Unvested RSUs, DSUs and Restricted Stock Restricted Stock, Restricted Stock Units And Deferred Stock Units [Member] Restricted Stock, Restricted Stock Units And Deferred Stock Units Significant Accounting Policies Significant Accounting Policies [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Axis] Award Timing Predetermined Award Timing Predetermined [Flag] 2026 (remaining nine months) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Entity File Number Entity File Number Deferred revenue recognized from previous period Contract with Customer, Performance Obligation Satisfied in Previous Period Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Leases [Abstract] Unbilled receivables Unbilled Contracts Receivable Schedule of Depreciation, Amortization and Accretion Depreciation Amortization And Accretion Table [Table Text Block] Depreciation amortization and accretion. Schedule of Cash Dividends Declared Dividends Declared [Table Text Block] Recently issued accounting pronouncements not yet adopted New Accounting Pronouncements, Policy [Policy Text Block] Long-Term Portion Asset Retirement Obligations, Noncurrent [Member] Asset Retirement Obligations, Noncurrent [Member] Right-of-use assets obtained in exchange for lease obligations Right-Of-Use Asset Obtained In Exchange For Operating Lease Liability, Net of Lease Termination Right-Of-Use Asset Obtained In Exchange For Operating Lease Liability, Net of Lease Termination Type of Restructuring [Domain] Type of Restructuring [Domain] Performance-based RSUs Restricted Stock Units with Contingent Performance Requirements [Member] Restricted Stock and Restricted Stock Units with Contingent Performance Requirements [Member] License License [Member] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic net income per common share (in usd per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Related Parties Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Shares reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Amounts paid Asset Retirement Obligation, Liabilities Settled Revenue, Deferred Revenue and Prepaid Commissions Revenue from Contract with Customer [Text Block] Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Issuance of common stock under the employee stock purchase plan (in shares) ESPP common stock purchased by eligible employees (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Reclassifications Asset Retirement Obligation, Revision of Estimate Capitalized Contract Cost [Domain] Capitalized Contract Cost [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk percentage (more than) Concentration Risk, Percentage Basis of Presentation Consolidation, Policy [Policy Text Block] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Total stock-based compensation Share-Based Payment Arrangement, Expense Common stock authorized (in shares) Common Stock, Shares Authorized Schedule of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Current assets: Assets, Current [Abstract] Total liabilities and stockholders' equity Liabilities and Equity Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Cover [Abstract] Contingent RSUs Contingent Restricted Stock Units [Member] Contingent Restricted Stock Units [Member] Maximum Maximum [Member] Accounting Policies [Abstract] Accounting Policies [Abstract] Balance at beginning of period Balance at end of period Accounts And Contract With Customer Receivable, Allowance For Credit Loss, Current Accounts And Contract With Customer Receivable, Allowance For Credit Loss, Current Schedule of Maturities of Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Restricted Stock Restricted Stock [Member] Concentration Risk Type [Domain] Concentration Risk Type [Domain] 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Document Fiscal Period Focus Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Software revenue Software Operations [Member] Software operations. Total assets Assets Trading Symbol Trading Symbol 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Vested (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Geographical [Domain] Geographical [Domain] Entity Address, City or Town Entity Address, City or Town Operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Effect of exchange rate on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Capitalized Contract Cost [Table] Capitalized Contract Cost [Table] Cash dividends declared per common share (in usd per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Balance at beginning of year Balance at end of year Capitalized Contract Cost, Net Right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Revenue recognized Contract​ With ​Customer, ​Liability, ​Revenue​ Recognized​, Including​ Opening​ Balance Contract​ With ​Customer, ​Liability, ​Revenue​ Recognized​, Including​ Opening​ Balance Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total depreciation Depreciation, Net Of Asset Retirement Costs Depreciation, Net Of Asset Retirement Costs Related Party Related Party [Member] Common stock outstanding (in shares) Common Stock, Shares, Outstanding Plan Name [Axis] Plan Name [Axis] PEO PEO [Member] Share-based Compensation Arrangement By Share-based Payment Award, Shares Authorized [Roll Forward] Share-based Compensation Arrangement By Share-based Payment Award, Shares Authorized [Roll Forward] Share-based Compensation Arrangement By Share-based Payment Award, Shares Authorized [Roll Forward] Paging revenue Paging [Member] Paging Schedule of Revenue Disaggregation of Revenue [Table Text Block] Employee Severance Employee Severance [Member] Interest income Investment Income, Interest United States UNITED STATES Changes in assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Lessee, Operating Lease, Liability, To Be Paid, After