Amount remaining of a stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Stockholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Sep. 30, 2019
Stockholders Equity Note [Line Items]
Remaining authorized repurchases under share repurchase program	$ 45.9
Stock Repurchase Programs 2019
Stockholders Equity Note [Line Items]
Aggregate amount of common stock authorized for repurchase		$ 500.0