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Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Mar. 31, 2020
Equity [Abstract]
Shares approved to repurchase		10,000,000
Shares purchased	6,267,021
Aggregate purchase price	$ 103.6
Remaining shares available for future purchases under share repurchase program, amount	$ 9.9

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Amount remaining of a stock repurchase plan authorized.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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-Topic 210
-SubTopic 10
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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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