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Employee Benefit Plans (Schedule of Allocation of Plan Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 68,435 |  | $ 66,757 |
Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 68,349 | [1] | $ 66,675 | [2]
U.S. Equity Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 32.00% |  | 32.00% |
U.S. Fixed Income Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 38.00% |  | 30.00% |
Non-U.S. Equity Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 15.00% |  | 22.00% |
Other [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 15.00% |  | 16.00% |
Cash and Cash Equivalents [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 86 |  | $ 82 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 68,435 |  | 66,757 |
Fair Value, Inputs, Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 68,349 | [1] | 66,675 | [2]
Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 86 |  | 82 |
Fair Value, Inputs, Level 2 [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 0 |  | 0 |
Fair Value, Inputs, Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | [1] | 0 | [2]
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 0 |  | 0 |
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 0 |  | 0 |
Fair Value, Inputs, Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | [1] | 0 | [2]
Fair Value, Inputs, Level 3 [Member] | Cash and Cash Equivalents [Member] |  |  |  |
Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |  |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 0 |  | $ 0 |
[1] | Mutual funds were invested 32% in U.S. equity funds, 38% in U.S. fixed income funds, 15% in non-U.S. equity funds and 15% in other.
[2] | Mutual funds were invested 32% in U.S. equity funds, 30% in U.S. fixed income funds, 22% in non-U.S. equity funds and 16% in other.

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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=49178875&loc=d3e12355-114930 Reference 2: 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=58740216&loc=d3e1928-114920 + Details
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