10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2015 or

¨     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from             to             

Commission File Number 0-21229

Stericycle, Inc.

(Exact name of registrant as specified in its charter)

Delaware	36-3640402
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification Number)

28161 North Keith Drive

Lake Forest, Illinois 60045

(Address of principal executive offices, including zip code)

(847) 367-5910

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file reports), and (2) has been subject to such filing requirements for the past 90 days. YES x NO ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES x NO ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definition of "large accelerated filer”, "accelerated filer” and "smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x	Accelerated filer ¨
Non-accelerated filer ¨	Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES ¨ NO x

As of October 30, 2015 there were 84,984,775 shares of the registrant’s Common Stock outstanding.

Stericycle, Inc.

Table of Contents

	Page No.
PART I.  Financial Information
Item 1.  Financial Statements (Unaudited)
Condensed Consolidated Balance Sheets as of September 30, 2015 and December 31, 2014	1
Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2015 and 2014	2
Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2015 and 2014	3
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2015 and 2014	4
Condensed Consolidated Statements of Changes in Equity for the nine months ended September 30, 2015 and year ended December 31, 2014	5
Notes to Condensed Consolidated Financial Statements	6
Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3.  Quantitative and Qualitative Disclosures about Market Risk	34
Item 4.  Controls and Procedures	35
PART II.  Other Information
Item 1.  Legal Proceedings	37
Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds	37
Item 6.  Exhibits	38
Signatures	39

PART I. – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

STERICYCLE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

In thousands, except share and per share data
	September 30, 2015			December 31, 2014
ASSETS
Current Assets:
Cash and cash equivalents	$	32,883		$	22,236
Short-term investments	636,288			380
Accounts receivable, less allowance for doubtful accounts of $19,896 in 2015 and $19,083 in 2014	524,503			465,473
Deferred income taxes	51,094			28,322
Prepaid expenses	34,197			30,632
Other current assets	40,500			33,173
Total Current Assets	1,319,465			580,216
Property, plant and equipment, less accumulated depreciation of $402,113 in 2015 and $364,124 in 2014	464,898			460,408
Goodwill	2,447,454			2,418,832
Intangible assets, less accumulated amortization of $136,251 in 2015 and $114,922 in 2014	909,503			909,645
Other assets	35,137			32,621
Total Assets	$	5,176,457		$	4,401,722
LIABILITIES AND EQUITY
Current Liabilities:
Current portion of long-term debt	$	106,405		$	131,969
Accounts payable	150,213			114,596
Accrued liabilities	192,506			131,743
Deferred revenues	18,223			21,624
Other current liabilities	66,587			61,599
Total Current Liabilities	533,934			461,531
Long-term debt, net of current portion	1,409,687			1,527,246
Deferred income taxes	430,203			431,643
Other liabilities	68,191			64,117
Equity:
Mandatory convertible preferred stock, Series A (par value $0.01 per share, 1,000,000 shares authorized, 770,000 issued and outstanding in 2015)	8			—
Common stock (par value $0.01 per share, 120,000,000 shares authorized, 84,942,134 issued and outstanding in 2015 and 84,883,517 issued and outstanding in 2014)	849			849
Additional paid-in capital	1,125,667			289,211
Accumulated other comprehensive loss	(237,246		)	(138,419		)
Retained earnings	1,826,835			1,743,371
Total Stericycle, Inc.’s Equity	2,716,113			1,895,012
Noncontrolling interest	18,329			22,173
Total Equity	2,734,442			1,917,185
Total Liabilities and Equity	$	5,176,457		$	4,401,722

The accompanying notes are an integral part of these condensed consolidated financial statements.

1

STERICYCLE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

In thousands, except share and per share data
	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Revenues	$	718,596		$	667,877		$	2,097,604		$	1,878,654
Costs and Expenses:
Cost of revenues (exclusive of depreciation shown below)	404,918			373,973			1,169,051			1,026,149
Depreciation - cost of revenues	14,003			15,235			42,723			43,063
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	185,932			125,603			509,047			355,330
Depreciation – selling, general and administrative expenses	4,248			5,033			12,753			12,325
Amortization	9,239			8,497			26,957			24,214
Total Costs and Expenses	618,340			528,341			1,760,531			1,461,081
Income from Operations	100,256			139,536			337,073			417,573
Other Income (Expense):
Interest income	8			27			82			97
Interest expense	(17,386		)	(16,644		)	(52,448		)	(47,980		)
Other expense, net	(1,754		)	(477		)	(3,956		)	(1,569		)
Total Other Expense	(19,132		)	(17,094		)	(56,322		)	(49,452		)
Income Before Income Taxes	81,124			122,442			280,751			368,121
Income Tax Expense	28,404			39,401			91,325			122,633
Net Income	52,720			83,041			189,426			245,488
Less: net income attributable to noncontrolling interests	457			196			1,256			1,558
Net Income Attributable to Stericycle, Inc.	52,263			82,845			188,170			243,930
Less: mandatory convertible preferred stock dividend	1,684			—			1,684			—
Net Income Attributable to Stericycle, Inc. Common Shareholders	$	50,579		$	82,845		$	186,486		$	243,930
Earnings Per Common Share Attributable to Stericycle, Inc. Common Shareholders:
Basic	$	0.60		$	0.98		$	2.19		$	2.87
Diluted	$	0.59		$	0.96		$	2.16		$	2.83
Weighted Average Number of Common Shares Outstanding:
Basic	84,884,599			84,858,360			84,960,955			84,940,975
Diluted	86,120,315			86,116,455			86,234,859			86,237,202

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

STERICYCLE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

In thousands
	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net Income	$	52,720		$	83,041		$	189,426		$	245,488
Other Comprehensive Income/(Loss):
Foreign currency translation adjustments	(55,214		)	(51,552		)	(95,155		)	(40,777		)
Amortization of cash flow hedge into income, net of tax ($176 and $55, and $284 and $155 for the three- and nine-months ended September 30, 2015 and 2014, respectively)	278			97			458			254
Change in fair value of cash flow hedge, net of tax ($79 and $0, and $2,577 and $47 for the three- and nine-months ended September 30, 2015 and 2014, respectively)	(216		)	(159		)	(3,994		)	(308		)
Total Other Comprehensive Loss	(55,152		)	(51,614		)	(98,691		)	(40,831		)
Comprehensive (Loss)/Income	(2,432		)	31,427			90,735			204,657
Less: Comprehensive Income/(Loss) Attributable to Noncontrolling Interests	1,644			(1,621		)	1,392			(390		)
Comprehensive (Loss)/Income Attributable to Stericycle, Inc.	$	(4,076	)	$	33,048		$	89,343		$	205,047

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

STERICYCLE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

In thousands
	Nine Months Ended September 30,
	2015			2014
OPERATING ACTIVITIES:
Net income	$	189,426		$	245,488
Adjustments to reconcile net income to net cash provided by operating activities:
Stock compensation expense	16,158			13,365
Excess tax benefit of stock options exercised	(15,483		)	(10,747		)
Depreciation	55,476			55,388
Amortization	26,957			24,214
Deferred income taxes	(17,169		)	8,833
Change in fair value of contingent consideration	(640		)	3,953
Other, net	6,326			1,379
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable	(66,352		)	(25,420		)
Accounts payable	29,170			13,383
Accrued liabilities	77,820			17,640
Deferred revenues	(3,412		)	2,326
Other assets and liabilities	(4,986		)	(4,830		)
Net cash provided by operating activities	293,291			344,972
INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired	(97,098		)	(328,811		)
Purchases of investments	(635,919		)	(2,051		)
Capital expenditures	(72,566		)	(66,262		)
Net cash used in investing activities	(805,583		)	(397,124		)
FINANCING ACTIVITIES:
Repayments of long-term debt and other obligations	(61,805		)	(45,031		)
Proceeds from foreign bank debt	42,535			151,605
Repayments of foreign bank debt	(76,387		)	(136,025		)
Proceeds from term loan	250,000			—
Repayment of term loan	(250,000		)	—
Proceeds from private placement of long-term note	300,000			—
Repayments of private placement of long-term note	(100,000		)	—
Proceeds from senior credit facility	1,338,140			1,154,100
Repayments of senior credit facility	(1,614,968		)	(979,059		)
Payments on capital lease obligations	(2,813		)	(4,014		)
Payments of deferred financing costs	—			(2,280		)
Payment for hedge	(8,833		)	—
Purchases and cancellations of treasury stock	(103,029		)	(157,004		)
Proceeds from issuance of mandatory convertible preferred stock	746,900			—
Proceeds from issuance of common stock	53,529			33,904
Excess tax benefit of stock options exercised	15,483			10,747
Payments to noncontrolling interests	(5,236		)	(732		)
Net cash provided by financing activities	523,516			26,211
Effect of exchange rate changes on cash and cash equivalents	(577		)	759
Net increase/ (decrease) in cash and cash equivalents	10,647			(25,182		)
Cash and cash equivalents at beginning of period	22,236			67,167
Cash and cash equivalents at end of period	$	32,883		$	41,985
NON-CASH ACTIVITIES:
Issuances of obligations for acquisitions	$	71,905		$	100,944

