 90 days or less.  

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We account for our investments in debt and equity instruments under FASB ASC 320 Investments – Debt and Equity Securities (FASB ASC 320). Our investments are classified as available-for-sale and accordingly are reported at fair value, with unrealized gains and losses reported as other comprehensive income, a component of stockholders’ equity. Unrealized losses are charged against income when a decline in fair value is determined to be other-than-temporary. Investments with maturities beyond one year are classified as short-term based on their highly liquid nature and because such marketable securities represent the investment of cash that is available for current operations. The fair value of our short-term investments at June 30, 2013 and December 31, 2012 was $154 million and $173 million, respectively. This decrease was due to the net sale of $19 million of short-term investments to fund liquidity for operational needs.   

We follow the guidance provided by FASB ASC 320 to assess whether our investments with unrealized loss positions are other than temporarily impaired. Realized gains and losses and declines in value judged to be other-than-temporary are determined based on the specific identification method and are reported in other income (expense), net, in our Consolidated Statements of Income. There were not any other-than-temporary impairments recognized in other expense during the three and six month periods ended June 30, 2013.

Interest Rate Risk

Investments in both fixed rate and floating rate instruments carry a degree of interest rate risk. Fixed rate securities may have their market value adversely impacted due to an increase in interest rates, while floating rate securities may produce less income than expected if interest rates fall. Due to these factors, our future investment income may fall short of expectations due to changes in interest rates or if the decline in the fair value of our publicly traded debt investments is judged to be other-than-temporary. We may suffer losses in principal if we are forced to sell securities that have declined in market value due to changes in interest rates. However, because any debt securities we hold are classified as available-for-sale, no gains or losses are realized in our income statement due to changes in interest rates unless such securities are sold prior to maturity or unless declines in value are determined to be other-than-temporary. These securities are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income (loss), a component of stockholders’ equity, net of tax.

In a declining interest rate environment, as short-term investments mature, reinvestment occurs at less favorable market rates. Given the short-term nature of certain investments, the current interest rate environment of low rates has negatively impacted our investment income.

In order to assess the interest rate risk associated with our investment portfolio, we performed a sensitivity analysis to determine the impact a change in interest rates would have on the value of our investment portfolio assuming a 100 basis point parallel shift in the yield curve. Based on our investment positions as of June 30, 2013, a 100 basis point increase or decrease in interest rates across all maturities would result in a $751,000 increase or decrease in the fair market value of our portfolio. As of December 31, 2012, a similar 100 basis point increase or decrease in interest rates across all maturities would result in a $844,000 increase or decrease in the fair market value of our portfolio. Such losses would only be realized if we sold the investments prior to maturity or if there is an other-than-temporary impairment. Actual future gains and losses associated with our investments may differ from the sensitivity analyses performed as of June 30, 2013, due to the inherent limitations associated with predicting the changes in the timing and level of interest rates and our actual exposures and positions.  

We continue to monitor the stability of the financial markets, particularly those in the European region and have taken steps to limit our direct and indirect exposure to these markets; however, we can give no assurance that we will not be negatively impacted by any adverse outcomes in those markets. We also continue to weigh the benefit of the higher yields associated with longer maturities against the interest rate risk and credit rating risk, also associated with these longer maturities when making these decisions. We cannot predict when or if interest rates and investment yields will rise. If yields continue to stay at these low levels, our investment income will continue to be negatively impacted.  

Exchange Rate Risk  

Our objective in managing our exposure to foreign currency exchange rate fluctuations is to reduce the impact of adverse fluctuations in such exchange rates on our earnings and cash flow. Accordingly, we utilize purchased foreign currency option and forward contracts to hedge our exposure on anticipated transactions and firm commitments. The principal currencies hedged are the Euro, Japanese yen, and Hungarian forint. We monitor our foreign exchange exposures regularly to help ensure the overall effectiveness of our foreign currency hedge positions. There can be no assurance that our foreign currency hedging activities will substantially offset the impact of fluctuations in currency exchanges rates on our results of operations and financial position. Based on the foreign exchange instruments outstanding at June 30, 2013 and December 31, 2012, an adverse change (defined as 20% in the Asian currencies and 10% in all other currencies) in exchange rates would result in a decline in the aggregate settlement value of all of our instruments outstanding of approximately $16 million and $22 million, respectively. However, as we utilize foreign currency instruments for hedging anticipated and firmly committed transactions, we believe that a loss in settlement value for those instruments will be substantially offset by increases in the value of the underlying exposure. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for a further description of our derivative instruments and hedging activities).

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Item 4.Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, our Chief Executive Officer, Dr. James Truchard, and our EVP, Chief Operating Officer and Chief Financial Officer, Alex Davern, based on their evaluation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended), required by paragraph (b) of Rule 13a – 15 or Rule 15d – 15, have concluded that our disclosure controls and procedures were effective at the reasonable assurance level, to ensure the timely collection, evaluation and disclosure of information relating to us that would potentially be subject to disclosure under the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder, and that such information is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. These disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports we file or submit is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Our disclosure controls and procedures include components of our internal control over financial reporting. Our assessment of the effectiveness of our internal control over financial reporting is expressed at the level of reasonable assurance because a control system, no matter how well designed and operated, can provide only reasonable, but not absolute assurance that the control system’s objectives will be met.

Changes in Internal Control Over Financial Reporting

We continue to enhance our internal control over financial reporting in key functional areas with the goal of monitoring our operations at the level of documentation, segregation of duties, and systems security necessary, as well as transactional control procedures required, under Auditing Standard No. 5 issued by the Public Company Accounting Oversight Board. We discuss and disclose these matters to the audit committee of our board of directors and to our auditors.

During the three month period ended June 30, 2013, there were no changes in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of the Rule 13a – 15 or Rule 15d – 15 that have materially affected, or are likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

ITEM 1.LEGAL PROCEEDINGS

We are not currently a party to any material litigation. However, in the ordinary course of our business, we are involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any future litigation or dispute.

ITEM 1A. RISK FACTORS

Uncertain Global Economic Conditions Could Materially Adversely Affect Our Business and Results of Operations.  Our operations and performance are sensitive to fluctuations in general economic conditions, both in the U.S. and globally. Uncertainty about global economic conditions poses a risk as consumers and businesses may postpone spending in response to tighter credit, unemployment, negative financial news, volatile foreign currency markets and declines in income or asset values. For example, the continuing uncertainty surrounding sovereign debt, financial market volatility, and other factors have resulted in reduced consumer and business confidence and spending in many countries. These worldwide and regional economic conditions could have a material adverse effect on demand for our products. Other factors that could adversely influence demand include increases in fuel and other energy costs, unemployment, labor and healthcare costs, access to credit, consumer confidence, and other macroeconomic factors affecting spending behavior.

Historically, our business cycles have generally followed the expansion and contraction cycles in the global industrial economy as measured by the Global Purchasing Managers Index (PMI). The most recent PMI reading for July 2013 was 50.8,  relatively unchanged from a reading of 50.6 for June 2013. For July 2013, the new order element of the PMI was 51.6,relatively unchanged from the reading of 51.5 for June 2013. For the three month period ended June 30, 2013, the new order element of the PMI had an average reading of 51.5. We are unable to predict whether the industrial economy, as measured by the PMI, will remain near the neutral reading of 50, strengthen or contract during the remainder of 2013. If the industrial economy, as measured by the PMI, remains at or near a neutral reading of around 50, indicating general weakness, or begins to contract, it could have an adverse effect on the spending patterns of businesses including our current and potential customers which could adversely affect our revenues and result of operations.

Our Product Revenues are Dependent on Certain Industries.Sales of our products are dependent on customers in certain industries, particularly the telecommunications, semiconductor, consumer electronics, automotive, automated test equipment, defense and aerospace industries. As we have experienced in the past, and as we may continue to experience in the future, downturns characterized by diminished product demand in any one or more of these industries may result in decreased sales, and a material adverse effect on our operating results. For example,personal computer shipments have declined sharply during the first six months of 2013. This persistent and steep decline in personal computer shipments could have an indirect material negative impact on our business as it may negatively impact the spending and investment patterns of many of the customers we serve across industries and regions. This persistent and steep decline in personal computer shipments could also have a direct material negative impact on our business, as many of our products allow our customers to equip industry-standard computers with our system design software and modular hardware.

Orders With a Value of Greater than One Million Dollars Expose Us to Significant Additional Business and Legal Risks that Could Have a Material Adverse Impact on our Business, Results of Operations and Financial Condition. In recent years, we have made a concentrated effort to increase our revenue through the pursuit of orders with a value greater than $1.0 million. During the three and six month periods ended June 30, 2013, we received $13 million and $30 million, respectively, in new orders from our largest customer. In the three and six month periods ended June 30, 2013, we recognized net revenue of $23 million and $27 million, respectively, from these orders. During the three and six month periods ended June 30, 2012, we received $38 million and $49 million, respectively, in new orders from this same customer. In the three and six month periods ended June 30, 2012, we recognized net revenue of $21 million and $25 million, respectively, from these orders. This type of order exposes us to significant additional business and legal risks compared to smaller orders. These very large customers frequently require contract terms that vary substantially from our standard terms of sale. These orders can be accompanied by critical delivery commitments and severe contractual liabilities can be imposed on us if we fail to provide the quantity of product at the required delivery times. These customers may also impose product acceptance requirements and product performance evaluations which create uncertainty with respect to the timing of our ability to recognize revenue from such orders. In addition, these larger orders are more volatile, are subject to greater discount variability and may contract at a faster pace during an economic downturn. These contracts may also have supply constraint requirements which mandate that we allocate large product inventories for a specific contract. These inventory requirements expose us to higher risks of inventory obsolescence and can adversely impact our ability to provide adequate product supply to other customers.

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Fulfillment of these contracts can severely challenge our supply chain capabilities at the component acquisition, assembly and delivery stages. Our contracts with such customers may allow the customer to cancel or delay orders without liability which exposes our business and financial results to significant risk. These contracts can require us to develop specific product mitigation plans for product delivery constraints caused by unexpected or catastrophic situations to help assure quick production recovery. We can attempt to manage this risk but there can be no assurance that we will be successful in our efforts. These customers may demand most favored customer pricing, significant discounts, extended payment terms and volume rebates and such terms can adversely impact our revenues, margins, financial results and may also negatively impact our days sales outstanding as these orders become a larger proportion of our overall revenue. These customers may request broad indemnity obligations and large direct and consequential damage provisions in the event their contracts with us are breached, and these provisions expose us to risk and liabilities far in excess of our standard terms and conditions of sale. While we attempt to limit the number of contracts that contain the non-standard terms of sale described above and attempt to contractually limit our potential liability under such contracts, we have been and expect to be forced to agree to some or all of such provisions to secure these customers and to continue to grow our business. Such actions expose us to significant additional risks which could result in a material adverse impact on our business, results of operations and financial condition.

Revenue Derived from Large Orders Could Adversely Affect our Gross Margin and Could Lead to Greater Variability in our Quarterly Results.We define our large order business as orders with a value greater than $100,000. As a percent of our overall business, orders over $100,000 represented 21% and 27% of our total orders during the three month periods ended June 30, 2013 and 2012, respectively, and 22% in each of the six month periods ended June 30, 2013 and 2012. These orders may be more sensitive to changes in the global industrial economy, may be subject to greater discount variability, lower gross margins, and may contract at a faster pace during an economic downturn. Historically, our gross margins have been stable from period to period. To the extent that the amount of our revenue derived from larger orders increases in future periods, either in absolute dollars or as a percentage of our overall business, our gross margins could decline, could experience greater volatility and see a greater negative impact from future downturns in the global industrial economy. This dynamic may also have an adverse effect on the historical seasonal pattern of our revenues and our results of operations.

For example, during the three and six month periods ended June 30, 2013, we recognized net revenue of $23 million and $27 million, respectively from our largest customer. The majority of this revenue relates to a new application in a highly competitive space. As a result, the gross margin for this revenue is significantly below our historical average. During the three and six month periods ended June 30, 2013, the gross margin related to these revenue had the effect of decreasing our consolidated gross margin by approximately 280 and 150 basis points, respectively.  During the three month period ended March 31, 2013, we increased our inventory primarily to meet anticipated demand from our largest customer. We have determined that demand will be lower than we had originally anticipated and therefore have taken steps to reduce our inventory levels to match our anticipated demand for the remainder of 2013. From March 31, 2013, to June 30, 2013, our inventory balance decreased by $3.3 million from $189 million to $185 million.

Our Current Domestic Cash Position May Not Be Sufficient to Fund our Domestic Cash Needs in the Next Twelve Months and We May Need to Seek Funding from External Sources or Repatriate Foreign Earnings.  At June 30, 2013, we had $324 million in cash, cash equivalents and short-term investments of which $242 million was held in operating and investment accounts of our foreign subsidiaries. On May 9, 2013, we entered into a Loan Agreement (the “Loan Agreement”) with Wells Fargo Bank, National Association (the “Lender”). The Loan Agreement provides for a $50 million unsecured revolving line of credit with a scheduled maturity date of May 9, 2018 (the “Maturity Date”). Proceeds of loans made under the Loan Agreement may be used for working capital and other general corporate purposes. We may choose to borrow funds against this line of credit in future periods in order to have sufficient domestic cash to fund continued dividends to our stockholders, to fund potential acquisitions or other domestic general corporate purposes without the need to repatriate foreign earnings. At June 30, 2013, we did not have any amounts outstanding or due as a result of borrowings under this line of credit.

We may also seek to pursue additional financing or to raise additional funds by selling equity or debt to the public or in private transactions. If we elect to raise additional funds, we may not be able to obtain such funds on a timely basis on acceptable terms, if at all. If we raise additional funds by issuing additional equity or convertible debt securities, the ownership percentages of our existing stockholders would be reduced. In addition, the equity or debt securities that we issue may have rights, preferences or privileges senior to those of our common stock. We may also choose to repatriate foreign earnings which would be subject to the U.S. federal statutory tax rate of 35% and therefore, would likely have a material adverse effect on our effective tax rate and on our net income and earnings per share. We could also choose to reduce certain expenditures or payments of dividends or suspend our program to repurchase shares of our common stock. Historically, we have not had to rely on debt, public or private, to fund our operating, financing or investing activities.

We Have Established a Budget and Variations From Our Budget Will Affect Our Financial Results.We have established an operating budget for 2013. Our budget was established based on the estimated revenue from sales of our products which are based on anticipated economic conditions in the markets in which we do business as well as the timing and volume of our new products and the expected penetration of both new and existing products in the marketplace. In 2012, we increased our overall headcount by 634. During 2013, we will see the full year impact of these headcount additions on our operating expenses. If demand for our products in the remainder of 2013 is less than the demand we anticipated in setting our 2013 budget, our operating results could be negatively impacted.

