Redeemable Noncontrolling Interests (Components of Redeemable Noncontrolling Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Redeemable Noncontrolling Interests [Abstract]
Beginning balance	$ 16,052
Purchase of noncontrolling interests		13,990
Additional investment		179
Foreign currency translation adjustments	(52)	460
Adjustment to fair value	(749)	1,130
Net (loss) income attributable to noncontrolling interests	(57)	293
Ending balance	$ 15,194	$ 16,052

Noncontrolling Interest, Additional Investment

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- Definition

Noncontrolling Interest, Adjustment to Fair Value

+ References

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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Amount before tax, after 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, attributable to noncontrolling interests.

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- Definition

The cash outflow during the period for redemption of redeemable noncontrolling interests.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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