Document and Entity Information Statement [Table] Statement [Line Items] Statement Stockholders' Equity Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Condensed Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Short-term Investments Short-term investments Total short-term investments Accounts Receivable, Net, Current Accounts receivable, net Inventory, Net Inventories Total inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Available-for-sale Securities, Debt Securities, Noncurrent Long-term investments Total long-term investments Property, Plant and Equipment, Net Property and equipment, net Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Other intangible assets, net Other Assets, Noncurrent Other assets, net Assets Total assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses The carrying amount of consideration received or receivable as of the balance sheet date, net of associated deferred costs, that were not recognized as income in conformity with GAAP and which are expected to be recognized as such within one year or the normal operating cycle, if longer. Deferred Income on Shipments to Distributors, Current Deferred income on shipments to distributors Accrued Income Taxes, Current Income taxes Liabilities, Current Total current liabilities Long-term Debt, Excluding Current Maturities Long-term debt Convertible Debt, Noncurrent Convertible debt Liabilities, Other than Long-term Debt, Noncurrent Other non-current liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock - $0.0001 par value; 10,000 shares authorized; no shares issued Common Stock, Value, Issued Common stock - $0.0001 par value; 250,000 shares authorized; 42,562 and 41,889 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss) Stockholders' Equity Attributable to Parent Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Condensed Consolidated Statements of Income Revenue, Net Revenues Cost of Goods Sold Cost of revenues Gross Profit Gross margin Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development Selling, General and Administrative Expense Selling, general and administrative Operating Expenses Operating expenses Operating Income (Loss) Operating income Nonoperating Income (Expense) [Abstract] Other income (expense): Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities income (expense) related to nonoperating activities, classified as other. Investment Income, Interest and Other Nonoperating Income (Expense) Interest income and other, net Amount of the cost of borrowed funds accounted for as interest expense or income from termination of an interest rate swap. Interest Expense Or Termination Credit Interest expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes Income Tax Expense (Benefit) Income tax benefit (provision) Provision for income taxes Excess tax benefit Net Income (Loss) Available to Common Stockholders, Basic Net income Net income Earnings Per Share Earnings per share: Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Shares used in computing basic earnings per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Shares used in computing diluted earnings per share (in shares) Condensed Consolidated Statements of Comprehensive Income Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss), before tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent [Abstract] Net changes to available-for-sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Unrealized gains (losses) arising during the period Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent [Abstract] Net changes to cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Unrealized gains (losses) arising during the period Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Reclassification for (gains) losses included in net income Reclassification of unrealized gains included in net income Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Other comprehensive income (loss), before tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Provision (benefit) for income taxes Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Operating Activities Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to cash provided by operating activities: Depreciation Depreciation of property and equipment The aggregate expense charged against earnings to allocate the cost of intangible and other assets in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Amortization of Intangibles and Other Assets Amortization of other intangible assets and other assets Amortization of Debt Issuance Costs and Discounts Amortization of debt discount and debt issuance costs Share-based Compensation Stock-based compensation expense Reductions (increase) in the entity's income taxes that arise when compensation cost (from share-based awards) recognized on the entity's tax return exceeds (decreases) compensation cost from share-based awards recognized on the income statement. This element increases (decreases) net cash provided by operating activities. Tax Benefit (Detriment) from Share Based Compensation Income tax shortfall from stock-based awards Deferred Income Taxes and Tax Credits Deferred income taxes Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued expenses The net change during the reporting period, excluding the portion taken into income, in the liability reflecting estimated income to be earned from product shipments to distributors. Increase (Decrease) in Deferred Income on Shipments to Distributors Deferred income on shipments to distributors Increase (Decrease) in Income Taxes Payable Income taxes Increase (Decrease) in Other Noncurrent Liabilities Other non-current liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Investing Activities Payments to Acquire Available-for-sale Securities, Debt Purchases of available-for-sale investments Proceeds from Sale and Maturity of Available-for-sale Securities Sales and maturities of available-for-sale investments Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments to Acquire Productive Assets Purchases of other assets Payments to Acquire Businesses, Net of Cash Acquired Acquisition of business, net of cash acquired Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Financing