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In this regard, for the three month period ended June 30, 2013, operating expenses decreased by $3.7 million or 2% from the three month period ended March 31, 2013, as a result of cost cutting measures implemented in response to the weaker than anticipated demand for our products. During the three month period ended June 30, 2013, our operating expenses were $3.9 million below what was anticipated compared to the three month period ended March 31, 2013, when our operating expenses exceeded our anticipated expenses by $3.6 million.Given the broad weakness in the industry, we have identified additional actions to take if we need to further reduce our planned spending for the rest of 2013.

If we exceed the level of expenses established in our 2013 operating budget during future periods or if we cannot reduce expenditures in response to a decrease in revenue, our operating results could be adversely affected. Our spending could continue to exceed our budget due to a number of factors, including:

· increased costs from hiring more product development engineers or other personnel;

· increased costs from hiring more field sales personnel;

· less than expected capacity utilization of our new manufacturing facility in Penang, Malaysia;

· inefficiencies related to start-up operations of our new manufacturing facility in Penang, Malaysia;

· cost overruns related to training a new workforce for our new manufacturing facility in Penang, Malaysia;

·  increased manufacturing costs resulting from component supply shortages or component price fluctuations; 

· additional marketing costs for new product introductions or for conferences and tradeshows; 

· the timing, cost or outcome of any future intellectual property litigation or commercial disputes;  

· increased component costs resulting from vendors increasing their sales price; or 

· additional costs related to acquisitions, if any.  

Our Quarterly Results are Subject to Fluctuations Due to Various Factors that May Adversely Affect Our Business and Result of Operations.  Our quarterly operating results have fluctuated in the past and may fluctuate significantly in the future due to a number of factors, including: 

· changes in the global economy or global credit markets, particularly in the Euro zone; 

· increasing concentration in the amount of revenue derived from very large orders and the pricing, margins, and other terms of such orders; 

· changes in capacity utilization including at our new facility in Malaysia; 

· fluctuations in foreign currency exchange rates; 

· changes in the mix of products sold; 

· the availability and pricing of components from third parties (especially limited sources); 

· the difficulty in maintaining margins, including the higher margins traditionally achieved in international sales; 

· changes in pricing policies by us, our competitors or suppliers; 

· the timing, cost or outcome of any future intellectual property litigation or commercial disputes; 

· delays in product shipments caused by human error or other factors; and, 

· disruptions in transportation channels. 

We Operate in Intensely Competitive Markets.The markets in which we operate are characterized by intense competition from numerous competitors, some of which are divisions of large corporations having far greater resources than we have, and we may face further competition from new market entrants in the future. A key competitor is Agilent Technologies Inc. (“Agilent”). Agilent offers hardware and software products that provide solutions that directly compete with our virtual instrumentation products and Agilent has released its own line of PXI based hardware. Agilent is aggressively advertising and marketing products that are competitive with our products. Because of Agilent’s strong position in the instrumentation business, changes in its marketing strategy or product offerings could have a material adverse effect on our operating results.

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We believe our ability to compete successfully depends on a number of factors both within and outside our control, including: 

· our ability to maintain and grow our business with our very large customers;

· general market and economic conditions, particularly in the Euro zone;

· our ability to meet the volume and service requirements of our very large customers;

· industry consolidation, including acquisitions by our competitors; 

· success in developing new products; 

· timing of our new product introductions; 

· new product introductions by competitors; 

· the ability of competitors to more fully leverage low cost geographies for manufacturing and/or distribution; 

· product pricing; 

· effectiveness of sales and marketing resources and strategies; 

· adequate manufacturing capacity and supply of components and materials; 

· efficiency of manufacturing operations; 

· strategic relationships with our suppliers; 

· product quality and performance; 

· protection of our products by effective use of intellectual property laws; 

· the financial strength of our competitors; 

· the outcome of any future litigation or commercial dispute; 

· barriers to entry imposed by competitors with significant market power in new markets; and, 

· government actions throughout the world. 

There can be no assurance that we will be able to compete successfully in the future.

We are Subject to Various Risks Associated with International Operations and Foreign Economies. Our international sales are subject to inherent risks, including:

· fluctuations in foreign currencies relative to the U.S. dollar;

· difficulties and the high tax costs associated with the repatriation of earnings;

· fluctuations in local economies;

· difficulties in staffing and managing foreign operations;  

· greater difficulty in accounts receivable collection;

· costs and risks of localizing products for foreign countries;

· unexpected changes in regulatory requirements;

· tariffs and other trade barriers; and,

· the burdens of complying with a wide variety of foreign laws.

In many foreign countries, particularly in those with developing economies, it is common to engage in business practices that are prohibited by U.S. regulations applicable to us such as the Foreign Corrupt Practices Act. Although we have policies and procedures designed to ensure compliance with these laws, there can be no assurance that all of our employees, contractors and agents, including those based in or from countries where practices which violate such U.S. laws may be customary, will not take actions in violation of our policies. Any violation of foreign or U.S. laws by our employees, contractors or agents, even if such violation is prohibited by our policies, could have a material adverse effect on our business. We must also comply with various import and export regulations. The application of these various regulations depends on the classification of our products which can change over time as such regulations are modified or interpreted. As a result, even if we are currently in compliance with applicable regulations, there can be no assurance that we will not have to incur additional costs or take additional compliance actions in the future. Failure to comply with these regulations could result in fines or termination of import and export privileges, which could have a material adverse effect on our operating results. Additionally, the regulatory environment in some countries is very restrictive as their governments try to protect their local economy and value of their local currency against the U.S. dollar.

The vast majority of our sales outside of North America are denominated in local currencies, and accordingly, the U.S. dollar equivalent of these sales is affected by changes in the foreign currency exchange rates. The change in exchange rates had the effect decreasing our consolidated sales by $3.4 million in the three month period ended June 30, 2013, and decreasing our consolidated sales by $8 million in the three month period ended June 30, 2012. The change in exchange rates had the effect of decreasing our consolidated sales by $3.5 million in the six month period ended June 30, 2013, and decreasing our consolidated sales by $7.7 million in the six month period ended June 30, 2012. Since most of our international operating expenses are also incurred in local currencies, the change in exchange rates had the effect of decreasing our consolidated operating expenses by $1.6 million in the three month period ended June 30, 2013, and decreasing our consolidated operating expenses by $3.2 million in the three month period ended June 30, 2012.  The change in exchange rates had the effect of decreasing our consolidated operating expenses by $928,000 in the six month period ended June 30, 2013, and decreasing our consolidated operating expenses by $3.6 million in the six month period ended June 30, 2012.

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During the six month period ended June 30, 2013, there was mixed volatility in the exchange rates between the U.S. dollar and most of the major currencies in the markets in which we do business which included significant strengthening of the U.S. dollar against the Japanese yen. We cannot predict to what degree or how long this volatility in the foreign currency exchange markets will continue. In the past, we have noted that significant volatility in foreign currency exchange rates in the markets in which we do business has had a significant impact on the revaluation of our foreign currency denominated firm commitments, on our ability to forecast our U.S. dollar equivalent revenues and expenses and on the effectiveness of our hedging programs. In the past, these dynamics have also adversely affected our revenue growth in international markets and may pose similar challenges in the future. We recognize the local currency as the functional currency in virtually all of our international subsidiaries.

Tax Law Changes in Hungary Could Have a Negative Impact on our Effective Tax Rate, Earnings and Results of Operations.  The profit from our Hungarian operation benefits from the fact that it is subject to an effective income tax rate that is lower than the U.S. federal statutory tax rate of 35%. Our earnings in Hungary are subject to a statutory tax rate of 19%. The difference between this rate and the statutory U.S. rate of 35% resulted in income tax benefits of $1.5 million and $3.1 million for the three month periods ended June 30, 2013 and 2012, respectively, and income tax benefits of $3.2 million and $5.2 million for the six month periods ended June 30, 2013 and 2012, respectively. In addition, effective January 1, 2010, certain qualified research and development expenses became eligible for an enhanced tax deduction. The enhanced tax deduction for research and development expenses resulted in income tax benefits of $2.3 million and $4.6 million for the three month periods ended June 30, 2013 and 2012, respectively, and income tax benefits of $4.7 million and $7.7 million for the six month periods ended June 30, 2013 and 2012, respectively. This tax benefit may not be available in future years due to changes in political conditions in Hungary or changes in tax laws in Hungary and in the U.S. The reduction or elimination of these benefits in Hungary or future changes in U.S. law pertaining to the taxation of foreign earnings could result in an increase in our future effective income tax rate which could have a material adverse effect on our operating results. No countries other than Hungary had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the Internal Revenue Service with regard to any foreign jurisdictions.   

Our Income Tax Rate could be Affected by the Expiration of a Tax Holiday in Malaysia. Potential future profits from our new manufacturing facility in Penang, Malaysia are free of tax under a tax holiday effective January 1, 2013. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. The expiration of the tax holiday in Malaysia or future changes in U.S. law pertaining to the taxation of foreign earnings could have a material adverse effect on our operating results.

Our Success Depends on New Product Introductions and Market Acceptance of Our Products.The market for our products is characterized by rapid technological change, evolving industry standards, changes in customer needs and frequent new product introductions, and is therefore highly dependent upon timely product innovation. Our success is dependent on our ability to successfully develop and introduce new and enhanced products on a timely basis to replace declining revenues from older products, and on increasing penetration in domestic and international markets. As has occurred in the past and as may be expected to occur in the future, we have experienced significant delays between the announcement and the commercial availability of new products. Any significant delay in releasing new products could have a material adverse effect on the ultimate success of a product and other related products and could impede continued sales of predecessor products, any of which could have a material adverse effect on our operating results. There can be no assurance that we will be able to introduce new products in accordance with announced release dates, that our new products will achieve market acceptance or that any such acceptance will be sustained for any significant period. Failure of our new products to achieve or sustain market acceptance could have a material adverse effect on our operating results. Moreover, there can be no assurance that our international sales will continue at existing levels or grow in accordance with our efforts to increase foreign market penetration.

The Recent Completion of our Third Manufacturing Facility in Penang, Malaysia Could Adversely Affect our Gross Margin, Results of Operations and Earnings if Anticipated Demand is Not Achieved. Construction of our manufacturing and warehousing facility in Penang, Malaysia was completed in the fourth quarter of 2012. We believe this new facility will support our long term manufacturing and warehousing capacity needs. We are currently in the process of ramping up production at our manufacturing site in Penang, Malaysia. By the end of 2013, we expect this site will produce around 15% to 20% of our total production, focused primarily on making existing products which will be transferred from our Hungarian production facility to support anticipated growth in our business. However, if demand for our products does not grow as expected or if it contracts in future periods, we will have excess warehousing and manufacturing capacity which will cause an increase in overhead that will likely negatively impact our gross margins and results of operations in future periods. In addition, we could experience other cost overruns with respect to our Malaysian facility including those associated with;

· inefficiencies related to start-up operations of this facility;

· cost overruns related to training a new workforce for this facility; or

· inefficient inventory management.

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Our Revenues are Subject to Seasonal Variations.In previous years, our revenues have been characterized by seasonality, with revenues typically growing from the first quarter to the second quarter, being relatively constant from the second quarter to the third quarter, growing in the fourth quarter compared to the third quarter and declining in the first quarter of the following year from the fourth quarter of the preceding year. This historical trend has been affected and may continue to be affected in the future by broad fluctuations in the global industrial economy as well as the timing of new product introductions or any acquisitions. In addition, the increasing percentage of our revenue derived from very large orders could have a significant impact on our historical seasonal trends as these orders may be more sensitive to changes in the global industrial economy, may be subject to greater discount variability, lower gross margins, and may contract at a faster pace during an economic downturn. Our historical seasonal variation could also be significantly impacted if we cannot maintain or grow our business with our very large customers. The continuing economic contraction in the Euro zone could persist or worsen in the remainder of 2013. If this instability in the Euro zone continues, worsens or negatively affects other economic regions in 2013, it may have a material adverse effect on the seasonal patterns described above as well as on our overall results of operations and profitability. Our total operating expenses have in the past tended to increase in each successive quarter and have fluctuated as a percentage of revenue based on the seasonality of our revenue.

Concentrations of Credit Risk and Uncertain Conditions in the Global Financial Markets May Adversely Affect Our Business and Result of Operations.By virtue of our holdings of cash, investment securities and foreign currency derivatives, we have exposure to many different counterparties, and routinely execute transactions with counterparties in the financial services industry, including commercial banks and investment banks. Many of these transactions expose us to credit risk in the event of a default of our counterparties. We continue to monitor the stability of the financial markets, particularly those in the European region and have taken steps to limit our direct and indirect exposure to these markets; however, we can give no assurance that we will not be negatively impacted by any adverse outcomes in those markets. There can be no assurance that any losses or impairments to the carrying value of our financial assets as a result of defaults by our counterparties, would not materially and adversely affect our business, financial position and results of operations.

Our Business is Dependent on Key Suppliers and Distributors and Disruptions in these Businesses Could Adversely Affect our Business and Results of Operations.Our manufacturing processes use large volumes of high-quality components and subassemblies supplied by outside sources. Several of these components are only available through limited sources. Limited source components purchased include custom application specific integrated circuits (“ASICs”), chassis and other components. We have in the past experienced delays and quality problems in connection with limited source components, and there can be no assurance that these problems will not recur in the future. Accordingly, our failure to receive components from limited suppliers could result in a material adverse effect on our revenues and operating results. In the event that any of our limited source suppliers experience significant financial or operational difficulties due to adverse global economic conditions or otherwise, our business and operating results would likely be adversely impacted until we are able to secure another source for the required materials.

In some countries, we use distributors to support our sales channels. In the event that any of our distributors experience significant financial or operational difficulties due to adverse global economic conditions or if we experience disruptions in the use of these distributors, our business and operating results would likely be adversely impacted until we are able to secure another distributor or establish direct sales capabilities in the affected market.

A Substantial Majority of our Manufacturing, Warehousing and Distribution Capacity is Located Outside of the United States. Our Hungarian manufacturing and warehouse facility sourced a substantial majority of our sales in 2012. In 2013, we have transitioned some of this capacity to our newly completed manufacturing, warehouse and distribution facility in Penang, Malaysia.

In order to enable timely shipment of products to our customers we also maintain the vast majority of our inventory at these international locations. In addition to being subject to the risks of maintaining such a concentration of manufacturing capacity and global inventory, these facilities and their operations are also subject to risks associated with doing business internationally, including:

· a changing and potentially unstable political environment; 

· significant and frequent changes in the corporate tax law; 

· the volatility of the Hungarian forint and the Malaysian ringgit relative to the U.S. dollar; 

· difficulty in managing manufacturing operations in foreign countries;

· challenges in expanding capacity to meet increased demand; 

· difficulty in achieving or maintaining product quality; 

· interruption to transportation flows for delivery of components to us and finished goods to our customers; 

· a restrictive labor code; and, 

· increasing labor costs. 

No assurance can be given that our efforts to mitigate these risks will be successful. Any failure to effectively deal with the risks above could result in an interruption in the operations of our facilities in Hungary or Malaysia which could have a material adverse effect on our operating results.

