CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Revenues	$ 569,955	$ 513,804
Costs and Expenses:
Cost of revenues (exclusive of depreciation shown below)	301,760	269,673
Depreciation - cost of revenues	12,726	12,037
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	112,180	91,046
Depreciation – selling, general and administrative expenses	3,315	2,809
Amortization	7,315	6,642
Total Costs and Expenses	437,296	382,207
Income from Operations	132,659	131,597
Other Income (Expense):
Interest income	20	167
Interest expense	(14,918)	(13,546)
Other expense, net	(700)	(1,013)
Total Other Expense	(15,598)	(14,392)
Income Before Income Taxes	117,061	117,205
Income Tax Expense	37,291	41,983
Net Income	79,770	75,222
Less: Net Income Attributable to Noncontrolling Interests	621	605
Net Income Attributable to Stericycle, Inc.	$ 79,149	$ 74,617
Earnings Per Common Share Attributable to Stericycle, Inc. Common Shareholders:
Basic	$ 0.93	$ 0.87
Diluted	$ 0.91	$ 0.85
Weighted Average Number of Common Shares Outstanding:
Basic	85,270,046	86,093,301
Diluted	86,613,843	87,459,497