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Retirement Plans Retirement Plans Level 3 (Tables) | 12 Months Ended
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Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract] |
Schedule of Net Benefit Costs [Table Text Block] | The components of the Plans’ net periodic benefit cost for the years ended December 31 were as follows:
| 2014 |  | 2013 |  | 2012
| (In thousands)
Interest cost on projected benefit obligation | $ | 1,293 |  |  | $ | 780 |  |  | $ | 1,109 |
Recognized net actuarial losses (gains) | 2,401 |  |  | (1,205 | ) |  | 1,418 |
| $ | 3,694 |  |  | $ | (425 | ) |  | $ | 2,527 |
Schedule of Net Funded Status [Table Text Block] | The Plans’ funded status at December 31 was as follows:
| 2014 |  | 2013
| (In thousands)
Change in Benefit Obligation: |  |  |  |  |
Benefit obligation at beginning of year | $ | 37,499 |  |  | $ | 28,674 |
Acquisition of benefit obligation | — |  |  | 21,407 |
Interest cost | 1,293 |  |  | 780 |
Actuarial gain (loss) | 2,401 |  |  | (856 | )
Benefits paid | (4,273 | ) |  | (12,506 | )
Benefit obligation at end of year | $ | 36,920 |  |  | $ | 37,499 |
Change in Plan Assets: |  |  |  |  |
Fair value of plan assets at beginning of year | $ | — |  |  | $ | — |
Employer contributions | 4,273 |  |  | 12,506 |
Benefits paid, including expenses | (4,273 | ) |  | (12,506 | )
Fair value of plan assets at end of year | $ | — |  |  | $ | — |
Funded status of plan | $ | (36,920 | ) |  | $ | (37,499 | )
Net amount recognized in the Consolidated Balance Sheet | $ | (36,920 | ) |  | $ | (37,499 | )
Funding Summary: |  |  |  |  |
Projected benefit obligations | $ | 36,920 |  |  | $ | 37,499 |
Accumulated benefit obligation | $ | 36,920 |  |  | $ | 37,499 |
Amounts Recognized in the Consolidated Balance Sheet: |  |  |  |  |
Accrued benefit liability | $ | (36,920 | ) |  | $ | (37,499 | )
Schedule of Assumptions Used [Table Text Block] | The Plans’ weighted-average assumptions used to determine the benefit obligation and net benefit cost are as follows: we base our discount rate used to compute future benefit obligations using an analysis of expected future benefit payments. The reasonableness of our discount rate is verified by comparing the rate to the rate earned on high-quality fixed income investments, such as the Moody’s Aa index, plus 50 basis points. The assumed rate of return on plan assets was not applicable as we pay plan benefits as they come due. As all Plans are curtailed, the assumed rate of compensation increase is zero.
| 2014 |  | 2013 |  | 2012
Weighted average discount rate used to determine obligations | 3.42 | % |  | 3.66 | % |  | 2.90 | %
Weighted average discount rate used to determine net periodic pension cost | 3.69 | % |  | 2.90 | % |  | 4.05 | %
Schedule of Expected Benefit Payments [Table Text Block] | The following benefit payments are expected to be paid in future years related to our Plans (in thousands):
2015 | $ | 3,940 |
2016 | $ | 3,768 |
2017 | $ | 3,471 |
2018 | $ | 3,264 |
2019 | $ | 3,195 |
Years 2020 through 2024 | $ | 11,771 |

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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of net funded status of pension plans and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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