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Stock-Based Compensation (Details) - 2013 Plan - shares	Jun. 30, 2015	Apr. 30, 2013
Stock-based compensation
Maximum number of shares available under the Plan		6,500,000
Stock Options
Stock-based compensation
Number of shares counted by each award	1
Stock Appreciation Rights
Stock-based compensation
Number of shares counted by each award	1
Stock-settled award other than an option, stock appreciation right or award for which the recipient pays intrinsic value
Stock-based compensation
Number of shares counted by each award	1.75

X

- Definition

Represents the number of shares counted by each award against the aggregate share limit.

+ References

No definition available.

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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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- Definition

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



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (a)(3)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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