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v3.22.1

Related Party Transactions - Additional Information (Details) |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 20, 2021 USD ($) $ / shares shares | Jan. 27, 2020 USD ($) $ / shares shares | Apr. 26, 2019 $ / shares | Dec. 31, 2021 USD ($) $ / shares | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) yr shares | Dec. 31, 2019 USD ($) | Aug. 09, 2021 USD ($) | Oct. 17, 2018 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Tax receivable agreement, amount payable, current |  |  |  |  | $ 5,107,000 |  | $ 5,107,000 | $ 4,791,000 |  |  |
Tax receivable agreement, amount payable, non-current |  |  |  |  | 56,615,000 |  | 56,615,000 | 67,869,000 |  |  |
Reduction to tax receivable agreement liability |  |  |  |  |  |  |  |  | $ 2,940,000 |  |
Payment for share repurchase |  |  |  |  |  |  | 100,000,000 |  |  |  |
Revenue |  |  |  |  |  |  | $ 550,590,000 | 393,593,000 | 448,737,000 |  |
Overallotment Option |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional common stock purchased | shares |  | 1,200,000 |  |  |  |  |  |  |  |  |
Offering price per share | $ / shares |  | $ 14.75 |  |  |  |  |  |  |  |  |
Proceeds from secondary offering |  | $ 0 |  |  |  |  |  |  |  |  |
Percentage of common stock share outstanding held |  |  |  |  |  |  | 5.10% |  |  |  |
Common Class A |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of common stock sold in secondary offering | shares |  | 8,000,000 |  |  |  |  |  |  |  |  |
Common Class A | Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized amount |  |  |  |  |  |  |  |  |  | $ 100,000 |
Payment for share repurchase |  |  |  |  |  |  | $ 100,000,000 |  |  |  |
Decrease in additional paid in capital, stock issuance costs |  |  |  |  |  |  | 72,000,000.0 |  |  |  |
Increase in Accumulated Deficit, Stock Issued, Issuance Costs |  |  |  |  |  |  | $ 28,000,000.0 |  |  |  |
Platinum Stockholder | Common Class A | Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price | $ / shares |  | $ 14.60 |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares | shares |  | 6,849,315 |  |  |  |  |  |  |  |  |
Platinum Stockholder | Common Stock Price Greater than $13.00 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price | $ / shares |  |  |  | $ 13.00 |  |  |  |  |  |  |
Platinum Stockholder | Common Stock Price Greater than $15.50 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price | $ / shares |  |  | $ 15.50 |  |  |  |  |  |  |  |
Redflex Irish Investments Pty Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of Non-Voting Interest Acquired |  |  |  |  |  |  | 16.00% |  |  |  |
Cost method investment |  |  |  |  | 3,700,000 |  | $ 3,700,000 |  |  |  |
Revenue |  |  |  |  |  |  | 500,000 |  |  |  |
Dividend income |  |  |  |  |  |  | $ 300,000 |  |  |  |
Minimum | Platinum Stockholder | Common Stock Price Greater than $13.00 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  |  | 10 days |  |  |  |  |  |  |
Minimum | Platinum Stockholder | Common Stock Price Greater than $15.50 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  | 10 days |  |  |  |  |  |  |  |
Maximum | Platinum Stockholder | Common Stock Price Greater than $13.00 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  |  | 20 days |  |  |  |  |  |  |
Maximum | Platinum Stockholder | Common Stock Price Greater than $15.50 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  | 20 days |  |  |  |  |  |  |  |
Selling, General and Administrative Expenses | Overallotment Option |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Expense incurred in secondary offering |  | $ 400,000 |  |  |  |  |  |  |  |  |
Verra Mobility Business Combination |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Tax Receivable Agreement, portion of net cash savings paid out |  |  |  |  |  |  | 50.00% |  |  |  |
Tax Receivable Agreement, portion of net cash savings retained |  |  |  |  |  |  | 50.00% |  |  |  |
Estimated maximum benefit to be paid to tax receivable agreement |  |  |  |  | 70,000,000.0 |  | $ 70,000,000.0 |  |  |  |
Tax receivable agreement, amount payable |  |  |  |  | 61,700 |  | 61,700 |  |  |  |
Tax receivable agreement, amount payable, current |  |  |  |  | 5,100,000 |  | 5,100,000 |  |  |  |
Tax receivable agreement, amount payable, non-current |  |  |  |  | 56,600 |  | 56,600 |  |  |  |
Tax receivable agreement, amount paid, current |  |  |  |  | 5,100,000 | $ 4,800,000 |  |  |  |  |
Increase (decrease) to payable related to tax receivable agreement adjustment |  |  |  |  |  |  | (1,000,000.0) | $ 6,800,000 | (100,000) |  |
Contingency period |  |  |  |  |  |  |  | 5 years |  |  |
Increase Decrease To Payable Related To Tax Receivable Agreement Adjustment |  |  |  |  |  |  | (1,000,000.0) | $ 6,800,000 | $ (100,000) |  |
Verra Mobility Business Combination | Platinum Stockholder | Common Stock Price Greater than $13.00 and $15.50 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issuable if condition met | shares |  |  | 5,000,000 |  |  |  |  |  |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Common Stock Price Greater than $13.00 and $15.50 | Common Stock Including Additional Paid in Capital |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issued value |  |  | $ 36,600,000 |  |  |  |  |  |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Common Stock Price Greater than $13.00 | Potential Future Shares |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issued value |  |  |  |  |  |  |  | 0 |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Common Stock Price Greater than $15.50 | Common Stock Contingent Consideration |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issued value |  |  | $ 36,600,000 |  |  |  |  |  |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Common Stock Price Greater than $15.50 | Potential Future Shares |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issued value |  |  |  |  |  |  |  | $ 5,000,000.0 |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Earn-Out Agreement |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  | $ 36,600 |  | $ 36,600 |  |  |  | $ 73,150,000
Term of volatility and risk free rates utilizing a peer group | yr |  |  |  |  |  |  |  | 5 |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Earn-Out Agreement | Earn-Out Scenario Five |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issuable if condition met | shares |  |  |  |  |  |  |  | 0 |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Earn-Out Agreement | Common Stock Price Greater than $13.00 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issuable if condition met | shares |  |  |  |  |  |  | 2,500,000,000 |  |  |  |
Common stock price | $ / shares | [1] |  |  |  | $ 13.00 |  | $ 13.00 |  |  |  |
Verra Mobility Business Combination | Platinum Stockholder | Earn-Out Agreement | Common Stock Price Greater than $15.50 |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issuable if condition met | shares |  |  |  |  |  |  | 2,500,000,000 |  |  |  |
Common stock price | $ / shares | [1] |  |  |  | $ 15.50 |  | $ 15.50 |  |  |  |
Verra Mobility Business Combination | Minimum |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  |  |  |  |  |  | 10 days |  |  |
Verra Mobility Business Combination | Maximum |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock price threshold trading days |  |  |  |  |  |  |  | 20 days |  |  |
Verra Mobility Business Combination | Maximum | Platinum Stockholder | Earn-Out Agreement |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earn-out shares issuable if condition met | shares |  |  |  |  |  |  |  | 10,000,000 |  |  |
[1] | The first and second tranches of Earn-Out Shares have been issued, as discussed below.

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