Goodwill and Intangible Assets Disclosure [Abstract]
Estimated amortization expense
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018 – remaining period
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Acquired intangibles, net
Finite-Lived Intangible Assets, Net
Document and Entity Information [Abstract]
Document and Entity information.
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
Amendment Flag
Amendment Flag
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current Assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Short-term investments
Short-term Investments
Receivables, net
Receivables, Net, Current
Inventories
Inventory, Net
Prepaid expenses and other
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property, plant and equipment, net of accumulated depreciation of $677,737 and $658,377, respectively
Property, Plant and Equipment, Net
Goodwill
Goodwill
Acquired intangibles, net
Intangible Assets, Net (Excluding Goodwill)
Long-term receivables
Accounts Receivable, Net, Noncurrent
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Current Liabilities:
Liabilities, Current [Abstract]
Revolving credit facility
Line of Credit, Current
Current portion of long-term debt
Long-term Debt, Current Maturities
Accounts payable and accrued liabilities
Accounts Payable and Accrued Liabilities, Current
Current portion of deferred revenue
Deferred Revenue, Current
Total current liabilities
Liabilities, Current
Long-Term Liabilities:
Liabilities, Noncurrent [Abstract]
Long-term portion of deferred revenue
Deferred Revenue, Noncurrent
Long-term debt
Unsecured Long-term Debt, Noncurrent
Other long-term liabilities
Other Liabilities, Noncurrent
Total long-term liabilities
Liabilities, Noncurrent
Commitments and contingencies
Commitments and Contingencies
Stockholders' Equity:
Stockholders' Equity Attributable to Parent [Abstract]
Common stock and capital in excess of par value
Common Stocks, Including Additional Paid in Capital
Treasury stock, at cost
Treasury Stock, Value
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Class of Stock Disclosures [Abstract]
Authorized amount
Stock Repurchase Program, Authorized Amount
Remaining authorized repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Shares repurchased
Treasury Stock, Shares, Acquired
Total cost of repurchased shares
Treasury Stock, Value, Acquired, Cost Method
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive loss, net of tax
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Segment Reporting [Abstract]
SEGMENT REPORTING
Segment Reporting Disclosure [Text Block]
Accounts Receivable and Allowances for Doubtful Accounts (Textual) [Abstract]
Accounts receivable and allowances for doubtful accounts.
Percentage of receivables, net attributable to single customer
Percentage of Company's Receivables Net and Installment Contract Receivables Net Attributable to Single Customer
Percentage of Company's receivables net and installment contract receivables net attributable to single customer.
Number of customers with receivables balance greater than ten percent of total balance
Number of Customers with Accounts Receivable and Installment Contract Receivable Balance Greater than Ten Percent of Balance
Number of customers with accounts receivable and installment contract receivable balance greater than ten percent of total balance.
Fair Value Disclosures [Abstract]
Fair value of financial assets and liabilities
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Revenue from Contract with Customer [Abstract]
Revenue from External Customers by Products and Services
Revenue from External Customers by Products and Services [Table Text Block]
Contract Balances
Contract Assets and Deferred Revenue [Table Text Block]
[Table Text Block] for Contract Assets and Deferred Revenue [Table]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2014-09
Accounting Standards Update 2014-09 [Member]
Initial Application Period Cumulative Effect Transition [Axis]
Initial Application Period Cumulative Effect Transition [Axis]
Initial Application Period Cumulative Effect Transition [Domain]
Initial Application Period Cumulative Effect Transition [Domain]
Adjustments
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Balances under Prior GAAP
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Statement of Financial Position [Abstract]
Receivables, net
Prepaid expenses and other
Other assets
Current portion of deferred revenue
Long-term portion of deferred revenue
Retained earnings
Accumulated other comprehensive income
Income Statement [Abstract]
Income Statement [Abstract]
Product and maintenance revenue
Product and maintenance revenue
Product and maintenance revenue
Services revenue
Technology Services Revenue
Cost of product and maintenance
Cost of Product and Maintenance
Cost of Product and Maintenance
Marketing and sales expense
Selling and Marketing Expense
Provision for income taxes
Income Tax Expense (Benefit)
Net income
Net Income (Loss) Attributable to Parent
Net income per share - basic
Earnings Per Share, Basic
Net income per share - diluted
Earnings Per Share, Diluted
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Receivables
Increase (Decrease) in Accounts and Other Receivables
Prepaid expenses and other
Increase (Decrease) in Prepaid Expense and Other Assets
Other assets
Increase (Decrease) in Other Operating Assets
Accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Deferred revenue
Increase (Decrease) in Deferred Revenue
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Accounts Payable and Accrued Liabilities [Member]
Accounts Payable and Accrued Liabilities [Member]
Other Long Term Liabilities [Member]
Other Long Term Liabilities [Member]
Other long term liabilities.
