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Pension Plans and Other Postretirement Benefits (Details 2) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
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Jun. 30, 2014
Defined Benefit Plan [Member] |  |
Summary of minimum funding requirement, contributions made and the expected full year contributions for the Company's plans |  |
Minimum funding requirement for 2014 | $ 0 |
Contributions made in the six months ended June 30, 2014 | 0 |
Expected contributions (approximations) for the year ended December 31, 2014 as of the time of : |  |
This Form 10-Q | 2,000 | [1]
2013 Form 10-K | 2,000 | [2]
Supplemental Defined Benefit Plans [Member] |  |
Summary of minimum funding requirement, contributions made and the expected full year contributions for the Company's plans |  |
Contributions made in the six months ended June 30, 2014 | 664 |
Expected contributions (approximations) for the year ended December 31, 2014 as of the time of : |  |
This Form 10-Q | 1,320 | [1]
2013 Form 10-K | 1,320 | [2]
Other Postretirement Benefits [Member] |  |
Summary of minimum funding requirement, contributions made and the expected full year contributions for the Company's plans |  |
Contributions made in the six months ended June 30, 2014 | 93 |
Expected contributions (approximations) for the year ended December 31, 2014 as of the time of : |  |
This Form 10-Q | 217 | [1]
2013 Form 10-K | $ 217 | [2]
[1] | HMEC’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014.
[2] | HMEC’s Annual Report on Form 10-K for the year ended December 31, 2013, specifically “Notes to Consolidated Financial Statements — Note 9 — Pension Plans and Other Postretirement Benefits”.

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- Definition Defined benefit plan and other post retirement plan expected contribution as of last fiscal year end. + References No definition available. + Details
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- Definition Defined benefit plan and other post retirement plan expected contribution full current fiscal year. + References No definition available. + Details
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- Definition Defined benefit plan and other post retirement plan minimum funding required. + References No definition available. + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + 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 (b)(3) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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