Activities Proceeds from Issuance of Long-term Debt Proceeds from issuance of long-term debt, net Repayments of Long-term Debt Payments on debt Payments for Repurchase of Common Stock Repurchases of common stock The amount of cash inflow (outflow) for issuance of common stock net of payments for employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Payments To Proceeds From Issuance Of Common Stock Net Of Tax Withholding For Share Based Compensation Payment of taxes withheld for vested stock awards Proceeds from Issuance of Common Stock Proceeds from the issuance of common stock Represents the payment for contingent consideration arrangements recognized in connection with a business acquisition. Business Acquisition Contingent Consideration Amount Paid Payment of acquisition-related contingent consideration Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Cash And Cash Equivalents Period Increase Decrease Increase in cash and cash equivalents Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Significant Accounting Policies Earnings Per Share [Text Block] Earnings Per Share Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Fair Value of Financial Instruments Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Financial Instruments Balance Sheet Details Supplemental Balance Sheet Disclosures [Text Block] Balance Sheet Details Acquisitions Business Combination Disclosure [Text Block] Acquisitions Debt Debt Disclosure [Text Block] Debt Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Income Taxes Income Tax Disclosure [Text Block] Income Taxes Use of Estimates, Policy [Policy Text Block] Use of Estimates Reclassification, Policy [Policy Text Block] Reclassifications Revenue Recognition, Policy [Policy Text Block] Revenue Recognition New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of computation of basic and diluted earnings per share Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Financial assets and liabilities measured at fair value on a recurring basis Investments Classified by Contractual Maturity Date [Table Text Block] Summarization of contractual underlying maturities of available-for-sale investments Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of available-for-sale investments in continuous unrealized loss position by length of time Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Summary of quantitative information about level 3 asset fair value measurements Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liability. Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Text Block] Summary of activity in Level 3 financial instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of derivative financial instrument Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of before-tax effect of derivative instruments in cash flow hedging relationships Schedule of Derivative Instruments Not Designated as Hedging Gain Loss in Statement of Financial Performance [TextBlock] Schedule of before-tax effect of derivative instruments not designated as hedging instruments Schedule of Inventory, Current [Table Text Block] Inventories Convertible Debt [Table Text Block] Summary of information about the equity and liability components of the convertible senior notes Tabular disclosure of interest expense related to debt. Interest Expense Related to Debt [Table Text Block] Schedule of components of interest expense Class of Treasury Stock [Table Text Block] Schedule of share repurchase programs Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Schedule of reclassifications out of accumulated other comprehensive income (loss) Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of stock-based compensation costs recognized in the Condensed Consolidated Statements of Income Information related to various accounting policies of the entity. Summary of Significant Accounting Policies [Table] Range [Axis] Range [Member] Range [Domain] Minimum [Member] Low end of range Maximum [Member] High end of range Summary of Significant Accounting Policies [Line Items] Basis of Presentation and Principles of Consolidation Fiscal Period Duration Length of fiscal year Disclosure of the number of days in each fiscal quarter for a 52-week fiscal year in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Number of Days in Fiscal Quarter 52 Week Year Number of days in each fiscal quarter for 52-week fiscal year New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Type Of Adoption [Member] Type of Adoption [Domain] Represents Accounting Standards Update 2016-09, Compensation - Stock Compensation (Topic 718). Accounting Standards Update201609 [Member] Accounting Standards Update 2016-09 - Compensation-Stock Compensation New Accounting Pronouncements or Change in Accounting Principle [Line Items] Recent Accounting Pronouncements Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Effect of dilutive securities: Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Stock options and other stock-based awards (in shares) Earnings Per Share, Basic and Diluted [Abstract] Earnings per share: Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Shares excluded from computation of diluted earning per share (in shares) Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements Recurring [Member] Assets and liabilities measured at fair value on recurring basis Measurement Basis [Axis] Portion At Fair Value Fair Value Disclosure [Member] Portion at Fair Value Measurement [Member] Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value Inputs Level2 [Member] Significant Other Observable Inputs (Level 2) Fair Value Inputs Level3 [Member] Significant Unobservable Inputs (Level 3) Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Money Market Funds [Member] Money market funds Corporate Debt Securities [Member] Corporate debt securities Auction Rate Securities [Member] Auction rate securities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Financial assets and liabilities measured at fair value on a recurring basis Cash and Cash Equivalents, Fair Value Disclosure Total cash equivalents Derivative Asset Derivative instruments Other Assets, Fair Value Disclosure Other assets, net Assets, Fair Value Disclosure