Summary of Significant Accounting Policies and New Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Goodwill	$ 75,337	$ 37,024	$ 31,679
Minimum Percentage Required To Recognize Tax Benefit	50.00%
Deposits Related To Restricted Investments	$ 14,511	18,992
Assets Held-for-sale, at Carrying Value		4,344
Accrual for Environmental Loss Contingencies, Discount	$ 353	$ 358
Accrual for Environmental Loss Contingencies, Discount Rate	2.90%	3.10%
Accrual for Environmental Loss Contingencies, Gross	$ 9,438	$ 9,537
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent		50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent	6.00%	4.00%
Discretionary Match of Employee Contribution Based on Company's Preformance		2.00%
Total Contributions Paid to Employee Benefit Plan	$ 7,423	$ 6,163	$ 4,005
Minimum
Percentage of Proceeds Resulting From Long-Term Restricted Investments	5.00%
One-Year Constant Maturity U.S. Treasury Bill Rate	0.10%	0.10%
Minimum \| Software and Software Development Costs
Capitalized Software, Useful Life	3 years	3 years	3 years
Maximum
Percentage of Proceeds Resulting From Long-Term Restricted Investments	10.00%
One-Year Constant Maturity U.S. Treasury Bill Rate	0.28%	0.28%
Maximum \| Software and Software Development Costs
Capitalized Software, Useful Life	5 years	5 years	5 years

Basic and discretionary employer contributions paid to employees participating in the Defined Contribution Plan.

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Deposits which earn interest annually at the U.S. Treasury Bill rate.

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Discretionary Match of Employee Contribution Based on Company's Performance

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The minimum percentage of likelihood that a tax benefit will be realized in order to record the tax impact.

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One-Year Constant Maturity U.S. Treasury Bill Rate

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Percentage of Exit Strategy contracts that are remitted by the Company.

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Amount of imputed interest necessary to reduce (reconcile) the undiscounted amount of the accrual for environmental loss contingencies to the present value.

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Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Undiscounted amount of the accrual for environmental loss contingencies.

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Amount of assets held-for-sale that are not part of a disposal group.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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