Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2020	Aug. 31, 2019	Mar. 31, 2019
Stockholders Equity Note [Abstract]
Class B Preferred Stock, par value	$ 0.01		$ 0.01
Class B Preferred Stock, Authorized	1,000,000		1,000,000
Class B Preferred Stock, Issued	0		0
Class B Preferred Stock, outstanding	0		0
Stock repurchase program, authorized amount		$ 200,000
Shares repurchased (in shares)	465,687
Shares repurchased, value	$ 84,879
Stock repurchase program, remaining authorized repurchase amount	$ 115,100