Total assets at fair value Business Combination, Contingent Consideration, Liability, Noncurrent Contingent consideration, noncurrent Financial and Nonfinancial Liabilities, Fair Value Disclosure Total liabilities at fair value Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Line Items] Available-for-sale securities Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Cost Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due in one year or less, Cost This item represents debt securities, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are expected to mature after one year and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor as trading securities. Available For Sale Securities, Debt Maturities, after One Through Ten Years, Amortized Cost Due after one year through ten years, Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Due after ten years, Cost Available-for-sale Debt Securities, Amortized Cost Basis Total Cost Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Fair Value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due in one year or less, Fair Value This item represents the fair value of debt securities, which are expected to mature after one year and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor as trading securities. Available For Sale Securities, Debt Maturities, after One Through Ten Years, Fair Value Due after one year through ten years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Due after ten years, Fair Value Available-for-sale Securities, Debt Securities Total Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Continuous unrealized loss position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Fair value of available-for-sale securities, continuous loss position for less than twelve months Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Fair value of available-for-sale securities, continuous loss position for twelve months or longer Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Total fair value of available-for-sale securities, continuous loss position Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] Continuous unrealized loss position, Gross Unrealized Losses Available for Sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses Accumulated in Investments Available-for-sale securities, continuous loss position for less than 12 months, gross unrealized losses Available for Sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses Accumulated in Investments Available-for-sale securities, continuous loss position for 12 months or greater, gross unrealized losses Available for Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated in Investments Available-for-sale securities, total gross unrealized losses Other than Temporary Impairment Losses, Investments, Available-for-sale Securities [Abstract] Other than temporary impairment losses Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Other-than-temporary impairment losses Fair Value Inputs, Assets, Quantitative Information [Table] Asset Class [Axis] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Asset Class [Domain] Weighted Average [Member] Weighted Average Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Represents discounted cash flow used as valuation technique to measure fair value. Discounted Cash Flow Valuation Technique [Member] Discounted cash flow Fair Value Inputs, Assets, Quantitative Information [Line Items] Quantitative information for Level 3 Fair Value Measurements Assets Represents the estimated interest rates, used as an input to measure fair value. Fair Value Inputs, Estimated Interest Rates Estimated yield (as a percent) Represents the expected holding period, used as an input to measure fair value. Fair Value Inputs, Expected Holding Periods Expected holding period Represents the liquidity discount, used as an input to measure fair value. Fair Value Inputs, Liquidity Discount Estimated discount rate (as a percent) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Activity in Level 3 financial instruments Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair value assets reconciliation of changes Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Balance at the end of the period Balance at the beginning of the period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Gain included in other comprehensive income (loss) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Liability Class [Axis] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] Fair Value by Liability Class [Domain] Represents information pertaining to contingent consideration. Contingent Consideration [Member] Contingent consideration Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Reconciliation of changes in the fair values of Level 3 items Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair value liabilities reconciliation of changes Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Balance at the end of the period Balance at the beginning of the period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Issues Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Loss recognized in earnings This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in selling, general and administrative expense or other income. Such unrealized (holding) gains or losses relate to those liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). Fair Value Liabilities Measured on Recurring Basis Change in Unrealized Gain (Loss) Included in Selling General and Administrative Expense or Other Income Net loss for the period included in earnings attributable to contingent consideration held at the end of the period: Debt Instrument, Fair Value Disclosure Fair value of debt Derivative [Table] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash flow hedges Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Interest Rate Swap [Member] Interest rate swaps Derivative [Line Items] Notional amount Derivative, Notional Amount Original notional value Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Represents line item in the statement of financial position in which the fair value amounts of the derivative instruments are included. Other Assets Net [Member] Other assets, net