Sales Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 373,301	$ 135,083	$ 987,145	$ 395,732
Industrial
Disaggregation of Revenue [Line Items]
Revenues	37,330	28,367	118,457	87,061
Consumer
Disaggregation of Revenue [Line Items]
Revenues	29,864	0	78,972	0
Transportation
Disaggregation of Revenue [Line Items]
Revenues	33,597	24,315	98,715	75,189
Electrical/Utility
Disaggregation of Revenue [Line Items]
Revenues	26,131	20,262	69,100	55,402
Other
Disaggregation of Revenue [Line Items]
Revenues	41,063	29,720	128,328	87,062
Construction
Disaggregation of Revenue [Line Items]
Revenues	$ 205,316	$ 32,419	$ 493,573	$ 91,018