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Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2018

Tradeweb Markets LLC

Entity Information [Line Items]

Net Income Per Share

		Successor				Predecessor			Predecessor				Predecessor
		October 1,				January 1,			Year				Year
		2018 to				2018 to			Ended				Ended
		December 31, 2018				September 30, 2018			December 31, 2017				December 31, 2016
Net Income (in thousands)		$	29,307			$	130,160		$	83,648			$	93,161
Basic Weighted Average Shares Outstanding			222,221,628				215,365,920			212,568,635				210,979,704
Dilutive Effect of Conversion to Equity Settled PRSU			22,223				—			—				—
Diluted Weighted Average Shares Outstanding			222,243,851				215,365,920			212,568,635				210,979,704
Basic Net Income Per Share		$	0.13			$	0.60		$	0.39			$	0.44
Diluted Net Income Per Share		$	0.13			$	0.60		$	0.39			$	0.44

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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