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Common Stock - Narrative (Details) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 08, 2021 USD ($) $ / shares shares | Nov. 03, 2020 USD ($) shares | Oct. 05, 2020 USD ($) tradingDay $ / shares shares | Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2020 USD ($)
Subsequent Event [Line Items] |  |  |  |  |  |
Payments for common stock issuance costs | $ |  |  |  | $ 4,300 | $ 4,314 | $ 0
Warrants to purchase (in shares) | shares | 500,000 |  |  | 500,000 | 500,000 |
Warrant, exercise price (in dollars per share) | $ / shares | $ 76.50 |  |  | $ 76.50 | $ 76.50 |
Warrant exercise period |  |  |  |  | 5 years |
Issuance of common stock upon the exercise of stock options (in shares) | shares |  |  |  |  | 54,000 |
Proceeds from exercise of stock options | $ |  |  |  |  | $ 617 | $ 42
Punchh Inc. |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Equity interest issued (in shares) | shares | 1,493,130 |  |  |  |  |
Warrant |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Derivative, fair value | $ | $ 14,300 |  |  |  |  |
Private Placement |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Sale of stock, consideration received on transaction | $ | $ 160,000 |  |  |  |  |
Number of shares issued in transaction (in shares) | shares | 2,352,942 |  |  |  |  |
Payments for common stock issuance costs | $ | $ 4,300 |  |  |  |  |
Private Placement | PAR Act III, LLC |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares | 73,530 |  |  |  |  |
Consideration received per transaction | $ | $ 5,000 |  |  |  |  |
Sale of stock (in dollars per share) | $ / shares | $ 68.00 |  |  |  |  |
Private Placement | T. Rowe Price Associates, Inc. |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares | 2,279,412 |  |  |  |  |
Consideration received per transaction | $ | $ 155,000 |  |  |  |  |
Sale of stock (in dollars per share) | $ / shares | $ 68.00 |  |  |  |  |
Public Offering |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Sale of stock, consideration received on transaction | $ |  |  | $ 121,800 |  |  |
Number of shares issued in transaction (in shares) | shares |  |  | 3,350,000 |  |  |
Sale of stock (in dollars per share) | $ / shares |  |  | $ 38.00 |  |  |
Over-Allotment Option |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares |  |  | 502,500 |  |  |
Sale of stock (in dollars per share) | $ / shares |  |  | $ 38.00 |  |  |
Number of days available to purchase additional shares | tradingDay |  |  | 30 |  |  |
Issuance of common stock upon the exercise of stock options (in shares) | shares |  | 266,022 |  |  |  |
Proceeds from exercise of stock options | $ |  | $ 9,600 |  |  |  |

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