Represents the number of separate increments over stated number of years.

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Represents the number of years over which fixed percentage increments apply.

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No definition available.

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Represents the percentage of increment over stated number of years.

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No definition available.

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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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No definition available.

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No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-Subparagraph (c)(1)(iv)(3)-(4)
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- Definition

Weighted average price of options that were either forfeited or expired.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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No definition available.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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=96867065&loc=d3e5070-113901

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Number of options vested.

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No definition available.

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- Definition

Value, before forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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No definition available.

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STOCKHOLDERS' EQUITY: - Performance Stock Option Unit Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) item $ / shares shares	Mar. 31, 2016 USD ($)
Share-based compensation
Percentage of increment over two years	3.33333%
Restricted stock units
Share-based compensation
Share-based compensation expense \| $	$ 39,100	$ 33,300	$ 19,400
Restricted stock units \| Performance Stock
Share-based compensation
Vesting percentage	160.00%
Options issued (in shares)	252,760
Performance stock
Share-based compensation
Value of shares granted \| $		$ 4,900
Number of separate increments over 2 years \| item		2
Percentage of increment over two years		50.00%
Number of years for 50% increments		2 years
Share-based compensation expense \| $	$ 500	$ 1,300
Future expense for performance stock option units \| $	$ 1,500
Period for recognition of unrecognized stock-based compensation expense	3 years
Number of shares
Outstanding at beginning of the period (in shares)	555,123
Granted (in shares)	183,322	633,604
Forfeited or cancelled (in shares)	(42,397)
Outstanding at end of the period (in shares)	329,404	555,123
Exercisable at the end of the period (in shares)	0
Weighted-average exercise price per share
Outstanding at the beginning of the period (in dollars per share) \| $ / shares	$ 21.41
Granted (in dollars per share) \| $ / shares	21.41	$ 21.40
Forfeited or cancelled (in dollars per share) \| $ / shares	21.32
Outstanding at the end of the period (in dollars per share) \| $ / shares	21.42	$ 21.41
Exercisable at the end of the period (in dollars per share) \| $ / shares	$ 0.00
Weighted-average remaining contractual term
Outstanding at the end of the period	1 year 7 months 22 days	2 years 1 month 6 days
Aggregate intrinsic value
Outstanding at the end of the period \| $	$ 446
Exercisable at the end of the period \| $	$ 0
Performance stock \| Vesting on first anniversary on closing date \| Minimum
Share-based compensation
Vesting percentage	0.00%
Performance stock \| Vesting on first anniversary on closing date \| Maximum
Share-based compensation
Vesting percentage	300.00%
Performance stock \| Vesting based on relevant performance period at March 31 2017
Share-based compensation
Vesting percentage	0.00%
Number of units reached maturity	164,702