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

STERICYCLE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

Nine Months Ended September 30, 2015 and

Year Ended December 31, 2014

(Unaudited)

In thousands
	Stericycle, Inc. Equity
	Preferred Stock			Common Stock					Additional Paid-In Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interest			Total  Equity
	Shares	Amount		Shares		Amount
Balance at January 1, 2014	—	$	—	85,500		$	855		$	195,110		$	1,610,964		$	(56,468	)	$	17,077		$	1,767,538
Net income												326,456						1,690			328,146
Currency translation adjustment															(80,221		)	(2,650		)	(82,871		)
Change in qualifying cash flow hedge, net of tax															(1,730		)				(1,730		)
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases				1,061		11			58,551												58,562
Purchase and cancellation of treasury stock				(1,677	)	(17		)				(194,049		)							(194,066		)
Stock compensation expense									17,773												17,773
Excess tax benefit of stock options exercised									17,906												17,906
Noncontrolling interests attributable to acquisitions																		6,781			6,781
Reduction to noncontrolling interests due to additional ownership									(129		)							(725		)	(854		)
Balance at December 31, 2014	—	—		84,884		849			289,211			1,743,371			(138,419		)	22,173			1,917,185
Net income												188,170						1,256			189,426
Currency translation adjustment															(95,291		)	136			(95,155		)
Change in qualifying cash flow hedge, net of tax															(3,536		)				(3,536		)
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases				822		7			57,923												57,930
Issuance of mandatory convertible preferred stock	770	8							746,892												746,900
Purchase and cancellation of treasury stock				(764	)	(7		)				(103,022		)							(103,029		)
Preferred stock dividend												(1,684		)							(1,684		)
Stock compensation expense									16,158												16,158
Excess tax benefit of stock options exercised									15,483												15,483
Reduction to noncontrolling interests due to additional ownership																		(5,236		)	(5,236		)
Balance at September 30, 2015	770	$	8	84,942		$	849		$	1,125,667		$	1,826,835		$	(237,246	)	$	18,329		$	2,734,442

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

STERICYCLE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Unless the context requires otherwise, "we", "us" or "our" refers to Stericycle, Inc. and its subsidiaries on a consolidated basis.

NOTE 1 – BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations. However, the Company believes the disclosures included in the accompanying condensed consolidated financial statements are adequate to make the information presented not misleading. In our opinion, all adjustments necessary for a fair presentation for the periods presented have been reflected and are of a normal recurring nature. These condensed consolidated financial statements should be read in conjunction with the Stericycle, Inc. and Subsidiaries Consolidated Financial Statements and notes thereto for the year ended December 31, 2014, as filed with our Annual Report on Form 10-K for the year ended December 31, 2014. The results of operations for the nine months ended September 30, 2015 are not necessarily indicative of the results that may be achieved for the entire year ending December 31, 2015.

There were no material changes in the Company’s critical accounting policies since the filing of its 2014 Form 10-K. As discussed in the 2014 Form 10-K, the preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make certain estimates and assumptions that affect the amount of reported assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and revenues and expenses during the periods reported. Actual results may differ from those estimates.

We have evaluated subsequent events through the date of filing this quarterly report on Form 10-Q. No events have occurred that would require adjustment to or disclosure in the condensed consolidated financial statements.

NOTE 2 – ACQUISITIONS

The following table summarizes the locations of our acquisitions for the nine months ended September 30, 2015:

Acquisition Locations	2015
United States	13
Brazil	2
Canada	1
Ireland	1
Mexico	2
Netherlands	1
Romania	4
Republic of Korea	6
Spain	3
Total	33

6

During the quarter ended March 31, 2015, we completed fifteen acquisitions. Domestically, we acquired 100% of the stock of one regulated waste business and selected assets of three regulated waste businesses. Internationally, in Brazil, we acquired 100% of the stock of two regulated waste businesses. In Ireland, we acquired 100% of the stock of one regulated waste business. In Mexico, we acquired 100% of the stock of two regulated waste businesses. In Romania, we acquired selected assets of two regulated waste businesses. In the Republic of Korea, we acquired selected assets of three regulated waste businesses. In Spain, we acquired selected assets of one regulated waste business.

During the quarter ended June 30, 2015, we completed eight acquisitions. Domestically, we acquired 100% of the stock of one regulated waste business, selected assets of four regulated waste businesses and one communication services business. Internationally, in Canada, we acquired 100% of the stock of one communication services business, and in the Netherlands, we acquired 100% of the stock of one regulated waste business.

During the quarter ended September 30, 2015, we completed ten acquisitions. Domestically we acquired 100% of the stock of one communication services business and selected assets of two regulated waste businesses. Internationally, in Romania, we acquired selected assets of one regulated waste business and 100% of the stock of one regulated waste business. In Spain, we acquired selected assets of two regulated waste businesses. In the Republic of Korea, we acquired selected assets of three regulated waste businesses.

The following table summarizes the aggregate purchase price paid for acquisitions and other adjustments of consideration to be paid for acquisitions during the nine months ended September 30:

In thousands
	Nine Months Ended September 30,
	2015		2014
Cash	$	97,098	$	328,811
Promissory notes	55,793		78,325
Deferred consideration	3,167		6,124
Contingent consideration	12,945		16,495
Total purchase price	$	169,003	$	429,755

For financial reporting purposes, our acquisitions were accounted for using the acquisition method of accounting. These acquisitions resulted in the recognition of goodwill in our financial statements reflecting the premium paid to acquire businesses that we believe are complementary to our existing operations and fit our growth strategy. During the nine months ended September 30, 2015, we recognized a net increase in goodwill of $85.4 million, excluding the effect of foreign currency translation (see Note 9 – Goodwill and Other Intangible Assets). A net increase of $56.6 million was assigned to our United States reportable segment, and a net increase of $28.8 million was assigned to our International reportable segment. Approximately $28 million of the goodwill recognized during the nine months ended September 30, 2015 will be deductible for income taxes.

During the nine months ended September 30, 2015, we recognized a net increase in intangible assets from acquisitions of $70.3 million, excluding the effect of foreign currency translation. The changes include $64.7 million in the estimated fair value of acquired customer relationships with amortizable lives of 15 to 40 years, $1.4 million in permits with indefinite lives, and $4.2 million in tradenames with indefinite lives.

The purchase prices for these acquisitions in excess of acquired tangible assets have been primarily allocated to goodwill and other intangibles and are preliminary, pending completion of certain intangible asset valuations and completion accounts. The following table summarizes the preliminary purchase price allocation for current period acquisitions and other adjustments to purchase price allocations during the nine months ended September 30:

7

In thousands
	Nine Months Ended September 30,
	2015			2014
Fixed assets	$	13,635		$	127,621
Intangibles	70,282			242,792
Goodwill	85,393			202,391
Accounts receivable	22,475			56,696
Accounts payable	(10,637		)	(32,561		)
Net other liabilities	(4,875		)	(67,564		)
Debt	(4,803		)	(22,097		)
Net deferred tax liabilities	(2,467		)	(70,580		)
Noncontrolling interests	—			(6,943		)
Total purchase price allocation	$	169,003		$	429,755

During the nine months ended September 30, 2015 and 2014, the Company incurred $40.0 million and $10.7 million, respectively, of acquisition related expenses. These expenses are included with "Selling, general and administrative expenses" on our Condensed Consolidated Statements of Income. The results of operations of these acquired businesses have been included in the Condensed Consolidated Statements of Income from the date of the acquisition.

