Property and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Jan. 31, 2025
Schedule Of Property Plant And Equipment Abstract
Land and improvements	$ 34,112	$ 34,112
Buildings and improvements	24,218	24,026
Machinery, equipment, and fixtures	319,568	318,399
Construction in progress	100,954	94,010
Total property and equipment	478,852	470,547
Less: Accumulated depreciation	(263,247)	(259,864)
Total	$ 215,605	$ 210,683