Quarterly Financial Information, Unaudited (Tables)

12 Months Ended

Feb. 28, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Quarter ended
	May 31, 2017		August 31, 2017		November 30, 2017			February 28, 2018
	(in thousands, except per share data)
Net sales	$	205,283	$	196,329	$	208,158		$	200,660
Gross profit	47,382		43,800		31,117			38,010
Net income	12,062		9,786		(166		)	23,487
Basic earnings (loss) per share	0.46		0.38		(0.01		)	0.91
Diluted earnings (loss) per share	0.46		0.38		(0.01		)	0.90

	Quarter ended
	May 31, 2016		August 31, 2016		November 30, 2016		February 28, 2017
	(in thousands, except per share data)
Net sales	$	250,366	$	200,790	$	228,116	$	184,266
Gross profit	65,128		42,104		51,297		46,803
Net income	22,189		10,159		16,646		12,270
Basic earnings per share	0.86		0.39		0.64		0.47
Diluted earnings per share	0.85		0.39		0.64		0.47