Equity and Noncontrolling Interest - AOCI Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	$ (80,715)	$ (65,100)	$ (87,407)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	(798)	(18,508)	21,015
Amounts Reclassed from AOCI	2,868	3,520	2,660
Related Tax Amounts	475	(627)	(1,368)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(78,170)	(80,715)	(65,100)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(49,322)	(31,893)	(52,255)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	4,754	(17,429)	20,362
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	0	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(44,568)	(49,322)	(31,893)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(30,551)	(34,093)	(36,168)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	(8,088)	1,543	(1,646)
Amounts Reclassed from AOCI	3,169	3,085	5,154
Related Tax Amounts	937	(1,086)	(1,433)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(34,533)	(30,551)	(34,093)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	0	0	0
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	(415)	0	0
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	95	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(320)	0	0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(842)	886	1,016
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	2,951	(2,622)	2,299
Amounts Reclassed from AOCI	(301)	435	(2,494)
Related Tax Amounts	(557)	459	65
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$ 1,251	$ (842)	$ 886

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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