Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Sep. 30, 2021	Mar. 31, 2021	Aug. 31, 2019
Stockholders Equity Note [Abstract]
Class B Preferred Stock, Authorized	1,000,000	1,000,000
Class B Preferred Stock, par value	$ 0.01	$ 0.01
Class B Preferred Stock, Issued	0	0
Class B Preferred Stock, outstanding	0	0
Stock repurchase program, authorized amount			$ 200.0
Stock repurchase program, remaining authorized repurchase amount	$ 103.8