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- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value2

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- Definition

Represents percentage of restricted stock units granted that each recipient may vest.

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Share-Based Compensation, Number of Tranches

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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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Percentage of vesting of award under share-based payment arrangement.

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STOCKHOLDERS' EQUITY: - Performance-based restricted stock units (Details) - Restricted stock units $ in Thousands	12 Months Ended
	Mar. 31, 2020 USD ($) shares	Mar. 31, 2019 USD ($) shares	Mar. 31, 2018 USD ($) numberOfIncrement shares
Performance stock
Share-based compensation
Granted (in shares)	202,818	534,438	389,065
Aggregate fair value of restricted stock units granted \| $	$ 12,300	$ 22,000	$ 10,100
Forfeited in period (in shares)	51,560
The total fair value of performance-based restricted stock units \| $		$ 2,200	$ 14,100
Performance Shares Vesting Total Shareholder Return
Share-based compensation
Granted (in shares)	60,844
Aggregate fair value of restricted stock units granted \| $	$ 4,400
Performance Shares Vesting Total Shareholder Return \| Minimum
Share-based compensation
Award vesting rights percentage	0.00%
Performance Shares Vesting Total Shareholder Return \| Maximum
Share-based compensation
Award vesting rights percentage	200.00%
Vesting Based On Relevant Performance Period For First Performance Plan At March 31, 2019
Share-based compensation
Granted (in shares)		186,539
Aggregate fair value of restricted stock units granted \| $		$ 5,800
Vesting Based On Relevant Performance Period For First Performance Plan At March 31, 2019 \| Minimum
Share-based compensation
Equity instrument other than options, percentage of vesting		25.00%
Vesting Based On Relevant Performance Period For First Performance Plan At March 31, 2019 \| Maximum
Share-based compensation
Equity instrument other than options, percentage of vesting		200.00%
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31, 2019
Share-based compensation
Granted (in shares)		347,899
Aggregate fair value of restricted stock units granted \| $		$ 16,200
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31, 2019 \| Minimum
Share-based compensation
Equity instrument other than options, percentage of vesting		0.00%
Vesting Based On Relevant Performance Period For Second Performance Plan At March 31, 2019 \| Maximum
Share-based compensation
Equity instrument other than options, percentage of vesting		200.00%
Share-based Payment Arrangement, Tranche One
Share-based compensation
Granted (in shares)			184,931
Aggregate fair value of restricted stock units granted \| $			$ 5,100
Vesting in period (in shares)		61,330	580,133
Share-based Payment Arrangement, Tranche One \| Minimum
Share-based compensation
Equity instrument other than options, percentage of vesting			0.00%
Share-based Payment Arrangement, Tranche One \| Maximum
Share-based compensation
Equity instrument other than options, percentage of vesting			200.00%
Vesting Based on Relevant Performance Period Over Two Periods at March 31, 2018
Share-based compensation
Granted (in shares)			87,184
Aggregate fair value of restricted stock units granted \| $			$ 2,100
Award vesting rights percentage		50.20%	50.20%
Forfeited in period (in shares)		43,768	43,768
Performance-based Restricted Stock Units Vesting In Three Equal Tranches
Share-based compensation
Granted (in shares)			116,950
Aggregate fair value of restricted stock units granted \| $			$ 2,900
Number of tranches \| numberOfIncrement			3
Performance-based Restricted Stock Units Vesting In Three Equal Tranches \| Minimum
Share-based compensation
Award vesting rights percentage			0.00%
Performance-based Restricted Stock Units Vesting In Three Equal Tranches \| Maximum
Share-based compensation
Award vesting rights percentage			300.00%
Vesting Based on Relevant Performance Period at March 31, 2019
Share-based compensation
Award vesting rights percentage		53.30%	53.30%
Forfeited in period (in shares)		17,562	17,562
Vesting Based on Relevant Performance Period at March 31, 2020
Share-based compensation
Award vesting rights percentage	0.00%	0.00%
Vesting in period (in shares)	18,275
Performance Shares Vesting In Three Equal Annual Increments
Share-based compensation
Granted (in shares)	59,480
Vesting period	3 years