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Our centralization of inventory and distribution from a limited number of shipping points is subject to inherent risks, including:

· burdens of complying with additional and/or more complex VAT and customs regulations; and, 

· concentration of inventory increasing the risks associated with fire, natural disasters and logistics disruptions to customer order fulfillment. 

Any difficulties with the centralization of our distribution or delays in the implementation of the systems or processes to support this centralized distribution could result in an interruption of our normal operations, including our ability to process orders and ship products to our customers. Any failure or delay in distribution from our facilities in Hungary and Malaysia could have a material adverse effect on our operating results.

We May Experience Component Shortages that May Adversely Affect Our Business and Result of Operations.As has occurred in the past and as may be expected to occur in the future, supply shortages of components used in our products, including limited source components, can result in significant additional costs and inefficiencies in manufacturing. If we are unsuccessful in resolving any such component shortages in a timely manner, we will experience a significant impact on the timing of revenue, a possible loss of revenue, and/or an increase in manufacturing costs, any of which would have a material adverse impact on our operating results.

We Rely on Management Information Systems and Interruptions in our Information Technology Systems Could Adversely Affect our Business.We rely on the efficient and uninterrupted operation of complex information technology systems and networks to operate our business. We rely on a primary global center for our management information systems and on multiple systems in branches not covered by our global center. As with any information system, unforeseen issues may arise that could affect our ability to receive adequate, accurate and timely financial information, which in turn could inhibit effective and timely decisions. Furthermore, it is possible that our global center for information systems or our branch operations could experience a complete or partial shutdown. A significant system or network disruption could be the result of new system implementations, computer viruses, security breaches, facility issues or energy blackouts. If such a shutdown or disruption occurred, it would adversely impact our product shipments and revenues, as order processing and product distribution are heavily dependent on our management information systems. Such an interruption could also result in a loss of our intellectual property or the release of sensitive competitive information or partner, customer or employee personal data. Any loss of such information could harm our competitive position, result in a loss of customer confidence, and cause us to incur significant costs to remedy the damages caused by the disruptions or security breaches. Accordingly, our operating results in such periods would be adversely impacted.

We are continually working to maintain reliable systems to control costs and improve our ability to deliver our products in our markets worldwide. Our efforts include, but are not limited to following: firewalls, antivirus protection, patches, log monitors, routine backups with offsite retention of storage media, system audits, data partitioning and routine password modifications. No assurance can be given that our efforts will be successful.

We are Subject to Risks Associated with Our Website.We devote significant resources to maintain our Website, ni.com, as a key marketing, sales and support tool and expect to continue to do so in the future. However, there can be no assurance that we will be successful in our attempt to leverage the Web to increase sales. Failure to properly maintain our website may interrupt normal operations, including our ability to provide quotes, process orders, ship products, provide services and support to our customers, bill and track our customers, fulfill contractual obligations and otherwise run our business which would have a material adverse effect on our results of operations. We host our Website internally. Any failure to successfully maintain our Website or any significant downtime or outages affecting our Website could have a material adverse impact on our operating results.

Adoption of Complex Health Care Legislation and Related Regulations and Financial Reform Could Increase our Operating Costs and Adversely Affect Our Result of Operations.The adoption of the Patient Protection and Affordable Care Act and the related reconciliation measure, the Health Care and Education Reconciliation Act of 2010, and the regulations resulting from such legislation could increase the costs of providing health care to our employees as well as cause us to incur additional administrative costs to comply with certain provisions of this legislation. We are unable to predict the amount and timing of any such increased costs or to what extent we may need to divert other resources to comply with various provisions of this legislation. Additionally, the Dodd-Frank Wall Street Reform and Consumer Protection Act could result in increased costs to us either as a result of our efforts to comply with the corporate governance provisions which may be applicable to us or due to the impact of such legislation on the derivative contracts or other financial instruments or financial markets that we utilize in the normal course of our business.

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Our Acquisitions are Subject to a Number of Related Costs and Challenges that Could Have a Material Adverse Effect on Our Business and Results of Operations.During the fourth quarter of 2012, we completed three acquisitions including Signalion. We may in the future acquire additional complementary businesses, products or technologies. Achieving the anticipated benefits of an acquisition depends upon whether the integration of the acquired business, products or technology is accomplished efficiently and effectively. In addition, successful acquisitions generally require, among other things, integration of product offerings, manufacturing operations and coordination of sales and marketing and R&D efforts. These difficulties can become more challenging due to the need to coordinate geographically separated organizations, the complexities of the technologies being integrated, and the necessities of integrating personnel with disparate business backgrounds and combining different corporate cultures. The integration of operations following an acquisition also requires the dedication of management resources, which may distract attention from our day-to-day business and may disrupt key R&D, marketing or sales efforts. Our inability to successfully integrate Signalion or any other acquisition could harm our business. The existing products previously sold by entities we have acquired may be of a lesser quality than our products and/or could contain errors that produce incorrect results on which users rely or cause failure or interruption of systems or processes that could subject us to liability claims that could have a material adverse effect on our operating results or financial position. Furthermore, products acquired in connection with acquisitions may not gain acceptance in our markets, and we may not achieve the anticipated or desired benefits of such transactions.

Our Products are Complex and May Contain Bugs or Errors.  As has occurred in the past and as may be expected to occur in the future, our new software products or new operating systems of third parties on which our products are based often contain bugs or errors that can result in reduced sales or cause our support costs to increase, either of which could have a material adverse impact on our operating results.

Our Business Depends on Our Proprietary Rights and We Have Been Subject to Intellectual Property Litigation. Our success depends on our ability to obtain and maintain patents and other proprietary rights relative to the technologies used in our principal products. Despite our efforts to protect our proprietary rights, unauthorized parties may have in the past infringed or violated certain of our intellectual property rights. We from time to time engage in litigation to protect our intellectual property rights. In monitoring and policing our intellectual property rights, we have been and may be required to spend significant resources. We from time to time may be notified that we are infringing certain patent or intellectual property rights of others. There can be no assurance that any future intellectual property dispute or litigation will not result in significant expense, liability, injunction against the sale of some of our products, and a diversion of management’s attention, any of which may have a material adverse effect on our operating results.

Our Reported Financial Results May be Adversely Affected by Changes in Accounting Principles Generally Accepted in the United States.We prepare our financial statements in conformity with accounting principles generally accepted in the U.S. These accounting principles are subject to interpretation by the Financial Accounting Standards Board and the Securities and Exchange Commission. A change in these policies or interpretations could have a significant effect on our reported financial results, and could affect the reporting of transactions completed before the announcement of a change.

Our Business Depends on the Continued Service of Key Management and Technical Personnel.  Our success depends upon the continued contributions of our key management, sales, marketing, research and development and operational personnel, including Dr. Truchard, our Chairman and Chief Executive Officer, and other members of our senior management and key technical personnel. We have no agreements providing for the employment of any of our key employees for any fixed term and our key employees may voluntarily terminate their employment with us at any time. The loss of the services of one or more of our key employees in the future could have a material adverse effect on our operating results. We also believe our future success will depend upon our ability to attract and retain additional highly skilled management, technical, marketing, research and development, and operational personnel with experience in managing large and rapidly changing companies, as well as training, motivating and supervising employees. Failure to attract and retain a sufficient number of our key personnel could have a material adverse effect on our operating results.

Our Manufacturing Operations are Subject to a Variety of Environmental Regulations and Costs that May Have a Material Adverse Effect on our Business and Results of our Operations.We must comply with many different governmental regulations related to the use, storage, discharge and disposal of toxic, volatile or otherwise hazardous chemicals used in our manufacturing operations in the U.S., Hungary, and Malaysia. Although we believe that our activities conform to presently applicable environmental regulations, our failure to comply with present or future regulations could result in the imposition of fines, suspension of production or a cessation of operations. Any such environmental regulations could require us to acquire costly equipment or to incur other significant expenses to comply with such regulations. Any failure by us to control the use of or adequately restrict the discharge of hazardous substances could subject us to future liabilities.

43

We Are Subject to the Risk of Product Liability Claims.Our products are designed to provide information upon which users may rely. Our products are also used in “real time” applications requiring extremely rapid and continuous processing and constant feedback. Such applications give rise to the risk that a failure or interruption of the system or application could result in economic damage or bodily harm. We attempt to assure the quality and accuracy of the processes contained in our products, and to limit our product liability exposure through contractual limitations on liability, limited warranties, express disclaimers and warnings as well as disclaimers contained in our “shrink wrap” license agreements with end-users. If our products contain errors that produce incorrect results on which users rely or cause failure or interruption of systems or processes, customer acceptance of our products could be adversely affected. Further, we could be subject to liability claims that could have a material adverse effect on our operating results or financial position. Although we maintain liability insurance for product liability matters, there can be no assurance that such insurance or the contractual limitations used by us to limit our liability will be sufficient to cover or limit any claims which may occur.

Provisions in Our Charter Documents and Delaware Law and Our Stockholder Rights Plan May Delay or Prevent an Acquisition of Us. Our certificate of incorporation and bylaws and Delaware law contain provisions that could make it more difficult for a third party to acquire us without the consent of our Board of Directors. These provisions include a classified Board of Directors, prohibition of stockholder action by written consent, prohibition of stockholders to call special meetings and the requirement that the holders of at least 80% of our shares approve any business combination not otherwise approved by two-thirds of the Board of Directors. Delaware law also imposes some restrictions on mergers and other business combinations between us and any holder of 15% or more of our outstanding common stock. In addition, our Board of Directors has the right to issue preferred stock without stockholder approval, which could be used to dilute the stock ownership of a potential hostile acquirer. Our Board of Directors adopted a stockholders rights plan on January 21, 2004, pursuant to which we declared a dividend of one right for each share of our common stock outstanding as of May 10, 2004. This rights plan replaced a similar rights plan that had been in effect since our initial public offering in 1995. Unless redeemed by us prior to the time the rights are exercised, upon the occurrence of certain events, the rights will entitle the holders to receive upon exercise thereof shares of our preferred stock, or shares of an acquiring entity, having a value equal to twice the then-current exercise price of the right. The issuance of the rights could have the effect of delaying or preventing a change of control of us.

Compliance With Sections 302 and 404 of the Sarbanes-Oxley Act of 2002 is Costly and Challenging.  As required by Section 302 of the Sarbanes-Oxley Act of 2002, this Form 10-Q contains our management’s certification of adequate disclosure controls and procedures as of June 30, 2013. Our most recent annual report on Form 10-K also contains a report by our management on our internal control over financial reporting including an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2012. Our most recent annual report on Form 10-K also contains an attestation and report by our external auditors with respect to the effectiveness of our internal control over financial reporting under Section 404. While these assessments and reports did not reveal any material weaknesses in our internal control over financial reporting, compliance with Sections 302 and 404 is required for each future fiscal year end. We expect that the ongoing compliance with Sections 302 and 404 will continue to be both very costly and very challenging and there can be no assurance that material weaknesses will not be identified in future periods. Any adverse results from such ongoing compliance efforts could result in a loss of investor confidence in our financial reports and have an adverse effect on our stock price.

ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table provides information as of June 30, 2013 with respect to the shares of common stock that we repurchased during the second quarter of 2013. 

Period	Total number of shares purchased	Average price paid per share	Total number of shares purchased as part of publicly announced plans or programs	Maximum number of shares that may yet be purchased under the plans or programs (1)
April 1, 2013 to April 30, 2013	-	-	-	3,932,245
May 1, 2013 to May 31, 2013	-	-	-	3,932,245
June 1, 2013 to June 30, 2013	-	-	-	3,932,245
Total	-	-	-

(1) For the past several years, we have maintained various stock repurchase programs. At June 30, 2013, there were 3,932,245 shares available for repurchase under the plan approved on April 21, 2010. This repurchase plan does not have an expiration date.  

ITEM 5.OTHER INFORMATION

From time to time our directors, executive officers and other insiders may adopt stock trading plans pursuant to Rule 10b5-1(c) promulgated by the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended. Jeffrey L. Kodosky and James J. Truchard have made periodic sales of our stock pursuant to such plans.

44

ITEM 6	EXHIBITS
3.1	Certificate of Incorporation, as amended, of the Company.
3.2(1)	Amended and Restated Bylaws of the Company.
3.3(2)	Certificate of Designation of Rights, Preferences and Privileges of Series A Participating Preferred Stock of the Company.
4.1(3)	Specimen of Common Stock certificate of the Company.
4.2(4)	Rights Agreement dated as of January 21, 2004, between the Company and EquiServe Trust Company, N.A.
10.1(3)	Form of Indemnification Agreement.
10.2(5)	1994 Incentive Plan, as amended.*
10.3(6)	1994 Employee Stock Purchase Plan, as amended.*
10.5(7)	National Instruments Corporation Annual Incentive Program, as amended.*
10.6(8)	2005 Incentive Plan.*
10.7(9)	2005 Form of Restricted Stock Unit Award Agreement (Non-Employee Director).*
10.8(10)	2005 Form of Restricted Stock Unit Award Agreement (Performance Vesting).*
10.9(11)	2005 Form of Restricted Stock Unit Award Agreement (Current Employee).*
10.10(12)	2005 Form of Restricted Stock Unit Award Agreement (Newly Hired Employee).*
10.11(13)	2010 Incentive Plan.*
10.12(14)	2010 Form of Restricted Stock Unit Award Agreement (Non-Employee Director).*
10.13(15)	2010 Form of Restricted Stock Unit Award Agreement (Performance Vesting).*
10.14(16)	2010 Form of Restricted Stock Unit Award Agreement (Current Employee).*
10.15(17)	2010 Form of Restricted Stock Unit Award Agreement (Newly Hired Employee).*
10.16(18)	Loan Agreement, dated as of May 9, 2013, by and among National Instruments Corporation, the guarantors from time to time party thereto and Wells Fargo Bank, National Association, as lender.
31.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document **
101.SCH	XBRL Taxonomy Extension Schema Document **
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document **
101.LAB	XBRL Taxonomy Extension Label Linkbase Document **
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document **
(1)	Incorporated by reference to the same-numbered exhibit filed with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2007.
(2)	Incorporated by reference to the same-numbered exhibit filed with the Company’s Registration Statement on Form 8-A on April 27, 2004.
(3)	Incorporated by reference to the Company’s Registration Statement on Form S-1 (Reg. No. 33-88386) declared effective March 13, 1995.
(4)	Incorporated by reference to exhibit 4.1 filed with the Company’s Current Report on Form 8-K filed on January 28, 2004.
(5)	Incorporated by reference to the same-numbered exhibit filed with the Company’s Form 10-Q on August 5, 2004.
(6)	Incorporated by reference to exhibit 10.1 filed with the Company’s Current Report on Form 8-K filed on May 16, 2011.
(7)	Incorporated by reference to exhibit 99.1 filed with the Company’s Current Report on Form 8-K filed on February 24, 2012.
(8)	Incorporated by reference to exhibit A of the Company’s Proxy Statement dated and filed on April 4, 2005.
(9)	Incorporated by reference to exhibit 10.8 filed with the Company’s Form 10-Q on August 2, 2006.
(10)	Incorporated by reference to exhibit 10.9 filed with the Company’s Form 10-Q on August 2, 2006.
(11)	Incorporated by reference to exhibit 10.10 filed with the Company’s Form 10-Q on August 2, 2006.
(12)	Incorporated by reference to exhibit 10.11 filed with the Company’s Form 10-Q on August 2, 2006.
(13)	Incorporated by reference to exhibit 10.1 filed with the Company’s Current Report on Form 8-K filed on May 17, 2010.
(14)	Incorporated by reference to exhibit 10.2 filed with the Company’s Current Report on Form 8-K filed on June 24, 2010.
(15)	Incorporated by reference to exhibit 10.3 filed with the Company’s Current Report on Form 8-K filed on June 24, 2010.
(16)	Incorporated by reference to exhibit 10.4 filed with the Company’s Current Report on Form 8-K filed on June 24, 2010.
(17)	Incorporated by reference to exhibit 10.5 filed with the Company’s Current Report on Form 8-K filed on June 24, 2010.
(18)	Incorporated by reference to exhibit 10.1 filed with the Company’s Current Report on Form 8-K filed on May 13, 2013.
*	Management Contract or Compensatory Plan or Arrangement
**	In accordance with Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933 or Section 18 of the Securities Exchange Act of 1934 and otherwise are not subject to liability.

