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Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2018 USD ($)
Pension and Other Postretirement Benefit Plans |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total net of tax | $ (1,409)
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total before tax | 2,350
Reclassification out of Accumulated Other Comprehensive Income | Prior service credit |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total before tax | (59)
Reclassification out of Accumulated Other Comprehensive Income | Pension and Other Postretirement Benefit Plans |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total before tax | 2,291
Tax benefit | (882)
Total net of tax | $ 1,409

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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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