Pension Plan - Summary of Pension Expense Composed of Components Included in Cost of Goods Sold and Selling, General and Administrative Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2025	May 31, 2024
Components of net periodic benefit cost
Service cost	$ 151	$ 166
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Income (Loss)	Operating Income (Loss)
Interest cost	$ 650	$ 649
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Income (Loss)	Operating Income (Loss)
Expected return on plan assets	$ (710)	$ (755)
Amortization of:
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Income (Loss)	Operating Income (Loss)
Unrecognized net loss	$ 366	$ 436
Net periodic benefit cost	$ 457	$ 496