Consolidated Statements of Income $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Revenues
Financial Designation, Predecessor and Successor [Fixed List]	Successor
Gross revenue	$ 775,566
Net revenue	775,566
Expenses
Employee compensation and benefits	329,457
Depreciation and amortization	139,330
Technology and communications	39,285
General and administrative	34,960
Professional fees	28,029
Occupancy	14,686
Total expenses	585,747
Operating income	189,819
Tax receivable agreement liability adjustment	33,134
Net interest income	2,373
Income before taxes	225,326
Provision for income taxes	(52,302)
Net income	173,024
Net income attributable to Tradeweb Markets Inc. and non-controlling interests	130,672
Less: Net income attributable to non-controlling interests	46,903
Net income attributable to Tradeweb Markets Inc.	$ 83,769
EPS calculations for pre-IPO and post-IPO periods
Basic | $ / shares	$ 0.57
Diluted | $ / shares	$ 0.54
Weighted average shares outstanding
Basic | shares	148,013,274
Diluted | shares	156,540,246
Transaction fees
Revenues
Gross revenue	$ 423,583
Subscription fees
Revenues
Gross revenue	138,731
Commissions
Revenues
Gross revenue	149,365
Refinitiv market data fees
Revenues
Gross revenue	55,635
Other
Revenues
Gross revenue	8,252
Tradeweb Markets LLC
Expenses
Less: Pre-IPO net income attributable to Tradeweb Markets LLC	42,352
Net income attributable to Tradeweb Markets Inc.	$ 42,352
EPS calculations for pre-IPO and post-IPO periods
Basic | $ / shares	$ 0.19
Diluted | $ / shares	$ 0.19
Weighted average shares outstanding
Basic | shares	222,222,197
Diluted | shares	223,320,457