Year Four Retained Earnings Retained Earnings [Member] Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash and cash equivalents, beginning of period Cash and cash 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Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] General and administrative General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Purchase of common stock for tax withholding (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Related Party Transactions [Abstract] Related Party Transactions [Abstract] Preferred stock par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Useful Life (In Years) Property, Plant and Equipment, Useful Life Subsequent Event Subsequent Event [Member] Total lease cost Lease, Cost Goodwill Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, 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in) Investing Activity, Including Discontinued Operation Remaining performance obligation, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Document Fiscal Year Focus Document Fiscal Year Focus Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current Wireless revenue Wireless revenue Wireless Operations [Member] Wireless operations. 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other assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Compensation cost not yet recognized, share-based awards other than options Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Subsequent Event Type [Axis] Subsequent Event Type [Axis] Expected severance and personnel related costs Restructuring and Related Cost, Expected Cost ASSETS Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Forfeited (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Stockholders' equity: Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted 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Period Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Deferred income tax expense Deferred Income Taxes and Tax Credits Offering period, maximum Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period Share-based Compensation Arrangement by Share-based Payment Award, Offering Period Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Number of renewal options Lessee, Operating Lease, Number Of Renewal Terms Lessee, Operating Lease, Number Of Renewal Terms 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Granted (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Title 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Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Schedule of Change in Allowance for Credit Losses Accounts Receivable, Allowance for Credit Loss [Table Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Unvested, beginning balance (in usd per share) Unvested, ending balance (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Restructuring Type [Axis] Restructuring Type [Axis] Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Time-Based Awards and Restricted Stock Time-Based Awards and Restricted Stock [Member] Time-Based Awards and 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Selected Measure Name Company Selected Measure Name Asset Retirement Obligations Asset Retirement Obligation Disclosure [Text Block] Preferred stock Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Cash paid for amounts included in the measurement of lease liabilities - operating leases Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] All Executive Categories All Executive Categories [Member] Common stock Common Stock, Value, Issued Restructuring Plan [Domain] Restructuring Plan [Domain] Accretion Asset Retirement Obligation, Accretion Expense (Credit) Asset Retirement Obligation, Accretion Expense (Credit) Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Segment Information Segment Reporting, Policy [Policy Text Block] Commitments and contingencies (Note 12) Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Preferred stock outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Recent Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Underlying Securities Award Underlying Securities Amount Technology operations Technology Operations Expense Technology Operations Expense Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Income Taxes Income Tax Disclosure [Text Block] Condensed Consolidated Financial Statements' Components Supplemental Balance Sheet Disclosures [Text Block] Accounts receivable, net of allowance Accounts Receivable, Allowance for Credit Loss Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Short-term lease cost Short-Term Lease, Cost Purchase of common stock for tax withholding Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Net operating lease liabilities Increase (Decrease) in Operating Lease Liability Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Document Type Document Type Name Outstanding Recovery, Individual Name Product and Service [Axis] Product and Service [Axis] Prepaid Commissions Sales Commissions [Member] Sales Commissions [Member] Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Total revenue Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Schedule of Activities Under Equity Plan Activities Under Equity Plan From Inception [Table Text Block] Activities under equity plan from inception. Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Common stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Asset retirement costs Asset Retirement Costs [Member] Asset Retirement Costs [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Purchase of common stock for tax withholding on vested equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Award required holding period Share-Based Compensation Arrangement By Share-Based Payment Award, Award Required Holding Period Share-based Compensation Arrangement by Share-based Payment Award, Award Required Holding Period Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Current liabilities: Liabilities, Current [Abstract] Geographical [Axis] Geographical [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Provisions for credit losses, service credits and other Provisions For Doubtful Accounts, Service Credits, Noncash Taxes And Other The net change during the reporting period in service credits and expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). 