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Employee Benefit Plans (Details 9) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Pension Benefit Plan
     
Fair Value of plan assets, Ending Balance $ 46,443 $ 37,904 $ 32,196
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Mid Cap Growth
     
Fair Value of plan assets, Ending Balance 1,015 703  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Mid Cap Value
     
Fair Value of plan assets, Ending Balance 555 412  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Foreign Small Mid Growth
     
Fair Value of plan assets, Ending Balance 298 255  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Foreign Large Blend
     
Fair Value of plan assets, Ending Balance 2,439 710  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Pacific Asia/ex-Japan Stock
     
Fair Value of plan assets, Ending Balance 157 164  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Diversified Emerging Markets
     
Fair Value of plan assets, Ending Balance 590 222  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Preferred Stock Index
     
Fair Value of plan assets, Ending Balance   82  
Pension Benefit Plan | Fair Value, Level 1 | Money Market Funds - Cash and Cash Equivalents
     
Fair Value of plan assets, Ending Balance 44 2,385  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Non-Financial Services
     
Fair Value of plan assets, Ending Balance 147 293  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Financial Services
     
Fair Value of plan assets, Ending Balance 1,882 1,883  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Utilities
     
Fair Value of plan assets, Ending Balance 1,433 1,334  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Consumer Growth
     
Fair Value of plan assets, Ending Balance 1,665 1,778  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Consumer Staples
     
Fair Value of plan assets, Ending Balance 392 931  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Consumer Cyclicals
     
Fair Value of plan assets, Ending Balance 1,063 886  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Capital Equipment
     
Fair Value of plan assets, Ending Balance 419 669  
Pension Benefit Plan | Fair Value, Level 1 | Investments
     
Fair Value of plan assets, Ending Balance 46,130 15,203  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Industrial Resources
     
Fair Value of plan assets, Ending Balance 149 224  
Pension Benefit Plan | Fair Value, Level 1 | Commodities
     
Fair Value of plan assets, Ending Balance   88  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Technology
     
Fair Value of plan assets, Ending Balance 1,319 1,324  
Pension Benefit Plan | Fair Value, Level 1 | Equity Securities - Energy
     
Fair Value of plan assets, Ending Balance 875 860  
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Small Cap Core
     
Fair Value of plan assets, Ending Balance 191    
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Small Cap Value
     
Fair Value of plan assets, Ending Balance 278    
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Large Cap Core
     
Fair Value of plan assets, Ending Balance 13,916    
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Foreign Large Growth
     
Fair Value of plan assets, Ending Balance 457    
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Intermediate Term Bond
     
Fair Value of plan assets, Ending Balance 14,909    
Pension Benefit Plan | Fair Value, Level 1 | Mutual Funds - Real Asset
     
Fair Value of plan assets, Ending Balance 1,074    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Mid Cap Growth
     
Fair Value of plan assets, Ending Balance 1,015 703  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Mid Cap Value
     
Fair Value of plan assets, Ending Balance 555 412  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Foreign Small Mid Growth
     
Fair Value of plan assets, Ending Balance 298 255  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Foreign Large Blend
     
Fair Value of plan assets, Ending Balance 2,439 710  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Pacific Asia/ex-Japan Stock
     
Fair Value of plan assets, Ending Balance 157 164  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Diversified Emerging Markets
     
Fair Value of plan assets, Ending Balance 590 222  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Preferred Stock Index
     
Fair Value of plan assets, Ending Balance   82  
Pension Benefit Plan | Fair Value, Total | Money Market Funds - Cash and Cash Equivalents
     
Fair Value of plan assets, Ending Balance 357 3,132  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Non-Financial Services
     
Fair Value of plan assets, Ending Balance 147 293  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Financial Services
     
Fair Value of plan assets, Ending Balance 1,882 1,883  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Utilities
     
Fair Value of plan assets, Ending Balance 1,433 1,334  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Consumer Growth
     
Fair Value of plan assets, Ending Balance 1,665 1,778  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Consumer Staples
     
