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Postretirement Benefits (Tables) (Postretirement Benefits [Member]) | 6 Months Ended
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Dec. 31, 2014
Postretirement Benefits [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Components Of Net Periodic Benefit Cost | The following table summarizes the components of net periodic benefit cost for our postretirement plans:
| Three Months Ended December 31, |  | Six Months Ended December 31,
| 2014 |  | 2013 |  | 2014 |  | 2013
Components of net periodic benefit cost |  |  |  |  |  |  |
Service cost | $ | 8 |  |  | $ | 8 |  |  | $ | 16 |  |  | $ | 16 |
Interest cost | 27 |  |  | 32 |  |  | 54 |  |  | 64 |
Amortization of unrecognized net gain | (7 | ) |  | (7 | ) |  | (14 | ) |  | (14 | )
Amortization of prior service asset | (1 | ) |  | (1 | ) |  | (2 | ) |  | (2 | )
Net periodic benefit cost | $ | 27 |  |  | $ | 32 |  |  | $ | 54 |  |  | $ | 64 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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 (h) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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