| Pay vs Performance Disclosure | 12 Months Ended |
| Dec. 31, 2022 USD ($) | Jan. 01, 2022 USD ($) | Jan. 02, 2021 USD ($) |
| Pay vs Performance Disclosure [Table] | | | |
| Pay vs Performance [Table Text Block] | Year Summary Compensation Table Total for PEO Compensation Actually Paid to PEO (1)(2) Average Summary Compensation Table Total for Non-PEO NEOs (3) Average Compensation Actually Paid to Non-PEO NEOs (1)(3)(4) Value of Initial Fixed $100 Net Income (dollars in thousands) Company TSR Peer Group TSR (5) Relative TSR vs. Russell 2000 Index (6) (a) (b) (c) (d) (e) (f) (g) (h) (i) 2022 $ 5,930,277 $ 3,742,696 $ 1,834,495 $ 1,238,722 $ 95.06 $ 93.83 $ (286,295) (13) % (~P43) 2021 $ 6,273,391 $ (3,096,075) $ 2,061,594 $ (424,081) $ 130.12 $ 173.33 $ 30,390 (33) % (~P25) 2020 $ 6,192,685 $ 14,450,419 $ 1,701,843 $ 3,441,952 $ 158.58 $ 176.01 $ 147,068 51 % (~P87) | | |
| Company Selected Measure Name | 6.Relative TSR | | |
| Named Executive Officers, Footnote [Text Block] | Amounts represent average total compensation reported in the Summary Compensation Table and average “compensation actually paid” to our named executive officers (excluding our PEO) for the relevant fiscal year, which includes the individuals indicated in the table below for each fiscal year: Year Non-PEO NEO's 2022 Julie Zeiler, Glen Weinstein, Jean Jacques Blanc, and Faris Habbaba 2021 Julie Zeiler, Glen Weinstein, Jean Jacques Blanc, and Faris Habbaba 2020 Julie Zeiler, Alison Dean, Glen Weinstein, Tim Saeger, Keith Hartsfield, and Russell Campanello | | |
| Peer Group Issuers, Footnote [Text Block] | We used the 2022 peer group used for compensation benchmarking purposes to illustrate the value of initial fixed $100 investment. As of December 31, 2022, there were fifteen companies in our 2022 peer group used for compensation benchmarking purposes, which are: 3D Systems Corporation, Alarm.com Holdings, Inc., Azenta Inc., Coherent Corp., Dolby Laboratories, Inc., Faro Technologies, Inc., Garmin Ltd., GoPro, Inc., Logitech International S.A., NETGEAR, Inc., Novanta I nc., Roku, Inc., Sonos, Inc., Trimble Inc. and Universal Electronics Inc. For these purposes, we removed Poly (Plantronics, Inc.) from the 2022 peer group disclosed in the CD&A as they were acquired by Hewlett Packard on August 29, 2022. | | |
| PEO Total Compensation Amount | $ 5,930,277 | $ 6,273,391 | $ 6,192,685 |
| PEO Actually Paid Compensation Amount | $ 3,742,696 | (3,096,075) | 14,450,419 |
| Adjustment To PEO Compensation, Footnote [Text Block] | SEC rules require certain adjustments be made to the Summary Compensation Table totals to determine “compensation actually paid” as reported in the Pay Versus Performance Table. Compensation actually paid does not necessarily represent cash and/or equity value transferred to the applicable named executive officer without restriction, but rather is a value calculated in accordance with Item 402(v) of Regulation S-K.The following tables show the adjustments made to our PEO’s total compensation as reported in the Summary Compensation Table to calculate “compensation actually paid” for each fiscal year: PEO Summary Compensation Table Total to Compensation Actually Paid Reconciliation Year Summary Compensation Table Total Deductions from Summary Compensation Table Total Additions to Summary Compensation Table Total Compensation Actually Paid 2022 $ 5,930,277 $ (5,923,915) $ 3,736,334 $ 3,742,696 2021 $ 6,273,391 $ (12,744,963) $ 3,375,498 $ (3,096,075) 2020 $ 6,192,685 $ (4,396,024) $ 12,653,758 $ 14,450,419 The table below further details the adjustments made to the PEO’s Summary Compensation Table totals to determine “compensation actually paid” for the PEO: PEO 2022 2021 2020 Summary Compensation Table ( “ SCT ” ) Total $ 5,930,277 $ 6,273,391 $ 6,192,685 Deduction for Amounts Reported Under the "Stock Awards" Column in the SCT $ (5,071,127) $ (5,418,537) $ (3,851,977) Deduction for Amounts Reported Under the "Option Awards" Column in the SCT $ — $ — $ — Increase in Fair Value of Awards Granted During Year that Remain Unvested as of Year-End $ 3,736,334 $ 1,196,578 $ 9,919,027 Increase in Fair Value of