45

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated:  August 1, 2013

NATIONAL INSTRUMENTS CORPORATION

By:  /s/ Alex M. Davern                                         

Alex M. Davern

EVP, Chief Operating Officer,

Chief Financial Officer and Treasurer

(Principal Financial and Accounting Officer)

46

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, James J. Truchard, certify that:

1.	I have reviewed this report on Form 10-Q of National Instruments Corporation;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

DateAugust 1, 2013

By: /s/ James J. Truchard 

James J. Truchard

Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Alex M. Davern, certify that:

1.	I have reviewed this report on Form 10-Q of National Instruments Corporation;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  August 1, 2013

By: /s/ Alex M. Davern 

Alex M. Davern

Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, James J. Truchard, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of National Instruments Corporation on Form 10-Q for the fiscal quarter ended June 30, 2013 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents in all material respects the financial condition and results of operations of National Instruments Corporation.

By: /s/ James J. Truchard 

James J. Truchard

Chief Executive Officer

I, Alex M. Davern, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of National Instruments Corporation on Form 10-Q for the fiscal quarter ended June 30, 2013 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents in all material respects the financial condition and results of operations of National Instruments Corporation.

By: /s/ Alex M. Davern 

Alex M. Davern

Chief Financial Officer

XML

Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2013

Stock-Based Compensation Plans [Abstract]

Stock-Based Compensation Plans

Note 11 – Stock-based compensation plans  

Stock option plans  

Our stockholders approved the 1994 Incentive Stock Option Plan (the “1994 Plan”) in May 1994. At the time of approval, 13,668,750 shares of our common stock were reserved for issuance under this plan. In 1997, an additional 10,631,250 shares of our common stock were reserved for issuance under this plan, and an additional 1,125,000 shares were reserved for issuance under this plan in 2004. The 1994 Plan terminated in May 2005, except with respect to outstanding awards previously granted thereunder.  

Awards under the plan were either incentive stock options within the meaning of Section 422 of the Internal Revenue Code or nonqualified options. The right to purchase shares under the options vests over a five to ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and revenue growth but shares cannot accelerate to vest over a period of less than five years. Stock options must be exercised within ten years from date of grant. Stock options were issued with an exercise price which was equal to the market price of our common stock at the grant date. We estimate potential forfeitures of stock grants and adjust compensation cost recorded accordingly. The estimate of forfeitures will be adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures will be recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock compensation expense to be recognized in future periods. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates related to the 1994 Plan.  

Restricted stock plan  

Our stockholders approved our 2005 Incentive Plan (the “2005 Plan”) in May 2005. At the time of approval, 4,050,000 shares of our common stock were reserved for issuance under this plan, as well as the number of shares which had been reserved but not issued under the 1994 Plan (our incentive stock option plan which terminated in May 2005), and any shares that returned to the 1994 Plan as a result of termination of options or repurchase of shares issued under such plan. The 2005 Plan, administered by the Compensation Committee of the Board of Directors, provided for granting of incentive awards in the form of restricted stock and RSUs to directors, executive officers and employees of the Company and its subsidiaries. Awards vest over a three,  five or ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and growth but ten year awards cannot accelerate to vest over a period of less than five years. The 2005 Plan terminated on May 11, 2010, except with respect to outstanding awards previously granted thereunder. There were 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010.  

Our stockholders approved our 2010 Incentive Plan (the “2010 Plan”) on May 11, 2010. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under this plan, as well as the 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010, and any shares that are returned to the 1994 Plan and the 2005 Plan as a result of forfeiture or termination of options or RSUs or repurchase of shares issued under these plans. The 2010 Plan, administered by the Compensation Committee of the Board of Directors, provides for granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards vest over a three,  five or ten-year period, beginning on the date of grant. Vesting of ten year awards may accelerate based on the Company’s previous year’s earnings and growth but ten year awards cannot accelerate to vest over a period of less than five years. There were 3,228,639 shares available for grant under the 2010 Plan at June 30, 2013.  

We estimate potential forfeitures of RSUs and adjust compensation cost recorded accordingly. The estimate of forfeitures will be adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures will be recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock compensation expense to be recognized in future periods. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates related to the 2010 Plan.  

Employee stock purchase plan  

Our employee stock purchase plan permits substantially all domestic employees and employees of designated subsidiaries to acquire our common stock at a purchase price of 85% of the lower of the market price at the beginning or the end of the purchase period. The plan has quarterly purchase periods generally beginning on February 1, May 1, August 1 and November 1 of each year. Employees may designate up to 15% of their compensation for the purchase of common stock under this plan. On May 10, 2011, our stockholders approved an additional 3,000,000 shares for issuance under our employee stock purchase plan, and at June 30, 2013, we had 1,957,532 shares of common stock reserved for future issuance under this plan. We issued 629,495 shares under this plan in the six month period ended June 30, 2013. The weighted average purchase price of the employees’ purchase rights was $21.50 per share. During the six month period ended June 30, 2013, we did not make any changes in accounting principles or methods of estimates with respect to such plan.  

Authorized Preferred Stock and Preferred Stock Purchase Rights Plan  

We have 5,000,000 authorized shares of preferred stock. On January 21, 2004, our Board of Directors designated 750,000 of these shares as Series A Participating Preferred Stock in conjunction with its adoption of a Preferred Stock Rights Agreement (the “Rights Agreement”) and declaration of a dividend of one preferred share purchase right (a “Right”) for each share of common stock outstanding held as of May 10, 2004 or issued thereafter. Each Right will entitle its holder to purchase one one-thousandth of a share of National Instruments’ Series A Participating Preferred Stock at an exercise price of $200, subject to adjustment, under certain circumstances. The Rights Agreement was not adopted in response to any effort to acquire control of National Instruments.  

The Rights only become exercisable in certain limited circumstances following the tenth day after a person or group announces acquisitions of or tender offers for 20% or more of our common stock. In addition, if an acquirer (subject to certain exclusions for certain current stockholders of National Instruments, an “Acquiring Person”) obtains 20% or more of our common stock, then each Right (other than the Rights owned by an Acquiring Person or its affiliates) will entitle the holder to purchase, for the exercise price, shares of our common stock having a value equal to two times the exercise price. Under certain circumstances, our Board of Directors may redeem the Rights, in whole, but not in part, at a purchase price of $0.01 per Right. The Rights have no voting privileges and are attached to and automatically traded with our common stock until the occurrence of specified trigger events. The Rights will expire on the earlier of May 10, 2014 or the exchange or redemption of the Rights.  

There were not any shares of preferred stock issued and outstanding at June 30, 2013.

XML

Debt (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Unsecured revolving line of credit	$ 50
Available for borrowings under revolving line of credit	$ 50
Ratio of consolidated indebtedness to earnings before interest, taxes, depreciation and amortization, maximum allowed	3.25
Ratio of consolidated earnings before interest, taxes, depreciation and amortization expense, minimum allowed	3.00
Minimum [Member]
Quarterly commitment fee	0.175%
Maximum [Member]
Quarterly commitment fee	0.30%
Base Rate Determined In Accordance With Loan Agreement [Member] | Minimum [Member]
Variable interest rate spread	0.00%
Base Rate Determined In Accordance With Loan Agreement [Member] | Maximum [Member]
Variable interest rate spread	0.50%
LIBOR [Member] | Minimum [Member]
Variable interest rate spread	1.125%
LIBOR [Member] | Maximum [Member]
Variable interest rate spread	2.00%
During Event Of Default [Member]
Variable interest rate spread	2.00%

XML

Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net sales:
Product	$ 275,663	$ 268,979	$ 541,081	$ 508,314
Software maintenance	20,463	21,931	41,533	43,729
GSA accrual		1,349		1,349
Total net sales	296,126	292,259	582,614	553,392
Cost of sales:
Product	82,787	69,787	151,413	129,578
Software maintenance	1,028	1,064	2,642	2,621
Total cost of sales	83,815	70,851	154,055	132,199
Gross profit	212,311	221,408	428,559	421,193
Operating expenses:
Sales and marketing	112,561	110,756	226,631	210,808
Research and development	58,473	54,286	119,729	108,301
General and administrative	22,156	21,502	45,000	42,876
Acquisition related adjustment			(1,316)
Total operating expenses	193,190	186,544	390,044	361,985
Operating income	19,121	34,864	38,515	59,208
Other income:
Interest income	177	132	362	362
Net foreign exchange loss	(1,051)	(1,016)	(2,513)	(1,904)
Other income, net	400	151	424	255
Income before income taxes	18,647	34,131	36,788	57,921
(Benefit from) provision for income taxes	4,226	7,690	3,767	12,838
Net income	$ 14,421	$ 26,441	$ 33,021	$ 45,083
Basic earnings per share	$ 0.12	$ 0.22	$ 0.27	$ 0.37
Weighted average shares outstanding - basic	124,377	121,801	123,845	121,360
Diluted earnings per share	$ 0.12	$ 0.22	$ 0.26	$ 0.37
Weighted average shares outstanding - diluted	125,270	122,759	124,824	122,376
Dividends declared per share	$ 0.14	$ 0.14	$ 0.28	$ 0.28

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Fair Value Measurements

6 Months Ended

Jun. 30, 2013

Fair Value Measurements [Abstract]

Fair Value Measurements

Note 4 – Fair value measurements 

We define fair value to be the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, we consider the principal or most advantageous market that market participants may use when pricing the asset or liability.   

We follow a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value measurement is determined based on the lowest level input that is significant to the fair value measurement. The three values of the fair value hierarchy are the following:   

Level 1 – Quoted prices in active markets for identical assets or liabilities   

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly   

Level 3 – Inputs that are not based on observable market data   

Assets and liabilities measured at fair value on a recurring basis are summarized below:

		Fair Value Measurements at Reporting Date Using
(In thousands)		(Unaudited)
Description		June 30, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	36,682	$	36,682	$		$	-
U.S. treasuries and agencies		-				-		-
Short-term investments available for sale:
Municipal bonds		1,435				1,435		-
Corporate bonds		15,756				15,756		-
U.S. treasuries and agencies		117,651				117,651		-
Foreign government bonds		16,216				16,216		-
Time deposits		2,912		2,912				-
Derivatives		8,007				8,007		-
Total Assets	$	198,659	$	39,594	$	159,065	$	-
Liabilities
Derivatives	$	(1,538)	$	-	$	(1,538)	$	-
Total Liabilities	$	(1,538)	$	-	$	(1,538)	$	-
(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	20,656	$	20,656	$	-	$	-
U.S. Treasuries and Agencies		-		-		-		-
Short-term investments available for sale:
Municipal bonds		1,466		-		1,466		-
Corporate bonds		7,778		-		7,778		-
U.S. treasuries and agencies		135,925		-		135,925		-
Foreign government bonds		25,085		-		25,085		-
Time deposits		2,912		2,912		-		-
Derivatives		4,246		-		4,246		-
Total Assets	$	198,068	$	23,568	$	174,500	$	-
Liabilities
Derivatives	$	(2,804)	$	-	$	(2,804)	$	-
Total Liabilities	$	(2,804)	$	-	$	(2,804)	$	-

We value our available-for-sale short-term investments based on pricing from third party pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. We classify all of our fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of our financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. We believe all of these sources reflect the credit risk associated with each of our available-for-sale short-term investments. Short-term investments available-for-sale consists of debt securities issued by states of the U.S. and political subdivisions of the U.S., corporate debt securities and debt securities issued by U.S. government corporations and agencies as well as debt securities issued by foreign governments. All short-term investments available-for-sale have contractual maturities of less than 24 months.  

Derivatives include foreign currency forward and option contracts. Our foreign currency forward contracts are valued using an income approach (Level 2) based on the spot rate less the contract rate multiplied by the notional amount. Our foreign currency option contracts are valued using a market approach based on the quoted market prices which are derived from observable inputs including current and future spot rates, interest rate spreads as well as quoted market prices of similar instruments. We consider counterparty credit risk in the valuation of our derivatives. However, counterparty credit risk did not impact the valuation of our derivatives during the six month period ended June 30, 2013. There were not any transfers in or out of Level 1 or Level 2 during the six month period ended June 30, 2013.  

Our foreign government bonds consist of German government sovereign debt denominated in Euro with maximum maturities of 24 months. Our short-term investments do not involve sovereign debt from any other country in Europe.  

We did not have any items that were measured at fair value on a nonrecurring basis at June 30, 2013 and December 31, 2012.  

The carrying value of net accounts receivable and accounts payable contained in the Consolidated Balance Sheets approximates fair value.

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Reconciliation Of The Denominators Used To Calculate Basic EPS And Diluted EPS

	Three Months Ended June 30,		Six Months Ended June 30,
	(In thousands)		(In thousands)
	(Unaudited)		(Unaudited)
	2013	2012	2013	2012
Weighted average shares outstanding-basic	124,377	121,801	123,845	121,360
Plus: Common share equivalents
Stock options, RSUs	893	958	979	1,016
Weighted average shares outstanding-diluted	125,270	122,759	124,824	122,376

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Subsequent Events (Details) (USD $)	6 Months Ended
	Jun. 30, 2013
Subsequent Events [Abstract]
Dividend payable, date declared	Jul. 24, 2013
Dividend payable, amount per share	$ 0.14
Dividend payable, date payable	Sep. 03, 2013
Dividend payable, date of record	Aug. 12, 2013

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Segment Information

6 Months Ended

Jun. 30, 2013

Segment Information [Abstract]

Segment Information

Note 12 –Segment information 

We determine operating segments using the management approach. The management approach designates the internal organization that is used by management for making operating decisions and assessing performance as the source of our operating segments. It also requires disclosures about products and services, geographic areas and major customers.  

