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Shareholders' equity | 9 Months Ended
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Sep. 30, 2023
Stockholders' Equity Note [Abstract] |
Shareholders' equity | In October 2018, our board of directors authorized the repurchase of up to $500,000 of our common stock. This authorization has no expiration date. No shares were repurchased under this authorization during the nine months ended September 30, 2023 or September 30, 2022, and $287,452 remained available for repurchase as of September 30, 2023.

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