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve
Restructuring Reserve
Debt Disclosure [Abstract]
DEBT
Debt Disclosure [Text Block]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Existing Technology [Member]
Existing Technology [Member]
Existing technology.
Agreements and Relationships [Member]
Agreements and Relationship [Member]
Agreements and relationship.
Tradenames Trademarks And Patents [Member]
Tradename Trademark and Patents [Member]
Tradenames trademarks and patents.
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Finite-Lived Intangible Assets, Net [Abstract]
Gross carrying amount
Finite-Lived Intangible Assets, Gross
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
In-process technology
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Intangible Assets, Gross (Excluding Goodwill)
Intangible Assets, Gross (Excluding Goodwill)
Intangible Assets, Net (Excluding Goodwill)
Revenue from External Customers by Products and Services [Table]
Revenue from External Customers by Products and Services [Table]
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Functional Verification, including Emulation and Prototyping Hardware
Functional Verification, including Emulation and Prototyping Hardware [Member]
Functional Verification, including Emulation and Prototyping Hardware [Member]
Digital IC Design and Signoff
Digital IC Design and Signoff [Member]
Digital IC Design and Signoff [Member]
Custom IC Design
Custom IC Design [Member]
Custom IC Design [Member]
System Interconnect and Analysis
System Interconnect and Analysis [Member]
System Interconnect and Analysis [Member]
IP
IP [Member]
IP [Member]
Revenue from External Customer [Line Items]
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group
Percentage of Product and Maintenance Revenue by Product Group
Percentage of Product and Maintenance Revenue by Product Group
Cash, Cash Equivalents, and Short-term Investments [Abstract]
Summary of cash, cash equivalents and short-term investments
Cash, Cash Equivalents and Investments [Table Text Block]
Summary of cash and cash equivalents
Schedule of Cash and Cash Equivalents [Table Text Block]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Fair Value Measurements, Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements, Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value Measurements, Level 3 [Member]
Fair Value, Inputs, Level 3 [Member]
Asset Class [Axis]
Asset Class [Axis]
Fair Value by Asset Class [Domain]
Asset Class [Domain]
Money market funds [Member]
Money Market Funds [Member]
Marketable Equity Securities
Marketable Equity Securities [Member]
Marketable equity securities.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets and liabilities
Fair Value Certain Financial Assets and Liabilities [Abstract]
Fair value certain financial assets and liabilities.
