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Employee Benefit Plans (Schedule of Allocation of Plan Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets $ 59,559 $ 49,516
Mutual Funds [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 59,485 [1] 49,456 [2]
U.S. Equity Funds [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 33.00% 42.00%
U.S. Fixed Income Funds [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 26.00% 39.00%
Non-U.S. Equity Funds [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 25.00% 16.00%
Other [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 16.00% 3.00%
Cash and Cash Equivalents [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 74 60
Fair Value, Inputs, Level 1 [Member]
    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 59,559 49,516
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 59,485 [1] 49,456 [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 74 60
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 33% in U.S. equity funds, 26% in U.S. fixed income funds, 25% in non-U.S. equity funds and 16% in other.
[2] Mutual funds were invested 42% in U.S. equity funds, 39% in U.S. fixed income funds, 16% in non-U.S. equity funds and 3% in other.