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Pension Benefits (Narrative) (Details) - Pension Benefits [Member] | 12 Months Ended
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Jun. 30, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Minimum length of investment horizon (in years) | 10 years
Estimated employer contributions to pension plans in next fiscal year | $ 0

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- Definition Minimum number of years in investment horizon for defined benefit pension plan assets in consideration of the average age of the plans' participants. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + 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 (g) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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Balance Type: | debit
Period Type: | duration

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- Details
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