Assets
Assets, Fair Value Disclosure [Abstract]
Cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Short-term investments:
Short-term Investments [Abstract]
Marketable equity securities
Marketable Securities, Equity Securities, Current
Trading securities held in Non-Qualified Deferred Compensation plan, or NQDC
Deferred Compensation Plan Assets
Foreign Currency Contract, Asset, Fair Value Disclosure
Foreign Currency Contract, Asset, Fair Value Disclosure
Total Assets
Assets, Fair Value Disclosure
Liabilities
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency exchange contracts
Foreign Currency Contracts, Liability, Fair Value Disclosure
Receivables [Abstract]
Current and long-term accounts receivable balances
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Income Tax Disclosure [Abstract]
INCOME TAXES
Income Tax Disclosure [Text Block]
Statement of Comprehensive Income [Abstract]
Other comprehensive income (loss), net of tax effects:
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Changes in unrealized holding gains or losses on available-for-sale securities, net of reclassification adjustment for realized gains and losses
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Changes in defined benefit plan liabilities
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Total other comprehensive income (loss), net of tax effects
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Changes in the carrying amount of goodwill
Goodwill [Roll Forward]
Balance as of December 30, 2017
Effect of foreign currency translation
Goodwill, Foreign Currency Translation Gain (Loss)
Balance as of June 30, 2018
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
Income Tax Examination [Table]
Income Tax Examination [Table]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Scenario, Forecast [Member]
Scenario, Forecast [Member]
Income Tax Examination [Line Items]
Income Tax Examination [Line Items]
Provision for income taxes
Tax benefit of stock-based compensation
Excess Tax Benefit of Stock-Based Compensation, Component of Provision for Income Taxes
Excess Tax Benefit of Stock-Based Compensation, Component of Provision for Income Taxes
Federal statutory income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Revision to provisional repatriation transition tax expense for Tax Cuts and Jobs Act
Revision to Tax Cuts and Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit
Revision to Tax Cuts and Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Cost of product and maintenance
Cost of Sales [Member]
Cost of services
Cost of Services [Member]
Cost of services.
Marketing and sales
Selling and Marketing Expense [Member]
Research and development
Research and Development Expense [Member]
General and administrative
General and Administrative Expense [Member]
Share-based compensation expense and allocation by cost [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based Compensation
Share-based Compensation
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Long-term Debt [Member]
Long-term Debt [Member]
Senior Notes [Member]
Senior Notes [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Term Loan Due 2019 [Member]
Term Loan Due Twenty-Nineteen [Member]
Term Loan Due Twenty-Nineteen [Member]
Senior Notes Due 2024 [Member]
Senior Notes Due Twenty-Twenty Four [Member]
Senior Notes Due Twenty-Twenty Four [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
London Interbank Offered Rate (LIBOR) [Member]
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Aggregate principal amount, issued
Debt Instrument, Face Amount
Debt instrument, term
Debt Instrument, Term
Debt instrument, maturity date
Debt Instrument, Maturity Date
Debt instrument, interest rate spread
Debt Instrument, Basis Spread on Variable Rate
Debt instrument, interest rate at period end
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate
Debt instrument, covenant, debt to EBITDA ratio
Debt Instrument, Covenant, Debt to EBITDA Ratio
Debt Instrument, Covenant, Debt to EBITDA Ratio
Debt instrument, covenant, debt to EBITDA ratio after step up triggered by acquisition
Debt Instrument, Covenant, Debt to EBITDA Ratio after step up triggered by acquisition
Debt Instrument, Covenant, Debt to EBITDA Ratio after step up triggered by acquisition
Debt instrument, covenant, required business acquisition consideration, minimum
Debt Instrument, Covenant, Required Business Acquisition Consideration, Minimum
Debt Instrument, Covenant, Required Business Acquisition Consideration, Minimum
Debt instrument, covenant, pro forma leverage ratio
Debt Instrument, Covenant, Pro Forma Leverage Ratio
Debt Instrument, Covenant, Pro Forma Leverage Ratio
Stated interest rate of Senior Notes
Debt Instrument, Interest Rate, Stated Percentage
Proceeds from Senior Notes, net
Proceeds from Debt, Net of Issuance Costs
Unamortized discount
Debt Instrument, Unamortized Discount
Debt issuance costs
Unamortized Debt Issuance Expense
Current and long-term receivables balances
Accounts Receivable, Net [Abstract]
Accounts receivable
Accounts Receivable, Gross, Current
Unbilled accounts receivable
Unbilled Contracts Receivable
Total receivables
Accounts receivable and installment contract receivables
Accounts receivable and installment contract receivables
Less allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Total receivables, net
Accounts Receivable Net Current and Noncurrent
Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of current and noncurrent accounts receivable due from other than related parties.
