Accumulated Other Comprehensive Income - AOCI Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Beginning Balance	$ (63,990)	$ (26,598)
Other Comprehensive (Loss) Income, before reclassifications	(6,283)	(24,693)
Amounts reclassified from AOCI	240	(2,223)
Related tax amounts	(228)	286
Ending Balance	(70,261)	(53,228)
Currency Translation Adjustments [Member]
Beginning Balance	(49,843)	(2,875)
Other Comprehensive (Loss) Income, before reclassifications	(6,867)	(25,459)
Amounts reclassified from AOCI	0	0
Related tax amounts	0	0
Ending Balance	(56,710)	(28,334)
Defined Benefit Pension Plans [Member]
Beginning Balance	(13,172)	(23,467)
Other Comprehensive (Loss) Income, before reclassifications	432	781
Amounts reclassified from AOCI	229	862
Related tax amounts	(165)	(351)
Ending Balance	(12,676)	(22,175)
Unrealized Gain (Loss) in Available-for-Sale Securities [Member]
Beginning Balance	397	3,342
Other Comprehensive (Loss) Income, before reclassifications	1,429	(745)
Amounts reclassified from AOCI	11	(3,085)
Related tax amounts	266	805
Ending Balance	(603)	317
Derivative Instruments
Beginning Balance	(1,372)	(3,598)
Other Comprehensive (Loss) Income, before reclassifications	1,429	730
Amounts reclassified from AOCI	0	0
Related tax amounts	(329)	(168)
Ending Balance	$ (272)	$ (3,036)

- 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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