NOTE 3 – NEW ACCOUNTING STANDARDS

Accounting Standards Recently Adopted

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

On January 1, 2015, we adopted guidance on the presentation and disclosures of reporting discontinued operations. The new guidance defines a discontinued operation as a disposal of a component or group of components that is disposed of or is classified as held for sale and "represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results." For disposals of individually significant components that do not qualify as discontinued operations, an entity must disclose pre-tax earnings of the disposed component. The Company has not disposed of a component of our entity and therefore the implementation of this guidance did not affect our financial position, results of operations, or disclosure requirements.

Accounting Standards Issued But Not Yet Adopted

Interest-Imputation of Interest

In April 2015, the Financial Accounting Standards Board (the "FASB") issued guidance that requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs are not affected by the accounting standard update. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The revised standard will be adopted by the Company on January 1, 2016, will be applied retrospectively and will require reclassifications within the Company’s consolidated balance sheets and statements of cash flows.  The revised standard only affects presentation and therefore will not have an impact on the Company’s results of operations.

8

Revenue From Contracts With Customers

In May 2014, the FASB issued guidance to provide a single, comprehensive revenue recognition model for all contracts with customers. The revenue guidance contains principles that an entity will apply to determine the measurement of revenue and timing of when it is recognized. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. The amended authoritative guidance associated with revenue recognition is effective for the Company on January 1, 2018. The amended guidance may be applied retrospectively for all periods presented or retrospectively with the cumulative effect of initially applying the amended guidance recognized at the date of initial application. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

Accounting for Share-Based Payment When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period

In June 2014, the FASB issued guidance that applies to all reporting entities that grant their employees share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. It requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and follows existing accounting guidance for the treatment of performance conditions. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The Company does not have any share-based payments with a performance target and therefore does not expect the adoption of this guidance to have any impact on the Company’s financial position or results of operations.

Simplifying the Accounting for Measurement-Period Adjustments

In September 2015, the FASB issued guidance that eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. Instead, an acquirer will recognize a measurement-period adjustments during the period in which it determines the amount of the adjustment. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

NOTE 4 – FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (2) an entity's own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

Level 1 – Quoted prices in active markets for identical assets or liabilities.

9

Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability.

Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of assets and liabilities and their placement within the fair value hierarchy levels. The impact of our creditworthiness has been considered in the fair value measurements noted below. In addition, the fair value measurement of a liability must reflect the nonperformance risk of an entity. There were no movements of items between fair value hierarchies.

In thousands
			Fair Value Measurements Using
	Total as of September 30, 2015		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	32,883	$	32,883	$	—	$	—
Short-term investments	636,288		636,288		—		—
Derivative financial instruments	1,111		—		1,111		—
Total assets	$	670,282	$	669,171	$	1,111	$	—
Liabilities:
Contingent consideration	$	25,835	$	—	$	—	$	25,835
Total liabilities	$	25,835	$	—	$	—	$	25,835

In thousands
			Fair Value Measurements Using
	Total as of December 31, 2014		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	22,236	$	22,236	$	—	$	—
Short-term investments	380		380		—		—
Derivative financial instruments	515		—		515		—
Total assets	$	23,131	$	22,616	$	515	$	—
Liabilities:
Contingent consideration	$	19,941	$	—	$	—	$	19,941
Derivative financial instruments	2,408		—		2,408		—
Total liabilities	$	22,349	$	—	$	2,408	$	19,941

In September 2015, short-term investments increased by $636.2 million due to funds received from the issuance of mandatory convertible preferred stock which were invested in short-term money market funds until the funding of a portion of the Shred-it acquisition described in Note 15 - Subsequent Events.

For our derivative financial instruments we use a market approach valuation technique based on observable market transactions of spot and forward rates.

We recorded a $1.1 million asset related to the fair value of the U.S. dollar-Canadian dollar foreign currency swap which was classified as other assets at September 30, 2015. The objective of the swap is to offset the foreign exchange risk to the U.S. dollar equivalent cash outflows for our Canadian subsidiary.

10

In March 2015, we cash settled a treasury lock hedge for $8.8 million of which $5.3 million, net of $3.5 million tax, was recognized in accumulated other comprehensive income. The purpose was to lock in the interest rate on the issuance of private placement debt in July 2015 and to eliminate interest rate risk.

We had contingent consideration liabilities recorded using Level 3 inputs in the amount of $25.8 million, of which $8.9 million was classified as current liabilities, at September 30, 2015. Contingent consideration liabilities were $19.9 million at December 31, 2014. Contingent consideration represents amounts expected to be paid as part of acquisition consideration only if certain future events occur. These events are usually targets for revenues or earnings related to the business acquired. We arrive at the fair value of contingent consideration by applying a weighted probability of potential outcomes to the maximum possible payout. The calculation of these potential outcomes is dependent on both past financial performance and management assumptions about future performance. If the financial performance measures were all fully met, our maximum liability would be $45.2 million at September 30, 2015. Contingent consideration liabilities are reassessed each quarter and are reflected in the Condensed Consolidated Balance Sheets as part of "Other current liabilities" and "Other liabilities". Changes to contingent consideration are reflected in the table below:

In thousands
Contingent consideration at December 31, 2014	$	19,941
Increases due to acquisitions	12,945
Decrease due to payments	(1,444		)
Changes due to foreign currency fluctuations	(4,967		)
Changes in fair value reflected in Selling, general, and administrative expenses	(640		)
Contingent consideration at September 30, 2015	$	25,835

Fair Value of Debt: At September 30, 2015, the fair value of the Company’s debt obligations was estimated, using Level 2 inputs, at $1.52 billion, the same as its carrying amount. At December 31, 2014, the fair value of the Company’s debt obligations was estimated, using Level 2 inputs, at $1.67 billion, as compared to its carrying amount of $1.66 billion. The fair values were estimated using an income approach by applying market interest rates for comparable instruments. The Company has no current plans to retire a significant amount of its debt prior to maturity.

NOTE 5 – INCOME TAXES

We file income tax returns in the U.S, in various states and in certain foreign jurisdictions.

The Company has recorded accruals to cover uncertain tax positions taken on previously filed tax returns. Such liabilities relate to additional taxes, interest and penalties the Company may be required to pay in various tax jurisdictions. During the course of examinations by various taxing authorities, proposed adjustments may be asserted. The Company evaluates such items on a case-by-case basis and adjusts the accrual for uncertain tax positions. During the quarter ended September 30, 2015, we had no material changes to our accruals related to previous  or current uncertain tax positions. The effective tax rates for the quarters ended September 30, 2015 and 2014 were approximately 35.0% and 32.2%, respectively. The increase in the current quarter tax rate is primarily related to larger discrete benefits utilized by the Company in the comparable 2014 period.

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NOTE 6 – STOCK BASED COMPENSATION

At September 30, 2015, we had the following stock option and stock purchase plans:

• the 2014 Incentive Stock Plan, which our stockholders approved in May 2014;

• the 2011 Incentive Stock Plan, which our stockholders approved in May 2011;

• the 2008 Incentive Stock Plan, which our stockholders approved in May 2008;

• the 2005 Incentive Stock Plan, which our stockholders approved in April 2005;

• the 2000 Non-statutory Stock Option Plan, which expired in February 2010;

• the 1997 Stock Option Plan, which expired in January 2007;

• the 1996 Directors Stock Option Plan, which expired in May 2006; and

• the Employee Stock Purchase Plan ("ESPP"), which our stockholders approved in May 2001.

