Sales Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 406,710	$ 131,434	$ 613,844	$ 260,650
Industrial
Disaggregation of Revenue [Line Items]
Revenues	41,214	28,862	79,182	65,163
Consumer
Disaggregation of Revenue [Line Items]
Revenues	38,340	0	45,421	0
Transportation
Disaggregation of Revenue [Line Items]
Revenues	36,825	25,337	69,097	49,524
Electrical/Utility
Disaggregation of Revenue [Line Items]
Revenues	24,172	15,996	46,452	39,098
Other
Disaggregation of Revenue [Line Items]
Revenues	45,502	31,008	83,810	41,702
Construction
Disaggregation of Revenue [Line Items]
Revenues	$ 220,657	$ 30,231	$ 289,882	$ 65,163