CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues	$ 513,804	$ 460,077
Costs and Expenses:
Cost of revenues (exclusive of depreciation shown below)	269,673	244,182
Depreciation - cost of revenues	12,037	10,588
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	91,046	81,915
Depreciation – selling, general and administrative expenses	2,809	2,151
Amortization	6,642	4,979
Total Costs and Expenses	382,207	343,815
Income from Operations	131,597	116,262
Other Income (Expense):
Interest income	167	92
Interest expense	(13,546)	(12,766)
Other expense, net	(1,013)	(558)
Total Other Expense	(14,392)	(13,232)
Income Before Income Taxes	117,205	103,030
Income Tax Expense	41,983	37,715
Net Income	75,222	65,315
Less: Net Income Attributable to Noncontrolling Interests	605	458
Net Income Attributable to Stericycle, Inc.	$ 74,617	$ 64,857
Earnings Per Common Share Attributable to Stericycle, Inc. Common Shareholders:
Basic	$ 0.87	$ 0.76
Diluted	$ 0.85	$ 0.75
Weighted Average Number of Common Shares Outstanding:
Basic	86,093,301	84,828,280
Diluted	87,459,497	86,587,944