Stock-Based Compensation Expense:

The following table presents the total stock-based compensation expense resulting from stock option awards, restricted stock units ("RSUs"), and the ESPP included in the Condensed Consolidated Statements of Income:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Cost of revenues – stock option plan	$	24	$	14	$	69	$	42
Selling, general and administrative – stock option plan	4,416		3,600		13,795		11,459
Selling, general and administrative – RSUs	382		319		1,103		948
Selling, general and administrative – ESPP	432		308		1,191		916
Total pre-tax expense	$	5,254	$	4,241	$	16,158	$	13,365

The following table sets forth the tax benefits related to stock compensation:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Tax benefit recognized in Statement of Income	$	1,501	$	1,319	$	5,103	$	3,248
Excess tax benefit of stock options exercised	4,584		3,667		15,483		10,747

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Stock Options:

Stock option activity for the nine months ended September 30, 2015, is summarized as follows:

	Number of Options		Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Life	Total Aggregate Intrinsic Value
					(in years)	(in thousands)
Outstanding at beginning of year	5,377,857		$	80.88
Granted	959,551		131.20
Exercised	(791,434	)	67.83
Forfeited	(138,249	)	108.71
Canceled or expired	(1,876	)	76.08
Outstanding at September 30, 2015	5,405,849		$	91.02	5.89	$	261,110
Exercisable at September 30, 2015	2,837,919		$	72.66	4.95	$	189,143
Vested and expected to vest at September 30, 2015	5,183,104		$	89.90

As of September 30, 2015, there was $44.0 million of total unrecognized compensation expense related to non-vested option awards, which is expected to be recognized over a weighted average period of 3.03 years.

The following table sets forth the total intrinsic value of options exercised:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Total intrinsic value of options exercised	$	14,888	$	14,375	$	54,538	$	40,893

The total intrinsic value of options exercised represents the total pre-tax value (the difference between the sales price on that trading day the option was exercised and the exercise price associated with the respective option).

The Company uses historical data to estimate expected life and volatility. The estimated fair value of stock options at the time of the grant using the Black-Scholes option pricing model was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Stock options granted (shares)	24,275			11,555			959,551			975,038
Weighted average fair value at grant date (per share)	$	23.88		$	21.32		$	22.83		$	21.30
Assumptions:
Expected term (in years)	4.79			4.78			4.79			4.75
Expected volatility	16.01		%	16.98		%	16.56		%	17.39		%
Expected dividend yield	—		%	—		%	—		%	—		%
Risk free interest rate	1.49		%	1.59		%	1.44		%	1.52		%

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Restricted Stock Units:

Restricted stock units ("RSUs") vest at the end of three or five years. Our 2008, 2011 and 2014 Plans include a share reserve related to RSUs granted at a 2-1 ratio. A summary of the status of our non-vested RSUs and changes during the nine months ended September 30, 2015, are as follows:

	Number of Units		Weighted Average Grant Date Fair Value		Total Aggregate Intrinsic Value
					(in thousands)
Non-vested at beginning of year	63,600		$	96.04
Granted	10,624		130.40
Vested and released	—		—
Forfeited	(4,273	)	101.20
Non-vested at September 30, 2015	69,951		$	100.94	$	9,745

As of September 30, 2015, there was $4.2 million of total unrecognized compensation expense related to RSUs, which is expected to be recognized over a weighted average period of 2.44 years.

NOTE 7 – EQUITY

Series A Mandatory Convertible Preferred Stock Offering: On September 15, 2015, we completed a registered public offering of 7,700,000 depositary shares, each representing a 1/10th interest in a share of our 5.25% Series A Mandatory Convertible Preferred Stock, par value $0.01 per share (the "Series A Preferred Stock"), at a public offering price of $100.00 per depository share for total gross proceeds of $770.0 million. Net proceeds were $746.9 million after deducting underwriting discounts, commissions and expenses. We used the net proceeds from this offering to fund a portion of the purchase price paid under our acquisition of Shred-it (see Note 15 - Subsequent Events).

Unless earlier converted or redeemed, each share of the Series A Preferred Stock will automatically convert into between 5.8716 and 7.3394 shares of our common stock, subject to anti-dilution and other adjustments, on the mandatory conversion date, which is expected to be September 15, 2018. The number of shares of our common stock issuable on conversion will be determined based on the volume-weighted average price of our common stock over the 20 trading day period commencing on and including the 23^rd scheduled trading day prior to September 15, 2018. Subject to certain restrictions, at any time prior to September 15, 2018, holders of the Series A Preferred Stock may elect to convert all or a portion of their shares into common stock at the minimum conversion rate of 5.8716 shares of common stock per share of Series A Preferred Stock, subject to adjustment.

Dividends on shares of the Series A Preferred Stock are payable on a cumulative basis when, as and if declared by our board of directors, or an authorized committee thereof, at an annual rate of 5.25% on the liquidation preference of $1,000 per share (and, correspondingly, $100.00 per share with respect to the depositary shares). The dividends may be payable in cash, or subject to certain limitations, in shares of our common stock or any combination of cash and shares of our common stock on March 15, June 15, September 15 and December 15 of each year, commencing on December 15, 2015, and to, and including, September 15, 2018.

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The following table provides information about our repurchase of shares of our common stock during the nine months ended September 30, 2015:

	Number of Shares Repurchased and Canceled	Amount for Repurchases		Average Price Paid per Share
		(in thousands)
Three months ended March 31, 2015	100,713	$	13,771	$	136.74
Three months ended June 30, 2015	574,807	77,390		134.64
Three months ended September 30, 2015	88,376	11,868		134.29
Nine months ended September 30, 2015	763,896	$	103,029	$	134.87
Three months ended March 31, 2014	685,990	$	78,340	$	114.20
Three months ended June 30, 2014	527,243	58,846		111.61
Three months ended September 30, 2014	198,728	23,173		116.60
Nine months ended September 30, 2014	1,411,961	$	160,359	$	113.57

NOTE 8 – EARNINGS PER COMMON SHARE

Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, shares to be purchased under the Company’s employee stock purchase plan, RSUs, and the assumed conversion of mandatory convertible preferred stock. The effect of potentially dilutive securities is reflected in diluted earnings per share by application of the "treasury stock method" for outstanding restricted stock awards and stock options. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities. For the issue of the mandatory convertible preferred stock, we use the more dilutive of the "dividend method" or the "if-converted method". Under the dividend method, the net income is reduced by the amount of the accrued dividend related to mandatory convertible preferred stock. Under the if-converted method, the dividend is ignored in favor of the diluted share count that would occur under the assumption that the mandatory convertible preferred shares were converted to common shares at the closing share price on the date of issuance.

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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,
	2015			2014		2015			2014
Numerator:
Net income attributable to Stericycle, Inc.	$	52,263		$	82,845	$	188,170		$	243,930
Mandatory convertible preferred stock dividend (1)	(1,684		)	—		(1,684		)	—
Numerator for basic earnings per share attributable to Stericycle, Inc. common shareholders	$	50,579		$	82,845	$	186,486		$	243,930
Denominator:
Denominator for basic earnings per share-weighted average shares	84,884,599			84,858,360		84,960,955			84,940,975
Effect of diluted securities:
Employee stock options	1,235,716			1,258,095		1,273,904			1,296,227
Mandatory convertible preferred stock (2)	—			—		—			—
Denominator for diluted earnings per share-adjusted weighted average shares and after assumed exercises	86,120,315			86,116,455		86,234,859			86,237,202
Earnings per share – Basic	$	0.60		$	0.98	$	2.19		$	2.87
Earnings per share – Diluted	$	0.59		$	0.96	$	2.16		$	2.83

(1) Mandatory convertible preferred stock dividend - no dividend was declared or paid as of September 30, 2015.

(2) Weighted average common shares issuable upon the assumed conversion of the mandatory convertible preferred stock totaling 921,207 shares were excluded from the computation of diluted earnings per share as such conversion would have been antidilutive.

For additional information regarding outstanding employee stock options, see Note 6 - Stock Based Compensation.

NOTE 9 – GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill and other identifiable indefinite lived intangibles are not amortized, but are subject to an annual impairment test, or more frequent testing if circumstances indicate that they may be impaired.

Goodwill:

We have two geographical reportable segments, "United States" and "International", both of which have goodwill. We have retroactively reclassified $4.3 million of goodwill related to Puerto Rico from the United States segment to the International segment. The changes in the carrying amount of goodwill since January 1, 2014, by reportable segment, were as follows:

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In thousands
	United States			International			Total
Balance as of January 1, 2014	$	1,673,810		$	557,772		$	2,231,582
Goodwill acquired during the year	169,754			88,263			258,017
Purchase accounting allocation adjustments	(4,825		)	(17,595		)	(22,420		)
Changes due to foreign currency fluctuations	(2,337		)	(46,010		)	(48,347		)
Balance as of December 31, 2014	1,836,402			582,430			2,418,832
Goodwill acquired during the year	71,119			29,200			100,319
Purchase accounting allocation adjustments	(14,514		)	(412		)	(14,926		)
Goodwill other changes	—			(440		)	(440		)
Changes due to foreign currency fluctuations	(4,210		)	(52,121		)	(56,331		)
Balance at September 30, 2015	$	1,888,797		$	558,657		$	2,447,454

Current year adjustments to goodwill for certain 2014 acquisitions are primarily due to the finalization of intangible asset valuations.