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projects Professional Services - Projects [Member] Professional Services - Projects Income taxes refunded Income Taxes Paid, Net Award Timing Disclosures [Line Items] Schedule of Changes in Asset Retirement Obligation Liabilities Schedule of Change in Asset Retirement Obligation [Table Text Block] Accrued compensation and benefits Employee-related Liabilities, Current Total future lease payments Lessee, Operating Lease, Liability, to be Paid Stockholders' Equity Equity [Text Block] Net income Net income Net income Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date Non-current liabilities: Liabilities, Noncurrent [Abstract] 2020 Equity Plan 2020 Equity Plan [Member] 2020 Equity Plan Capitalized Contract Cost [Roll Forward] Capitalized Contract Cost [Roll Forward] Capitalized Contract Cost [Roll Forward] Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Professional services - managed services Professional Services - Managed Services [Member] Professional Services - Managed Services Property and equipment, net Total property and equipment, net Property, Plant and Equipment, Net Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Severance and restructuring Restructuring Charges Geographic Concentration Risk Geographic Concentration Risk [Member] Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Additions Contract With Customer, Liability, Increase From Additions Contract With Customer, Liability, Increase From Additions Entity Current Reporting Status Entity Current Reporting Status Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Operating income Operating Income (Loss) Retained earnings Retained Earnings (Accumulated Deficit) Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Asset retirement obligations Beginning balance, long-term portion Ending balance, long-term portion Asset Retirement Obligations, Noncurrent Write-offs Accounts And Contract With Customer Receivable, Allowance For Credit Loss, Writeoff Accounts And Contract With Customer Receivable, Allowance For Credit Loss, Writeoff Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Weighted Average Grant Date Fair Value per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Equity securities available, beginning balance (in shares) Equity securities available, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Other income Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Beginning balance Ending balance Contract with Customer, Liability Organization and Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Leases Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Weighted average discount rate - operating leases Operating Lease, Weighted Average Discount Rate, Percent ESPP Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Strategic Realignment Strategic Realignment [Member] Strategic Realignment Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Schedule of Basic and Diluted Net Income Per Common Shares Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Capitalized Contract Cost [Line Items] Capitalized Contract Cost [Line Items] Subsequent Events [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] Cost of revenue (exclusive of items shown separately below) Cost of Revenue Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Schedule Of Asset Retirement Obligation Liabilities [Table] Schedule Of Asset Retirement Obligation Liabilities [Table] Schedule Of Asset Retirement Obligation Liabilities [Table] Cash dividends declared Dividends, Cash Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Contract term Revenue From Contract With Customer, Contract Term Revenue From Contract With Customer, Contract Term Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed Common stock par value (in usd per share) Common Stock, Par or Stated Value Per Share Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Termination term Lessee, Operating Lease, Termination Term Lessee, Operating Lease, Termination Term Weighted average remaining lease term - operating leases (in years) Operating Lease, Weighted Average Remaining Lease Term Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Subsequent Event Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name RSU, DSU, and restricted stock awarded to eligible employees, net of forfeitures (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Net of Forfeitures Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Net of Forfeitures Product and other revenue Product and Service, Other [Member] Total non-current liabilities Liabilities, Noncurrent Total liabilities Liabilities Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Prepaid expenses Prepaid Expense, Current Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Other current liabilities Other Liabilities, Current Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Schedule of Outstanding RSUs Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Subsequent Event [Line Items] Subsequent Event [Line Items] Additional shares available for issuance under the 2020 Equity Plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Common Stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Furniture, fixtures and vehicles Furniture, Fixtures and Vehicles [Member] Furniture, Fixtures and Vehicles [Member]