| Stockholders' Equity Note Disclosure [Text Block] |
| | | | | | NOTE N – SHAREHOLDERS’ EQUITY |
Accumulated Other Comprehensive Loss The following table presents the components of other comprehensive loss for the years ended December 31: | | | | | | | | | | | | | | Before-Tax Amount | | Tax Effect | | Net of Tax Amount | | (in thousands) | 2013: | | | | | | Unrealized (loss) gain on securities | $ | (76,319 | ) | | $ | 26,712 |
| | $ | (49,607 | ) | Reclassification adjustment for securities (gains) losses included in net income | (8,004 | ) | | 2,801 |
| | (5,203 | ) | Non-credit related unrealized gain on other-than-temporarily impaired debt securities | 3,042 |
| | (1,065 | ) | | 1,977 |
| Unrealized gain on derivative financial instruments | 209 |
| | (73 | ) | | 136 |
| Unrecognized pension and postretirement income (cost) | 12,875 |
| | (4,506 | ) | | 8,369 |
| Amortization (accretion) of net unrecognized pension and postretirement income (cost) | 2,019 |
| | (707 | ) | | 1,312 |
| Total Other Comprehensive Loss | $ | (66,178 | ) | | $ | 23,162 |
| | $ | (43,016 | ) | 2012: | | | | | | Unrealized (loss) gain on securities | $ | 2,414 |
| | $ | (845 | ) | | $ | 1,569 |
| Reclassification adjustment for securities (gains) losses included in net income | (3,026 | ) | | 1,059 |
| | (1,967 | ) | Non-credit related unrealized gain on other-than-temporarily impaired debt securities | 2,046 |
| | (716 | ) | | 1,330 |
| Unrealized gain on derivative financial instruments | 209 |
| | (73 | ) | | 136 |
| Unrecognized pension and postretirement income (cost) | (6,470 | ) | | 2,263 |
| | (4,207 | ) | Amortization (accretion) of net unrecognized pension and postretirement income (cost) | 1,321 |
| | (462 | ) | | 859 |
| Total Other Comprehensive Loss | $ | (3,506 | ) | | $ | 1,226 |
| | $ | (2,280 | ) | 2011: | | | | | | Unrealized (loss) gain on securities | $ | 13,490 |
| | $ | (4,722 | ) | | $ | 8,768 |
| Reclassification adjustment for securities (gains) losses included in net income | (4,561 | ) | | 1,597 |
| | (2,964 | ) | Non-credit related unrealized gain on other-than-temporarily impaired debt securities | 369 |
| | (129 | ) | | 240 |
| Unrealized gain on derivative financial instruments | 209 |
| | (73 | ) | | 136 |
| Unrecognized pension and postretirement income (cost) | (16,418 | ) | | 5,746 |
| | (10,672 | ) | Amortization (accretion) of net unrecognized pension and postretirement income (cost) | (74 | ) | | 26 |
| | (48 | ) | Total Other Comprehensive Loss | $ | (6,985 | ) | | $ | 2,445 |
| | $ | (4,540 | ) |
The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax, for the years ended December 31: | | | | | | | | | | | | | | | | | | | | | | Unrealized Gain (Losses) on Investment Securities Not Other-Than-Temporarily Impaired | | Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities | | Unrecognized Pension and Postretirement Plan Income (Cost) | | Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps | | Total | | (in thousands) | Balance as of December 31, 2010 | $ | 22,354 |
| | $ | (2,355 | ) | | $ | (4,414 | ) | | $ | (3,090 | ) | | $ | 12,495 |
| Current-period other comprehensive income (loss) | 7,664 |
| | 1,344 |
| | (10,672 | ) | | — |
| | (1,664 | ) | Amounts reclassified from accumulated other comprehensive income (loss) | (2,964 | ) | | — |
| | (48 | ) | | 136 |
| | (2,876 | ) | Balance as of December 31, 2011 | 27,054 |
| | (1,011 | ) | | (15,134 | ) | | (2,954 | ) | | 7,955 |
| Current-period other comprehensive income (loss) | 1,275 |
| | 1,624 |
| | (4,207 | ) | | — |
| | (1,308 | ) | Amounts reclassified from accumulated other comprehensive income (loss) | (1,967 | ) | | — |
| | 859 |
| | 136 |
| | (972 | ) | Balance as of December 31, 2012 | 26,362 |
| | 613 |
| | (18,482 | ) | | (2,818 | ) | | 5,675 |
| Other comprehensive income (loss) before reclassifications | (49,607 | ) | | 1,977 |
| | 8,369 |
| | — |
| | (39,261 | ) | Amounts reclassified from accumulated other comprehensive income (loss) | (4,265 | ) | | (938 | ) | | 1,312 |
| | 136 |
| | (3,755 | ) | Balance as of December 31, 2013 | $ | (27,510 | ) | | $ | 1,652 |
| | $ | (8,801 | ) | | $ | (2,682 | ) | | $ | (37,341 | ) |
Common Stock Repurchase Plans In January 2013, the Corporation announced that its board of directors had approved a share repurchase program pursuant to which the Corporation was authorized to repurchase of up to eight million shares. During 2013, the Corporation repurchased eight million shares, completing this repurchase program. In October 2013, the Corporation announced that its board of directors had approved a share repurchase program pursuant to which the Corporation is authorized to repurchase up to four million shares, or approximately 2.1% of its outstanding shares, through March 2014. During the first quarter of 2014, the Corporation repurchased 4.0 million shares under this repurchase plan at an average cost of $12.45 per share, completing this repurchase program on February 19, 2014. |