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Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) (Notes) | 9 Months Ended
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Sep. 30, 2013
Statement of Comprehensive Income [Abstract] |
Comprehensive Income (Loss) Note [Text Block] | Other Comprehensive Income (Loss) Other comprehensive income (loss) components, net of tax, are shown in the following table for the three-month and nine-month periods ended September 30, 2013 and 2012:
Nine months ended September 30, (in thousands) |  | Changes in pension plan assets and benefit obligations |  | Unrealized gains and losses on available for sale securities |  | Unrealized net holding loss on cash flow hedge |  | Total
Beginning balance at December 31, 2012 |  | $ | (27,134 | ) |  | $ | 9,616 |  |  | $ | — |  |  | $ | (17,518 | )
| Other comprehensive loss before reclassifications |  | — |  |  | (33,948 | ) |  | — |  |  | (33,948 | )
| Amounts reclassified from accumulated other comprehensive income |  | — |  |  | 17 |  |  | — |  |  | 17 |
Net current period other comprehensive loss |  | — |  |  | (33,931 | ) |  | — |  |  | (33,931 | )
Ending balance at September 30, 2013 |  | $ | (27,134 | ) |  | $ | (24,315 | ) |  | $ | — |  |  | $ | (51,449 | )
Beginning balance at December 31, 2011 |  | $ | (20,954 | ) |  | $ | 12,673 |  |  | $ | (550 | ) |  | $ | (8,831 | )
Net current period other comprehensive income |  | 412 |  |  | 1,468 |  |  | 401 |  |  | 2,281 |
Ending balance at September 30, 2012 |  | $ | (20,542 | ) |  | $ | 14,141 |  |  | $ | (149 | ) |  | $ | (6,550 | )
Three months ended September 30, (in thousands) |  | Changes in pension plan assets and benefit obligations |  | Unrealized gains and losses on available for sale securities |  | Unrealized net holding loss on cash flow hedge |  | Total
Beginning balance at June 30, 2013 |  | $ | (27,134 | ) |  | $ | (13,300 | ) |  | $ | — |  |  | $ | (40,434 | )
| Other comprehensive loss before reclassifications |  | — |  |  | (11,032 | ) |  | — |  |  | (11,032 | )
| Amounts reclassified from accumulated other comprehensive income |  | — |  |  | 17 |  |  | — |  |  | 17 |
Net current period other comprehensive loss |  | — |  |  | (11,015 | ) |  | — |  |  | (11,015 | )
Ending balance at September 30, 2013 |  | $ | (27,134 | ) |  | $ | (24,315 | ) |  | $ | — |  |  | $ | (51,449 | )
Beginning balance at June 30, 2012 |  | $ | (20,542 | ) |  | $ | 13,277 |  |  | $ | (291 | ) |  | $ | (7,556 | )
Net current period other comprehensive income |  | — |  |  | 864 |  |  | 142 |  |  | 1,006 |
Ending balance at September 30, 2012 |  | $ | (20,542 | ) |  | $ | 14,141 |  |  | $ | (149 | ) |  | $ | (6,550 | )
During the three-month and nine-month periods ended September 30, 2013, there was $17,000 reclassified out of accumulated other comprehensive income due to an other-than-temporary impairment charge on an available-for-sale security. This charge was recorded within miscellaneous expense on the consolidated condensed statement of income.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e689-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669619-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e640-108580 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e716-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e709-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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