CASH, CASH EQUIVALENTS AND INVESTMENTS
Cash, Cash Equivalents, and Marketable Securities [Text Block]
BASIS OF PRESENTATION
Basis of Presentation and Significant Accounting Policies [Text Block]
Restructuring Type [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Employee Severance and Benefits [Member]
Employee Severance [Member]
Excess Facilities [Member]
Facility Closing [Member]
Beginning balance
Restructuring and other credits
Restructuring Reserve, Accrual Adjustment
Cash payments
Payments for Restructuring
Effect of foreign currency translation
Restructuring Reserve, Foreign Currency Translation Gain (Loss)
Ending balance
Summary of debt outstanding
Schedule of Debt [Table Text Block]
STOCK-BASED COMPENSATION
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Earnings Per Share [Abstract]
Basic and diluted net income per share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Potential shares of Cadence's common stock excluded
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Asset Class [Domain]
Accounting Standards Update 2016-01
Accounting Standards Update 2016-01 [Member]
Accounting Standards Update 2016-16
Accounting Standards Update 2016-16 [Member]
Gain on investments, net
Gain (Loss) on Investments
Non-marketable investments
Securities Owned Not Readily Marketable
Net income
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Base Rate [Member]
Base Rate [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Credit facility, current borrowing capacity
Line of Credit Facility, Current Borrowing Capacity
Credit facility additional borrowing capacity available
Line Of Credit Facility Additional Borrowing Capacity Available
Line Of Credit Facility, Additional Borrowing Capacity Available
Credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Credit facility, maturity date
Line of Credit Facility, Expiration Date
Credit facility, interest rate spread
Credit facility, commitment fee percentage
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Credit facility, covenant, debt to EBITDA ratio
Credit facility, covenant, debt to EBITDA ratio after step up triggered by acquisition
Credit facility, covenant, required business acquisition consideration, minimum
Credit facility, covenant, pro forma leverage ratio
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Statement, Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Geographical [Domain]
United States [Member]
UNITED STATES
Other Americas [Member]
Other America [Member]
Other America.
Asia [Member]
Asia [Member]
EMEA [Member]
EMEA [Member]
Japan [Member]
JAPAN
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Summary of long-lived assets by geography
Geographic Areas, Long-Lived Assets [Abstract]
Long-Lived Assets in Individual Foreign Countries
Long-Lived Assets
Americas:
Entity Wide Disclosure on Geographic Areas Long Lived Assets Attributed to Entity's Country of Domicile and Other Foreign Countries [Abstract]
Entity wide disclosure on geographic areas long lived assets attributed to entity's country of domicile and other foreign countries.
Total Americas
Entity Wide Disclosure on Geographic Areas Long Lived Assets Attributed to Entity's Country of Domicile and Other Foreign Countries
Entity wide disclosure on geographic areas long lived assets attributed to entity's country of domicile and other foreign countries.
Total long-lived assets
FAIR VALUE
Fair Value Disclosures [Text Block]
Amortization of acquired intangibles
Amortization of Acquired Intangibles [Abstract]
Amortization of acquired intangibles.
Cost of product and maintenance
Amortization of Intangible Assets Cost of Product
Amortization of intangible assets cost of product.
Amortization of acquired intangibles
Amortization of Intangible Assets
Total amortization of acquired intangibles
Amortization of Acquired Intangibles
Amortization of acquired intangibles, including amortization of costs from existing technology included in cost of product, and amortization of costs from acquired maintenance contracts included in cost of maintenance, and amortization of all other acquired intangibles.
Shares repurchased and the total cost of shares repurchased
Class of Treasury Stock [Table Text Block]
Loss Contingencies [Table]
Loss Contingencies [Table]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Litigation Status [Axis]
Litigation Status [Axis]
Litigation Status [Domain]
Litigation Status [Domain]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case [Domain]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Contingencies (Textual) [Abstract]
Contingencies (Textual) [Abstract]
Contingencies.
General period of warranty on sales of hardware products
General Period of Warranty on Sales of Hardware Products
General period of warranty on sales of hardware products.
