Document and Entity Information Document Information [Table] Statement [Line Items] Schedule II-Valuation and Qualifying Accounts Document Type Document Quarterly Report Document Transition Report Document Period End Date Securities Act File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Central Index Key Amendment Flag Consolidated Statements of Operations Statement [Table] Product and Service [Axis] Product and Service [Domain] Product [Member] Product Service or group of services that are sold by the entity. Services Revenues [Abstract] Revenue: Revenues Total revenue Revenue Cost of Revenue [Abstract] Less: Cost of Product and Service Sold Total cost of revenue Cost of revenue Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development Selling and Marketing Expense Sales and marketing General and Administrative Expense General and administrative Operating Expenses Total operating expenses Operating Income (Loss) Income from operations Nonoperating Income (Expense) [Abstract] Other income (expense): Investment Income, Interest Interest income Interest Expense, Nonoperating Interest expense Other Nonoperating Income (Expense) Other, net Nonoperating Income (Expense) Total other income (expense) Total other income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income taxes Income Tax Expense (Benefit) Income tax expense Income tax provision Net income Net income Earnings Per Share [Abstract] Net income per share: Earnings Per Share, Basic Basic Earnings Per Share, Diluted Diluted Weighted Average Number of Shares Outstanding, Diluted [Abstract] Shares used in computing net income per share: Weighted Average Number of Shares Outstanding, Basic Basic weighted average shares of common stock Weighted average shares of common stock outstanding used in computing basic income per share Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average shares of common stock Weighted average shares of common stock used in computing diluted net income per share Consolidated Statements of Comprehensive Income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss) income: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Amortization of actuarial net gain and other adjustments from pension plan, net of tax Change in pension obligation Debt Securities, Available-for-Sale, Unrealized Gain Unrealized (losses) gains on available-for-sale investments Other Comprehensive Income (Loss), Net of Tax Total other comprehensive (loss) income Other comprehensive income and reclassifications Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Statement of Financial Position [Abstract] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash and cash equivalents Short-Term Investments Short-term investments (U.S. Government Securities and Agency Investments) Short-term investments Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net Inventory, Net Inventories, net Inventories, net Prepaid Taxes Prepaid income taxes Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property, plant and equipment, net Operating Lease, Right-of-Use Asset Operating lease assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Finance lease assets, net Finance lease assets Restricted Cash and Cash Equivalent, Noncurrent Long-term restricted cash Deferred Income Tax Assets, Net Deferred income taxes Debt Securities, Available-for-Sale, Noncurrent Long-term investments Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Employee-related Liabilities, Current Accrued compensation Product Warranty Accrual, Current Warranty Amount classified as current Contract with Customer, Liability, Current Deferred revenue Finance Lease, Liability, Current Finance liabilities current Current portion of finance lease obligation Other Liabilities, Current Other current liabilities Liabilities, Current Total current liabilities Finance Lease, Liability, Noncurrent Finance liabilities noncurrent Long-term finance lease obligation Contract with Customer, Liability, Noncurrent Long-term deferred revenue Other Liabilities, Noncurrent Other long-term liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (Note 17) Equity, Attributable to Parent [Abstract] Stockholders' equity: Common Stock, Value, Outstanding Common stock, $0.001 par value, 75,000 shares authorized; 31,418 shares issued and outstanding at June 30, 2025; 32,365 shares issued and outstanding at December 31, 2024 Additional Paid in Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Equity, Attributable to Parent Balance Balance Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity 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 Consolidated Statements of Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Additional Paid-in Capital Retained Earnings [Member] Retained Earnings AOCI Attributable to Parent [Member] Accumulated Other Comprehensive (Loss) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Shares, Outstanding Balance (in shares) Balance (in shares) Stock Issued During Period, Value, Employee Stock Purchase Plan Issuance of stock under Employee Stock Purchase Plan Stock Issued During Period, Shares, Employee Stock Purchase Plans Issuance of stock under Employee Stock Purchase Plan (in shares) Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance of common stock on restricted stock units, net of shares withheld Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of common stock on restricted stock units, net of shares withheld (in shares) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense Stock Repurchased and Retired During Period, Value Repurchase of common stock Stock Repurchased During