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Employee Benefit Plans (Details 7) | 12 Months Ended
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Dec. 31, 2012
Fixed income investments - Cash/money market account |
Targeted percentage of plan assets | 2.00%
Targeted percentage of plan assets, minimum | 1.00%
Targeted percentage of plan assets, maximum | 5.00%
Fixed income investments - US government bond fund |
Targeted percentage of plan assets | 10.00%
Targeted percentage of plan assets, minimum | 10.00%
Targeted percentage of plan assets, maximum | 20.00%
Fixed income investments - US corporate bond fund |
Targeted percentage of plan assets | 10.00%
Targeted percentage of plan assets, minimum | 5.00%
Targeted percentage of plan assets, maximum | 15.00%
Fixed income investments - US corporate high yield bond fund |
Targeted percentage of plan assets | 5.00%
Targeted percentage of plan assets, minimum | 0.00%
Targeted percentage of plan assets, maximum | 10.00%
Equity investments - Large cap value fund |
Targeted percentage of plan assets | 20.00%
Targeted percentage of plan assets, minimum | 20.00%
Targeted percentage of plan assets, maximum | 30.00%
Equity investments - Large cap growth fund |
Targeted percentage of plan assets | 20.00%
Targeted percentage of plan assets, minimum | 20.00%
Targeted percentage of plan assets, maximum | 30.00%
Equity investments - Mid cap equity fund |
Targeted percentage of plan assets | 10.00%
Targeted percentage of plan assets, minimum | 5.00%
Targeted percentage of plan assets, maximum | 15.00%
Equity investments - Small cap growth fund |
Targeted percentage of plan assets | 8.00%
Targeted percentage of plan assets, minimum | 5.00%
Targeted percentage of plan assets, maximum | 15.00%
Equity investments - Foreign equity fund |
Targeted percentage of plan assets | 10.00%
Targeted percentage of plan assets, minimum | 5.00%
Targeted percentage of plan assets, maximum | 15.00%
Equity investments - Company stock |
Targeted percentage of plan assets | 5.00%
Targeted percentage of plan assets, minimum | 0.00%
Targeted percentage of plan assets, maximum | 10.00%

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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + 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 (d)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 + Details
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- Definition Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis. + 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 (d)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 + Details
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- Definition Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis. + 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 (d)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 + Details
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