Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 122,265	$ 126,902	$ 248,124	$ 251,070
Injection Molding
Segment Reporting Information [Line Items]
Total revenue	48,819	53,355	100,767	106,753
CNC Machining
Segment Reporting Information [Line Items]
Total revenue	48,297	48,222	96,401	94,320
3D Printing
Segment Reporting Information [Line Items]
Total revenue	21,005	19,963	42,330	39,635
Sheet Metal
Segment Reporting Information [Line Items]
Total revenue	3,939	5,160	8,187	9,847
Other Revenue
Segment Reporting Information [Line Items]
Total revenue	$ 205	$ 202	$ 439	$ 515