Period, Shares Repurchase of common stock (in shares) Consolidated Statements of Cash Flows Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Deferred Income Tax Expense (Benefit) Deferred income taxes Share-Based Payment Arrangement, Noncash Expense Stock-based compensation expense Accounts Receivable, Credit Loss Expense (Reversal) Provision for doubtful accounts Amount of provision related to write-down of excess and obsolete inventory. Provision for excess and obsolete inventory Provision for excess and obsolete inventory Accretion (Amortization) of Discounts and Premiums, Investments Accretion of discounts and premiums on short-term and long-term investments Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Unrealized currency (gain) loss on foreign denominated transactions Unrealized Gain (Loss) on Derivatives Mark-to-market adjustment on forward exchange contracts Mark-to-market adjustment on forward exchange contracts Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, 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 current assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and other current liabilities Increase (Decrease) in Contract with Customer, Liability Deferred revenue Increase (Decrease) in Income Taxes Payable Income taxes Increase (Decrease) in Other Operating Assets and Liabilities, Net Other assets and liabilities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by operating activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash flows from investing activities Payments to Acquire Property, Plant, and Equipment Expenditures for property, plant and equipment and capitalized software Payments to Acquire Investments Purchase of short-term and long-term investments Proceeds from Maturities, Prepayments and Calls of Short-Term Investments Maturities and sales of short-term investments Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by (used in) investing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities The net cash inflow or outflow from cash and cash items that are not available for withdrawal or usage. Net Settlement On Restricted Stock Grants Net settlement on restricted stock grants Payments for Repurchase of Common Stock Repurchase of common stock Proceeds from Stock Plans Proceeds from Employee Stock Purchase Plan purchases Finance Lease, Principal Payments Principal payments on finance lease obligation Financing cash outflows from finance leases Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash used in financing activities Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Effect of exchange rate changes on cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash at beginning of period Total cash, cash equivalents and restricted cash Nature of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Nature of Business Significant Accounting Policies Significant Accounting Policies [Text Block] Significant Accounting Policies Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Stock-Based Compensation Leases The entire disclosure of information about leases. Lease Disclosure [Text Block] Leases Revenue Revenue from Contract with Customer [Text Block] Revenue Receivables and Allowances for Credit Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Receivables and Allowances for Credit Losses Earnings Per Share [Text Block] Computation of Net Earnings per Share Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Accumulated Other Comprehensive Loss N/A Cash, cash equivalents and restricted cash The entire disclosure of cash, cash equivalents and restricted cash. Cash Cash Equivalents And Restricted Cash [Text Block] Cash, cash equivalents and restricted cash Inventories, net Inventory Disclosure [Text Block] Inventories, net Product Warranty Product Warranty Disclosure [Text Block] Product Warranty Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Financing Arrangements Debt Disclosure [Text Block] Financing Arrangements Income Taxes Income Tax Disclosure [Text Block] Income Taxes Concentration of Risk Concentration Risk Disclosure [Text Block] Concentration of Risk Share Repurchase Equity [Text Block] Share Repurchase Contingencies Commitments and Contingencies Disclosure [Text Block] Contingencies Business Segment Segment Reporting Disclosure [Text Block] Business Segment Accounting Standards Update and Change in Accounting Principle [Text Block] Recent Accounting Guidance The tabular disclosure of lease balance sheet. Lease Balance Sheet Disclosure [Table Text Block] Schedule of operating and finance lease right-of-use assets and related lease obligations Lease, Cost [Table Text Block] Schedule of lease costs Tabular disclosure of undiscounted cash flows of lessee's operating lease liability and finance lease liability. Operating And Finance Lease Liability Maturity [Table Text Block] Schedule of future minimum operating and finance leases The tabular disclosure of lease quantitative information. Lease Quantitative Disclosure [Table Text Block] Schedule of weighted-average remaining lease term and discount rates The tabular disclosure of lease cash flow information. Lease Cash Flow Information Disclosure [Table Text Block] Schedule of cash outflows by lease type Tabular disclosure of revenue from external customers by discipline areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. Revenue From External Customers By Discipline Areas Table Text Block Schedule of revenue by discipline Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of revenue by geographic markets Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Schedule of Contract