Consolidated Statements of Comprehensive Income (Loss) Parenthetical - Continuing Operations - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Taxes on change in unrecognized benefit plan gains and losses arising during the period	$ (16,907)	$ 6,725	$ (4,717)
Taxes on adjustment for previously unrecognized benefit plan gains and losses included in net income	(58)	(103)	(114)
Taxes on changes in unrealized holding gains and losses arising during the period	0	(60)	604
Taxes on adjustment for gain on investment sales included in net income	0	(1,921)	0
Taxes on unrealized gains and losses for cash flow hedging instruments	1,525	(3,054)	0
Taxes on gains and losses reclassified to net income for cash flow hedging instruments	372	2,127	0
Taxes on change in foreign currency translation adjustments	$ 1,089	$ 2,774	$ (1,545)

Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount of tax expense (benefit), before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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