Aggregate number of common shares reserved for future issuance.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Net number of non-option equity instruments granted to participants.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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Stock-Based Compensation (2017 Omnibus Plan) - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	May 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards	$ (391)	$ (92)
2017 Omnibus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards, Shares	100,000
Restricted stock awards	$ 4,100
Number of nonqualified stock options granted	200,000
Number of stock options granted, Value	$ 3,200
2017 Omnibus Plan [Member] \| Performance Shares [Member] \| IWT [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of performance units granted	0
2017 Omnibus Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock approved for issuance			3,500,000