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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2024
Revenue |
Schedule of revenue by discipline | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, | ​
​ | ​ | 2024 | ​ | 2023 | ​
​ | ​ | (in thousands) | ​
Systems | ​ | $ | 195,432 | ​ | $ | 195,198 | ​
Aftermarket | ​ | ​ | 56,940 | ​ | ​ | 58,822 | ​
Total Revenue | ​ | $ | 252,372 | ​ | $ | 254,020 | ​
Schedule of revenue by geographic markets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, | ​
​ | ​ | 2024 | ​ | 2023 | ​
​ | ​ | (in thousands) | ​
North America | ​ | $ | 45,503 | ​ | $ | 45,166 | ​
Asia Pacific | ​ | ​ | 188,217 | ​ | ​ | 191,103 | ​
Europe | ​ | ​ | 18,652 | ​ | ​ | 17,751 | ​
Total Revenue | ​ | $ | 252,372 | ​ | $ | 254,020 | ​
Schedule of Contract liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ | ​ | 2024 | ​ | 2023
​ | ​ | (in thousands)
Contract liabilities | ​ | $ | 208,418 | ​ | $ | 210,885
​ | ​ | ​ | ​ | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, |
​ | ​ | 2024 | ​ | 2023 | ​
​ | ​ | (in thousands) | ​
Balance, beginning of the period | ​ | $ | 210,885 | ​ | $ | 154,777 | ​
Deferral of revenue | ​ | ​ | 42,974 | ​ | ​ | 88,048 | ​
Recognition of deferred revenue | ​ | ​ | (45,441) | ​ | ​ | (41,100) | ​
Balance, end of the period | ​ | $ | 208,418 | ​ | $ | 201,725 | ​

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