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Employee Benefit Plans (Schedule of Defined Benefit Plans' Assets at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 77,993	$ 65,890	$ 58,148
U.S. small cap equity funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		7,637
U.S. mid-cap equity funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		18,626
U.S. large-cap equity funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		5,848
International equity funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,458	13,083
Domestic real estate funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		3,640
Corporate bond funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		16,510
Money market funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 73,535	$ 546

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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

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