Awards Granted During Year that Vested During Year $ — $ — $ — Increase/Decrease in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $ (708,083) $ (7,326,426) $ 2,734,731 Increase/Decrease in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $ (144,705) $ 2,178,919 $ (544,047) Deduction of Fair Value of Awards Granted Prior to Year that were Forfeited During the Year $ — $ — $ — Increase Based Upon Incremental Fair Value of Awards Modified During Year $ — $ — $ — Increase Based on Dividends or other Earnings Paid During Year Prior to Vesting Date of Award $ — $ — $ — Total Additions $ 3,736,334 $ 3,375,498 $ 12,653,758 Total Deductions $ (5,923,915) $ (12,744,963) $ (4,396,024) Total Adjustments $ (2,187,581) $ (9,369,466) $ 8,257,734 Compensation Actually Paid $ 3,742,696 $ (3,096,075) $ 14,450,419 | | |
| Non-PEO NEO Average Total Compensation Amount | $ 1,834,495 | 2,061,594 | 1,701,843 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,238,722 | (424,081) | 3,441,952 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | SEC rules require certain adjustments be made to the Summary Compensation Table totals to determine “compensation actually paid” as reported in the Pay Versus Performance Table. Compensation actually paid does not necessarily represent cash and/or equity value transferred to the applicable named executive officer without restriction, but rather is a value calculated in accordance with Item 402(v) of Regulation S-K.The following tables shows the adjustments made to the average Summary Compensation Table totals of our named executive officers (excluding our PEO) as reported in the Summary Compensation Table to calculate “compensation actually paid” for each fiscal year: Year Summary Compensation Table Total Deductions from Summary Compensation Table Total Additions to Summary Compensation Table Total Compensation Actually Paid 2022 $ 1,834,495 $ (1,559,090) $ 963,316 $ 1,238,722 2021 $ 2,061,594 $ (3,410,738) $ 925,062 $ (424,081) 2020 $ 1,701,843 $ (1,005,287) $ 2,745,396 $ 3,441,952 The table below further details the adjustments to determine the average “compensation actually paid” to our named executive officers (excluding our PEO): Average of Named Executive Officers Excluding the PEO 2022 2021 2020 Summary Compensation Table (“SCT”) Total $ 1,834,495 $ 2,061,594 $ 1,701,843 Deduction for Amounts Reported Under the "Stock Awards" Column in the SCT $ (1,277,879) $ (1,551,209) $ (879,042) Deduction for Amounts Reported Under the "Option Awards" Column in the SCT $ — $ — $ — Increase in Fair Value of Awards Granted During Year that Remain Unvested as of Year-End $ 963,316 $ 656,017 $ 2,263,576 Increase in Fair Value of Awards Granted During Year that Vested During Year $ — $ — $ — Increase/Decrease in Fair Value from Prior Year-end to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $ (216,785) $ (1,859,528) $ 415,362 Increase/Decrease in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $ (64,425) $ 269,045 $ (30,359) Deduction of Fair Value of Awards Granted Prior to Year that were Forfeited During the Year $ — $ — $ (95,886) Increase Based Upon Incremental Fair Value of Awards Modified During Year $ — $ — $ 66,458 Increase Based on Dividends or other Earnings Paid During Year Prior to Vesting Date of Award $ — $ — $ — Total Additions $ 963,316 $ 925,062 $ 2,745,396 Total Deductions $ (1,559,090) $ (3,410,738) $ (1,005,287) Total Adjustments $ (595,773) $ (2,485,675) $ 1,740,109 Compensation Actually Paid $ 1,238,722 $ (424,081) $ 3,441,952 | | |
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | We use a mix of performance measures in our annual and long-term incentive programs to align executive pay with Company performance. Our named executive officers’ target total compensation is heavily weighted towards short and long-term performance with performance goals aligned with stockholders’ interest. We believe the Pay Versus Performance tables show the alignment between compensation actually paid to the named executive officers and the Company’s performance, consistent with our compensation philosophy as described in our CD&A on page 32. Specifically, a large portion of the named executive officers’ compensation for 2022 was earned based on relative TSR against the Index and as such the PEO and non-PEO named executive officers’ “compensation actually paid” each year was generally aligned with our relative TSR performance and increased when our relative TSR performance increased but declined when our relative TSR performance declined. Our revenue and operating income performance over the period also generally align with compensation actually paid. | | |
