Revenue - Revenue by discipline & geographical areas (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue
Total Revenue	$ 229,175	$ 176,694	$ 653,947	$ 456,744
North America
Disaggregation of Revenue
Total Revenue	36,036	11,847	95,633	31,560
Asia Pacific
Disaggregation of Revenue
Total Revenue	166,342	137,870	484,286	357,903
Europe
Disaggregation of Revenue
Total Revenue	26,797	26,977	74,028	67,281
Systems
Disaggregation of Revenue
Total Revenue	171,092	126,166	488,243	307,295
Aftermarket
Disaggregation of Revenue
Total Revenue	$ 58,083	$ 50,528	$ 165,704	$ 149,449