Earnings (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings (Loss) per Share

The following table sets forth the computation of basic and diluted earnings (loss) per share:

	Three-Month Period				Nine-Month Period
	Successor								Predecessor
(in millions, except per share data)	Three Months Ended September 30, 2020		Three Months Ended September 30, 2019		Nine Months Ended September 30, 2020		Period from January 1 to September 30, 2019		Period from January 1 to February 7, 2019
Net income (loss) attributable to Dun & Bradstreet Holdings, Inc. (Successor) / The Dun & Bradstreet Corporation (Predecessor)	$	(17.0)	$	(88.8)	$	(182.6)	$	(410.7)	$	(75.6)
Weighted average number of shares outstanding-basic	415.7		314.5		348.5		314.5		37.2
Weighted average number of shares outstanding-diluted	415.7		314.5		348.5		314.5		37.2
Earnings (loss) per share of common stock:
Basic	$	(0.04)	$	(0.28)	$	(0.52)	$	(1.31)	$	(2.04)
Diluted	$	(0.04)	$	(0.28)	$	(0.52)	$	(1.31)	$	(2.04)