Selected Quarterly Financial Data (Tables)

12 Months Ended

Mar. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Below is selected quarterly financial data for fiscal 2018 and 2017:

	Three Months Ended
	June 30, 2017		September 30, 2017		December 31, 2017			March 31, 2018
Net sales	$	203,726	$	212,828	$	208,725		$	214,140
Gross profit	69,308		71,619		69,045			74,602
Income (loss) from operations	20,015		19,587		14,173			16,324
Net income (loss)	$	11,656	$	12,508	$	(10,565	)	$	8,466
Net income (loss) per share – basic	$	0.52	$	0.55	$	(0.46	)	$	0.37
Net income (loss) per share – diluted	$	0.51	$	0.54	$	(0.46	)	$	0.36

	Three Months Ended
	June 30, 2016		September 30, 2016		December 31, 2016		March 31, 2017
Net sales	$	149,013	$	151,925	$	152,497	$	183,688
Gross profit	48,047		49,729		44,821		50,335
Income from operations	11,201		12,619		5,317		(3,164		)
Net income (loss)	$	6,401	$	6,816	$	505	$	(4,738	)
Net income (loss) per share – basic	$	0.32	$	0.34	$	0.02	$	(0.22	)
Net income (loss) per share – diluted	$	0.32	$	0.33	$	0.02	$	(0.22	)