Stock Based Compensation Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense for stock-based compensation	$ 6,950	$ 4,723	$ 3,251
Restricted Stock Plan Expense	6,364	4,209	2,347
Share-based Compensation Arrangement by Share-based Payment Award, Description	Oct. 29, 1996
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	700
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Description	Sep. 23, 2005
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	6
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights	1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4
Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Termination of Employment	30
Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Retirement	3
Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Death	1
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	18,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Termination Date	Oct. 29, 2006
Weighted Average Grant Date Fair Value			$ 8.90
Compensation expense yet to be recognized	0
Weighted average remaining contractual term	2.20
Tax Benefit from Stock Options Exercised	3,631	2,298	4,666
Intrinsic value of stock options exercised	9,654	6,342	12,694
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	4
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After One Year	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After Two Years	50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After Three Years	75.00%
Share-based Compensation Arrangement by Share-based Payment Award, Termination After Grant Date	10
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Originally Authorized	13,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Per Director	100
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Description	Aug. 20, 2010
Compensation expense yet to be recognized	7,067
Compensation expense yet to be recognized, period for recognition	1.78
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Description	Nov. 01, 2005
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	7
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	3,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum	3
Compensation expense yet to be recognized	$ 2,537
Compensation expense yet to be recognized, period for recognition	1.02

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Share-based Compensation Arrangement by Share-based Payment Award, Maximum Per Director

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Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Originally Authorized

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Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After One Year

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Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After Three Years

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Share-based Compensation Arrangement by Share-based Payment Award, Percent Vesting After Two Years

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Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Death

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Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Retirement

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Share-based Compensation Arrangement by Share-based Payment Award, Termination Period After Termination of Employment

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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- Definition

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Description of the estimated period of time over which an employee is required to provide service in exchange for the equity-based payment award, which often is the vesting period. This period may be explicit or implicit based on the terms of the award, and may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year).

+ References

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Description of the period of time over 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, which may be expressed in a variety of ways (for example, in years, month and year).

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The maximum vesting term over 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.

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The minimum vesting term over 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.

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No definition available.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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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).

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-Publisher FASB

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-Number 123R

-Paragraph A240

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- Definition

The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Reductions in the entity's income taxes that arise when compensation cost (from non-qualified stock options) recognized on the entity's tax return exceeds compensation cost from non-qualified stock options recognized on the income statement. This element increases net cash provided by operating activities.

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