Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income attributable to Tradeweb Markets Inc.	$ 36,812	$ 29,612	$ 111,236	$ 42,440
Foreign currency translation adjustments attributable to Tradeweb Markets Inc.	2,793	(1,329)	(1,024)	(1,976)
Comprehensive income attributable to Tradeweb Markets Inc.	39,605	28,283	110,212	40,464
Foreign currency translation adjustments	588	(737)	(715)	(1,096)
Comprehensive income	10,824	18,229	39,990	29,858
Tradeweb Markets Inc
Comprehensive income, net income	10,236	18,966	40,705	30,954
Tradeweb Markets LLC
Comprehensive income, net income	$ 0	$ 0	$ 0	42,352
Foreign currency translation adjustments				988
Comprehensive income				$ 43,340