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Changes in Accumulated Other Comprehensive Loss by Component (Tables) | 6 Months Ended
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Jun. 30, 2021
Changes in Accumulated Other Comprehensive Loss by Component |
Schedule of changes to accumulated other comprehensive loss by component | Changes to accumulated other comprehensive loss by component for the six months ended June 30, 2021 are 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 loss before reclassifications | ​ | ​ | (21) | ​ | ​ | — | ​ | ​ | ​ | (21)
Amounts reclassified from accumulated other comprehensive loss: (1) | ​ | ​ | 1,560 | ​ | ​ | (115) | ​ | ​ | ​ | 1,445
Balance at June 30, 2021 | ​ | $ | (6,069) | ​ | $ | 1,998 | ​ | ​ | $ | (4,071)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Amounts reclassified from accumulated other comprehensive loss: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of Other Postretirement Benefit items: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Actuarial gains | ​ | $ | (156) | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | 41 | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | (115) | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Realized losses on interest rate swaps reclassified to interest expense | ​ | $ | 2,108 | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tax benefit | ​ | ​ | (548) | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | 1,560 | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ ​ ​ ​ ​ Changes to accumulated other comprehensive loss by component for the six months ended June 30, 2020 are 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 before reclassifications | ​ | ​ | (4,612) | ​ | ​ | - | ​ | ​ | (4,612)
Amounts reclassified from accumulated other comprehensive loss: (1) | ​ | ​ | 914 | ​ | ​ | (114) | ​ | ​ | 800
Balance at June 30, 2020 | ​ | $ | (8,721) | ​ | $ | 2,095 | ​ | $ | (6,626)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Amounts reclassified from accumulated other comprehensive loss: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of Other Postretirement Benefit items: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Actuarial gains | ​ | $ | (154) | ​ | ​ | ​ | ​ | ​ | ​
Tax expense | ​ | ​ | 40 | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | (114) | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Realized losses on interest rate swaps reclassified to interest expense | ​ | $ | 1,235 | ​ | ​ | ​ | ​ | ​ | ​
Tax benefit | ​ | ​ | (321) | ​ | ​ | ​ | ​ | ​ | ​
Reclassification net of tax | ​ | $ | 914 | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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