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Nature of Business and Significant Accounting Policies - Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 29, 2021 | Jul. 30, 2021 | Jul. 22, 2020 | May 12, 2020 | Mar. 06, 2020 | Aug. 09, 2019 | Jan. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 25, 2021
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to Inseego Corp. |  |  |  |  |  |  |  |  |  |  |  | $ 48,125 | $ 111,215 | $ 40,125 |
Cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  | 46,474 | 40,015 |  |
Working capital |  |  |  |  |  |  |  |  |  |  |  | 52,800 |  |  |
Initial cash proceeds |  |  | $ 36,566 |  |  |  |  |  |  |  |  |  |  |  |
Net cash proceeds | [1] |  |  |  |  |  |  |  |  |  |  | 33,689 | 0 | 0 |
Number of shares issued (in shares) |  |  |  |  |  |  |  | 1,516,073 |  |  |  |  |  |  |
Purchase price (in dollars per share) |  |  |  |  |  |  |  | $ 20.11 |  |  |  |  |  |  |
Proceeds from sale of stock |  |  |  |  |  |  |  | $ 29,400 |  |  |  |  |  |  |
Stock issuance costs |  |  |  |  |  |  |  | $ 900 |  |  |  |  |  |  |
Conversion number of shares |  |  |  |  |  |  |  |  | 1,177,156 |  |  |  |  |  |
2022 Notes conversion to equity |  |  |  |  |  |  |  |  |  |  |  | 0 | 59,907 | 0 |
Gross proceeds from the issuance of 2025 Notes |  |  |  |  |  |  |  |  |  |  |  | 0 | 100,000 | 0 |
Cash paid in exchange transaction |  |  |  |  | $ 32,000 |  |  |  |  | $ 32,000 |  | $ 0 | $ 32,062 | 0 |
Preferred stock, par value (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 0.001 | $ 0.001 |  |
Gross proceeds received from issuance of Series E preferred stock |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 25,000 | $ 10,000 |
Disposed of by sale | Ctrack South Africa |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial cash proceeds |  |  | 36,600 |  |  |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  | 31,500 |  |  |  |  |  |  |  |  |  |  |  |
Net cash divested |  |  | 5,040 |  |  |  |  |  |  |  |  |  |  |  |
Post-closing working capital adjustments |  |  | $ 2,584 |  |  |  |  |  |  |  |  |  |  |  |
Post-closing working capital adjustments received |  | $ 2,200 |  |  |  |  |  |  |  |  |  |  |  |  |
Receivable related to working capital adjustments |  | $ 400 |  |  |  |  |  |  |  |  |  |  |  |  |
Canaccord Genuity LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Distribution Agreement, maximum aggregate amount authorized for offer or sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40,000
2025 Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of converted amount |  |  |  |  |  |  |  |  | $ 13,500 |  |  | $ 5,000 |  |  |
Conversion number of shares |  |  |  |  |  |  |  |  |  |  |  | 428,669 |  |  |
Debt conversion amount |  |  |  |  |  |  |  |  |  |  |  | $ 5,000 |  |  |
Convertible debt | 2022 Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion number of shares |  |  |  |  |  |  |  |  |  |  | 13,688,876 |  |  |  |
Carrying amount of debt |  |  |  |  | 45,000 |  |  |  |  |  |  |  | 2 |  |
2022 Notes conversion to equity |  |  |  |  |  |  |  |  |  |  | $ 59,900 |  |  |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  | 5.5 |  |  |  |
Debt conversion amount |  |  |  | $ 2 | 45,000 |  |  |  | $ 2 | $ 45,000 | $ 59,900 |  |  |  |
Convertible debt | 2025 Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of debt |  |  |  |  | 180,400 |  |  |  |  |  |  | $ 161,898 | $ 166,898 |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  | 3.25 |  |  |  |  |
Gross proceeds from the issuance of 2025 Notes |  |  |  |  | 100,000 |  |  |  |  | $ 100,000 |  |  |  |  |
Debt issued in exchange transaction |  |  |  |  | $ 80,400 |  |  |  |  | $ 80,400 |  |  |  |  |
Series E preferred shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  |  |  |  | 25,000 |  |  |  |  |  |  |  |  |
Purchase price (in dollars per share) |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |
Number of shares sold |  |  |  |  |  | 25,000 | 10,000 |  |  |  |  |  |  |  |
Preferred stock, par value (in dollars per share) |  |  |  |  |  | $ 0.001 |  |  |  |  |  | $ 0.001 | $ 0.001 |  |
Gross proceeds received from issuance of Series E preferred stock |  |  |  |  |  | $ 25,000 | $ 10,000 |  |  |  |  |  |  |  |
[1] | The amount for the year ended December 31, 2021 is net of cash divested of $5.0 million

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