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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
Stockholders' Equity Note [Abstract] |
Dividends Declared [Table Text Block] | Our board of directors declared and paid the following dividends during each of the respective quarters for the years ended December 31, 2021, 2020, and 2019:
| Dividends Per Share |  | Amount Paid
2021 |  |  | (in thousands)
First Quarter (a) | $ | 0.10 |  |  | $ | 4,440 |
Second Quarter (b) | 2.10 |  |  | 3,933 |
Third Quarter (b) | 0.10 |  |  | 82,596 |
Fourth Quarter (b) | 3.12 |  |  | 122,712 |
Total | $ | 5.42 |  |  | $ | 213,681 |
2020 |  |  |
First Quarter (a) | $ | 0.10 |  |  | $ | 4,645 |
Second Quarter | 0.10 |  |  | 3,917 |
Third Quarter (c) | 1.70 |  |  | 3,991 |
Fourth Quarter (c) | 0.10 |  |  | 66,642 |
Total | $ | 2.00 |  |  | $ | 79,195 |
2019 |  |  |
First Quarter (a) | $ | 0.09 |  |  | $ | 4,053 |
Second Quarter | 0.09 |  |  | 3,509 |
Third Quarter | 0.09 |  |  | 3,508 |
Fourth Quarter (d) | 1.10 |  |  | 42,884 |
Total | $ | 1.37 |  |  | $ | 53,954 |
__________________ (a)Includes payments of dividend equivalents on RSUs and PSUs which vested in first quarter of each year. (b)During second quarter 2021, our board of directors declared a supplemental dividend of $2.00 per share on our common stock, which was paid in the third quarter 2021. During fourth quarter 2021, our board of directors declared and paid a supplemental dividend of $3.00 per share on our common stock. (c)During third quarter 2020, our board of directors declared a supplemental dividend of $1.60 per share on our common stock, which was paid in fourth quarter 2020. (d)During fourth quarter 2019, our board of directors declared and paid a supplemental dividend of $1.00 per share of our common stock.
Changes in Accumulated Other Comprehensive Loss [Table Text Block] | The following table details the changes in accumulated other comprehensive loss for the years ended December 31, 2021, 2020, and 2019:
|  | Changes in Accumulated Other Comprehensive Loss
|  | Year Ended December 31
|  | 2021 |  | 2020 |  | 2019
|  | (thousands)
Beginning Balance, net of taxes |  | $ | (1,078) |  |  | $ | (50,248) |  |  | $ | (47,652) |
Net actuarial gain (loss), before taxes |  | 61 |  |  | 6,832 |  |  | (4,642) |
Amortization of actuarial (gain) loss, before taxes (a) |  | (19) |  |  | 807 |  |  | (175) |
Effect of settlements, before taxes (a) |  | — |  |  | 6,250 |  |  | 1,342 |
Income taxes (b) |  | (11) |  |  | 35,281 |  |  | 879 |
Ending Balance, net of taxes |  | $ | (1,047) |  |  | $ | (1,078) |  |  | $ | (50,248) |
___________________________________ (a) Represents amounts reclassified from accumulated other comprehensive loss. These amounts are included in the computation of net periodic pension cost. For additional information, see Note 11, Retirement and Benefit Plans. (b) For the year ended December 31, 2020, income taxes included $38.8 million related to the release of stranded tax effects upon Plan Termination, as discussed in Note 4, Income Taxes.

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