Changes in the carrying amount of goodwill
Schedule of Goodwill [Table Text Block]
Schedule of acquired intangibles with finite and indefinite lives (excluding goodwill)
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Amortization of acquired intangibles
Amortization of Acquired Intangibles [Table Text Block]
Amortization of acquired intangibles.
Estimated amortization expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Long-term performance-based stock awards
Performance Shares [Member]
Options to purchase shares of common stock
Employee Stock Option [Member]
Non-vested shares of restricted stock
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of Cadence's common stock excluded
Potential Shares of Company Common Stock Excluded [Abstract]
Potential shares of company common stock excluded.
Total potential common shares excluded
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Award Type [Axis]
Award Type [Axis]
Equity Award [Domain]
Equity Award [Domain]
Stock option and restricted stock grants [Member]
Stock option and restricted stock grants [Member]
Stock option and restricted stock grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Weighted-average vesting period over which unrecognized compensation expense will be recognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Statement of Cash Flows [Abstract]
Cash and cash equivalents at beginning of period
Cash flows from operating activities:
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Amortization of debt discount and fees
Amortization of Debt Issuance Costs and Discounts
Stock-based compensation
Gain on investments, net
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Provisions for losses on receivables
Provision for Doubtful Accounts
Other non-cash items
Other Noncash Income (Expense)
Changes in operating assets and liabilities, net of effect of acquired businesses:
Increase (Decrease) in Operating Capital [Abstract]
Inventories
Increase (Decrease) in Inventories
Deferred revenue
Other long-term liabilities
Increase (Decrease) in Other Noncurrent Liabilities
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from the sale of available-for-sale securities
Proceeds from Sale of Available-for-sale Securities
Purchases of property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Net cash used for investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from revolving credit facility
Proceeds from Lines of Credit
Payment on revolving credit facility
Repayments of Lines of Credit
Payment of debt issuance costs
Payments of Debt Issuance Costs
Proceeds from issuance of common stock
Proceeds from Issuance of Common Stock
Stock received for payment of employee taxes on vesting of restricted stock
Stock Received for Payment of Employee Taxes on Vesting of Restricted Stock
Stock Received for Payment of Employee Taxes on Vesting of Restricted Stock
Payments for repurchases of common stock
Payments for Repurchase of Common Stock
Change in book overdraft
Increase (Decrease) in Book Overdrafts
Net cash used for financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at end of period
Supplemental cash flow information:
Supplemental Cash Flow Information [Abstract]
Cash paid for interest
Interest Paid
Cash paid for taxes, net
Income Taxes Paid, Net
NET INCOME PER SHARE
Earnings Per Share [Text Block]
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Revenue, Initial Application Period Cumulative Effect Transition [Table]
Initial application period cumulative effect adjustments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets
Contract with Customer, Asset, Net
Current portion of deferred revenue
Accounts payable and accrued liabilities
Deferred sales commission
Deferred Sales Commission
Percentage of revenue mix recognizable over time
Percentage of Revenue Mix Recognizable Over Time
Percentage of Revenue Mix Recognizable Over Time
Summary of the effects of the adoption of Topic 606
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Schedule of the cumulative effect of the change on retained earnings
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]
RESTRUCTURING AND OTHER CHARGES
Restructuring and Related Activities Disclosure [Text Block]
RECEIVABLES, NET
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Cash and cash equivalents
Short-term investments
Cash, cash equivalents, and short-term investments
Cash, Cash Equivalents, and Short-term Investments
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic and Diluted [Abstract]
Weighted-average common shares used to calculate basic net income per share (in shares)
Weighted Average Number of Shares Outstanding, Basic
Stock-based awards
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Weighted average common shares used to calculate diluted net income per share (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Net income per share - basic (in usd per share)
Net income per share - diluted (in usd per share)
Classified as cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value [Abstract]
Cash
Cash
Money market funds
Money Market Funds, at Carrying Value
Total cash and cash equivalents
Stock-based compensation expense and allocation by cost [Table Text Block]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Asia [Member]
Entity Wide Disclosure on Geographic Areas Revenue from External Customers
Geographic Areas, Revenues from External Customers [Abstract]
Geographic areas, revenue from external customers
Revenues
Americas:
Entity Wide Disclosure on Geographic Areas Revenue from External Customers Attributed to Entity's Country of Domicile and Other Foreign Countries [Abstract]
Entity wide disclosure on geographic areas revenue from external customers attributed to entity's country of domicile and other foreign countries.
