|
Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
| Statement of Comprehensive Income [Abstract] | ||||
| Increase in estimated fair value of investment in debt securities, tax expense (benefit) | $ (736) | $ 0 | $ (4,044) | $ 187 |
| Unrecognized actuarial loss and prior service cost, tax expense (benefit) | 113 | 232 | (196) | 1,157 |
| Income tax on cash flow hedge activity | $ 48 | $ 33 | $ 127 | $ 195 |