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Employee Benefit Plans - Significant actuarial assumptions for plan (Details 3) | 12 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate [Roll Forward] |  |  |
Discount rate for service and interest | 4.60% | 4.50% | 5.00%
Expected rate of return on plan assets | 6.10% | 6.70% | 7.00%
Discount rate for year-end benefit obligation | 3.90% | 4.60% | 4.50%
Minimum |  |  |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate [Roll Forward] |  |  |
Rate of compensation increase | 3.00% | 3.00% | 3.00%
Maximum |  |  |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate [Roll Forward] |  |  |
Rate of compensation increase | 6.00% | 6.00% | 4.50%

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition The interest rate used to adjust for the time value of money for the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512046 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Expected rate of compensation increases (for pay-related plans). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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