We have defined our operating segment based on geographic regions. We sell our products in four geographic regions. Our sales to these regions share similar economic characteristics, similar product mix, similar customers, and similar distribution methods. Accordingly, we have elected to aggregate these four geographic regions into a single operating segment. Revenue from the sale of our products which are similar in nature and software maintenance are reflected as total net sales in our Consolidated Statements of Income.  

Total net sales, operating income, interest income and long-lived assets, classified by the major geographic areas in which we operate, are as follows:

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Net sales:
Americas	$	112,522	$	113,175	$	232,239	$	219,962
Europe		74,611		73,060		153,672		148,767
East Asia		81,574		73,927		142,344		132,851
Emerging Markets		27,419		32,097		54,359		51,812
	$	296,126	$	292,259	$	582,614	$	553,392
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Operating income:
Americas	$	5,673	$	9,590	$	18,596	$	22,121
Europe		30,037		33,245		62,996		67,882
East Asia		33,524		32,868		59,766		58,870
Emerging Markets		8,360		13,447		16,886		18,636
Unallocated:
Research and development expenses		(58,473)		(54,286)		(119,729)		(108,301)
	$	19,121	$	34,864	$	38,515	$	59,208
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Interest income:
Americas	$	(2)	$	16	$	19	$	107
Europe		152		90		284		184
East Asia		8		4		14		25
Emerging Markets		19		22		45		46
	$	177	$	132	$	362	$	362
		June 30, 2013		December 31, 2012
		(Unaudited)
Long-lived assets:
Americas	$	126,200	$	120,329
Europe		49,478		48,465
East Asia		4,274		3,428
Emerging Markets		83,963		77,499
	$	263,915	$	249,721

Total sales outside the U.S. for the three month periods ended June 30, 2013 and 2012 were $191.9 million and $186.1 million, respectively, and $372.4 million and $350.1 million for the six month periods ended June 30, 2013 and 2012, respectively.

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Comprehensive Income (Schedule Of Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Comprehensive Income [Abstract]
Currency translation adjustment, Beginning Balance			$ 208	$ (1,543)
Currency translation adjustment, Current-period other comprehensive income (loss)	(325)	(5,597)	(3,249)	(1,281)
Currency translation adjustment, Income tax (expense) benefit			1	(327)
Currency translation adjustment, Ending Balance	(3,042)	(2,497)	(3,042)	(2,497)
Investments, Beginning Balance			(620)	(664)
Investments, Current-period other comprehensive income (loss)	36	(404)	(406)	889
Investments, Income tax (expense) benefit			19	189
Investments, Ending Balance	(1,045)	36	(1,045)	36
Derivative instruments, Beginning Balance			1,256	(1,293)
Derivative instruments, Current-period other comprehensive income (loss)			5,678	5,993
Derivative instruments, Reclassified from accumulated OCI into income			(2,026)	(1,362)
Derivative instruments, Income tax (expense) benefit			1,333	1,158
Derivative instruments, Ending Balance	3,575	2,180	3,575	2,180
Accumulated other comprehensive income, Beginning Balance			844	(3,500)
Accumulated other comprehensive income, Current-period other comprehensive income (loss)			2,023	5,601
Accumulated other comprehensive income, Reclassification from accumulated OCI into income			(2,026)	(1,362)
Accumulated other comprehensive income (loss), Income tax (expense) benefit	191	(1,005)	1,353	1,020
Accumulated other comprehensive income, Ending Balance	$ (512)	$ (281)	$ (512)	$ (281)

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Fair Value Measurements (Assets And Liabilities Measured On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified																															6 Months Ended
	Jun. 30, 2013 item	Dec. 31, 2012	Jun. 30, 2013 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Dec. 31, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Jun. 30, 2013 Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2012 Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2013 Money Market Accounts [Member]	Dec. 31, 2012 Money Market Accounts [Member]	Jun. 30, 2013 Money Market Accounts [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Dec. 31, 2012 Money Market Accounts [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Jun. 30, 2013 Municipal Bonds [Member]	Dec. 31, 2012 Municipal Bonds [Member]	Jun. 30, 2013 Municipal Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2012 Municipal Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2013 Corporate Bonds [Member]	Dec. 31, 2012 Corporate Bonds [Member]	Jun. 30, 2013 Corporate Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2012 Corporate Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2013 U.S. Treasuries And Agencies Available For Sale Securities Portion [Member]	Dec. 31, 2012 U.S. Treasuries And Agencies Available For Sale Securities Portion [Member]	Jun. 30, 2013 U.S. Treasuries And Agencies Available For Sale Securities Portion [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2012 U.S. Treasuries And Agencies Available For Sale Securities Portion [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2013 Foreign Government Bonds [Member]	Dec. 31, 2012 Foreign Government Bonds [Member]	Jun. 30, 2013 Foreign Government Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2012 Foreign Government Bonds [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2013 Time Deposits [Member]	Dec. 31, 2012 Time Deposits [Member]	Jun. 30, 2013 Time Deposits [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Dec. 31, 2012 Time Deposits [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Jun. 30, 2013 Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents and short-term investments available for sale	$ 323,550	$ 335,162					$ 36,682	$ 20,656	$ 36,682	$ 20,656	$ 1,435	$ 1,466	$ 1,435	$ 1,466	$ 15,756	$ 7,778	$ 15,756	$ 7,778	$ 117,651	$ 135,925	$ 117,651	$ 135,925	$ 16,216	$ 25,085	$ 16,216	$ 25,085	$ 2,912	$ 2,912
Time deposits																											2,912	2,912	2,912	2,912
Derivatives	8,007	4,246			8,007	4,246
Total Assets	198,659	198,068	39,594	23,568	159,065	174,500
Derivatives	(1,538)	(2,804)			(1,538)	(2,804)
Total Liabilities	$ (1,538)	$ (2,804)			$ (1,538)	$ (2,804)
Contractual maturities of short-term investments																															24 months
Number of items measured at fair value on a nonrecurring basis	0

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Derivative Instruments And Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2013

Derivative Instruments And Hedging Activities [Abstract]

Summary Of Notional Amounts Of Derivative Instruments

(In thousands)		US Dollar Equivalent
		As of June 30, 2013		As of December 31,
		(Unaudited)		2012
Euro	$	60,559	$	84,770
Japanese yen		31,639		42,209
Hungarian forint		31,979		36,005
Total forward contracts notional amount	$	124,177	$	162,984

Fair Values Of Derivative Instruments On Consolidated Balance Sheets

	Asset Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	4,191	Prepaid expenses and other current assets	$	2,956
Foreign exchange contracts - LT forwards	Other long-term assets		2,567	Other long-term assets		1,046
Total derivatives designated as hedging instruments		$	6,758		$	4,002
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	1,249	Prepaid expenses and other current assets	$	244
Total derivatives not designated as hedging instruments		$	1,249		$	244
Total derivatives		$	8,007		$	4,246

	Liability Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(846)	Accrued expenses and other liabilities	$	(1,292)
Foreign exchange contracts - LT forwards	Other long-term liabilities		(259)	Other long-term liabilities		(798)
Total derivatives designated as hedging instruments		$	(1,105)		$	(2,090)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(433)	Accrued expenses and other liabilities	$	(714)
Total derivatives not designated as hedging instruments		$	(433)		$	(714)
Total derivatives		$	(1,538)		$	(2,804)

Effect Of Derivative Instruments On Consolidated Statements Of Income

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three month periods ended June 30, 2013 and 2012, respectively:

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	(268)	Net sales	$	804	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,161	Cost of sales		(34)	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		681	Operating expenses		(9)	Net foreign exchange gain (loss)		-
Total	$	1,574		$	761		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,281	Net sales	$	728	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(377)	Cost of sales		103	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(157)	Operating expenses		8	Net foreign exchange gain (loss)		-
Total	$	747		$	839		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	502	$	794
Total		$	502	$	794

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the six month periods ended June 30, 2013 and 2012, respectively.

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	3,995	Net sales	$	1,962	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(266)	Cost of sales		74	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(77)	Operating expenses		(10)	Net foreign exchange gain (loss)		-
Total	$	3,652		$	2,026		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,743	Net sales	$	1,204	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,870	Cost of sales		95	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		1,018	Operating expenses		63	Net foreign exchange gain (loss)		-
Total	$	4,631		$	1,362		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	1,826	$	(236)
Total		$	1,826	$	(236)

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Measurements [Abstract]

Assets And Liabilities Measured On Recurring Basis

		Fair Value Measurements at Reporting Date Using
(In thousands)		(Unaudited)
Description		June 30, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	36,682	$	36,682	$		$	-
U.S. treasuries and agencies		-				-		-
Short-term investments available for sale:
Municipal bonds		1,435				1,435		-
Corporate bonds		15,756				15,756		-
U.S. treasuries and agencies		117,651				117,651		-
Foreign government bonds		16,216				16,216		-
Time deposits		2,912		2,912				-
Derivatives		8,007				8,007		-
Total Assets	$	198,659	$	39,594	$	159,065	$	-
Liabilities
Derivatives	$	(1,538)	$	-	$	(1,538)	$	-
Total Liabilities	$	(1,538)	$	-	$	(1,538)	$	-
(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	20,656	$	20,656	$	-	$	-
U.S. Treasuries and Agencies		-		-		-		-
Short-term investments available for sale:
Municipal bonds		1,466		-		1,466		-
Corporate bonds		7,778		-		7,778		-
U.S. treasuries and agencies		135,925		-		135,925		-
Foreign government bonds		25,085		-		25,085		-
Time deposits		2,912		2,912		-		-
Derivatives		4,246		-		4,246		-
Total Assets	$	198,068	$	23,568	$	174,500	$	-
Liabilities
Derivatives	$	(2,804)	$	-	$	(2,804)	$	-
Total Liabilities	$	(2,804)	$	-	$	(2,804)	$	-

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Goodwill (Schedule Of Goodwill) (Details) (USD $)	3 Months Ended	6 Months Ended
	Mar. 31, 2013	Jun. 30, 2013 segment
Goodwill [Abstract]
Balance as of December 31, 2012	$ 147,258,000	$ 147,258,000
Purchase price adjustments		(100,000)
Foreign currency translation impact		(236,000)
Balance as of June 30, 2013 (unaudited)		146,922,000
Number of operating segments		1
Reduction of goodwill	$ 100,000

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Basis Of Presentation (Details) (USD $)	0 Months Ended
	May 14, 2013	Jun. 30, 2013	Dec. 31, 2012
Basis Of Presentation [Abstract]
Increase in authorized shares of common stock	180,000,000
Common and preferred stock shares authorized		365,000,000
Preferred stock, shares authorized		5,000,000	5,000,000
Preferred stock, par value		$ 0.01	$ 0.01
Common stock, shares authorized		360,000,000	180,000,000
Common stock, par value		$ 0.01	$ 0.01

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Derivative Instruments And Hedging Activities (Summary Of Notional Amounts Of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivative [Line Items]
Total forward contracts notional amount	$ 124,177	$ 162,984
Euro Member Countries, Euro
Derivative [Line Items]
Total forward contracts notional amount	60,559	84,770
Japan, Yen
Derivative [Line Items]
Total forward contracts notional amount	31,639	42,209
Hungary, Forint
Derivative [Line Items]
Total forward contracts notional amount	$ 31,979	$ 36,005

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Stock-Based Compensation Plans (Stock Options Plans And Restricted Stock Plan) (Details) (USD $)			12 Months Ended			6 Months Ended			6 Months Ended		6 Months Ended		6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2004 Incentive Plan (1994) [Member]	Dec. 31, 1997 Incentive Plan (1994) [Member]	May 09, 1994 Incentive Plan (1994) [Member]	Jun. 30, 2013 Minimum [Member] Incentive Plan (1994) [Member]	Jun. 30, 2013 Maximum [Member] Incentive Plan (1994) [Member]	May 11, 2010 Restricted Stock Plan [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Incentive Plan (2005) [Member]	May 10, 2005 Restricted Stock Plan [Member] Incentive Plan (2005) [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Incentive Plan (2010) [Member]	May 11, 2010 Restricted Stock Plan [Member] Incentive Plan (2010) [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Minimum [Member] Incentive Plan (2005) [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Minimum [Member] Incentive Plan (2010) [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Maximum [Member] Incentive Plan (2005) [Member]	Jun. 30, 2013 Restricted Stock Plan [Member] Maximum [Member] Incentive Plan (2010) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock authorized	360,000,000	180,000,000
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, par value	$ 0.01	$ 0.01
Common stock, par value	$ 0.01	$ 0.01
Number of shares reserved for issuance					13,668,750			3,362,304		4,050,000		3,000,000
Additional number of shares reserved for issuance			1,125,000	10,631,250
Award vesting period, (in years)						5 years	10 years		5 years		5 years		3 years	3 years	10 years	10 years
Number of shares available for grant											3,228,639

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Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2013

Comprehensive Income [Abstract]

Schedule Of Comprehensive Income

		June 30, 2013
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2012	$	208	$	(620)	$	1,256	$	844
Current-period other comprehensive (loss) income		(3,249)		(406)		5,678		2,023
Reclassified from accumulated OCI into income		-		-		(2,026)		(2,026)
Income tax expense		1		19		1,333		1,353
Balance as of June 30, 2013	$	(3,042)	$	(1,045)	$	3,575	$	(512)

		June 30, 2012
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2011	$	(1,543)	$	(664)	$	(1,293)	$	(3,500)
Current-period other comprehensive income		(1,281)		889		5,993		5,601
Reclassified from accumulated OCI into income		-		-		(1,362)		(1,362)
Income tax expense		(327)		189		1,158		1,020
Balance as of June 30, 2012	$	(2,497)	$	36	$	2,180	$	(281)

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Inventories (Summary Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Inventories [Abstract]
Raw materials	$ 89,767	$ 78,244
Work-in-process	8,263	8,566
Finished goods	87,248	83,180
Inventories, net	$ 185,278	$ 169,990

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Cash, Cash Equivalents And Short-Term Investments (Tables)

6 Months Ended

Jun. 30, 2013

Cash, Cash Equivalents And Short-Term Investments [Abstract]

Unrealized Gains And Losses Related To Short-Term Investments Designated As Available-For-Sale

		As of June 30, 2013
(In thousands)		(Unaudited)
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	132,898	$	-	$	-	$	-	$	132,898
Money Market Accounts		36,682		-		-		-		36,682
Municipal bonds		1,434		1		-		-		1,435
Corporate bonds		17,891		-		(27)		(2,108)		15,756
U.S. treasuries and agencies		117,625		26		-		-		117,651
Foreign government bonds		18,391		-		(13)		(2,162)		16,216
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	327,833	$	27	$	(40)	$	(4,270)	$	323,550

(In thousands)		December 31, 2012
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	141,340	$	-	$	-	$	-	$	141,340
Money Market Accounts		20,656		-		-		-		20,656
Municipal bonds		1,465		1		-		-		1,466
Corporate bonds		8,708		-		(20)		(910)		7,778
U.S. treasuries and agencies		135,953		-		(28)		-		135,925
Foreign government bonds		27,947		57		-		(2,919)		25,085
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	338,981	$	58	$	(48)	$	(3,829)	$	335,162