Derivatives, Fair Value [Line Items] Derivative financial instrument Interest Rate Cash Flow Hedge Asset at Fair Value Fair value of interest rate swap Derivative Instruments, Gain (Loss) [Table] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Nondesignated [Member] Not Designated as Hedging Instrument Foreign Exchange Forward [Member] Foreign currency forward contracts Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Interest Expense [Member] Interest expense Primary financial statement caption encompassing Interest income and other, net. Interest Income And Other Net [Member] Interest income and other, net Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Gain (Loss) Recognized in OCI on Derivatives (Effective Portion) during period Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) during period Number Of Foreign Currency Forward Contract Held. Number of foreign currency forward contract held Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net Loss Recognized in Income Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property and Equipment Inventory, Net [Abstract] Inventories Inventory, Work in Process, Gross Work in progress Inventory, Finished Goods, Gross Finished goods Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Represents the acquired entity, Zentri, Inc, a private company. Zentri [Member] Zentri Business Acquisition [Line Items] Acquisition Business Combination, Consideration Transferred Purchase price of acquisition Payments to Acquire Businesses, Gross Cash consideration Business Combination, Contingent Consideration, Liability Earn-Out, fair value Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Potential maximum contingent consideration that could be paid Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] Purchase price allocation Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Intangible assets Business Acquisition, Goodwill, Expected Tax Deductible Amount Goodwill tax deductible Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Other net liabilities Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt Debt Instrument, Face Amount Principal amount of convertible senior notes sold in private placement Principal Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Stated interest rate Repayments of Long-term Lines of Credit Repayment of debt Debt Instrument, Convertible, Conversion Ratio Conversion rate Amount of principal considered for converting convertible debt into equity securities. Debt Instrument, Convertible, Conversion Ratio, Principal Amount Considered Principal amount of notes Debt Instrument, Convertible, Conversion Price Initial conversion price Debt Instrument, Convertible, Threshold Trading Days Number of trading days within 30 trading day period Debt Instrument, Convertible, Threshold Consecutive Trading Days Number of consecutive trading days Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Minimum amount the sales price of the Company's stock exceeds the conversion price (as a percent) Threshold number of specified consecutive business days that common stock price per $1,000 of convertible debt instruments must not exceed the threshold percentage within a specified consecutive trading period to trigger conversion feature. Debt Instrument Convertible Threshold Business Days Number of consecutive business days after the 10 consecutive trading day period Threshold number of specified consecutive trading days that common stock price per $1,000 of convertible debt instruments must not exceed the threshold percentage, and which occurs before the specified consecutive business period to trigger conversion feature. Debt Instrument Convertible Threshold Consecutive Trading Days 1 Number of consecutive trading days before the five consecutive business days Maximum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. Debt Instrument Convertible Threshold Percentage Of Stock Price Trigger 1 Maximum amount the sales price of the Company's stock exceeds the conversion price (as a percent) Debt Issuance Costs, Net Total Debt issuance costs No definition available. Convertible Debt, Liability Component [Abstract] Liability component Debt Instrument, Unamortized Discount Unamortized debt discount Unamortized Debt Issuance Expense Unamortized debt issuance costs Long-term Debt Net carrying amount No definition available. Convertible Debt, Equity Component [Abstract] Equity component Debt Instrument, Convertible, Carrying Amount of Equity Component Net carrying amount Debt Instrument, Interest Rate, Effective Percentage Effective interest rate Debt Instrument, Convertible, Remaining Discount Amortization Period Amortization of debt discount and debt issuance costs Interest Expense, Debt [Abstract] Interest expense related to the Notes Interest Expense, Debt, Excluding Amortization Contractual interest expense Amortization of Debt Discount (Premium) Amortization of debt discount Amortization of Debt Issuance Costs Amortization of debt issuance costs Interest Expense. Interest expense Interest Expense, Total Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] Loans Payable [Member] Term Loan Facility Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line Of Credit [Member] Credit Agreement Revolving Credit Facility [Member] Revolving Credit Facility An amended contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars. Amended Line Of Credit [Member] Amended Credit Agreement Debt arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount other than swingline loans. Revolving Credit Facility Other Than Swingline Loans [Member] Revolving credit facility, other than swingline loans Represents debt arrangement for term loan facilities, credit facilities, swingline and other loans. Term Loan Facility Revolving Credit Facility Swingline And Other Loans [Member] Term loan facility, revolving credit facility, swingline and other loans Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] The Federal Funds rate used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base Federal Funds [Member] Federal Funds The Eurodollar base rate used to calculate the variable interest rate of the debt instrument. Euro Dollar Base Rate [Member] Eurodollar base