Carrying value as of the balance sheet date of obligations related to share based compensation.

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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
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-Publisher FASB
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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
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-SubTopic 10
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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

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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
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-Section 50
-Paragraph 2
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- Definition

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

+ References

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

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (c)(2)(iii)(3)
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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).

+ References

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

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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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

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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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.

+ References

No definition available.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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

Percentage of vesting of share-based compensation awards.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Stock-Based Compensation Plans (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016	Apr. 30, 2014
Stock-Based Compensation Plans
Number of common shares reserved for issuance under the Equity Incentive Plan				2,850,000
Restricted stock awards
Stock-Based Compensation Plans
Accrued stock-based compensation			$ 0.5
Unrecognized compensation cost	$ 6.4
Weighted average life over which unrecognized compensation is expected to be recognized	1 year 6 months 4 days
Number of Shares
Unvested at the beginning of the period (in shares)	1,114,625	929,000
Granted (in shares)	297,960	284,708
Vested (in shares)	(481,538)	(97,208)
Forfeited (in shares)	(12,703)	(1,875)
Unvested at the end of the period (in shares)	918,344	1,114,625	929,000
Weighted-Average Grant-Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 17.72	$ 19.70
Granted (in dollars per share)	7.36	7.82
Vested (in dollars per share)	15.42	7.82
Forfeited (in dollars per share)	10.39	7.82
Unvested at the end of the period (in dollars per share)	$ 15.67	$ 17.72	$ 19.70
Restricted stock awards \| General and administrative expenses
Stock-Based Compensation Plans
Stock-based compensation expense	$ 5.1	$ 4.4	$ 4.1
Restricted stock awards \| Vest immediately
Stock-Based Compensation Plans
Vesting (as a percent)	25.00%	25.00%
Restricted stock awards \| Vest one year after grant
Stock-Based Compensation Plans
Vesting (as a percent)	25.00%	25.00%
Vesting period	1 year	1 year
Restricted stock awards \| Vest two years after grant
Stock-Based Compensation Plans
Vesting (as a percent)	25.00%	25.00%
Vesting period	2 years	2 years
Restricted stock awards \| Vest three years after grant
Stock-Based Compensation Plans
Vesting (as a percent)	25.00%	25.00%
Vesting period	3 years	3 years
Certain officers and employees \| Restricted stock awards
Stock-Based Compensation Plans
Number of common shares reserved for issuance under the Equity Incentive Plan	259,800	250,000
Non-executive director \| Restricted stock awards
Number of Shares
Granted (in shares)	31,800	31,770	0
Non-employee consultant \| Restricted stock awards
Number of Shares
Granted (in shares)	6,360	2,938	0