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Retirement and Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Retirement Benefits [Abstract] |
Defined Benefit Obligations and Funded Status [Table Text Block] | The following table, which includes only company-sponsored defined benefit plans, reconciles the beginning and ending balances of our projected benefit obligation and fair value of plan assets. We recognize the underfunded status of our defined benefit pension plans on our Consolidated Balance Sheets. We recognize changes in funded status in the year changes occur through other comprehensive income (loss).
|  | December 31
|  | 2021 |  | 2020
|  | (thousands)
Change in benefit obligation |  |  |  |
Benefit obligation at beginning of year |  | $ | 4,887 |  |  | $ | 192,061 |
Service cost |  | — |  |  | 668 |
Interest cost |  | 95 |  |  | 5,893 |
Actuarial loss |  | (61) |  |  | 18,605 |
Group annuity transactions (a) |  | — |  |  | (76,650) |
Benefits paid (b) |  | (470) |  |  | (135,690) |
Benefit obligation at end of year |  | 4,451 |  |  | 4,887 |
Change in plan assets |  |  |  |
Fair value of plan assets at beginning of year |  | — |  |  | 168,651 |
Actual return on plan assets |  | — |  |  | 30,930 |
Employer contributions |  | 470 |  |  | 12,759 |
Group annuity transactions (a) |  | — |  |  | (76,650) |
Benefits paid (b) |  | (470) |  |  | (135,690) |
Fair value of plan assets at end of year |  | — |  |  | — |
Underfunded status |  | $ | (4,451) |  |  | $ | (4,887) |
Amounts recognized on our Consolidated Balance Sheets |  |  |  |
Current liabilities |  | $ | (1,054) |  |  | $ | (367) |
Noncurrent liabilities |  | (3,397) |  |  | (4,520) |
Net liability |  | $ | (4,451) |  |  | $ | (4,887) |
Amounts recognized in accumulated other comprehensive loss |  |  |  |
Net actuarial loss |  | $ | 1,401 |  |  | $ | 1,443 |
Prior service cost |  | — |  |  | — |
Net loss recognized |  | $ | 1,401 |  |  | $ | 1,443 |
______________________________________ (a) See Defined Benefits Plans above for description of group annuity transactions. (b) See Defined Benefits Plans above for description of lump-sum payments.
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] | The components of net periodic benefit cost and other amounts recognized in other comprehensive (income) loss are as follows:
| Year Ended December 31
| 2021 |  | 2020 |  | 2019
| (thousands)
Net periodic benefit cost |  |  |  |  |
Service cost | $ | — |  |  | $ | 668 |  |  | $ | 647 |
Interest cost | 95 |  |  | 5,893 |  |  | 7,210 |
Expected return on plan assets | — |  |  | (5,493) |  |  | (5,903) |
Amortization of actuarial (gain) loss | (19) |  |  | 807 |  |  | (175) |
Plan settlement expense (a) | — |  |  | 6,250 |  |  | 1,342 |
Net periodic benefit cost | 76 |  |  | 8,125 |  |  | 3,121 |
Changes in plan assets and benefit obligations recognized in other comprehensive (income) loss |  |  |  |  |
Net actuarial (gain) loss | (61) |  |  | (6,832) |  |  | 4,642 |
Amortization of actuarial gain (loss) | 19 |  |  | (807) |  |  | 175 |
Effect of settlements | — |  |  | (6,250) |  |  | (1,342) |
Total recognized in other comprehensive (income) loss | (42) |  |  | (13,889) |  |  | 3,475 |
Total recognized in net periodic cost and other comprehensive (income) loss | $ | 34 |  |  | $ | (5,764) |  |  | $ | 6,596 |
______________________________________ (a) Plan settlement expense during the years ended December 31, 2020, and 2019 includes $6.3 million and $1.3 million, respectively, of settlement charges related to the transfers of pension plan assets to Prudential for the purchase of group annuity contracts, as well as lump-sum payments in 2020.
Schedule of Net Benefit Costs [Table Text Block] | The components of net periodic benefit cost and other amounts recognized in other comprehensive (income) loss are as follows:
| Year Ended December 31
| 2021 |  | 2020 |  | 2019
| (thousands)
Net periodic benefit cost |  |  |  |  |
Service cost | $ | — |  |  | $ | 668 |  |  | $ | 647 |
Interest cost | 95 |  |  | 5,893 |  |  | 7,210 |
Expected return on plan assets | — |  |  | (5,493) |  |  | (5,903) |
Amortization of actuarial (gain) loss | (19) |  |  | 807 |  |  | (175) |
Plan settlement expense (a) | — |  |  | 6,250 |  |  | 1,342 |
Net periodic benefit cost | 76 |  |  | 8,125 |  |  | 3,121 |
Changes in plan assets and benefit obligations recognized in other comprehensive (income) loss |  |  |  |  |
Net actuarial (gain) loss | (61) |  |  | (6,832) |  |  | 4,642 |
Amortization of actuarial gain (loss) | 19 |  |  | (807) |  |  | 175 |
Effect of settlements | — |  |  | (6,250) |  |  | (1,342) |
Total recognized in other comprehensive (income) loss | (42) |  |  | (13,889) |  |  | 3,475 |
Total recognized in net periodic cost and other comprehensive (income) loss | $ | 34 |  |  | $ | (5,764) |  |  | $ | 6,596 |
______________________________________ (a) Plan settlement expense during the years ended December 31, 2020, and 2019 includes $6.3 million and $1.3 million, respectively, of settlement charges related to the transfers of pension plan assets to Prudential for the purchase of group annuity contracts, as well as lump-sum payments in 2020.
Schedule of Assumptions Used [Table Text Block] | The following table presents the assumptions used in the measurement of net periodic benefit cost:
|  |  |  | December 31 |  |
|  |  |  | 2020 |  | 2019 |
Weighted average assumptions |  |  |  |  |  |  |  |
Discount rate |  |  |  | 3.10 | % |  | 4.15 | % |  |
Expected long-term rate of return on plan assets |  |  |  | 3.50 | % |  | 3.85 | % |  |
Rate of compensation increases (a) |  |  |  | — | % |  | — | % |
_______________________________________ (a) Pension benefits for all salaried employees are frozen, resulting in an assumption for the rate of compensation increase of zero.

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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123447040&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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