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Changes in Accumulated Other Comprehensive Loss by Component | 12 Months Ended
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Dec. 31, 2021
Changes in Accumulated Other Comprehensive Loss by Component |
Changes in Accumulated Other Comprehensive Loss by Component | 20. Changes in Accumulated Other Comprehensive Loss by Component Changes to accumulated other comprehensive loss by component for the year ended December 31, 2021 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Net Loss | ​ | ​ | Retiree | ​ | ​ | ​
​ | ​ | on Interest | ​ | ​ | Health | ​ | ​ | ​
​ | ​ | Rate | ​ | ​ | Benefit | ​ | ​ | ​
​ | ​ | Swap | ​ | ​ | Obligation | ​ | Total
Balance at December 31, 2020 | ​ | $ | (7,608) | ​ | $ | 2,113 | ​ | $ | (5,495)
Other comprehensive gain before reclassifications | ​ | ​ | 943 | ​ | ​ | 589 | ​ | ​ | 1,532
Amounts reclassified from accumulated other comprehensive loss: (1) | ​ | ​ | 3,141 | ​ | ​ | (231) | ​ | ​ | 2,910
Balance at December 31, 2021 | ​ | $ | (3,524) | ​ | $ | 2,471 | ​ | $ | (1,053)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Amounts reclassified from accumulated other comprehensive loss: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of Other Postretirement Benefit items: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Actuarial gains (a) | ​ | $ | (312) | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | 81 | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | (231) | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized gains on interest rate swaps reclassified to interest expense | ​ | $ | 4,244 | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | (1,103) | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | 3,141 | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(a) – These components are included in the computation of benefit plan costs in Note 13.
​ ​ Changes to accumulated other comprehensive loss by component for the year ended December 31, 2020 is as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Net Loss | ​ | ​ | Retiree | ​ | ​ | ​
​ | ​ | on Interest | ​ | ​ | Health | ​ | ​ | ​
​ | ​ | Rate | ​ | ​ | Benefit | ​ | ​ | ​
​ | ​ | Swap | ​ | ​ | Obligation | ​ | Total
Balance at December 31, 2019 | ​ | $ | (5,023) | ​ | $ | 2,209 | ​ | $ | (2,814)
Other comprehensive gain (loss) before reclassifications | ​ | ​ | (5,047) | ​ | ​ | 133 | ​ | ​ | (4,914)
Amounts reclassified from accumulated other comprehensive loss: (1) | ​ | ​ | 2,462 | ​ | ​ | (229) | ​ | ​ | 2,233
Balance at December 31, 2020 | ​ | $ | (7,608) | ​ | $ | 2,113 | ​ | $ | (5,495)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Amounts reclassified from accumulated other comprehensive loss: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of Other Postretirement Benefit items: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Actuarial gain (a) | ​ | $ | (310) | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | 81 | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | (229) | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized gains on interest rate swaps reclassified to interest expense | ​ | $ | 3,327 | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | (865) | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | 2,462 | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(a) – These components are included in the computation of benefit plan costs in Note 13.
​

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