rate Eurodollar [Member] Eurodollar The base rate used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base Base Rate [Member] Base rate Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity Debt Instrument, Term Term of debt instrument Line of Credit Facility, Amount Outstanding Amount borrowed under the Amended Credit Agreement Repayments of Lines of Credit Repayment of credit facility amount Represents the maximum amount of the guarantees available through letters of credit. Letters of Credit Maximum Amount Sublimit on letters of credit Represents the maximum amount of the guarantees available through swingline loan. Swingline Loan Maximum Amount Sublimit on swingline loan Represents the amount that the borrowing capacity of the line of credit may be increased at the entity's option, subject to certain conditions, under the terms of the credit agreement. Line of Credit Facility Additional Capacity Increase Option Additional increase in borrowing capacity of the line of credit available at the entity's option Debt Instrument, Basis Spread on Variable Rate Interest rate added to the base rate (as a percent) Represents the maximum ratio of total debt to earnings before interest expense, income taxes and noncash items (such as depreciation, depletion and amortization expense, unrealized gains and losses on commodity derivatives, ceiling test write-downs, and goodwill impairments) permitted under credit facilities' covenants. Line of Credit Facility, Maximum Leverage Ratio Maximum leverage ratio Represents the minimum ratio of earnings before interest expense, income taxes and noncash items (such as depreciation, depletion and amortization expense, unrealized gains and losses on commodity derivatives, ceiling test write-downs, and goodwill impairments) to debt payment permitted under credit facilities' covenants. Line of Credit Facility, Minimum Fixed Charge Coverage Ratio Minimum fixed charge coverage ratio Stock Issued During Period, Shares, New Issues Number of shares of common stock issued Stock Repurchase Program, Authorized Amount Program Amount authorized to repurchase Stock Repurchased and Retired During Period, Shares Repurchase of common stock (in shares) Stock Repurchased and Retired During Period, Value Repurchase of common stock Reclassification out of Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] Unrealized Gain on Cash Flow Hedge Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification Out Of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification Out Of Accumulated Other Comprehensive Income [Member] Reclassifications From Accumulated Other Comprehensive Income (Loss) Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Amounts Reclassified from AOCI Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Cost Of Sales [Member] Cost of revenues Research And Development Expense [Member] Research and development Selling General And Administrative Expenses [Member] Selling, general and administrative Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Stock-based compensation costs Allocated Share-based Compensation Expense Share based compensation cost Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Income tax benefit Allocated Share-based Compensation Expense, Net of Tax Share based compensation cost after tax Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Total unrecognized compensation costs related to awards Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Weighted-average period of recognition of unrecognized compensation costs Schedule of Operating Leased Assets [Table] Legal Entity [Axis] Entity [Domain] Entity [Domain] Represents information concerning Cresta Technology Corporation. Cresta Technology [Member] Cresta Technology Operating Leased Assets [Line Items] Operating Leases Patent Litigation [Abstract] Patent Litigation Gain Contingency, Patents Allegedly Infringed upon, Number Number of patents allegedly infringed Number of creditors claiming to assume ownership of the Cresta Patents. Number Of Creditors Assuming Ownership Of Patents Number of creditors assuming ownership of Cresta Patents Number of patents whose validity the Company has challenged. Number Of Patents With Validity Challenged Number of patents with validity challenged Disclosure of information pertaining to income taxes. Income Taxes [Table] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Income Taxes [Line Items] Income Taxes An adjustment for government or taxing authority towards increase or decrease in taxable income as a result of reassessment. Adjustments To Taxable Income Excluding Interest and Penalties Adjustments to taxable income excluding interest and penalties Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective income tax rate reconciliation Effective Income Tax Rate Reconciliation, Percent Effective income tax rate (as a percent) Components of Deferred Tax Assets and Liabilities [Abstract] Components of deferred taxes Unrecognized Tax Benefits Gross unrecognized tax benefits Unrecognized Tax Benefits that Would Impact Effective Tax Rate. Gross unrecognized tax benefits which would affect the effective tax rate if recognized Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Significant (Increase) Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound Amount of estimated decrease in unrecognized tax benefits Scenario [Axis] Scenario Unspecified [Domain] Scenario, Unspecified [Domain] Scenario Adjustment [Member] Scenario, Adjustment Antidilutive Securities [Axis] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Treasury Stock [Member] Shares issued upon conversion of principal amount U S Government Debt Securities [Member] Government debt securities Convertible Notes Payable [Member] Convertible Senior Notes Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Information relating to convertible senior notes 1.375 percent. Convertible Senior Notes1.375 Percent [Member] 1.375% Convertible Senior Notes Geographical [Axis] Segment Geographical [Domain] Geographical [Domain] Information by Norwegian subsidiary geographical location. Norwegian [Member] Norwegian Tax Period [Axis] Tax Period [Domain] Tax Period [Domain] Tax Year2013 [Member] 2013