CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Revenues	$ 1,913,149		$ 1,676,048		$ 1,439,388
Costs and Expenses:
Cost of revenues (exclusive of depreciation below)	1,011,213		874,169		734,936
Depreciation-cost of revenues	44,631		41,135		37,025
Selling, general and administrative expenses (exclusive of depreciation and amortization below)	356,817		311,522		279,884
Depreciation-SG&A	9,598		8,642		6,941
Amortization	22,054		16,269		9,919
Total Costs and Expenses	1,444,313		1,251,737		1,068,705
Income from Operations	468,836		424,311		370,683
Other Income (Expense):
Interest income	404		799		266
Interest expense	(51,674)		(49,431)		(37,081)
Other expense, net	(369)		(3,355)		(2,015)
Total Other Expense	(51,639)		(51,987)		(38,830)
Income Before Income Taxes	417,197		372,324		331,853
Income tax expense	147,256		134,981		121,396
Net Income	269,941		237,343		210,457
Less: net income attributable to noncontrolling interests	1,945		2,592		2,578
Net income attributable to Stericycle, Inc.	$ 267,996		$ 234,751		$ 207,879
Earnings Per Common Share:
Basic	$ 3.14	[1]	$ 2.75	[1]	$ 2.44
Diluted	$ 3.08	[1]	$ 2.69	[1]	$ 2.39
Weighted Average Number of Common Shares Outstanding:
Basic	85,401,365		85,467,421		85,057,775
Diluted	87,018,473		87,367,712		86,962,651

[1] EPS calculated on a quarterly basis, and, as such, the amounts may not total the calculated full-year EPS.