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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Changes in Accumulated Other Comprehensive Loss | Changes in the accumulated other comprehensive income (loss) ("AOCI") balance by component consisted of the following for the respective years:
(in thousands) |  | Defined Benefit Pension Items |  | Other |  | Total
As of December 31, 2017 |  | $ | (102,955 | ) |  | $ | 33 |  |  | $ | (102,922 | )
Other comprehensive income (loss) before reclassifications, net of tax of $(1,803) and ($22) |  | (5,351 | ) |  | (65 | ) |  | (5,416 | )
Amounts reclassified from AOCI, net of tax of $4,360 |  | 12,941 |  |  | — |  |  | 12,941 |
Net current-period other comprehensive income (loss) |  | 7,590 |  |  | (65 | ) |  | 7,525 |
As of December 31, 2018 |  | (95,365 | ) |  | (32 | ) |  | (95,397 | )
Other comprehensive income (loss) before reclassifications, net of tax of $(1,874) and $(77) |  | (5,461 | ) |  | (223 | ) |  | (5,684 | )
Amounts reclassified from AOCI, net of tax of $718 |  | 2,092 |  |  | — |  |  | 2,092 |
Net current-period other comprehensive income (loss) |  | (3,369 | ) |  | (223 | ) |  | (3,592 | )
As of December 31, 2019 |  | $ | (98,734 | ) |  | $ | (255 | ) |  | $ | (98,989 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: 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=114867106&loc=SL7669686-108580 + Details
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