Total Americas
Entity Wide Disclosure on Geographic Areas Revenue from External Customers Attributed to Country of Domicile and Other Foreign Countries
Entity wide disclosure on geographic areas revenue from external customers attributed to country of domicile and other foreign countries.
Total revenue
Revenue, Net
Revenue recognized from deferred revenue during the period
Contract with Customer, Liability, Revenue Recognized
Unsatisfied performance obligations
Revenue, Remaining Performance Obligation
Percent of remaining performance obligations, current
Percent of Remaining Performance Obligations, Current
Percent of remaining performance obligation to be recognized in next twelve months.
Revenue recognized from satisfaction of performance obligations
Revenue Recognized from Satisfaction of Performance Obligations
Revenue Recognized from Satisfaction of Performance Obligations
Capitalized contract costs, net
Capitalized Contract Cost, Net
Amortization of capitalized contract costs
Capitalized Contract Cost, Amortization
OTHER COMPREHENSIVE LOSS
Comprehensive Income (Loss) Note [Text Block]
Summary of revenue by geography
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Summary of long-lived assets by geography
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
Accumulated depreciation on property, plant and equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Basis of Presentation
Consolidation, Policy [Policy Text Block]
Cash and Cash Equivalents and Short Term Investments
Cash and Cash Equivalents and Short Term Investments [Policy Text Block]
Cash, cash equivalents and short-term investments policies.
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Contingencies
Commitments and Contingencies, Policy [Policy Text Block]
Revenue:
Revenues [Abstract]
Product and maintenance
Services
Total revenue
Costs and Expenses:
Costs and Expenses [Abstract]
Cost of product and maintenance
Cost of services
Technology Services Costs
Marketing and sales
Research and development
Research and Development Expense, Software (Excluding Acquired in Process Cost)
General and administrative
General and Administrative Expense
Amortization of acquired intangibles
Restructuring and other credits
Restructuring Charges
Total costs and expenses
Costs and Expenses
Income from operations
Operating Income (Loss)
Interest expense
Interest Expense
Other income, net
Other Nonoperating Income (Expense)
Net income
Weighted average common shares outstanding - basic (in shares)
Weighted average common shares outstanding - diluted (in shares)
Contract assets
Deferred revenue
Deferred Revenue
Foreign currency translation loss
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Changes in defined benefit plan liabilities
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Unrealized holding gains on available-for-sale securities
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Total accumulated other comprehensive income loss
GOODWILL AND ACQUIRED INTANGIBLES
Goodwill and Intangible Assets Disclosure [Text Block]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
Gain (Loss) on Investments
Principal
Principal Amount Oustanding Of Revolving Line of Credit
Principal Amount Oustanding Of Revolving Line of Credit
Principal
Principal
Remaining Principal Amount Of Debt Outstanding
Remaining Principal Amount Of Debt Outstanding
Unamortized discount and debt issuance costs
Line of Credit, Current
Carrying value
Carrying value
Carrying Value Of Debt Outstanding
Carrying Value Of Debt Outstanding
REVENUE
Revenue from Contract with Customer [Text Block]
Restructuring reserve rollforward by major type of cost
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Schedule of Restructuring Reserve by Balance Sheet Classification [Table Text Block]
Schedule of Restructuring Reserve by Balance Sheet Classification [Table Text Block]
[Table Text Block] for Schedule of Restructuring Reserve by Balance Sheet Classification [Table]
STOCK REPURCHASE PROGRAM
Treasury Stock [Text Block]