liabilities Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of components of net income per share Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of changes in accumulated other comprehensive loss, net of tax Tabular disclosure for cash, cash equivalents and restricted cash. Cash Cash Equivalents And Restricted Cash [Table Text Block] Schedule of reconciliation of cash, cash equivalents and restricted cash Schedule of Inventory, Current [Table Text Block] Schedule of components of inventories Schedule of Product Warranty Liability [Table Text Block] Schedule of product warranty liability Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Company's assets and liabilities by level within the fair value hierarchy Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of contractual maturities of our cash equivalents and investments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of company's single operating segment Antidilutive Security, Excluded EPS Calculation [Table] Financial Instrument [Axis] Financial Instruments [Domain] Short-Term Investments [Member] Short-term investments Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of beyond one year from the date of the balance sheet. Long-Term Investments [Member] Long-term investments Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Debt Securities, Available-for-Sale, Amortized Cost, Current Amortized cost of available-for-sale investment Debt Securities, Available-for-Sale, Measurement Input Fair value of the available-for-sale investment Debt Securities, Available-for-Sale, Allowance for Credit Loss Allowances for credit loss Proceeds from Sale of Held-to-Maturity Securities Proceeds from sale of held-to-maturity securities Debt Securities, Available-for-Sale, Unrealized Loss Unrealized loss on available-for-sale investments Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Sale of Stock [Axis] Sale of Stock [Domain] Employee Stock [Member] 2020 Employee Stock Purchase Plan Restricted Stock Units (RSUs) [Member] Restricted Stock Units Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Stock Award Plans and Stock-Based Compensation Share-Based Payment Arrangement, Expense Stock-based compensation expense Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercise of stock options (in shares) Lessee, Lease, Description [Table] Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Lessee, Lease, Description [Line Items] Lease Lessee, Operating Lease, Existence of Option to Extend [true false] Option to extend Lessee, Operating Lease, Renewal Term Renewal term Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Amount of lessee's right to use underlying asset under operating and finance lease. Operating And Finance Lease, Right-of-Use Asset Total leased assets Operating Lease, Liability, Current Operating liabilities current Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Noncurrent Operating liabilities noncurrent Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Present value of lessee's discounted obligation for lease payments from operating and finance lease. Operating and Finance Lease, Liability Total lease liabilities Total lease liabilities Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] The cumulative amount of depreciation of finance leased assets. Finance Lease, Accumulated Depreciation Finance lease, accumulated depreciation Prepaid Rent Prepaid financing costs Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Domain] Represents information pertaining to product or service member. Product / services* Research and Development Expense [Member] Research and development Selling and Marketing Expense [Member] Sales and marketing* General and Administrative Expense [Member] General and administrative* Lease, Cost [Abstract] Lease cost Operating Lease, Cost Total operating lease cost Finance Lease, Right-of-Use Asset, Amortization Depreciation of leased assets Finance Lease, Interest Expense Interest on lease liabilities Amount of finance lease cost recognized by lessee for lease contract. Finance Lease Cost Total finance lease cost Lease, Cost Total lease cost Amount of short-term and variable lease cost. Short-term And Variable Lease, Cost Short-term lease and variable lease costs Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Future minimum lease payments finance lease Finance Lease, Liability, to be Paid, Remainder of Fiscal Year 2025 Finance Lease, Liability, to be Paid, Year One 2026 Finance Lease, Liability, to be Paid, Year Two 2027 Finance Lease, Liability, to be Paid, Year Three 2028 Finance Lease, Liability, to be Paid, Year Four 2029 Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Finance Lease Liability Payments Due After Year Four Thereafter Finance Lease, Liability, to be Paid Total lease payments Finance Lease, Liability, Undiscounted Excess Amount Less interest portion Finance Lease, Liability Finance lease obligations Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Future minimum lease payments operating lease Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2025 Lessee, Operating Lease, Liability, to be Paid, Year One 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four 2029 Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Lessee Operating Lease Liability Payments Due After Year Four Thereafter Lessee, Operating Lease, Liability, to be Paid Total lease payments Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less interest portion Operating Lease, Liability Operating lease obligations n/a. Finance And Operating Lease Liabilities Payments Due [Abstract] Future minimum lease payments finance and operating lease Amount