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Accumulated Other Comprehensive (Loss) Income - Schedule of Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
AOCI Attributable to Parent, Net of Tax |  |  |  |
Total accumulated other comprehensive (loss) income, beginning of period |  |  | $ (91,726) |
Total accumulated other comprehensive (loss) income, end of period | $ (90,908) |  | (90,908) |
Changes in Fair Market Value of Hedges |  |  |  |
Changes in AOCI, Gross |  |  |  |
Gross, beginning of the period | (4,239) | $ 1,036 | 659 | $ 1,316
Gross, gain (loss) recognized in OCI | 525 | (529) | (4,647) | (181)
Gross, gain (loss) reclassified from AOCI to Earnings | 656 | (426) | 930 | (1,054)
Gross, ending balance | (3,058) | 81 | (3,058) | 81
Changes in AOCI, Income tax benefit (expense) |  |  |  |
Income tax benefit (expense), beginning of period | 978 | (234) | (150) | (298)
Income tax benefit (expense), gain (loss) recognized in OCI | (122) | 119 | 1,059 | 41
Income tax benefit (expense), gain (loss) reclassified from AOCI to Earnings | (150) | 96 | (203) | 238
Income tax benefit (expense), ending of period | 706 | (19) | 706 | (19)
AOCI Attributable to Parent, Net of Tax |  |  |  |
Total accumulated other comprehensive (loss) income, beginning of period | (3,261) | 802 | 509 | 1,018
Gain (loss) recognized in OCI, net | 403 | (410) | (3,588) | (140)
Gain (loss) reclassified from AOCI to Earnings, net | 506 | (330) | 727 | (816)
Total accumulated other comprehensive (loss) income, end of period | (2,352) | 62 | (2,352) | 62
Changes in Unrealized Pension Cost |  |  |  |
Changes in AOCI, Gross |  |  |  |
Gross, beginning of the period | (120,906) | (129,810) | (124,140) | (132,454)
Gross, gain (loss) recognized in OCI | 0 | 0 | 0 | 0
Gross, gain (loss) reclassified from AOCI to Earnings | 1,606 | 1,313 | 4,840 | 3,957
Gross, ending balance | (119,300) | (128,497) | (119,300) | (128,497)
Changes in AOCI, Income tax benefit (expense) |  |  |  |
Income tax benefit (expense), beginning of period | 33,278 | 35,297 | 34,018 | 35,893
Income tax benefit (expense), gain (loss) recognized in OCI | 0 | 0 | 0 | 0
Income tax benefit (expense), gain (loss) reclassified from AOCI to Earnings | (367) | (296) | (1,107) | (892)
Income tax benefit (expense), ending of period | 32,911 | 35,001 | 32,911 | 35,001
AOCI Attributable to Parent, Net of Tax |  |  |  |
Total accumulated other comprehensive (loss) income, beginning of period | (87,628) | (94,513) | (90,122) | (96,561)
Gain (loss) recognized in OCI, net | 0 | 0 | 0 | 0
Gain (loss) reclassified from AOCI to Earnings, net | 1,239 | 1,017 | 3,733 | 3,065
Total accumulated other comprehensive (loss) income, end of period | (86,389) | (93,496) | (86,389) | (93,496)
Cumulative Translation Adjustment |  |  |  |
Changes in AOCI, Gross |  |  |  |
Gross, beginning of the period | (2,266) | (2,287) | (2,211) | (2,291)
Gross, gain (loss) recognized in OCI | 99 | (89) | 44 | (85)
Gross, gain (loss) reclassified from AOCI to Earnings | 0 | 0 | 0 | 0
Gross, ending balance | (2,167) | (2,376) | (2,167) | (2,376)
Changes in AOCI, Income tax benefit (expense) |  |  |  |
Income tax benefit (expense), beginning of period | 0 | 95 | 98 | 95
Income tax benefit (expense), gain (loss) recognized in OCI | 0 | (3) | (98) | (3)
Income tax benefit (expense), gain (loss) reclassified from AOCI to Earnings | 0 | 0 | 0 | 0
Income tax benefit (expense), ending of period | 0 | 92 | 0 | 92
AOCI Attributable to Parent, Net of Tax |  |  |  |
Total accumulated other comprehensive (loss) income, beginning of period | (2,266) | (2,192) | (2,113) | (2,196)
Gain (loss) recognized in OCI, net | 99 | (92) | (54) | (88)
Gain (loss) reclassified from AOCI to Earnings, net | 0 | 0 | 0 | 0
Total accumulated other comprehensive (loss) income, end of period | (2,167) | (2,284) | (2,167) | (2,284)
Accumulated Other Comprehensive Earnings/(Loss) |  |  |  |
AOCI Attributable to Parent, Net of Tax |  |  |  |
Total accumulated other comprehensive (loss) income, beginning of period | (93,155) | (95,903) | (91,726) | (97,739)
Gain (loss) recognized in OCI, net | 502 | (502) | (3,642) | (228)
Gain (loss) reclassified from AOCI to Earnings, net | 1,745 | 687 | 4,460 | 2,249
Total accumulated other comprehensive (loss) income, end of period | $ (90,908) | $ (95,718) | $ (90,908) | $ (95,718)

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- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). + References No definition available. + Details
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