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Employee Benefit Plans (Details 9b) (Other Benefits Plan, USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | ---
Fair Value of plan assets, Ending Balance | $ 20,408 | $ 15,817 | $ 12,890
Fair Value, Level 1 | Mutual Funds - Small Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 97 | 90 |
Fair Value, Level 1 | Mutual Funds - Mid Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 104 | 48 |
Fair Value, Level 1 | Mutual Funds - Mid Cap Growth |  |  |
Fair Value of plan assets, Ending Balance | 290 | 253 |
Fair Value, Level 1 | Mutual Funds - Mid Cap Value |  |  |
Fair Value of plan assets, Ending Balance | 446 | 288 |
Fair Value, Level 1 | Mutual Funds - Large Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 5,270 | 3,406 |
Fair Value, Level 1 | Mutual Funds - Large Cap Growth |  |  |
Fair Value of plan assets, Ending Balance | 902 | 398 |
Fair Value, Level 1 | Mutual Funds - Large Cap Value |  |  |
Fair Value of plan assets, Ending Balance |  | 349 |
Fair Value, Level 1 | Mutual Funds - Foreign Small Mid Growth |  |  |
Fair Value of plan assets, Ending Balance | 303 | 225 |
Fair Value, Level 1 | Mutual Funds - Foreign Large Core |  |  |
Fair Value of plan assets, Ending Balance | 234 | 279 |
Fair Value, Level 1 | Mutual Funds - Foreign Large Growth |  |  |
Fair Value of plan assets, Ending Balance | 292 | 247 |
Fair Value, Level 1 | Mutual Funds - Diversied Emerging Markets |  |  |
Fair Value of plan assets, Ending Balance | 282 | 163 |
Fair Value, Level 1 | Mutual Funds - Preferred Stock Index |  |  |
Fair Value of plan assets, Ending Balance | 119 | 107 |
Fair Value, Level 1 | Agency/US/State/Municipal Debt |  |  |
Fair Value of plan assets, Ending Balance | 780 | 424 |
Fair Value, Level 1 | CommoditiesMember |  |  |
Fair Value of plan assets, Ending Balance | 170 | 100 |
Fair Value, Level 1 | Investments |  |  |
Fair Value of plan assets, Ending Balance | 9,289 | 6,377 |
Fair Value, Total | Mutual Funds - Small Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 97 | 90 |
Fair Value, Total | Mutual Funds - Mid Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 104 | 48 |
Fair Value, Total | Mutual Funds - Mid Cap Growth |  |  |
Fair Value of plan assets, Ending Balance | 290 | 253 |
Fair Value, Total | Mutual Funds - Mid Cap Value |  |  |
Fair Value of plan assets, Ending Balance | 446 | 288 |
Fair Value, Total | Mutual Funds - Large Cap Core |  |  |
Fair Value of plan assets, Ending Balance | 5,270 | 3,406 |
Fair Value, Total | Mutual Funds - Large Cap Growth |  |  |
Fair Value of plan assets, Ending Balance | 902 | 398 |
Fair Value, Total | Mutual Funds - Large Cap Value |  |  |
Fair Value of plan assets, Ending Balance |  | 349 |
Fair Value, Total | Mutual Funds - Foreign Small Mid Growth |  |  |
Fair Value of plan assets, Ending Balance | 303 | 225 |
Fair Value, Total | Mutual Funds - Foreign Large Core |  |  |
Fair Value of plan assets, Ending Balance | 234 | 279 |
Fair Value, Total | Mutual Funds - Foreign Large Growth |  |  |
Fair Value of plan assets, Ending Balance | 292 | 247 |
Fair Value, Total | Mutual Funds - Diversied Emerging Markets |  |  |
Fair Value of plan assets, Ending Balance | 282 | 163 |
Fair Value, Total | Mutual Funds - Preferred Stock Index |  |  |
Fair Value of plan assets, Ending Balance | 119 | 107 |
Fair Value, Total | Money Market Funds - Cash and Cash Equivalents |  |  |
Fair Value of plan assets, Ending Balance | 1,205 | 81 |
Fair Value, Total | Agency/US/State/Municipal Debt |  |  |
Fair Value of plan assets, Ending Balance | 10,694 | 9,046 |
Fair Value, Total | CommoditiesMember |  |  |
Fair Value of plan assets, Ending Balance | 170 | 100 |
Fair Value, Total | Investments |  |  |
Fair Value of plan assets, Ending Balance | 20,408 | 15,817 |
Fair Value, Level 2 | Money Market Funds - Cash and Cash Equivalents |  |  |
Fair Value of plan assets, Ending Balance | 1,205 | 818 |
Fair Value, Level 2 | Agency/US/State/Municipal Debt |  |  |
Fair Value of plan assets, Ending Balance | 9,914 | 8,622 |
Fair Value, Level 2 | Investments |  |  |
Fair Value of plan assets, Ending Balance | $ 11,119 | $ 9,440 |

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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 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: 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=21915506&loc=d3e1928-114920 + Details
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Balance Type: | debit
Period Type: | instant