During the quarter ended June 30, 2015, we performed our annual goodwill impairment evaluation for our three reporting units: Domestic Regulated and Compliance Services, Domestic Regulated Recall and Returns Management Services, and International Regulated and Compliance Services. We calculated fair value for our reporting units using an income method and validated those results using a market approach. Both the income and market approaches indicated no impairment to goodwill to any of our three reporting units.

Income Approach: The income approach uses expected future cash flows of each reporting unit and discounts those cash flows to present values. Expected future cash flows are calculated using management assumptions of internal growth, capital expenditures, and cost efficiencies. Future acquisitions are not included in the expected future cash flows. We use a discount rate based on our Company calculated weighted average cost of capital which is adjusted for each of our reporting units based on size risk premium and country risk premium. Significant assumptions used in the income approach include realization of future cash flows and the discount rate used to present value those cash flows.

The results of our goodwill impairment test using the income approach indicated the fair value of our Domestic Regulated and Compliance Services and Recall and Returns Management Services reporting units exceeded book value by a substantial amount; in excess of 100%. Our International Regulated and Compliance Services reporting units' fair value exceeded book value by approximately 88% and had $589.3 million in assigned goodwill at June 30, 2015.

Market Approach: Our market approach begins by calculating the market capitalization of the Company using the average stock price for the prior twelve months and the outstanding share count at June 30, 2015. We then look at the Company's Earnings Before Interest, Tax, Depreciation, and Amortization ("EBITDA"), adjusted for stock compensation expense and other items, such as changes in the fair value of contingent consideration, restructuring and plant conversion expenses, and litigation settlement, for the prior twelve months. The calculated market capitalization is divided by the modified EBITDA to arrive at a valuation multiple. The fair value of each reporting unit is then calculated by taking the product of the valuation multiple and the trailing twelve months' modified EBITDA of that reporting unit. The fair value was then compared to the reporting units' book value and determined to be in excess of the book value. We believe that starting with the fair value of the company as a whole is a reasonable measure as that fair value is then allocated to each reporting unit based on that reporting unit's individual earnings. A sustained drop in our stock price would have a negative impact to our fair value calculations. A temporary drop in earnings of a reporting unit would have a negative impact to our fair value calculations.

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The results of our goodwill impairment test using the market approach corroborated the results of the impairment test under the income approach and indicated the fair value of our reporting units exceeded their respective book values by substantial amounts.

Other Intangible Assets:

As of September 30, 2015 and December 31, 2014, the values of other intangible assets were as follows:

In thousands
	September 30, 2015						December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	8,343	$	6,404	$	1,939	$	8,474	$	5,688	$	2,786
Customer relationships	783,615		128,178		655,437		755,148		107,365		647,783
Tradenames	4,257		1,004		3,253		6,062		1,313		4,749
Technology	611		601		10		611		521		90
Other	501		64		437		539		35		504
Indefinite lived intangibles:
Operating permits	238,517		—		238,517		247,933		—		247,933
Tradenames	9,910		—		9,910		5,800		—		5,800
Total	$	1,045,754	$	136,251	$	909,503	$	1,024,567	$	114,922	$	909,645

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:

In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	70,282
Impairments during the year	(2,414		)
Amortization during the year	(26,957		)
Changes due to foreign currency fluctuations	(41,053		)
Balance at September 30, 2015	$	909,503

During the quarter ended March 31, 2015 we wrote off $0.2 million in customer relationships, $1.2 million in operating permits, and $1.0 million in tradenames, due to rationalizing certain of our domestic and international operations (see Note 13 - Restructuring Charges). These expenses are reflected as part of SG&A on our Condensed Consolidated Statements of Income. Under generally accepted accounting principles, a fair value must be assigned to all acquired assets based on a theoretical "market participant" regardless of the acquirer's intended use for those assets. This accounting treatment can lead to the recognition of losses when a company disposes of acquired assets. We complete our annual impairment analysis of our indefinite lived intangibles during the quarter ended December 31 of each year, or more frequently, if circumstances indicate that they may be impaired.

Our finite-lived intangible assets are amortized over their useful lives. We have determined that our customer relationships have useful lives from 10 to 40 years based upon the type of customer, with a weighted

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average remaining useful life of 23.2 years. We have covenants not-to-compete intangibles with useful lives from 3 to 14 years, with a weighted average remaining useful life of 5.3 years. We have tradename intangibles with useful lives from 10 to 40 years, with a weighted average remaining useful life of 16.4 years. We have determined that our permits have indefinite lives due to our ability to renew these permits with minimal additional cost, and therefore these are not amortized.

During the quarters ended September 30, 2015 and 2014, the aggregate amortization expense was $9.2 million and $8.5 million, respectively. For the nine months ended September 30, 2015 and 2014, the aggregate amortization expense was $27.0 million and $24.2 million, respectively.

The estimated amortization expense for each of the next five years, assuming no additional amortizable intangible assets, is as follows for the years ended December 31:

In thousands
2015	$	35,839
2016	35,547
2017	35,422
2018	35,384
2019	35,363

Future amortization expense may fluctuate depending on changes in foreign currency rates, future acquisitions, or changes to the estimated amortizable life of the intangibles. The estimates for amortization expense noted above are based upon foreign exchange rates as of September 30, 2015.

NOTE 10 – ENVIRONMENTAL REMEDIATION LIABILITIES

We record a liability for environmental remediation when such liability becomes probable and the costs or damages can be reasonably estimated. We accrue environmental remediation costs, on an undiscounted basis, associated with identified sites where an assessment has indicated that cleanup costs are probable and can be reasonably estimated, but the timing of such payments is not fixed and determinable. Such accruals are based on currently available information, estimated timing of remedial actions, existing technology, and enacted laws and regulations. The liability for environmental remediation is included in the Condensed Consolidated Balance Sheets in current liabilities within "Accrued liabilities" and in non-current liabilities within "Other liabilities."

At September 30, 2015, the total environmental remediation liabilities recorded were $32.0 million, of which $2.8 million was classified as accrued liabilities and $29.2 million was classified as other liabilities.

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NOTE 11 – DEBT

Long-term debt consisted of the following:

In thousands
	September 30, 2015		December 31, 2014
Obligations under capital leases	$	8,390	$	9,185
$1.2 billion senior credit facility weighted average rate 1.51%, due in 2019	176,387		459,975
$1.5 billion term loan facility, due in 2020	—		—
$100 million private placement notes 5.64%, due in 2015	—		100,000
$175 million private placement notes 3.89%, due in 2017	175,000		175,000
$125 million private placement notes 2.68%, due in 2019	125,000		125,000
$225 million private placement notes 4.47%, due in 2020	225,000		225,000
$125 million private placement notes 3.26%, due in 2022	125,000		125,000
$200 million private placement notes 2.72%, due in 2022	200,000		—
$100 million private placement notes 2.79%, due in 2023	100,000		—
Promissory notes and deferred consideration weighted average rate of 3.74% and weighted average maturity of 3.5 years	271,568		279,590
Foreign bank debt weighted average rate 9.20% and weighted average maturity of 2.3 years	109,747		160,465
Total debt	1,516,092		1,659,215
Less: current portion of total debt	106,405		131,969
Long-term portion of total debt	$	1,409,687	$	1,527,246

Our $1.2 billion senior credit facility maturing in June 2019, our $175.0 million private placement notes maturing in October 2017, our $125.0 million private placement notes maturing in December 2019, our $225.0 million private placement notes maturing in October 2020, our $125.0 million private placement notes maturing in December 2022, our $200.0 million private placement notes maturing July 2022, and our $100.0 million private placement notes maturing in July 2023 all require us to comply with various financial, reporting and other covenants and restrictions, including a restriction on dividend payments. The financial debt covenants are the same for the senior credit facility and the private placement notes. At September 30, 2015, we were in compliance with all of our financial debt covenants.

