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Equity (Noncontrolling Interest in Consolidated Entities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Equity [Abstract]      
(Income) loss attributable to noncontrolling interest in consolidated entities $ 6,436 $ (2,032) $ (2,016)