Fair Value of plan assets, Ending Balance 392 931  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Consumer Cyclicals
     
Fair Value of plan assets, Ending Balance 1,063 886  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Capital Equipment
     
Fair Value of plan assets, Ending Balance 419 669  
Pension Benefit Plan | Fair Value, Total | Common Trust Fund-Large Cap
     
Fair Value of plan assets, Ending Balance   10,409  
Pension Benefit Plan | Fair Value, Total | Investments
     
Fair Value of plan assets, Ending Balance 46,443 37,904  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Industrial Resources
     
Fair Value of plan assets, Ending Balance 149 224  
Pension Benefit Plan | Fair Value, Total | Commodities
     
Fair Value of plan assets, Ending Balance   88  
Pension Benefit Plan | Fair Value, Total | Sovereign/Non-US Debt
     
Fair Value of plan assets, Ending Balance   63  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Technology
     
Fair Value of plan assets, Ending Balance 1,319 1,324  
Pension Benefit Plan | Fair Value, Total | Agency/US/State/Municipal Debt
     
Fair Value of plan assets, Ending Balance   5,312  
Pension Benefit Plan | Fair Value, Total | Equity Securities - Energy
     
Fair Value of plan assets, Ending Balance 875 860  
Pension Benefit Plan | Fair Value, Total | Asset-Backed Securities
     
Fair Value of plan assets, Ending Balance   25 [1]  
Pension Benefit Plan | Fair Value, Total | Corporate Bonds
     
Fair Value of plan assets, Ending Balance   3,575  
Pension Benefit Plan | Fair Value, Total | Mortgage-Backed Securities
     
Fair Value of plan assets, Ending Balance   2,570 [1]  
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Small Cap Core
     
Fair Value of plan assets, Ending Balance 191    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Small Cap Value
     
Fair Value of plan assets, Ending Balance 278    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Large Cap Core
     
Fair Value of plan assets, Ending Balance 13,916    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Foreign Large Growth
     
Fair Value of plan assets, Ending Balance 457    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Intermediate Term Bond
     
Fair Value of plan assets, Ending Balance 14,909    
Pension Benefit Plan | Fair Value, Total | Mutual Funds - Real Asset
     
Fair Value of plan assets, Ending Balance 1,074    
Pension Benefit Plan | Fair Value, Level 2 | Money Market Funds - Cash and Cash Equivalents
     
Fair Value of plan assets, Ending Balance 313 747  
Pension Benefit Plan | Fair Value, Level 2 | Common Trust Fund-Large Cap
     
Fair Value of plan assets, Ending Balance   10,409  
Pension Benefit Plan | Fair Value, Level 2 | Investments
     
Fair Value of plan assets, Ending Balance 313 22,701  
Pension Benefit Plan | Fair Value, Level 2 | Sovereign/Non-US Debt
     
Fair Value of plan assets, Ending Balance   63  
Pension Benefit Plan | Fair Value, Level 2 | Agency/US/State/Municipal Debt
     
Fair Value of plan assets, Ending Balance   5,312  
Pension Benefit Plan | Fair Value, Level 2 | Asset-Backed Securities
     
Fair Value of plan assets, Ending Balance   25 [1]  
Pension Benefit Plan | Fair Value, Level 2 | Corporate Bonds
     
Fair Value of plan assets, Ending Balance   3,575  
Pension Benefit Plan | Fair Value, Level 2 | Mortgage-Backed Securities
     
Fair Value of plan assets, Ending Balance   2,570 [1]  
Mutual Funds - Foreign Large Core | Fair Value, Level 1 | Mutual Funds - Foreign Large Core
     
Fair Value of plan assets, Ending Balance 863    
Mutual Funds - Foreign Large Core | Fair Value, Total | Mutual Funds - Foreign Large Core
     
Fair Value of plan assets, Ending Balance $ 863    
[1] Mortgage-backed securities represent AAA rated securities and substantially all of the asset-backed securities are highly-rated (Standard & Poor's rating of AA+), secured primarily by credit card, auto loan, and home equity receivables.