Fair Value Measurements Investments (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
---|---|---|
Schedule of Held-to-maturity Securities [Line Items] | ||
Fair value of interest rate swap | $ 1,828 | $ 2,866 |
Held-to-maturity Securities | 22,399 | 22,510 |
Moody's, Aa2 Rating [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Held-to-maturity Securities | 4,066 | 6,310 |
Moody's, A1 Rating [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Held-to-maturity Securities | 18,333 | 16,200 |
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Fair value of interest rate swap | 1,828 | 2,866 |
Interest Rate Cash Flow Hedging Instrument Liability, Tax Effect | 716 | 1,121 |
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net | $ (1,112) | $ (1,745) |