of lessee's undiscounted obligation for lease payments for finance and operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year. Lessee Operating And Finance Lease Liability Payments Remainder Of Fiscal Year 2025 Amount of lessee operating and finance lease liability payments due next twelve months. Lessee Operating And Finance Lease Liability Payments Due Next Twelve Months 2026 Amount of lessee's undiscounted obligation for lease payments for finance and operating lease, due in second fiscal year following latest fiscal year. Lessee Operating And Finance Lease Liability Payments Due Year Two 2027 Amount of lessee's undiscounted obligation for lease payments for finance and operating lease, due in third fiscal year following latest fiscal year. Lessee Operating And Finance Lease Liability Payments Due Year Three 2028 Amount of lessee's undiscounted obligation for lease payments for finance and operating lease, due in fourth fiscal year following latest fiscal year. Lessee Operating And Finance Lease Liability Payments Due Year Four 2029 Amount of lessee's undiscounted obligation for lease payments for finance and operating lease, due after fourth fiscal year following latest fiscal year. Lessee Operating And Finance Lease Liability Payments Due After Year Four Thereafter Amount of lessee's undiscounted obligation for lease payments for finance and operating lease. Lessee Operating And Finance Lease Liability Payments Due Total lease payments Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance and operating lease. Lessee Operating And Finance Lease Liability Undiscounted Excess Amount Less interest portion n/a. Weighted Average Remaining Lease Term And Discount Rate [Abstract] Lease term and discount rate Lessee, Finance Lease, Term of Contract Finance lease term Lessee, Operating Lease, Term of Contract Lease term Operating lease term Operating Lease, Weighted Average Remaining Lease Term Operating leases -Weighted-average remaining lease term (in years) Finance Lease, Weighted Average Remaining Lease Term Finance leases - Weighted-average remaining lease term (in years) Operating Lease, Weighted Average Discount Rate, Percent Operating leases - Weighted-average discount rate Finance Lease, Weighted Average Discount Rate, Percent Finance leases - Weighted-average discount rate Operating Lease, Payments Operating cash outflows from operating leases Finance Lease, Interest Payment on Liability Operating cash outflows from finance leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Operating lease assets obtained in exchange for operating lease liabilities Disaggregation of Revenue [Table] Represents information pertaining to revenue arising from the sale of new systems, a product line of the entity. Systems Represents information pertaining to Aftermarket. Aftermarket Geographical [Axis] Geographical [Domain] North America [Member] North America Asia Pacific [Member] Asia Pacific Europe [Member] Europe Disaggregation of Revenue [Line Items] Disaggregation of Revenue Revenue from Contract with Customer, Excluding Assessed Tax Total Revenue Contract with Customer, Liability Balance, end of the period Balance, beginning of the period Contract liabilities The amount of deferral of revenue in obligation to transfer good or service to customer for which consideration from customer has been received or is due. Contract with Customer, Liability, Deferral Of Revenue Deferral of revenue Other adjustments to amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Contract with Customer, Liability, Other Adjustments Other adjustments Contract with Customer, Liability, Revenue Recognized Recognition of deferred revenue Represents the percentage of payment terms due upon shipment of the system. Percentage of Payment Upon Shipment of Tool Payment upon shipment of the system, as a percent Represents the percentage of payment terms due upon acceptance. Percentage of Payment Upon Installation Payment upon acceptance, as a percent Represents the the pre-shipment deposit as a percent. Percentage Of Pre Shipment Deposit Pre-shipment deposit, as a percent Represents the period for payment upon delivery of parts. Period of Payment Upon Delivery of Parts Payment upon delivery of parts, period Accounts Receivable, Allowance for Credit Loss, Current Allowance for credit losses Financing Receivable, Allowance for Credit Loss, Recovery Recoveries Provision for Loan, Lease, and Other Losses Provision for credit losses n/a Earnings Per Share, Details, Other Disclosures [Abstract] Computation of Net Earnings per Share Net Income (Loss) Available to Common Stockholders, Basic Net income available to common stockholders Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Incremental options and RSUs n/a Earnings Per Share Detail [Abstract] Net income per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive common equivalent shares excluded from calculation Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Foreign currency Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Defined benefit pension plan AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Unrealized gains on available-for-sale investments Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent, Net of Tax [Roll Forward] Changes in accumulated other comprehensive (loss) income, net of tax Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Restricted Cash and Cash Equivalent Long-term restricted Cash Security Deposit Security deposit The amount of a letter of credit for custom purposes. Deposit relating to customer purposes Letter of credit for custom purposes Letter of