(LOSS) EARNINGS PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Computation of Basic and Diluted Loss Per Share

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

In millions, except per share data
	Three Months Ended June 30,						Six Months Ended June 30,
	2020			2019			2020			2019
Numerator:
Net loss attributable to Stericycle, Inc. common shareholders	$	(4.5	)	$	(30.5	)	$	(24.6	)	$	(68.3	)
Numerator for basic loss per share attributable to Stericycle, Inc. common shareholders	$	(4.5	)	$	(30.5	)	$	(24.6	)	$	(68.3	)
Denominator:
Denominator for basic loss per share - weighted average shares		91.4			91.0			91.4			90.9
Effect of dilutive securities:
Denominator for diluted (loss) earnings per share - adjusted weighted average shares after assumed exercises		91.4			91.0			91.4			90.9
(Loss) earnings per share – Basic	$	(0.05	)	$	(0.33	)	$	(0.27	)	$	(0.75	)
(Loss) earnings per share – Diluted	$	(0.05	)	$	(0.33	)	$	(0.27	)	$	(0.75	)