Contractual Maturities Of Short-Term Investments Designated As Available-For-Sale

		As of June 30, 2013
(In thousands)		(Unaudited)
		Adjusted Cost		Fair Value
Due in less than 1 year	$	130,096	$	128,990
Due in 1 to 5 years		28,157		24,980
Total available-for-sale debt securities	$	158,253	$	153,970
Due in less than 1 year		Adjusted Cost		Fair Value
Corporate bonds	$	-	$	-
U.S. treasuries and agencies		117,625		117,651
Foreign government bonds		9,559		8,427
Time deposits		2,912		2,912
Total available-for-sale debt securities	$	130,096	$	128,990
Due in 1 to 5 years		Adjusted Cost		Fair Value
Municipal bonds	$	1,434	$	1,435
Corporate bonds		17,891		15,756
U.S. treasuries and agencies		-		-
Foreign government bonds		8,832		7,789
Total available-for-sale debt securities	$	28,157	$	24,980

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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flow from operating activities:
Net income	$ 33,021	$ 45,083
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	33,555	27,316
Stock-based compensation	14,006	13,285
Tax benefit from deferred income taxes	(3,633)	6,695
Tax benefit from stock option plans	(2,042)	(2,094)
Changes in operating assets and liabilities:
Accounts receivable	14,358	(31,203)
Inventories	(14,732)	(16,994)
Prepaid expenses and other assets	(18,418)	(17,625)
Accounts payable	(10,612)	10,596
Deferred revenue	5,097	17,911
Taxes, accrued expenses and other liabilities	(6,208)	(11,169)
Net cash provided by operating activities	44,392	41,801
Cash flow from investing activities:
Capital expenditures	(33,147)	(28,934)
Capitalization of internally developed software	(8,073)	(9,664)
Additions to other intangibles	(2,710)	(1,085)
Purchases of short-term investments	(16,039)	(38,879)
Sales and maturities of short-term investments	35,234	183,058
Net cash (used in) provided by investing activities	(24,735)	104,496
Cash flow from financing activities:
Proceeds from issuance of common stock	20,612	14,422
Dividends paid	(34,727)	(34,019)
Tax benefit from stock option plans	2,042	2,094
Net cash used in financing activities	(12,073)	(17,503)
Net change in cash and cash equivalents	7,584	128,794
Cash and cash equivalents at beginning of period	161,996	142,608
Cash and cash equivalents at end of period	$ 169,580	$ 271,402

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Earnings Per Share

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

Note 2 – Earnings per share  

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income by the weighted average number of common shares and common share equivalents outstanding (if dilutive) during each period. The number of common share equivalents, which include stock options and restricted stock units (“RSUs”), is computed using the treasury stock method.  

The reconciliation of the denominators used to calculate basic EPS and diluted EPS for the three and six month periods ended June 30, 2013 and 2012, are as follows:

	Three Months Ended June 30,		Six Months Ended June 30,
	(In thousands)		(In thousands)
	(Unaudited)		(Unaudited)
	2013	2012	2013	2012
Weighted average shares outstanding-basic	124,377	121,801	123,845	121,360
Plus: Common share equivalents
Stock options, RSUs	893	958	979	1,016
Weighted average shares outstanding-diluted	125,270	122,759	124,824	122,376

Stock awards to acquire 538,100 and 4,300 shares for the three months ended June 30, 2013 and 2012, respectively, and 183,500 and 74,900 shares for the six month period ended June 30, 2013 and 2012, respectively, were excluded in the computations of diluted EPS because the effect of including the stock awards would have been anti-dilutive.

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Derivative Instruments And Hedging Activities

6 Months Ended

Jun. 30, 2013

Derivative Instruments And Hedging Activities [Abstract]

Derivative Instruments And Hedging Activities

 Note 5 – Derivative instruments and hedging activities  

We recognize all of our derivative instruments as either assets or liabilities in our statement of financial position at fair value. The accounting for changes in the fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, we designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in a foreign operation.  

We have operations in over 40 countries. Sales outside of the Americas accounted for approximately 62% and 61% of our revenues during the three month periods ended June 30, 2013 and 2012, respectively, and 60% of our revenues during each of the six month periods ended June 30, 2013 and 2012, respectively. Our activities expose us to a variety of market risks, including the effects of changes in foreign currency exchange rates. These financial risks are monitored and managed by us as an integral part of our overall risk management program.

We maintain a foreign currency risk management strategy that uses derivative instruments (foreign currency forward and purchased option contracts) to help protect our earnings and cash flows from fluctuations caused by the volatility in currency exchange rates. Movements in foreign currency exchange rates pose a risk to our operations and competitive position, since exchange rate changes may affect our profitability and cash flow, and the business or pricing strategies of our non-U.S. based competitors.  

The vast majority of our foreign sales are denominated in the customers’ local currency. We purchase foreign currency forward and option contracts as hedges of forecasted sales that are denominated in foreign currencies and as hedges of foreign currency denominated receivables. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash inflows resulting from such sales or firm commitments will be adversely affected by changes in exchange rates. We also purchase foreign currency forward contracts as hedges of forecasted expenses that are denominated in foreign currencies. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash outflows resulting from foreign currency operating and cost of revenue expenses will be adversely affected by changes in exchange rates.  

We designate foreign currency forward and purchased option contracts as cash flow hedges of forecasted revenues or forecasted expenses. In addition, we hedge our foreign currency denominated balance sheet exposures using foreign currency forward contracts that are not designated as hedging instruments. None of our derivative instruments contain a credit-risk-related contingent feature.  

Cash flow hedges  

To help protect against the reduction in value caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales over the next one to three years, we have instituted a foreign currency cash flow hedging program. We hedge portions of our forecasted revenue and forecasted expenses denominated in foreign currencies with forward and purchased option contracts. For forward contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the forward contracts designated as hedges. For option contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the option contracts net of the premium paid designated as hedges. Our foreign currency purchased option contracts are purchased “at-the-money” or “out-of-the-money”. We purchase foreign currency forward and option contracts for up to 100% of our forecasted exposures in selected currencies (primarily in Euro, Japanese yen, and Hungarian forint) and limit the duration of these contracts to 40 months or less.  

For derivative instruments that are designated and qualify as a cash flow hedge, the effective portion of the gain or loss on the derivative is reported as a component of accumulated other comprehensive income (“OCI”) and reclassified into earnings in the same line item (net sales, operating expenses, or cost of sales) associated with the forecasted transaction and in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current earnings or expenses during the current period and are classified as a component of “net foreign exchange gain (loss)”. Hedge effectiveness of foreign currency forwards and purchased option contracts designated as cash flow hedges are measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the forecasted transaction’s terminal value.  

We held forward contracts with the following notional amounts:

(In thousands)		US Dollar Equivalent
		As of June 30, 2013		As of December 31,
		(Unaudited)		2012
Euro	$	60,559	$	84,770
Japanese yen		31,639		42,209
Hungarian forint		31,979		36,005
Total forward contracts notional amount	$	124,177	$	162,984

The contracts in the foregoing table had contractual maturities of 36 months or less at June 30, 2013 and December 31, 2012.  

At June 30, 2013, we expect to reclassify $3.6 million of gains on derivative instruments from accumulated OCI to net sales during the next twelve months when the hedged international sales occur, $204,000 of losses on derivative instruments from accumulated OCI to cost of sales when the cost of sales are incurred and $47,000 of losses on derivative instruments from accumulated OCI to operating expenses during the next twelve months when the hedged operating expenses occur. Expected amounts are based on derivative valuations at June 30, 2013. Actual results may vary as a result of changes in the corresponding exchange rate subsequent to this date.  

We did not record any ineffectiveness from our hedges during the three and six month periods ended June 30, 2013 and 2012.  

Other Derivatives  

Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge our foreign denominated net receivable or net payable positions to protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically attempt to hedge up to 90% of our outstanding foreign denominated net receivables or net payables and typically limit the duration of these foreign currency forward contracts to approximately 120 days. The gain or loss on the derivatives as well as the offsetting gain or loss on the hedge item attributable to the hedged risk is recognized in current earnings under the line item “net foreign exchange loss”. As of June 30, 2013 and December 31, 2012, we held foreign currency forward contracts with a notional amount of $53 million and  $69 million, respectively.   

The following tables present the fair value of derivative instruments on our Consolidated Balance Sheets and the effect of derivative instruments on our Consolidated Statements of Income.   

Fair Values of Derivative Instruments:

	Asset Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	4,191	Prepaid expenses and other current assets	$	2,956
Foreign exchange contracts - LT forwards	Other long-term assets		2,567	Other long-term assets		1,046
Total derivatives designated as hedging instruments		$	6,758		$	4,002
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	1,249	Prepaid expenses and other current assets	$	244
Total derivatives not designated as hedging instruments		$	1,249		$	244
Total derivatives		$	8,007		$	4,246

	Liability Derivatives
	June 30, 2013			December 31, 2012
(In thousands)	(Unaudited)
	Balance Sheet Location		Fair Value	Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(846)	Accrued expenses and other liabilities	$	(1,292)
Foreign exchange contracts - LT forwards	Other long-term liabilities		(259)	Other long-term liabilities		(798)
Total derivatives designated as hedging instruments		$	(1,105)		$	(2,090)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Accrued expenses and other liabilities	$	(433)	Accrued expenses and other liabilities	$	(714)
Total derivatives not designated as hedging instruments		$	(433)		$	(714)
Total derivatives		$	(1,538)		$	(2,804)

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three month periods ended June 30, 2013 and 2012, respectively:

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	(268)	Net sales	$	804	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,161	Cost of sales		(34)	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		681	Operating expenses		(9)	Net foreign exchange gain (loss)		-
Total	$	1,574		$	761		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,281	Net sales	$	728	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(377)	Cost of sales		103	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(157)	Operating expenses		8	Net foreign exchange gain (loss)		-
Total	$	747		$	839		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	502	$	794
Total		$	502	$	794

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the six month periods ended June 30, 2013 and 2012, respectively.

June 30, 2013
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	3,995	Net sales	$	1,962	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		(266)	Cost of sales		74	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		(77)	Operating expenses		(10)	Net foreign exchange gain (loss)		-
Total	$	3,652		$	2,026		$	-

June 30, 2012
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship		Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)		Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Foreign exchange contracts - forwards and options	$	1,743	Net sales	$	1,204	Net foreign exchange gain (loss)	$	-
Foreign exchange contracts - forwards and options		1,870	Cost of sales		95	Net foreign exchange gain (loss)		-
Foreign exchange contracts - forwards and options		1,018	Operating expenses		63	Net foreign exchange gain (loss)		-
Total	$	4,631		$	1,362		$	-

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
			June 30, 2013		June 30, 2012
			(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Net foreign exchange gain/(loss)	$	1,826	$	(236)
Total		$	1,826	$	(236)

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Cash, Cash Equivalents And Short-Term Investments

6 Months Ended

Jun. 30, 2013

Cash, Cash Equivalents And Short-Term Investments [Abstract]

Cash, Cash Equivalents And Short-Term Investments

Note 3 – Cash, cash equivalents and short-term investments  

The following tables summarize unrealized gains and losses related to our short-term investments designated as available-for-sale:

		As of June 30, 2013
(In thousands)		(Unaudited)
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	132,898	$	-	$	-	$	-	$	132,898
Money Market Accounts		36,682		-		-		-		36,682
Municipal bonds		1,434		1		-		-		1,435
Corporate bonds		17,891		-		(27)		(2,108)		15,756
U.S. treasuries and agencies		117,625		26		-		-		117,651
Foreign government bonds		18,391		-		(13)		(2,162)		16,216
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	327,833	$	27	$	(40)	$	(4,270)	$	323,550

(In thousands)		December 31, 2012
				Gross		Gross		Cumulative
		Adjusted Cost		Unrealized Gain		Unrealized Loss		Translation Adjustment		Fair Value
Cash	$	141,340	$	-	$	-	$	-	$	141,340
Money Market Accounts		20,656		-		-		-		20,656
Municipal bonds		1,465		1		-		-		1,466
Corporate bonds		8,708		-		(20)		(910)		7,778
U.S. treasuries and agencies		135,953		-		(28)		-		135,925
Foreign government bonds		27,947		57		-		(2,919)		25,085
Time deposits		2,912		-		-		-		2,912
Cash, cash equivalents, and short-term investments	$	338,981	$	58	$	(48)	$	(3,829)	$	335,162

The following tables summarize the contractual maturities of our short-term investments designated as available-for-sale:

		As of June 30, 2013
(In thousands)		(Unaudited)
		Adjusted Cost		Fair Value
Due in less than 1 year	$	130,096	$	128,990
Due in 1 to 5 years		28,157		24,980
Total available-for-sale debt securities	$	158,253	$	153,970
Due in less than 1 year		Adjusted Cost		Fair Value
Corporate bonds	$	-	$	-
U.S. treasuries and agencies		117,625		117,651
Foreign government bonds		9,559		8,427
Time deposits		2,912		2,912
Total available-for-sale debt securities	$	130,096	$	128,990
Due in 1 to 5 years		Adjusted Cost		Fair Value
Municipal bonds	$	1,434	$	1,435
Corporate bonds		17,891		15,756
U.S. treasuries and agencies		-		-
Foreign government bonds		8,832		7,789
Total available-for-sale debt securities	$	28,157	$	24,980

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Derivative Instruments And Hedging Activities (Fair Values Of Derivative Instruments On Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative assets	$ 8,007	$ 4,246
Derivative liabilities	(1,538)	(2,804)
Derivatives Designated As Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	6,758	4,002
Derivative liabilities	(1,105)	(2,090)
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contract - Short-Term [Member] | Prepaid Expenses And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	4,191	2,956
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contract - Short-Term [Member] | Accrued Expenses And Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	(846)	(1,292)
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contracts - Long-Term [Member] | Other Long-Term Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	2,567	1,046
Derivatives Designated As Hedging Instruments [Member] | Foreign Exchange Contracts - Long-Term [Member] | Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	(259)	(798)
Derivatives Not Designated As Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,249	244
Derivative liabilities	(433)	(714)
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract - Short-Term [Member] | Prepaid Expenses And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,249	244
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contract - Short-Term [Member] | Accrued Expenses And Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ (433)	$ (714)

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Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventories [Abstract]

Summary Of Inventories

		June 30, 2013		December 31,
(In thousands)		(Unaudited)		2012
Raw materials	$	89,767	$	78,244
Work-in-process		8,263		8,566
Finished goods		87,248		83,180
	$	185,278	$	169,990

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2013

Segment Information [Abstract]

Schedule Of Net Sales, Operating Income, Interest Income And Long-Lived Assets By Major Geographical Areas

		Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Net sales:
Americas	$	112,522	$	113,175	$	232,239	$	219,962
Europe		74,611		73,060		153,672		148,767
East Asia		81,574		73,927		142,344		132,851
Emerging Markets		27,419		32,097		54,359		51,812
	$	296,126	$	292,259	$	582,614	$	553,392
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Operating income:
Americas	$	5,673	$	9,590	$	18,596	$	22,121
Europe		30,037		33,245		62,996		67,882
East Asia		33,524		32,868		59,766		58,870
Emerging Markets		8,360		13,447		16,886		18,636
Unallocated:
Research and development expenses		(58,473)		(54,286)		(119,729)		(108,301)
	$	19,121	$	34,864	$	38,515	$	59,208
		Three Months Ended June 30,				Six Months Ended June 30,
		(Unaudited)				(Unaudited)
		2013		2012		2013		2012
Interest income:
Americas	$	(2)	$	16	$	19	$	107
Europe		152		90		284		184
East Asia		8		4		14		25
Emerging Markets		19		22		45		46
	$	177	$	132	$	362	$	362
		June 30, 2013		December 31, 2012
		(Unaudited)
Long-lived assets:
Americas	$	126,200	$	120,329
Europe		49,478		48,465
East Asia		4,274		3,428
Emerging Markets		83,963		77,499
	$	263,915	$	249,721

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Cash, Cash Equivalents And Short-Term Investments (Contractual Maturities Of Short-Term Investments Designated As Available-For-Sale) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in less than 1 year	$ 130,096
Fair Value, Due in less than 1 year	128,990
Adjusted Cost, Due in 1 to 5 years	28,157
Fair Value, Due in 1 to 5 years	24,980
Adjusted Cost, Total	158,253
Fair Value, Total	153,970
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in 1 to 5 years	1,434
Fair Value, Due in 1 to 5 years	1,435
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in less than 1 year
Fair Value, Due in less than 1 year
Adjusted Cost, Due in 1 to 5 years	17,891
Fair Value, Due in 1 to 5 years	15,756
U.S. Treasuries And Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in less than 1 year	117,625
Fair Value, Due in less than 1 year	117,651
Foreign Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in less than 1 year	9,559
Fair Value, Due in less than 1 year	8,427
Adjusted Cost, Due in 1 to 5 years	8,832
Fair Value, Due in 1 to 5 years	7,789
Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost, Due in less than 1 year	2,912
Fair Value, Due in less than 1 year	$ 2,912

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Commitments And Contingencies (Schedule Of Warranty Reserve) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Commitments And Contingencies [Abstract]
Balance at the beginning of the period	$ 1,435	$ 1,271
Accruals for warranties issued during the period	1,459	1,104
Settlements made (in cash or in kind) during the period	(1,392)	(1,070)
Balance at the end of the period	$ 1,502	$ 1,305

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Stock-Based Compensation Plans (Employee Stock Purchase Plan And Authorized Preferred Stock And Preferred Stock Purchase Rights Plan) (Details) (USD $)			0 Months Ended	6 Months Ended				6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	May 10, 2011 Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Employee Stock Purchase Plan [Member] Maximum [Member]	Jun. 30, 2013 Authorized Preferred Stock And Preferred Stock Purchase Rights Plan [Member] item	Jan. 21, 2004 Authorized Preferred Stock And Preferred Stock Purchase Rights Plan [Member]	Jun. 30, 2013 Authorized Preferred Stock And Preferred Stock Purchase Rights Plan [Member] Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee subscription rate					15.00%
Percentage of the lower of the market related to purchase of common stock				85.00%
Additional number of shares reserved for issuance			3,000,000
Shares of common stock reserved for future employee purchases				1,957,532
Shares issued during the period, in shares				629,495
Weighted average grant date fair value, in dollar per share				$ 21.50
Preferred stock, shares authorized	5,000,000	5,000,000
Number of shares reserved for issuance							750,000
Number of preferred shares declared for each share of common stock outstanding, in shares						1
Amount of Series A Participating Preferred Stock each right entitles its holder to purchase						.001
Exercise price of Series A Participating Preferred Stock Rights, in dollar per share						$ 200
Percentage of common stock before rights become exercisable						20.00%
Multiple of original exercise price for which holder is entitled to purchase (in number of times: 2x, 3x, etc.)						2
Redemption price of Series A Participating Preferred Stock						$ 0.01
Expiration date								May 10, 2014

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Intangibles (Schedule Of Finite-Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 188,083	$ 186,407
Accumulated Amortization	(100,111)	(92,494)
Net Carrying Amount	87,972	93,913
Capitalized Software Development Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	47,339	45,064
Accumulated Amortization	(24,469)	(23,450)
Net Carrying Amount	22,870	21,614
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	88,925	89,876
Accumulated Amortization	(47,852)	(42,562)
Net Carrying Amount	41,073	47,314
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	25,052	24,046
Accumulated Amortization	(10,221)	(9,398)
Net Carrying Amount	14,831	14,648
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	26,767	27,421
Accumulated Amortization	(17,569)	(17,084)
Net Carrying Amount	$ 9,198	$ 10,337

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Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	360,000,000	180,000,000
Common stock, shares issued	124,784,176	122,878,690
Common stock, shares outstanding	124,784,176	122,878,690

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Goodwill

6 Months Ended

Jun. 30, 2013

Goodwill [Abstract]

Goodwill

 Note 8 – Goodwill

The carrying amount of goodwill as of June 30, 2013, was as follows:

		Amount
		(In thousands)
Balance as of December 31, 2012	$	147,258
Purchase price adjustments		(100)
Foreign currency translation impact		(236)
Balance as of June 30, 2013 (unaudited)	$	146,922

The excess purchase price over the fair value of assets acquired is recorded as goodwill. During the first quarter of 2013, we adjusted the purchase price for one of our 2012 acquisitions, which resulted in the reduction of goodwill by $100,000. As we have one operating segment, we allocate goodwill to one reporting unit for goodwill impairment testing. Goodwill is tested for impairment on an annual basis, and between annual tests if indicators of potential impairment exist, using a fair-value-based approach based on the market capitalization of the reporting unit. Our annual impairment test was performed as of February 28, 2013. Noimpairment of goodwill was identified during 2013 and 2012. Goodwill is deductible for tax purposes in certain jurisdictions.

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Statement Of Consolidated Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement Of Consolidated Comprehensive Income [Abstract]
Net income	$ 14,421	$ 26,441	$ 33,021	$ 45,083
Other comprehensive income, before tax and net of reclassification adjustments:
Foreign currency translation adjustment	(325)	(5,597)	(3,249)	(1,281)
Unrealized gain (loss) on securities available-for-sale	36	(404)	(406)	889
Unrealized gain on derivative instruments	1,574	747	3,652	4,631
Other comprehensive income (loss), before tax	1,285	(5,254)	(3)	4,239
Tax expense related to items of other comprehensive income	191	(1,005)	1,353	1,020
Other comprehensive income (loss), net of tax	1,094	(4,249)	(1,356)	3,219
Comprehensive income	$ 15,515	$ 22,192	$ 31,665	$ 48,302

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 169,580	$ 161,996
Short-term investments	153,970	173,166
Accounts receivable, net	172,880	187,060
Inventories, net	185,278	169,990
Prepaid expenses and other current assets	68,202	48,009
Deferred income taxes, net	30,197	27,479
Total current assets	780,107	767,700
Property and equipment, net	263,915	249,721
Goodwill	146,922	147,258
Intangible assets, net	87,972	93,913
Other long-term assets	25,303	26,177
Total assets	1,304,219	1,284,769
Current liabilities:
Accounts payable	54,606	65,080
Accrued compensation	28,467	29,978
Deferred revenue- current	95,137	90,714
Accrued expenses and other liabilities	33,412	34,373
Other taxes payable	22,315	24,811
Total current liabilities	233,937	244,956
Deferred income taxes	46,480	47,630
Liability for uncertain tax positions	22,277	20,920
Deferred revenue- long term	21,120	20,446
Other long-term liabilities	8,646	11,689
Total liabilities	332,460	345,641
Commitments and contingencies
Stockholders' equity:
Preferred stock: par value $0.01; 5,000,000 shares authorized; none issued and outstanding
Common stock: par value $0.01; 360,000,000 shares authorized; 124,784,176 and 122,878,690 shares issued and outstanding, respectively	1,248	1,229
Additional paid-in capital	568,426	532,845
Retained earnings	402,597	404,210
Accumulated other comprehensive (loss) income	(512)	844
Total stockholders' equity	971,759	939,128
Total liabilities and stockholders' equity	$ 1,304,219	$ 1,284,769

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Segment Information (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 region	Jun. 30, 2012
Segment Information [Abstract]
Number of geographic regions where products are sold			4
Total sales outside the United States	$ 191.9	$ 186.1	$ 372.4	$ 350.1

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Intangibles (Tables)

6 Months Ended

Jun. 30, 2013

Intangibles [Abstract]

Schedule Of Finite-Lived Intangible Assets

		June 30, 2013
(In thousands)		(Unaudited)						December 31, 2012
		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	47,339	$	(24,469)	$	22,870	$	45,064	$	(23,450)	$	21,614
Acquired technology		88,925		(47,852)		41,073		89,876		(42,562)		47,314
Patents		25,052		(10,221)		14,831		24,046		(9,398)		14,648
Other		26,767		(17,569)		9,198		27,421		(17,084)		10,337
	$	188,083	$	(100,111)	$	87,972	$	186,407	$	(92,494)	$	93,913

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Subsequent Events

6 Months Ended

Jun. 30, 2013

Subsequent Events [Abstract]

Subsequent Events

Note 17 – Subsequent events  

We have evaluated subsequent events through the date the financial statements were issued.  

On July 24, 2013, our Board of Directors declared a quarterly cash dividend of $0.14 per common share, payable September 3, 2013, to shareholders of record on August 12, 2013.

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Intangibles (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Total intangible assets amortization expenses	$ 7,900,000	$ 7,000,000	$ 16,300,000	$ 13,700,000
Capitalized Software Development Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Capitalized software development costs	5,500,000	6,100,000	8,500,000	10,100,000
Capitalized computer software amortization	3,500,000	3,500,000	7,200,000	7,100,000
Costs related to stock based compensation	$ 262,000	$ 221,000	$ 402,000	$ 400,000
Useful life (in years)			3 years
Minimum [Member] | Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			3 years
Minimum [Member] | Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			10 years
Maximum [Member] | Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			8 years
Maximum [Member] | Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life (in years)			17 years

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Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Commitments And Contingencies [Abstract]
Limited warranty on most hardware products (in number of years)	1 year
Warranty on a subset of our hardware products, minimum (in number of years)	2 years
Warranty on a subset of our hardware products, maximum (in number of years)	3 years
Amount of non-cancelable purchase commitments with various suppliers of customized inventory and inventory components	$ 11.0
Amount of guarantees for payment of customs and foreign grants	$ 4.9

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Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended					6 Months Ended
	Jun. 30, 2013 country	Jun. 30, 2012	Jun. 30, 2013 country	Jun. 30, 2012	Jun. 30, 2013 Forward Contracts [Member]	Jun. 30, 2013 Other Derivatives [Member]	Dec. 31, 2012 Other Derivatives [Member]	Jun. 30, 2013 Maximum [Member] Forward Contracts [Member]	Jun. 30, 2013 Maximum [Member] Other Derivatives [Member]
Derivative [Line Items]
Minimum number of countries for which entity has operations	40		40
Percentage of sales outside of the Americas during the period	62.00%	61.00%	60.00%	60.00%
Period of protection against the reduction in value caused by a fluctuation, minimum (in number of years)			1 year
Percentage of derivative risk hedged								100.00%	90.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss			36 months					40 months	120 days
Foreign currency forward contracts notional amount						$ 53,000,000	$ 69,000,000
Estimated amount of reclassification of gains on derivative instruments from accumulated other comprehensive income to net sales					3,600,000
Estimated amount of reclassification of losses on derivative instruments from accumulated other comprehensive income to cost of sales					204,000
Estimated amount of reclassification of gains on derivative instruments from accumulated other comprehensive income to operating expenses					$ 47,000

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Earnings Per Share (Reconciliation Of The Denominators Used To Calculate Basic EPS And Diluted EPS) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Weighted average shares outstanding-basic	124,377,000	121,801,000	123,845,000	121,360,000
Plus: Common share equivalents Stock options, restricted stock units	893,000	958,000	979,000	1,016,000
Weighted average shares outstanding-diluted	125,270,000	122,759,000	124,824,000	122,376,000
Anti-dilutive securities excluded from the computation of diluted EPS	538,100	4,300	183,500	74,900

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Cash, Cash Equivalents And Short-Term Investments (Unrealized Gains And Losses Related To Short-Term Investments Designated As Available-For-Sale) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	$ 327,833	$ 338,981
Gross Unrealized Gain	27	58
Gross Unrealized Loss	(40)	(48)
Cumulative Translation Adjustment	(4,270)	(3,829)
Fair Value	323,550	335,162
Cash [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	132,898	141,340
Fair Value	132,898	141,340
Money Market Accounts [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	36,682	20,656
Fair Value	36,682	20,656
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	1,434	1,465
Gross Unrealized Gain	1	1
Fair Value	1,435	1,466
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	17,891	8,708
Gross Unrealized Loss	(27)	(20)
Cumulative Translation Adjustment	(2,108)	(910)
Fair Value	15,756	7,778
U.S. Treasuries And Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	117,625	135,953
Gross Unrealized Gain	26
Gross Unrealized Loss		(28)
Fair Value	117,651	135,925
Foreign Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	18,391	27,947
Gross Unrealized Gain		57
Gross Unrealized Loss	(13)
Cumulative Translation Adjustment	(2,162)	(2,919)
Fair Value	16,216	25,085
Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	2,912	2,912
Fair Value	$ 2,912	$ 2,912

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Intangibles

3 Months Ended

Jun. 30, 2013

Intangibles [Abstract]

Intangibles

Note 7 – Intangibles 

Intangibles at June 30, 2013 and December 31, 2012 are as follows:

		June 30, 2013
(In thousands)		(Unaudited)						December 31, 2012
		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	47,339	$	(24,469)	$	22,870	$	45,064	$	(23,450)	$	21,614
Acquired technology		88,925		(47,852)		41,073		89,876		(42,562)		47,314
Patents		25,052		(10,221)		14,831		24,046		(9,398)		14,648
Other		26,767		(17,569)		9,198		27,421		(17,084)		10,337
	$	188,083	$	(100,111)	$	87,972	$	186,407	$	(92,494)	$	93,913

Software development costs capitalized for the three month periods ended June 30, 2013 and 2012 were $5.5 million and $6.1 million, respectively, and related amortization expense was $3.5 million for the each of the same periods. For the six month periods ended June 30, 2013 and 2012, capitalized software development costs were $8.5 million and $10.1 million, respectively, and related amortization expense was $7.2 million and $7.1 million, respectively. Capitalized software development costs for the three month periods ended June 30, 2013 and 2012 included costs related to stock based compensation of $262,000 and $221,000, respectively. For the six month periods ended June 30, 2013 and 2012, capitalized software development costs included costs related to stock based compensation of $402,000 and $400,000, respectively. The related amounts in the table above are net of fully amortized assets.