As of September 30, 2015 and December 31, 2014, we had $149.2 million and $162.9 million, respectively, committed to outstanding letters of credit under our senior credit facility. The unused portion of the revolving credit facility as of September 30, 2015 and December 31, 2014 was $874.4 million and $577.1 million, respectively.

We repaid our $100.0 million private placement notes that matured in April 2015 by borrowing from our long-term senior credit facility.

On April 30, 2015, we entered into a note purchase agreement with several institutional purchasers pursuant to which we have issued and sold to the purchasers $200.0 million of our new seven-year 2.72% unsecured senior notes ("Series A") and $100.0 million of our new eight-year 2.79% unsecured senior notes ("Series B"). Closing of the issuance and sale of the notes occurred on July 31, 2015.

The Series A notes bear interest at the fixed rate of 2.72% per annum, and the Series B notes bear interest at the fixed rate of 2.79% per annum. Interest will be payable in arrears semi-annually on January 1 and July 1 beginning on January 1, 2016. The principal of the Series A notes will be payable at the maturity of the notes on July 1, 2022, and the principal of the Series B notes will be payable at the maturity of the notes on July 1, 2023. The notes are unsecured obligations.

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The Company entered into a Term Loan Credit Agreement dated as of August 21, 2015 (the “Term Loan Credit Agreement”) with Bank of America, N.A., as the Administrative Agent maturing on August 21, 2020. The Term Loan Credit Agreement provides for a term loan facility (“Term Loan Facility”) under which the Company may obtain loans up to an aggregate amount of $1.5 billion.

Borrowings under the Term Loan Facility may bear interest at a Base Rate or Eurodollar Rate, respectively, plus the Applicable Rate. The Base Rate is for any day a fluctuating rate per annum equal to the highest of (i) the Federal Funds Rate plus 1/2 of 1.00%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Bank of America as its “prime rate” and (iii) the Eurodollar Rate plus 1.00%. The Eurodollar Rate is a rate per annum determined for the applicable interest period by reference to the London interbank offered rate. The Applicable Rate for any Base Rate Loans is between 0 and 100 basis points per annum, and the Applicable Rate for any Eurodollar Rate Loan is between 100 and 200 basis points per annum, in each case depending on the consolidated leverage ratio for the Company and its subsidiaries as set forth in the most recent compliance certificate received by the administrative agent.

NOTE 12 – GEOGRAPHIC INFORMATION

Management has determined that we have two reportable segments: United States and International. Revenues are attributed to countries based on the location of customers. The same accounting principles and critical accounting policies are used in the preparation of the financial statements for both reportable segments.

We have retroactively reclassified immaterial amounts related to Puerto Rico from the United States segment to the International segment.

Detailed information for our United States reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Regulated and compliance solutions revenues	$	493,234	$	452,106	$	1,435,407	$	1,246,381
Recall and returns solutions revenues	30,274		16,610		78,531		64,395
Total revenues	523,508		468,716		1,513,938		1,310,776
Net interest expense	11,110		11,538		32,254		33,804
Income before income taxes	78,200		108,575		261,005		326,215
Income taxes	27,924		34,243		96,395		114,902
Net income attributable to Stericycle, Inc.	$	50,276	$	74,332	$	164,610	$	211,313
Depreciation and amortization	$	16,905	$	16,822	$	49,400	$	45,354

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Detailed information for our International reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015			2014
Regulated and compliance solutions revenues	$	195,088	$	199,161	$	583,666		$	567,878
Net interest expense	6,268		5,079		20,112			14,079
Income before income taxes	2,924		13,867		19,746			41,906
Income taxes	480		5,158		(5,070		)	7,731
Net income	2,444		8,709		24,816			34,175
Less: net income attributable to noncontrolling interests	457		196		1,256			1,558
Net income attributable to Stericycle, Inc.	$	1,987	$	8,513	$	23,560		$	32,617
Depreciation and amortization	$	10,585	$	11,943	$	33,033		$	34,248

NOTE 13 – RESTRUCTURING CHARGES

During the first quarter of 2015, management began executing a realignment of our operations to reduce labor redundancies and facility costs. As part of this realignment, the Company recorded charges related to severance, fixed asset impairments, write-off of intangible assets, and recognition of lease expense for properties no longer used but for which we have a contractual obligation. The recorded restructuring liabilities are expected to be paid primarily within the current year. While the Company believes the recorded restructuring liabilities are adequate, revisions to current estimates may be recorded in future periods based on new information as it becomes available. There could be additional initiatives in the future to further streamline our operations. As such, the Company expects further expenses related to workforce reductions and other facility rationalization costs when those restructuring plans are finalized and related expenses are estimable.

The following table below highlights $2.2 million and $16.5 million of pre-tax restructuring charges by reporting segment for the three- and nine-months ended September 30, 2015, respectively, which are reflected as part of SG&A on our Condensed Consolidated Statements of Income.

In thousands
	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	United States		International			Total Charges to Income			United States		International		Total Charges to Income
Employee severance and related costs	$	946	$	759		$	1,705		$	3,348	$	3,859	$	7,207
Other costs	351		309			660			2,141		1,183		3,324
Non-cash items:
Fixed assets impairment	—		—			—			3,133		—		3,133
Intangible assets impairment	—		—			—			2,167		247		2,414
Other	—		(183		)	(183		)	—		445		445
Total pre-tax restructuring expenses	$	1,297	$	885		$	2,182		$	10,789	$	5,734	$	16,523

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The following table summarizes restructuring activity during 2015 which is reflected in the Condensed Consolidated Balance Sheets as part of "Accrued liabilities":

In thousands
	Employee Severance and Related Costs			Other Costs			Total
Liability balance at January 1, 2015	$	—		$	—		$	—
Charges to income	7,207			3,324			10,531
Payments	(5,589		)	(1,544		)	(7,133		)
Other	(69		)	—			(69		)
Liability balance at September 30, 2015	$	1,549		$	1,780		$	3,329

NOTE 14 – LEGAL PROCEEDINGS

We operate in a highly regulated industry and must deal with regulatory inquiries or investigations from time to time that may be instituted for a variety of reasons. We are also involved in a variety of civil litigation from time to time.

We review all of our outstanding legal proceedings with counsel quarterly, and we will disclose an estimate of any reasonably possible loss or range of reasonably possible losses if and when we are able to make such an estimate and the reasonably possible loss or range of reasonably possible losses is material to our financial statements.

Qui Tam Action. As disclosed in our current report on Form 8-K filed on October 14, 2015, we entered into a settlement agreement on October 8, 2015 to resolve all claims made against us in the previously-disclosed qui tam (or “whistle blower”)action pending in the United States District Court for the Northern District of Illinois captioned United States of America ex rel. Jennifer D. Perez v. Stericycle, Inc., Case No. 1:08-cv-2390 (the “Qui Tam Action”). Originally filed under seal on April 28, 2008 by a former employee of ours (“Relator”) on behalf of the federal government, the Qui Tam Action was amended on June 28, 2010 to add the States of California, Delaware, Florida, Illinois, Indiana, Nevada, New Hampshire, New Jersey, New York, North Carolina, Rhode Island, Tennessee, the Commonwealths of Massachusetts and Virginia, and the District of Columbia (except for New Hampshire and New York, the “Government Entities”). The Qui Tam Action was further amended on July 23, 2013 to allege certain claims on behalf of the Government Entities and to drop any claims on behalf of the State of New Hampshire. The State of New York pursued its own investigation under the New York False Claims Act resulting in our settlement announced by the New York Attorney General’s office on January 8, 2013. Brought under the federal False Claims Act and comparable state statutes, the Qui Tam Action alleged that, from January 1, 2003 to June 30, 2014, we improperly increased our service price to certain government customers without their consent or contractual authorization. We have denied all liability for the claims made in the Qui Tam Action but have agreed to settle to avoid the expense, burden and inherent risk and uncertainty of litigation.

Under the terms of the settlement agreement entered into with Relator (the “Settlement”), we paid (i) $26.75 million to a third-party administrator to be allocated among the Government Entities as determined by the Government Entities themselves without any involvement by us and (ii) $1.75 million in full satisfaction of any claims by Relator and Relator’s counsel for attorneys’ fees, expenses and costs. We did not admit in the Settlement to any of the allegations in the Qui Tam Action, and the Settlement cannot be used as an admission of wrongdoing or liability on our part. In addition, we are completely released from any and all claims brought by Relator and the Government Entities.