| Compensation Actually Paid vs. Net Income [Text Block] | As shown in the Pay Versus Performance table, the Company’s net income has decreased while the PEO and other named executive officers’ compensation actually paid declined significantly in 2021 from 2020 with some recovery in 2022. This is due in large part to the significant emphasis the Company places on equity incentives, which are sensitive to changes in stock price. The Company does not use net income to determine compensation levels or incentive plan payouts. | | |
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | We use a mix of performance measures in our annual and long-term incentive programs to align executive pay with Company performance. Our named executive officers’ target total compensation is heavily weighted towards short and long-term performance with performance goals aligned with stockholders’ interest. We believe the Pay Versus Performance tables show the alignment between compensation actually paid to the named executive officers and the Company’s performance, consistent with our compensation philosophy as described in our CD&A on page 32. Specifically, a large portion of the named executive officers’ compensation for 2022 was earned based on relative TSR against the Index and as such the PEO and non-PEO named executive officers’ “compensation actually paid” each year was generally aligned with our relative TSR performance and increased when our relative TSR performance increased but declined when our relative TSR performance declined. Our revenue and operating income performance over the period also generally align with compensation actually paid. | | |
| Total Shareholder Return Vs Peer Group [Text Block] | As outlined in our CD&A on page 35 we do not have any true consumer robotic peer companies that are publicly traded. The pandemic created some volatility within our peer group ’ s TSR and while our TSR performance was behind the peer group the end of 2020 and 2021, our TSR recovered at the end of 2022. This performance generally aligned well with compensation actually paid to our named executive officers. COMPARISON OF 3 YEAR CUMULATIVE TOTAL RETURN * # Among iRobot Corporation and a Peer Group *$100 invested on 12/31/2019 in stock or index, including reinvestment dividends # Fiscal year end December 31. 12/19 12/20 12/21 12/22 iRobot Corporation 100.00 158.58 130.12 95.06 Peer Group 100.00 176.01 173.33 93.83 | | |
| Tabular List [Table Text Block] | Most Important Performance Measures • Relative Total Shareholder Return • Non-GAAP Operating Income(1) • Revenue | | |
| Total Shareholder Return Amount | $ 95.06 | 130.12 | 158.58 |
| Peer Group Total Shareholder Return Amount | 93.83 | 173.33 | 176.01 |
| Net Income (Loss) | $ (286,295,000) | $ 30,390,000 | $ 147,068,000 |
| Company Selected Measure Amount | (0.13) | (0.33) | 0.51 |
| Additional 402(v) Disclosure [Text Block] | When reconciling to GAAP operating income, non-GAAP operating income reflects adjustments for amortization of acquired tangible assets, stock-based compensation, tariff refunds, net merger, acquisition, and divestiture expense (income), IP litigation expense, and restructuring/other. To further show the alignment of pay and performance, we have shown our PEO’s realizable pay over the past three years to supplement the Pay Versus Performance table. This shows a similar story to compensation actually paid, where pay has fallen below target when we fall short of compensatory performance goals. | | |
| Measure [Axis]: 1 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | •Relative Total Shareholder Return | | |
