Note E - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) as Reported in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Currency Translation Adjustments [Member]
Balance	$ (4,338)	$ (1,062)	$ 319
Reclassifications adjustments
Current period credit (charge)	$ (4,719)	$ (3,276)	$ (1,381)
Income tax benefit
Balance	$ (9,037)	$ (4,338)	$ (1,062)
Pension And O P E B Adjustments [Member]
Balance	(12,988)	(7,399)	(16,601)
Reclassifications adjustments	5,364	483	5,526
Current period credit (charge)	(6,038)	(9,294)	8,925
Income tax benefit	304	3,222	(5,249)
Balance	(13,358)	(12,988)	(7,399)
Accumulated Other Comprehensive Income Loss [Member]
Balance	(17,326)	(8,461)	(16,282)
Reclassifications adjustments	5,364	483	5,526
Current period credit (charge)	(10,757)	(12,570)	7,544
Income tax benefit	304	3,222	(5,249)
Balance	(22,415)	(17,326)	$ (8,461)
Balance	(17,326)
Balance	$ (22,415)	$ (17,326)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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