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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

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-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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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.

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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.

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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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- 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).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Performance target achievement percentage for share-based compensation, equity awards other than options.

+ References

No definition available.

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Stock-based Compensation (Summary) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Stock-based Compensation, Aggregate Disclosures [Abstract]
Stock-based compensation expense	$ 2.7	$ 3.9	$ 4.9	$ 4.6
Performance-based restricted stock [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Performance target achievement percentage			100.00%
Restricted stock [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Shares vested	1,530,139
2004 Stock Incentive Plan [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Shares available for grant	0		0
2011 Stock Incentive Plan [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Shares available for grant	8,098,027		8,098,027
Number of shares authorized for issuance of common stock	14,000,000		14,000,000
2011 Stock Incentive Plan [Member] \| Stock options [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Options outstanding, shares	1,677,081		1,677,081
Vesting period			3 years
2011 Stock Incentive Plan [Member] \| Restricted stock units [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Outstanding, shares	1,273,229		1,273,229
Vesting period			4 years
2011 Stock Incentive Plan [Member] \| Performance-based restricted stock [Member]
Stock-based Compensation, Aggregate Disclosures [Abstract]
Outstanding, shares	1,060,354		1,060,354
Vesting period			4 years