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Relationship with Parent and Related Entities - Additional Information (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 27, 2016 | Feb. 25, 2016 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Due to affiliates |  |  | $ 304,030 |  |  |  | $ 304,030 |  | $ 372,650 | $ 394,400 |
ESPP |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum stock purchase, percentage of compensation |  |  | 20.00% |  |  |  | 20.00% |  | 20.00% |  |
Offering period length |  |  |  |  |  |  | 6 months |  | 6 months |  |
Purchase price of common stock, percent of market value |  |  |  |  |  |  | 85.00% |  | 85.00% |  |
Maximum value of common stock purchase, per year |  |  |  |  |  |  | $ 25 |  | $ 25 |  |
Minimum | Equity-Based Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  | 1 year |  | 1 year |  |
Maximum | Equity-Based Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  | 5 years |  | 5 years |  |
Affiliated Entity | SolarWinds Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Due to affiliates |  |  | $ 203,500 | $ 228,500 |  |  | $ 203,500 |  | $ 228,500 |  |
Interest expense, related party |  |  | 6,100 | 6,500 | $ 7,100 | $ 7,600 | 12,600 | $ 14,700 | 28,100 | 34,100 | $ 34,700
Accounts payable, related parties |  |  | 20,400 | 19,100 |  |  | 20,400 |  | 8,000 | 2,000 |
Accounts receivable, related parties |  |  | 400 | 800 |  |  | 400 |  | 300 | 100 |
Management fees |  |  | 10,089 |  | 5,381 |  | 19,320 | 11,057 | 35,147 | 19,845 | 13,063
Affiliated Entity | SolarWinds Holdings, Inc. | ESPP |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Management fees |  |  | 100 | 100 | 100 | 100 | 300 | 200 | 500 | 200 |
Affiliated Entity | SolarWinds Holdings, Inc. | Equity-Based Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Management fees |  |  | 4,100 | 4,600 | $ 3,100 | $ 2,600 | 8,800 | $ 5,700 | 20,600 | 8,400 | $ 1,800
Affiliated Entity | SolarWinds Holdings, Inc. | Loan Agreement With SolarWinds Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loans payable |  |  | 100,500 | 144,200 |  |  | 100,500 |  | 144,200 |  |
Affiliated Entity | SolarWinds Holdings, Inc. | Loans Payable |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  | $ 250,000 |  |  |  |  |  |  |  |  |
Affiliated Entity | SolarWinds Holdings, Inc. | Loans Payable | Loan Agreement With SolarWinds Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Face amount of debt | $ 200,000 |  |  |  |  |  |  |  |  |  |
Related party transaction, rate | 2.24% |  |  |  |  |  |  |  |  |  |
Affiliated Entity | SolarWinds Holdings, Inc. | Loans Payable | LIBOR |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 9.80% |  |  |  |  |  |  |  |  |
Affiliated Entity | SolarWinds Holdings, Inc. | Other Noncurrent Liabilities |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Due to affiliates |  |  | $ 304,000 | $ 372,700 |  |  | $ 304,000 |  | $ 372,700 | $ 394,400 |

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