credit associated with workers' compensation. Letter of Credit Associated with Workers Compensation Letter of credit related to workers' compensation insurance The amount of deposits relating customs activity. Deposit relating to customs activity Deposit related to customs activity Inventory, Current [Table] Inventory [Line Items] Inventories, net Inventory, Raw Materials, Net of Reserves Raw materials Inventory, Work in Process, Net of Reserves Work in process Inventory, Finished Goods, Net of Reserves Finished goods (completed systems) Represents the period for which the warranty is offered for the products sold. Product Warranty Period Product warranty period Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Changes in standard product warranty liability Standard and Extended Product Warranty Accrual Balance at end of period Balance at beginning of year Total warranty liability Standard and Extended Product Warranty Accrual, Increase for Warranties Issued Warranties issued during the period Standard and Extended Product Warranty Accrual, Decrease for Payments Settlements made during the period Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties Changes in estimate of liability for pre-existing warranties during the period Standard and Extended Product Warranty Accrual, Balance Sheet Classification [Abstract] Product warranty classification Product Warranty Accrual, Noncurrent Amount classified as long-term (within other long-term liabilities) Fair Value, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Domain] Fair Value, Recurring [Member] Recurring Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value, Inputs, Level 2 [Member] Level 2 Asset Class [Axis] Asset Class [Domain] Includes fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, United States government securities, certificates of deposit, and other highly liquid securities including Agency investments, all of which are considered cash equivalents. Money market funds, US Government Securities and Agency Investments Money market funds, U.S. Government Securities and Agency Investments US Treasury and Government [Member] U.S. Government Securities and Agency Investments Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Forward Contracts [Member] Forward exchange contracts Measurement Basis [Axis] Portion at Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Estimate of fair value measurement Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Measurements Cash and Cash Equivalents, Fair Value Disclosure Cash equivalents (money market funds, U.S. Government Securities and Agency Investments) Long-Term Investments Long-term investments (U.S. Government Securities and Agency Investments) Fair Value, Net Asset (Liability) Total Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Due within one year Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Two Due after one year through two years Debt Securities, Available-for-Sale, Amortized Cost Total Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Due within one year Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Two Due after one year through two years Debt Securities, Available-for-Sale, Current Total Schedule of Long-Term Debt Instruments [Table] Counterparty Name [Axis] Counterparty Name [Domain] Represents information pertaining to UBS Bank USA. UBS Bank [Member] UBS Bank USA Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Building [Member] Building Debt Instrument [Line Items] Financing Arrangements Proceeds from Sale, Property, Held-for-Sale Proceeds from sale of corporate headquarters Deferred Tax Asset, Valuation Allowance [Table] Valuation Allowance [Line Items] Valuation allowance Amount of increase and decrease in current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Increase (Decrease) In Income Tax Expense (Benefit) Increase (decrease) in income tax expense Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Statutory income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Effective Federal income tax rate Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Revenue Benchmark [Member] Revenue Accounts Receivable [Member] Accounts Receivable Concentration Risk Type [Axis] Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer concentration risk Credit Concentration Risk [Member] Credit concentration risk Customer [Axis] Customer [Domain] Represents one customer on whom the entity significantly relies giving rise to the largest single concentration risk. First customer Represents one customer on whom the entity significantly relies giving rise to the second largest single concentration risk. Second customer Concentration Risk [Line Items] Concentration of Risk Represents the number of customers on whom the entity significantly relies giving rise to concentration risk. Concentration Risk Number of Customers Number of customers Concentration Risk, Percentage Percentage of concentration risk Share Repurchase Program, Authorized, Amount Share repurchase program common stock authorized amount Treasury Stock, Shares, Acquired Number of shares repurchased Shares Acquired, Average Cost Per Share Average cost Number of Reportable Segments Number of business segments Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expense Schedule of Segment Reporting Information, by Segment [Table] Segments [Axis] Segments [Domain] Represents information pertaining to single reportable segment. Single Reportable Segment [Member] Single operating segment Consolidation Items [Axis] Consolidation Items [Domain] Operating Segments [Member] Operating segments Segment Reporting Information [Line Items]