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Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) Net of Tax (Tables) | 6 Months Ended
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Jun. 30, 2013
Statement of Comprehensive Income [Abstract] |
Comprehensive Income (Loss) [Table Text Block] | Other comprehensive income (loss) components, net of tax, are shown in the following table for the three-month and six-month periods ended June 30, 2013 and 2012:
(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 |  | — |  |  | (22,916 | ) |  | — |  |  | (22,916 | )
| Amounts reclassified from accumulated other comprehensive income |  | — |  |  | — |  |  | — |  |  | — |
Net current period other comprehensive loss |  | — |  |  | (22,916 | ) |  | — |  |  | (22,916 | )
Ending balance at June 30, 2013 |  | $ | (27,134 | ) |  | $ | (13,300 | ) |  | $ | — |  |  | $ | (40,434 | )
Beginning balance at December 31, 2011 |  | $ | (20,954 | ) |  | $ | 12,673 |  |  | $ | (550 | ) |  | $ | (8,831 | )
Net current period other comprehensive income (loss) |  | 412 |  |  | 604 |  |  | 259 |  |  | 1,275 |
Ending balance at June 30, 2012 |  | $ | (20,542 | ) |  | $ | 13,277 |  |  | $ | (291 | ) |  | $ | (7,556 | )
(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 March 31, 2013 |  | $ | (27,134 | ) |  | $ | 7,237 |  |  | $ | — |  |  | $ | (19,897 | )
| Other comprehensive loss before reclassifications |  | — |  |  | (20,537 | ) |  | — |  |  | (20,537 | )
| Amounts reclassified from accumulated other comprehensive income |  | — |  |  | — |  |  | — |  |  | — |
Net current period other comprehensive loss |  | — |  |  | (20,537 | ) |  | — |  |  | (20,537 | )
Ending balance at June 30, 2013 |  | $ | (27,134 | ) |  | $ | (13,300 | ) |  | $ | — |  |  | $ | (40,434 | )
Beginning balance at March 31, 2012 |  | $ | (20,542 | ) |  | $ | 10,471 |  |  | $ | (437 | ) |  | $ | (10,508 | )
Net current period other comprehensive income (loss) |  | — |  |  | 2,806 |  |  | 146 |  |  | 2,952 |
Ending balance at June 30, 2012 |  | $ | (20,542 | ) |  | $ | 13,277 |  |  | $ | (291 | ) |  | $ | (7,556 | )

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e526-108580 + Details
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Namespace Prefix: | us-gaap_
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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration