Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2019	Nov. 30, 2018
Income Statement [Abstract]
Revenues	$ 291,139	$ 239,516	$ 816,452	$ 724,539
Costs and Expenses
Cost of Revenue	223,808	189,761	630,328	569,175
Gross margin	67,331	49,755	186,124	155,364
Selling, general and administrative	33,903	26,986	99,515	91,794
Operating income	33,428	22,769	86,609	63,570
Interest expense	3,301	3,723	10,433	11,541
Other (income) expense, net	(743)	309	367	(839)
Income before income taxes	30,870	18,737	75,809	52,868
Income tax expense	8,835	3,342	16,932	10,511
Net income	$ 22,035	$ 15,395	$ 58,877	$ 42,357
Earnings Per Common Share
Basic Earnings Per Share (usd per share)	$ 0.84	$ 0.59	$ 2.25	$ 1.63
Diluted Earnings Per Share (usd per share)	0.84	0.59	2.24	1.62
Common Stock, Dividends, Per Share, Declared	$ 0.17	$ 0.17	$ 0.51	$ 0.51