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Employee Benefit Plans (Details 5) (Employee Pension Plans, USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Pension Plan Assets |  |  |
Fair value of plan assets | $ 72,617 | $ 66,137 | $ 62,105
Quoted prices in active markets (Level 1) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 21,523 | 18,575 |
Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 27,370 | 25,909 |
Significant unobservable inputs (Level 3) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 23,724 | 21,653 | 29,729
Cash and Cash Equivalents |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 3,762 | 4,386 |
Cash and Cash Equivalents | Quoted prices in active markets (Level 1) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 3,762 | 4,386 |
Fixed Income |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 4,000 | 3,368 |
Fixed Income | Quoted prices in active markets (Level 1) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 4,000 | 3,368 |
Mutual Funds |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 13,234 | 8,230 |
Mutual Funds | Quoted prices in active markets (Level 1) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 13,234 | 8,230 |
Equity Partnerships |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 6,876 | 5,823 |
Equity Partnerships | Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 6,876 | 5,823 |
Hedge Funds, Cash |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 527 | 2,591 |
Hedge Funds, Cash | Quoted prices in active markets (Level 1) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 527 | 2,591 |
Hedge Fund Investments, Long-Short Equity Fund |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 26,221 | 19,818 |
Hedge Fund Investments, Long-Short Equity Fund | Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 14,566 | 9,826 |
Hedge Fund Investments, Long-Short Equity Fund | Significant unobservable inputs (Level 3) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 10,863 | 9,992 | 12,821
Hedge Fund Investments, Event Driven Fund |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 14,680 | 13,694 |
Hedge Fund Investments, Event Driven Fund | Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 5,928 | 6,542 |
Hedge Fund Investments, Event Driven Fund | Significant unobservable inputs (Level 3) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 8,863 | 7,152 | 7,126
Hedge Funds, Distressed Credit |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 1,429 | 5,388 |
Hedge Funds, Distressed Credit | Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets |  | 2,829 |
Hedge Funds, Distressed Credit | Significant unobservable inputs (Level 3) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 2,199 | 2,559 | 6,252
Hedge Fund Investments, Multi-Strategy Fund |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | 1,888 | 2,839 |
Hedge Fund Investments, Multi-Strategy Fund | Significant other observable inputs (Level 2) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets |  | 889 |
Hedge Fund Investments, Multi-Strategy Fund | Significant unobservable inputs (Level 3) |  |  |
Pension Plan Assets |  |  |
Fair value of plan assets | $ 1,799 | $ 1,950 | $ 3,530

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + 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) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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