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In view of the status of negotiations underlying the pending Settlement, we recorded a pre-tax accrual of $28.5 million in accrued liabilities on our consolidated balance sheet as of September 30, 2015 and a pre-tax charge of $28.5 million in selling, general and administrative expenses on our consolidated statement of income for the three months ended September 30, 2015. We made the payments described above on October 21, 2015 in accordance with the terms of the settlement agreement.

Class Action Lawsuits. As we have previously disclosed, we were served on March 12, 2013 with a class action complaint filed in the U.S. District Court for the Western District of Pennsylvania by an individual plaintiff for itself and on behalf of all other “similarly situated” customers of ours. The complaint alleges, among other things, that we imposed unauthorized or excessive price increases and other charges on our customers in breach of our contracts and in violation of the Illinois Consumer Fraud and Deceptive Business Practices Act. The complaint sought certification of the lawsuit as a class action and the award to class members of appropriate damages and injunctive relief.

The Pennsylvania class action complaint was filed in the wake of a settlement with the State of New York of an investigation under the New York False Claims Act which arose out of the Qui Tam Action described above.

Following the filing of the Pennsylvania class action complaint, we were served with class action complaints filed in federal court in California, Florida, Illinois, Mississippi and Utah and in state court in California. These complaints asserted claims and allegations substantially similar to those made in the Pennsylvania class action complaint. All of these cases appear to be follow-on litigation to our settlement with the State of New York. On August 9, 2013, the Judicial Panel on Multidistrict Litigation (MDL) granted our Motion to Transfer these related actions to the Northern District of Illinois for centralized pretrial proceedings. On December 10, 2013, we filed our answer to the Amended Consolidated Class Action Complaint in the MDL action, generally denying the allegations therein. The MDL action is in the discovery stage.

We believe that we have operated in accordance with the terms of our customer contracts and that these complaints are without merit. We intend to vigorously defend ourselves against each of these lawsuits.

We have not accrued any amounts in respect of these class action lawsuits, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) the proceedings are at an early stage and (iii) in our judgment, there are no comparable proceedings against other defendants that might provide guidance in making estimates.

Junk Fax Lawsuit. As previously disclosed, on May 20, 2015, we entered into a settlement agreement to resolve all claims made against us and certain of our subsidiaries in Sawyer v. Stericycle, et al., Case No. 2015 CH 07190 (the “TCPA Action”), a class action complaint pending in the Circuit Court of Cook County, Illinois (the “Court”). The TCPA Action is the successor lawsuit to the class action complaint filed in the U.S. District Court for the Northern District of Illinois (Case 1:14-cv-02070) that we have previously disclosed and that was dismissed pursuant to the parties’ joint stipulation of dismissal. The TCPA Action alleges that from 2010 to 2014 we violated the Telephone Consumer Protection Act of 1991, as amended by the Junk Fax Prevention Act of 2005, by sending facsimile advertisements to plaintiffs or putative class members that either were unsolicited and/or did not contain a valid opt-out notice. We have denied all liability for the claims made in the TCPA Action but have agreed to settle to avoid the expense, burden and inherent risk and uncertainty of litigation.

Under the terms of the settlement agreement entered into with the two class representatives, we agreed to make available a fund of $45.0 million (the “Settlement Fund”) to pay class members who submit a valid

24

claim form within a 90-day period, to pay an incentive award to each of the class representatives, to pay attorneys’ fees and expenses to plaintiffs’ attorneys, and to pay fees and costs of a third-party settlement administrator (the “TCPA Settlement”). The plaintiffs’ attorneys sought attorneys’ fees of one-third of the Settlement Fund, plus out-of-pocket expenses, to be paid from the Settlement Fund. As part of the TCPA Settlement, we do not admit to any of the allegations in the TCPA Action and will be completely released from any claims related to faxes sent by us or on our behalf from March 25, 2010 through April 30, 2015.

In view of the TCPA Settlement, we recorded a pre-tax accrual of $45.0 million in accrued liabilities on our consolidated balance sheet and a pre-tax charge of $45.0 million in selling, general and administrative expenses on our consolidated statement of income during the second quarter of 2015. We made payments totaling approximately $15.2 million in respect of the incentive awards to each of the class representatives and the attorneys’ fees and expenses of plaintiffs’ attorneys during August 2015. Based on information provided by the third-party settlement administrator, we will pay a total of approximately $13.0 million in respect of valid claims submitted by class members within the claims period sometime during the fourth quarter of 2015. As a result, we will retain the balance of the Settlement Fund, or approximately $16.8 million, with no further obligation to make payments in respect of the TCPA Settlement. We have adjusted the accrual on our consolidated balance sheet as of September 30, 2015 and the charge on our consolidated statement of income for the three months ended September 30, 2015 accordingly. 

Environmental Matters. On April 22, 2014, we completed our acquisition of PSC Environmental Services, LLC (“PSC Environmental”) and consequently became subject to the legal proceedings in which PSC Environmental was a party on that date. PSC Environmental’s operations are regulated by federal, state and local laws enacted to regulate the discharge of materials into the environment, remediate contaminated soil and groundwater or otherwise protect the environment. As a result of this continuing regulation, PSC Environmental frequently becomes a party to legal or administrative proceedings involving various governmental authorities and other interested parties. The issues involved in these proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by PSC Environmental or by other parties to which either PSC Environmental or the prior owners of certain of its facilities shipped wastes.

From time to time, PSC Environmental may be subject to fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. We believe that the fines or other penalties that PSC Environmental may pay in connection with any pending regulatory proceedings of this nature will not, individually or in the aggregate, be material to our financial statements.

NOTE 15 – SUBSEQUENT EVENTS

The Company evaluated subsequent events through the date of filing this Quarterly Report on Form 10-Q.

As disclosed in our current report on Form 8-K filed on October 7, 2015, we completed our acquisition (the “Acquisition”) of Shred-it International ULC, an Alberta unlimited liability corporation (“SII”), Shred-it JV LP, an Ontario limited partnership (“Shred-it JV”), Boost GP Corp., an Ontario corporation (“Boost GP”), and Boost Holdings LP, an Ontario limited partnership (together with SII, Shred-it JV and Boost GP, “Shred-it”), on October 1, 2015 pursuant to the terms of a Securities Purchase Agreement dated as of July 15, 2015 (as amended, the “Purchase Agreement”) with the equity holders of Shred-it. Under the Purchase Agreement, we and certain of our subsidiaries acquired Shred-it for an aggregate purchase price of $2.3 billion , plus the total enterprise value of franchises acquired by Shred-it after July 15, 2015 of $12.7 million . The allocation of the purchase prices to acquired assets and liabilities is incomplete, pending finalization of asset valuations and completion accounts.

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As also disclosed in our current report on Form 8-K filed on October 7, 2015, we entered into a note purchase agreement with 25 institutional purchasers on October 1, 2015 pursuant to which we issued and sold to the purchasers $150.0 million of new six-year 2.89% unsecured senior notes and $150.0 million of new eight-year 3.18% unsecured senior notes (collectively, the “Notes”). The Notes bear interest on the unpaid principal thereof from October 1, 2015 at their respective stated rates of interest payable semiannually in arrears on the first (1^st) day of April and October in each year and at maturity, commencing on April 1, 2016. The Notes are unsecured obligations. We used the proceeds from the sale of the Notes to fund a portion of the purchase price paid under the Acquisition.

On October 1, 2015, we borrowed $1.3 billion under the Term Loan Facility described in our current report on Form 8-K filed on August 27, 2015 to fund a portion of the purchase price paid under the Acquisition (see Note 11- Debt for more information).

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

We are in the business of providing regulated and compliance solutions to healthcare and commercial businesses. This includes the collection and processing of specialized waste for disposal, and a variety of training, consulting, recall/return, communication, and compliance services. We were incorporated in 1989 and presently serve a diverse customer base of more than 615,000 customers throughout the United States, Argentina, Brazil, Canada, Chile, Ireland, Japan, Mexico, the Netherlands, Portugal, Romania, Republic of Korea, Spain, and the United Kingdom.

