Change in Estimate	12 Months Ended
Jun. 30, 2014
Accounting Changes and Error Corrections [Abstract]
Change in Estimate	Change in Estimate In October 2013, the regulatory agency charged with oversight of one of the Company’s Exit Strategy projects issued a letter requiring the Company to evaluate modifications to its current site remedy. While it is premature to predict the outcome of this evaluation, the Company’s best estimate of such modifications is $12,439. As a result, the Company updated its estimate to complete for this project during the three months ended September 27, 2013. There were no other significant changes to the estimate to complete for this project since that time. This adjustment resulted in a reduction of gross revenue and NSR of $5,093 and a $7,346 charge to cost of services as a provision for future losses during the fiscal year ended June 30, 2014. Because these additional costs are covered by insurance, the Company also recorded an insurance recoverable of $12,439 during the fiscal year ended June 30, 2014. Therefore, this change in estimate had no impact on operating income or EPS. In February 2014, the regulatory agency charged with oversight of another one of the Company’s Exit Strategy projects requested the addition of a significant alternative remedy with respect to a supplemental feasibility study. While the Company cannot predict which alternative will ultimately be chosen by the regulatory agency, the Company’s best estimate of potential modifications is $4,877. As a result, the Company updated its estimate to complete for this project during the three months ended March 28, 2014. There were no other significant changes to the estimate to complete for this project since that time. This adjustment resulted in a reduction of gross revenue and NSR of $1,855 and a $3,022 charge to cost of services as a provision for future losses during the fiscal year ended June 30, 2014. Because these additional costs are covered by insurance, the Company also recorded an insurance recoverable of $4,877 during the fiscal year ended June 30, 2014. Therefore, this change in estimate had no impact on operating income or EPS.

Change in Estimate

In October 2013, the regulatory agency charged with oversight of one of the Company’s Exit Strategy projects issued a letter requiring the Company to evaluate modifications to its current site remedy. While it is premature to predict the outcome of this evaluation, the Company’s best estimate of such modifications is $12,439. As a result, the Company updated its estimate to complete for this project during the three months ended September 27, 2013. There were no other significant changes to the estimate to complete for this project since that time. This adjustment resulted in a reduction of gross revenue and NSR of $5,093 and a $7,346 charge to cost of services as a provision for future losses during the fiscal year ended June 30, 2014. Because these additional costs are covered by insurance, the Company also recorded an insurance recoverable of $12,439 during the fiscal year ended June 30, 2014. Therefore, this change in estimate had no impact on operating income or EPS.

In February 2014, the regulatory agency charged with oversight of another one of the Company’s Exit Strategy projects requested the addition of a significant alternative remedy with respect to a supplemental feasibility study. While the Company cannot predict which alternative will ultimately be chosen by the regulatory agency, the Company’s best estimate of potential modifications is $4,877. As a result, the Company updated its estimate to complete for this project during the three months ended March 28, 2014. There were no other significant changes to the estimate to complete for this project since that time. This adjustment resulted in a reduction of gross revenue and NSR of $1,855 and a $3,022 charge to cost of services as a provision for future losses during the fiscal year ended June 30, 2014. Because these additional costs are covered by insurance, the Company also recorded an insurance recoverable of $4,877 during the fiscal year ended June 30, 2014. Therefore, this change in estimate had no impact on operating income or EPS.