Amortization of capitalized software development costs is computed on an individual product basis for those products available for market and is recognized based on the product’s estimated economic life, generally three years. Acquired core technology and intangible assets are amortized over their useful lives, which range from three to eight years. Patents are amortized using the straight-line method over their estimated period of benefit, generally 10 to 17 years. Total intangible assets amortization expenses were $7.9 million and $7.0 million for the three months ended June 30, 2013 and 2012, respectively, and $16.3 million and $13.7 million for the six month periods ended June 30, 2013 and 2012, respectively.

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Goodwill (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill [Abstract]

Schedule Of Goodwill

		Amount
		(In thousands)
Balance as of December 31, 2012	$	147,258
Purchase price adjustments		(100)
Foreign currency translation impact		(236)
Balance as of June 30, 2013 (unaudited)	$	146,922

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Derivative Instruments And Hedging Activities (Fair Values Of Derivative Instruments On Consolidated Statements Of Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	$ 1,574	$ 747	$ 3,652	$ 4,631
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	761	839	2,026	1,362
Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Net Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	(268)	1,281	3,995	1,743
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	804	728	1,962	1,204
Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Cost Of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	1,161	(377)	(266)	1,870
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(34)	103	74	95
Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Cash Flow Hedging [Member] | Foreign Exchange Contracts - Forwards And Options [Member] | Operating Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	681	(157)	(77)	1,018
Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(9)	8	(10)	63
Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion)
Derivatives Not Designated As Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	502	794	1,826	(236)
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange Contracts - Forwards And Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	$ 502	$ 794	$ 1,826	$ (236)

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Comprehensive Income

6 Months Ended

Jun. 30, 2013

Comprehensive Income [Abstract]

Comprehensive Income

Note 10 – Comprehensive income

Our comprehensive income is comprised of net income, foreign currency translation, unrealized gains and losses on forward and option contracts and securities classified as available-for-sale. The accumulated other comprehensive income/(loss), net of tax, for the six month periods ended June 30, 2013 and 2012, consisted of the following:  

		June 30, 2013
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2012	$	208	$	(620)	$	1,256	$	844
Current-period other comprehensive (loss) income		(3,249)		(406)		5,678		2,023
Reclassified from accumulated OCI into income		-		-		(2,026)		(2,026)
Income tax expense		1		19		1,333		1,353
Balance as of June 30, 2013	$	(3,042)	$	(1,045)	$	3,575	$	(512)

		June 30, 2012
		(Unaudited)
(In thousands)		Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2011	$	(1,543)	$	(664)	$	(1,293)	$	(3,500)
Current-period other comprehensive income		(1,281)		889		5,993		5,601
Reclassified from accumulated OCI into income		-		-		(1,362)		(1,362)
Income tax expense		(327)		189		1,158		1,020
Balance as of June 30, 2012	$	(2,497)	$	36	$	2,180	$	(281)

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Inventories

6 Months Ended

Jun. 30, 2013

Inventories [Abstract]

Inventories

Note 6 – Inventories 

Inventories, net consist of the following:

		June 30, 2013		December 31,
(In thousands)		(Unaudited)		2012
Raw materials	$	89,767	$	78,244
Work-in-process		8,263		8,566
Finished goods		87,248		83,180
	$	185,278	$	169,990

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Basis Of Presentation

6 Months Ended

Jun. 30, 2013

Basis Of Presentation [Abstract]

Basis Of Presentation

Note 1 – Basis of presentation  

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2012, included in our annual report on Form 10-K, filed with the Securities and Exchange Commission. In our opinion, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items) considered necessary to present fairly our financial position at June 30, 2013 and December 31, 2012, the results of our operations and comprehensive income for the three and six month periods ended June 30, 2013 and June 30, 2012, and the cash flows for the six month periods ended June 30, 2013 and June 30, 2012. Operating results for the three and six month periods endedJune 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

Following approval by the Company’s Board of Directors and stockholders, on May 14, 2013, the Company’s certificate of incorporation was amended to increase the authorized shares of common stock by 180,000,000 shares to a total of 360,000,000 shares.  As a result of this amendment, the total number of shares which the Company is authorized to issue is 365,000,000 shares, consisting of (i) 5,000,000 shares of preferred stock, par value $.01 per share, and (ii) 360,000,000 shares of common stock, par value $.01 per share.

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Segment Information (Schedule Of Net Sales, Operating Income, Interest Income And Long-Lived Assets By Major Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 296,126	$ 292,259	$ 582,614	$ 553,392
Operating income	19,121	34,864	38,515	59,208
Unallocated: Research and development expenses	(58,473)	(54,286)	(119,729)	(108,301)
Interest income	177	132	362	362
Long-lived assets	263,915		263,915		249,721
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	112,522	113,175	232,239	219,962
Operating income	5,673	9,590	18,596	22,121
Interest income	(2)	16	19	107
Long-lived assets	126,200		126,200		120,329
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	74,611	73,060	153,672	148,767
Operating income	30,037	33,245	62,996	67,882
Interest income	152	90	284	184
Long-lived assets	49,478		49,478		48,465
East Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	81,574	73,927	142,344	132,851
Operating income	33,524	32,868	59,766	58,870
Interest income	8	4	14	25
Long-lived assets	4,274		4,274		3,428
Emerging Markets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	27,419	32,097	54,359	51,812
Operating income	8,360	13,447	16,886	18,636
Interest income	19	22	45	46
Long-lived assets	$ 83,963		$ 83,963		$ 77,499

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Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Income Taxes [Abstract]
Unrecognized tax benefits	$ 22,300,000		$ 22,300,000		$ 20,900,000
Gross increase in unrecognized tax benefits	386,000		927,000
Accrual for interest related to uncertain tax positions	1,600,000		1,600,000
Effective tax rate	23.00%	23.00%	10.00%	22.00%
U.S. federal statutory rate	35.00%	35.00%	35.00%	35.00%
Hungary statutory tax rate			19.00%
Tax benefits recognized due to differences in Hungary statutory rates from the statutory U.S. tax rate	1,500,000	3,100,000	3,200,000	5,200,000
Tax benefits resulting from the partial release of the valuation allowance on assets from the restructuring and the enhanced tax deduction for research expenses in Hungary	$ 2,300,000	$ 4,600,000	$ 4,700,000	$ 7,700,000

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Commitments And Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments And Contingencies [Abstract]

Schedule Of Warranty Reserve

		Six Months Ended June 30,
(In thousands)		(Unaudited)
		2013		2012
Balance at the beginning of the period	$	1,435	$	1,271
Accruals for warranties issued during the period		1,459		1,104
Settlements made (in cash or in kind) during the period		(1,392)		(1,070)
Balance at the end of the period	$	1,502	$	1,305

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Debt

6 Months Ended

Jun. 30, 2013

Debt [Abstract]

Debt

Note 13 - Debt

On May 9, 2013, we entered into a Loan Agreement (the “Loan Agreement”) with Wells Fargo Bank, National Association (the “Lender”). The Loan Agreement provides for a $50 million unsecured revolving line of credit with a scheduled maturity date of May 9, 2018 (the “Maturity Date”). Proceeds of loans made under the Loan Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Loan Agreement in whole or in part at any time without premium or penalty. Certain of our existing and future material domestic subsidiaries are required to guaranty our obligations under the Loan Agreement. As of June 30, 2013, we had $50 million available for borrowings under this revolving line of credit.

The loans bear interest, at our option, at a base rate determined in accordance with the Loan Agreement, plus a spread of 0.0% to 0.5%, or a LIBOR rate plus a spread of 1.125% to 2.0%, in each case with such spread determined based on a ratio of consolidated indebtedness to EBITDA, determined in accordance with the Loan Agreement. Principal, together with all accrued and unpaid interest, is due and payable on the Maturity Date. We are also obligated to pay a quarterly commitment fee, payable in arrears, based on the available commitments at a rate of 0.175% to 0.300%, with such rate determined based on the ratio described above. The Loan Agreement contains customary affirmative and negative covenants. The affirmative covenants include, among other things, delivery of financial statements, compliance certificates and notices; payment of taxes and other obligations; maintenance of existence; maintenance of properties and insurance; and compliance with applicable laws and regulations. The negative covenants include, among other things, limitations on indebtedness, liens, mergers, consolidations, acquisitions and sales of assets, investments, changes in the nature of the business, affiliate transactions and certain restricted payments. The Loan Agreement also requires us to maintain a ratio of consolidated indebtedness to EBITDA equal to or less than 3.25 to 1.00, and a ratio of consolidated EBITDA to interest expense greater than or equal to 3.00 to 1.00, in each case determined in accordance with the Loan Agreement. As of June 30, 2013, we were in compliance with all covenants in the Loan Agreement.

The Loan Agreement contains customary events of default including, among other things, payment defaults, breaches of covenants or representations and warranties, cross-defaults with certain other indebtedness, bankruptcy and insolvency events, judgment defaults and change in our control, subject to grace periods in certain instances. Upon an event of default, the lender may declare all or a portion of the outstanding obligations payable by us to be immediately due and payable and exercise other rights and remedies provided for under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Loan Agreement at a per annum rate of interest equal to 2.00% above the otherwise applicable interest rate.

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Income Taxes

6 Months Ended

Jun. 30, 2013

Income Taxes [Abstract]

Income Taxes

Note 9 – Income taxes

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized.  

We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $22.3 million and $20.9 million of unrecognized tax benefits at June 30, 2013 and December 31, 2012, respectively, all of which would affect our effective income tax rate if recognized. We recorded a gross increase in unrecognized tax benefits of $386,000 and $927,000 for the three and six month periods ended June 30, 2013, respectively, as a result of tax positions taken during the period. Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of June 30, 2013, we had approximately $1.6 million accrued for interest related to uncertain tax positions. The tax years 2006 through 2012 remain open to examination by the major taxing jurisdictions to which we are subject.  

Our provision for income taxes reflected an effective tax rate of 23% for each of the three month periods ended June 30, 2013 and 2012, and of 10% and 22% for the six month periods ended June 30, 2013 and 2012, respectively. For the three and six month periods ended June 30, 2013, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses, profits in foreign jurisdictions with reduced income tax rates, the research and development tax credit, and a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit. For the three and six month periods ended June 30, 2012, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses and profits in foreign jurisdictions with reduced income tax rates.   

Our earnings in Hungary are subject to a statutory tax rate of 19%. The difference between this rate and the statutory U.S. rate of 35% resulted in income tax benefits of $1.5 million and $3.1 million for the three month periods ended June 30, 2013 and 2012, respectively, and $3.2 million and $5.2 million for the six month periods ended June 30, 2013 and 2012, respectively. No countries other than Hungary had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the Internal Revenue Service with regard to any foreign jurisdictions.

The tax position of our Hungarian operation continues to benefit from assets created by the restructuring of our operations in Hungary. In addition, our research and development activities in Hungary continue to benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. Partial release of the valuation allowance on assets from the restructuring and the enhanced tax deduction for research expenses resulted in income tax benefits of $2.3 million and $4.6 million for the three month periods ended June 30, 2013 and 2012, respectively, and $4.7 million and $7.7 million for the six month periods ended June 30, 2013 and 2012, respectively.

Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2027. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. As our Malaysia manufacturing operation is still in a start up phase, the tax holiday did not result in any income tax benefit for the three and six month periods ended June 30, 2013.

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Litigation

6 Months Ended

Jun. 30, 2013

Litigation [Abstract]

Litigation

Note 16 – Litigation  

We are not currently a party to any material litigation. However, in the ordinary course of our business, we are involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any future litigation or dispute.

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Commitments And Contingencies

6 Months Ended

Jun. 30, 2013

Commitments And Contingencies [Abstract]

Commitments And Contingencies

Note 14 – Commitments and Contingencies  

We offer a one-year limited warranty on most hardware products, with a two or three-year warranty on a subset of our hardware products, which is included in the sales price of many of our products. Provision is made for estimated future warranty costs at the time of the sale for the estimated costs that may be incurred under the basic limited warranty. Our estimate is based on historical experience and product sales during the period.  

The warranty reserve for the six month periods ended June 30, 2013 and 2012, respectively, was as follows:

		Six Months Ended June 30,
(In thousands)		(Unaudited)
		2013		2012
Balance at the beginning of the period	$	1,435	$	1,271
Accruals for warranties issued during the period		1,459		1,104
Settlements made (in cash or in kind) during the period		(1,392)		(1,070)
Balance at the end of the period	$	1,502	$	1,305

As of June 30, 2013, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $11 million over the next twelve months.  

As of June 30, 2013, we had outstanding guarantees for payment of customs and foreign grants totaling approximately $4.9 million, which are generally payable over the next twelve months.

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Document And Entity Information	6 Months Ended
	Jun. 30, 2013	Jul. 29, 2013
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2013
Entity Registrant Name	NATIONAL INSTRUMENTS CORP /DE/
Entity Central Index Key	0000935494
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		124,798,807

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Recently Issued Accounting Pronouncements

6 Months Ended

Jun. 30, 2013

Recently Issued Accounting Pronouncements [Abstract]

Recently Issued Accounting Pronouncements

Note 15 – Recently issued accounting pronouncements  

In January 2010, the FASB updated FASB ASC 820, Fair Value Measurements and Disclosures (FASB ASC 820) that requires additional disclosures and clarifies existing disclosures regarding fair value measurements. The additional disclosures include (i) transfers in and out of Levels 1 and 2 and (ii) activity in Level 3 fair value measurements. The update provides amendments that clarify existing disclosures on level of disaggregation and disclosures about inputs and valuation techniques. This update is effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosures about purchases, sales, issuances, and settlements in the roll forward of activity in Level 3 fair value measurements which were effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. We adopted the update on January 1, 2010 as required and subsequently adopted on January 1, 2011, the update surrounding disclosures on Level 3 fair value measurements and concluded it did not have a material impact on our consolidated financial position or results of operations. In May 2011, the FASB updated FASB ASC 820 that resulted in common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards (IFRSs). Some of the amendments clarify the FASB’s intent about the application of existing fair value measurement requirements. Other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The amendments are to be applied prospectively and are effective during interim and annual periods beginning after December 15, 2011. We adopted the update as required in the first quarter of 2012 and concluded it did not have a material impact on our consolidated financial position or results of operations.   

In September 2011, the FASB updated FASB ASC 350, Goodwill and Other (FASB ASC 350) that gives an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted the update as required in the first quarter of 2012 and concluded it did not have a material impact on our consolidated financial position or results of operations.

In February 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-02, Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income, which amends Accounting Standards Codification (“ASC”) 220, Comprehensive Income. The amended guidance requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component. Additionally, entities are required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The amended guidance does not change the current requirements for reporting net income or other comprehensive income. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. We adopted this update in the first quarter of 2013. The adoption of ASU No. 2013-02 did not have a significant impact on the Company’s consolidated financial statements, but did amend the disclosures for accumulated other comprehensive income reclassified into income.