EARNINGS PER COMMON SHARE (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Common Share

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

In thousands, except share and per share data
	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Numerator:
Numerator for basic earnings per share Net income attributable to Stericycle, Inc.	$	80,547	$	65,477	$	233,208	$	197,927
Denominator:
Denominator for basic earnings per share weighted average shares	85,849,656		85,748,998		86,021,764		85,251,002
Effect of diluted securities:
Employee stock options	1,551,909		1,556,781		1,475,512		1,660,227
Denominator for diluted earnings per share-adjusted weighted average shares and after assumed conversions	87,401,565		87,305,779		87,497,276		86,911,229
Earnings per share – Basic	$	0.94	$	0.76	$	2.71	$	2.32
Earnings per share – Diluted	$	0.92	$	0.75	$	2.67	$	2.28