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Commitments and Contingencies (Details) € in Thousands |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended |
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Feb. 16, 2023 USD ($) patent | Sep. 02, 2022 EUR (€) | Jun. 07, 2022 EUR (€) | Jun. 02, 2022 USD ($) | Dec. 13, 2021 USD ($) | Jul. 21, 2021 patent | Dec. 18, 2020 patent | Dec. 04, 2020 patent | Sep. 30, 2020 patent | Jan. 10, 2020 USD ($) patent | Nov. 06, 2019 USD ($) patent | Jul. 31, 2019 patent | Aug. 17, 2018 patent | Jul. 07, 2018 patent | May 31, 2022 USD ($) patent | Mar. 31, 2021 patent | Sep. 30, 2020 patent | Jan. 26, 2021 patent | Mar. 31, 2023 USD ($) | Feb. 23, 2021 patent | Mar. 31, 2023 USD ($) | Jun. 19, 2020 USD ($)
Maplebear, Inc (dba Instacart) | Subscription to Mobile Verify Advance Service |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual commitment amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,200,000
Pending Litigation | General and administrative |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal fees | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  | $ 700,000 |
Pending Litigation | UrbanFT |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents allegedly infringed |  |  |  |  |  |  | 2 |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |
Number of invalid patents |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents not infringed |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global Equity & Corporate Consulting, S.L. | HooYu | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  | € 800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 800,000 |
Global Equity & Corporate Consulting, S.L.- Breach of Services Agreement | ICAR Vision Systems S.L. | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement interest percentage |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement interest | € |  | € 1,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Claims against escrow funds | € |  | 900 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit | € |  | 200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, receivable | € |  | 16,475 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement, expense | € |  | € 10,995 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
USAA | Pending Litigation | Wells Fargo |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents allegedly infringed |  |  |  |  |  |  |  |  |  | 2 | 3 |  | 5 | 4 |  |  | 2 |  |  | 4 |  |
Number of patents infringed (at least) |  |  |  |  |  |  |  |  |  | 1 | 1 |  |  |  |  |  |  |  |  |  |  |
Amount awarded in damages to other party | $ |  |  |  |  |  |  |  |  |  | $ 102,000,000 | $ 200,000,000 |  |  |  |  |  |  |  |  |  |  |
Number of patents dropped |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Number of invalid patents |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |
Number of patents instituted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |
Number of patents denied institution petition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |
USAA | Pending Litigation | PNC Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents allegedly infringed |  |  |  |  |  |  |  | 2 | 2 |  |  |  |  |  | 1 |  |  |  |  |  |  |
Amount awarded in damages to other party | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 218,000,000 |  |  |  |  |  |  |
Number of patents denied institution petition |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
USAA | Settled Litigation | PNC Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents infringed (at least) | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount awarded in damages to other party | $ | $ 4,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UrbanFT | Settled Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount awarded from other parties | $ |  |  |  | $ 2,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UrbanFT | Settled Litigation | Compensatory Damages |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount awarded from other parties | $ |  |  |  | 1,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UrbanFT | Settled Litigation | Costs Of Judgement Awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount awarded from other parties | $ |  |  |  | 2,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UrbanFT | Settled Litigation | Attorneys' Fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount awarded from other parties | $ |  |  |  | $ 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maplebear, Inc (dba Instacart) | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency amount claimed | $ |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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