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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
NEWMARK Group Inc Parent        
Reduction for dividends on preferred stock or units $ 4.6 $ 2.4 $ 6.2 $ 4.9