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Capital structure - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 27, 2022 | Aug. 31, 2019 | Dec. 31, 2022 | Dec. 31, 2020 | Dec. 31, 2021 | Jun. 30, 2021
Common stock |  |  |  |  |  |
Net consideration received on transaction |  |  |  | $ 28,100 |  |
Number of shares issued in transaction (in shares) |  |  | 0 | 542,470 |  |
Price per share (in USD per share) |  |  |  | $ 53.37 |  |
Issuance of common stock related to rights exchange |  |  |  | $ 150,528 |  |
Issuance of common stock related to acquisition |  |  |  | $ 42,869 |  |
Common stock, authorized shares (in shares) |  |  | 250,000,000 | 125,000,000 | 250,000,000 | 250,000,000
Maximum |  |  |  |  |  |
Common stock |  |  |  |  |  |
Aggregate value of remaining shares to be issued and sold |  |  | $ 93,000 |  |  |
Common stock |  |  |  |  |  |
Common stock |  |  |  |  |  |
Common stock, authorized shares (in shares) |  |  | 250,000,000 |  |  |
Stock Purchase Agreement |  |  |  |  |  |
Common stock |  |  |  |  |  |
Net consideration received on transaction | $ 50,000 |  |  |  |  |
Number of shares issued in transaction (in shares) | 1,095,290 |  |  |  |  |
Price per share (in USD per share) | $ 45.65 |  |  |  |  |
Number of days within which to register stock sale with the SEC per terms of the agreement | 60 days |  |  |  |  |
Period of time from the closing date that the entity agrees to keep the stock sale registration effective | 6 months |  |  |  |  |
Period of time from the closing date that the purchaser agrees not to resell or transfer entity's stock without written approval | 90 days |  |  |  |  |
Stock Purchase Agreement | Minimum |  |  |  |  |  |
Common stock |  |  |  |  |  |
Threshold percent of tender offer by a third party to purchase the Company's stock that would terminate the 'Standstill Restrictions' in effect under the stock purchase agreement | 50.00% |  |  |  |  |
Censa [Member] |  |  |  |  |  |
Common stock |  |  |  |  |  |
Issuance of common stock related to acquisition (in shares) |  |  |  | 845,364 |  |
Issuance of common stock related to acquisition |  |  |  | $ 42,900 |  |
Rights Exchange Agreement |  |  |  |  |  |
Common stock |  |  |  |  |  |
Issuance of common stock related to rights exchange (in shares) |  |  |  | 2,821,176 |  |
Issuance of common stock related to rights exchange |  |  |  | $ 150,500 |  |
Sales Agreement | Common stock | Maximum |  |  |  |  |  |
Common stock |  |  |  |  |  |
Net consideration received on transaction |  | $ 125,000 |  |  |  |

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