| Non-GAAP Measure Description [Text Block] | Relative TSR is defined as the percentage by which our TSR is greater than or less than the Russell 2000 Index. While we consider numerous financial and non-financial performance measures for the purpose of evaluating and determining executive compensation, we consider relative TSR against the Index (which is the primary measure used to determine for the number of PSUs earned for purposes of the 2022 PSU awards) to be the most important performance measure used by the Company to link compensation actually paid to the named executive officers for fiscal year 2022 to Company performance. | | |
| Measure [Axis]: 2 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | •Non-GAAP Operating Income(1) | | |
| Measure [Axis]: 3 | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Measure Name | •Revenue | | |
| PEO [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | $ (2,187,581) | $ (9,369,466) | $ 8,257,734 |
| PEO [Member] | Deductions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (5,923,915) | (12,744,963) | (4,396,024) |
| PEO [Member] | Additions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 3,736,334 | 3,375,498 | 12,653,758 |
| PEO [Member] | Stock Awards Adjustments [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (5,071,127) | (5,418,537) | (3,851,977) |
| PEO [Member] | Option Awards Adjustments [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| PEO [Member] | Equity Awards Granted During The Year, Unvested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 3,736,334 | 1,196,578 | 9,919,027 |
| PEO [Member] | Equity Awards Granted During The Year, Vested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| PEO [Member] | Equity Awards Granted In Prior Years, Unvested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (708,083) | (7,326,426) | 2,734,731 |
| PEO [Member] | Equity Awards Granted In Prior Years, Vested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (144,705) | 2,178,919 | (544,047) |
| PEO [Member] | Equity Awards That Failed To Meet Vesting Conditions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| PEO [Member] | Equity Awards Modified During The Year, Fair Value Adjustment [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| PEO [Member] | Equity Awards, Value Of Dividends And Other Earnings Paid Adjustment [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| Non-PEO NEO [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (595,773) | (2,485,675) | 1,740,109 |
| Non-PEO NEO [Member] | Deductions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | (1,559,090) | (3,410,738) | (1,005,287) |
| Non-PEO NEO [Member] | Additions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment to Compensation Amount | 963,316 | 925,062 | 2,745,396 |
| Non-PEO NEO [Member] | Stock Awards Adjustments [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (1,277,879) | (1,551,209) | (879,042) |
| Non-PEO NEO [Member] | Option Awards Adjustments [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| Non-PEO NEO [Member] | Equity Awards Granted During The Year, Unvested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 963,316 | 656,017 | 2,263,576 |
| Non-PEO NEO [Member] | Equity Awards Granted During The Year, Vested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 0 |
| Non-PEO NEO [Member] | Equity Awards Granted In Prior Years, Unvested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (216,785) | (1,859,528) | 415,362 |
| Non-PEO NEO [Member] | Equity Awards Granted In Prior Years, Vested [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | (64,425) | 269,045 | (30,359) |
| Non-PEO NEO [Member] | Equity Awards That Failed To Meet Vesting Conditions [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | (95,886) |
| Non-PEO NEO [Member] | Equity Awards Modified During The Year, Fair Value Adjustment [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | 0 | 0 | 66,458 |
| Non-PEO NEO [Member] | Equity Awards, Value Of Dividends And Other Earnings Paid Adjustment [Member] | | | |
| Pay vs Performance Disclosure [Table] | | | |
| Adjustment To Compensation Amount, Equity Awards | $ 0 | $ 0 | $ 0 |
