CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues	$ 460,077	$ 398,126
Costs and Expenses:
Cost of revenues (exclusive of depreciation shown below)	244,182	205,878
Depreciation - cost of revenues	10,588	9,818
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	81,915	74,732
Depreciation - SG&A	2,151	1,938
Amortization	4,979	3,347
Total Costs and Expenses	343,815	295,713
Income from Operations	116,262	102,413
Other Income (Expense):
Interest income	92	184
Interest expense	(12,766)	(11,372)
Other expense, net	(558)	(263)
Total Other Expense	(13,232)	(11,451)
Income Before Income Taxes	103,030	90,962
Income Tax Expense	37,715	34,376
Net Income	65,315	56,586
Less: net income attributable to noncontrolling interests	458	912
Net income attributable to Stericycle, Inc.	64,857	55,674
Earnings Per Common Share Attributable to Stericycle Inc. Common Shareholders:
Basic	$ 0.76	$ 0.65
Diluted	$ 0.75	$ 0.64
Weighted Average Number of Common Shares Outstanding:
Basic	84,828,280	85,459,302
Diluted	86,587,944	87,526,683
Comprehensive Income	82,827	69,662
Less: Comprehensive Income Attributable to Noncontrolling Interests	1,524	1,050
Comprehensive Income Attributable to Stericycle, Inc.	$ 81,303	$ 68,612