The regulated solutions we provide include: medical waste disposal, our Steri-Safe® medical waste and compliance program, our Clinical Services program, our Sharps Management Service featuring Bio Systems® reusable sharps containers, pharmaceutical waste disposal, and hazardous waste disposal. Our compliance solutions include: training, consulting, inbound/outbound communications, data reporting, and other regulatory compliance services. In addition to our regulated and compliance solutions, we offer regulated recall and returns management solutions which encompass a number of services for a variety of businesses, but consist primarily of managing the recall, withdrawal, or return of expired or recalled products and pharmaceuticals.

There were no material changes in the Company’s critical accounting policies since the filing of its 2014 Form 10-K. As discussed in the 2014 Form 10-K, the preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make certain estimates and assumptions that affect the amount of reported assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and revenues and expenses during the periods reported. Actual results may differ from those estimates.

Highlights of the three months ended September 30, 2015:

• revenues were $718.6 million, up $50.7 million or 7.6% from $667.9 million in the third quarter last year;

• third quarter gross profit as a percent of revenues was 41.7% for both the third quarter of 2015 and 2014;

• operating income was $100.3 million, down $39.3 million or 28.2% from $139.5 million in the third quarter last year;

• we incurred $61.9 million in pre-tax expenses related to acquisitions, integration expense related to acquisitions, restructuring and plant conversion expenses, and litigation expenses.

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THREE MONTHS ENDED SEPTEMBER 30, 2015 COMPARED TO

THREE MONTHS ENDED SEPTEMBER 30, 2014

The following summarizes the Company’s operations:

In thousands, except per share data
	Three Months Ended September 30,
	2015			2014
	$		%	$		%
Revenues	$	718,596	100.0	$	667,877	100.0
Cost of revenues	404,431		56.3	373,128		55.9
Depreciation - cost of revenues	14,003		1.9	15,235		2.3
Plant conversion expenses	487		0.1	845		0.1
Total cost of revenues	418,921		58.3	389,208		58.3
Gross profit	299,675		41.7	278,669		41.7
Selling, general and administrative expenses (exclusive of adjusting items shown below)	124,521		17.3	111,793		16.7
Acquisition expenses	33,674		4.7	3,472		0.5
Integration expenses	13,447		1.9	7,461		1.1
Restructuring and plant conversion expenses	2,234		0.3	1,535		0.2
Litigation expenses	12,056		1.7	1,342		0.2
Total SG&A expenses (exclusive of depreciation and amortization shown below)	185,932		25.9	125,603		18.8
Depreciation	4,248		0.6	5,033		0.8
Amortization	9,239		1.3	8,497		1.3
Income from operations	100,256		14.0	139,536		20.9
Net interest expense	17,378		2.4	16,617		2.5
Other expense, net	1,754		0.2	477		0.1
Income tax expense	28,404		4.0	39,401		5.9
Net income	52,720		7.3	83,041		12.4
Less: net income attributable to noncontrolling interests	457		0.1	196		0.0
Net income attributable to Stericycle, Inc.	52,263		7.3	82,845		12.4
Less: mandatory convertible preferred stock dividend	1,684		0.2	—		—
Net income attributable to Stericycle, Inc. common shareholders	$	50,579	7.0	$	82,845	12.4
Earnings per share- diluted	$	0.59		$	0.96

Revenues: Our revenues increased$50.7 million, or 7.6%, in the third quarter of 2015 to $718.6 million from $667.9 million in the same period in 2014.

Domestic revenues increased$54.8 million, or 11.7%, to $523.5 million from $468.7 million in the same period in 2014. Organic revenue growth for domestic small account customers increased by $18.3 million, or approximately 7%, driven by higher revenues from our Steri-Safe and regulated waste services for retailers. Organic revenue from domestic large account customers increased by $6.6 million, or approximately 4%, as we increased the total number of accounts and expanded our reusable sharps services and pharmaceutical waste disposal programs. Organic revenues for both small account customers and large account customers were negatively impacted by lower fuel surcharges as well as lower hazardous waste volume from our industrial customers. Organic revenues for recall and returns management services increased

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by $9.8 million in 2015. Organic revenues exclude revenue growth attributed to businesses acquired within the preceding twelve months. Revenues from domestic acquisitions closed within the preceding twelve months contributed $20.1 million to the increase in revenues in the third quarter of 2015.

International revenues decreased$4.1 million, or 2.0%, in the third quarter of 2015, to $195.1 million from $199.2 million in the same period in 2014. Organic growth, currency rate fluctuations and acquisitions impact the comparison of 2015 and 2014. Organic growth in the international segment contributed $15.7 million in revenues, or approximately 8%. Organic growth excludes the effect of foreign exchange and acquisitions and divestitures less than one year old. The effect of foreign exchange rates unfavorably impacted international revenues in 2015 by $33.0 million as foreign currencies declined against the U.S. dollar. Revenue from international acquisitions closed within the preceding twelve months contributed $13.2 million to the increase in revenues in the third quarter of 2015.

Cost of Revenues: Our cost of revenues increased$29.7 million, or 7.6%, in the third quarter of 2015 to $418.9 million from $389.2 million in the same period in 2014. As a percent of revenues our costs of revenues remained the same 58.3% during the third quarter of 2015 and during the same period in 2014. We incurred $0.5 million and $0.8 million in plant conversion expenses during the third quarters of 2015 and 2014, respectively.

In general, international gross profits are lower than domestic gross profits because international operations have fewer small account customers, which tend to provide higher gross profits. Historically, the international operations have had most of their revenues from large account customers, such as hospitals. As the international revenues increase, consolidated gross profits receive downward pressure due to this "business mix" shift, which may be offset by additional international small account market penetration, integration savings, and domestic business expansion.

Our domestic cost of revenues increased$30.5 million, or 12.1%, in the third quarter of 2015 to $282.8 million from $252.3 million in the same period in 2014 due to a proportional increase in revenues from acquisitions and internal growth. Domestic gross profit as a percent of revenues slightly decreased to 46.0% during the third quarter of 2015 from 46.1% in the same period in 2014. Improvements to gross margin in our organic business and from the continued integration of the prior year PCS Environmental acquisition were offset by higher operating costs related to the current and more stringent compliance requirements for medical waste incinerators under Title V. Additionally, less than anticipated revenues from our industrial customers which have a higher fixed cost structure further unfavorably impacted gross margins.

Our international cost of revenues decreased$0.8 million, or 0.6%, in the third quarter of 2015 to $136.1 million from $136.9 million in the same period in 2014 as a result of costs related to proportional decrease in revenues. International gross profit as a percent of revenues decreased to 30.3% during the third quarter of 2015 from 31.3% during the same period in 2014 due to a foreign exchange impact on a profitability mix and higher compensation costs in areas of high inflation.

Selling, General and Administrative Expenses exclusive of adjusting items, depreciation and amortization ("SG&A"): Our SG&A expenses increased$12.7 million, or 11.4%, in the third quarter of 2015 to $124.5 million from $111.8 million in the same period in 2014 to support our increase in revenues. As a percent of revenues, these costs increased to 17.3% in the third quarter of 2015 from 16.7% in the same period in 2014.

Domestically, third quarter SG&A expenses increased$11.5 million, or 15.1%, to $87.7 million from $76.2 million in the same period in 2014. As a percent of revenues, SG&A increased to 16.8% in the third quarter of 2015 from 16.3% in the same period in 2014 primarily related to higher professional fees and increased investments for growth.

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Internationally, third quarter SG&A expenses increased$1.2 million, or 3.4%, to $36.8 million from $35.6 million in the same period in 2014. As a percent of revenues, SG&A increased to 18.9% in the third quarter of 2015 from 17.9% in the same period in 2014 primarily related to compensation expenses.

Income from Operations: Income from operations decreased$39.3 million, or 28.2%, in the third quarter of 2015 to $100.3 million from $139.5 million in same period in 2014. Comparison of income from operations between the third quarter of 2015 and the same period of 2014 was affected by acquisition, integration, and other expenses (collectively the "Adjusting Items").

During the quarter ended September 30, 2015, we recognized $12.1 million in litigation expenses (mostly from $28.5 million settlement of Qui Tam Action, offset by $17.0 million reduction of settlement accrual of the Junk Fax Lawsuit, see Note 14 - Legal Proceedings in the Notes to the Condensed Consolidated Financial Statements), $33.7 million in acquisition expenses mostly related to our acquisition of Shred-it described in Note 15 - Subsequent Events in the Notes to the Condensed Consolidated Financial Statements, $13.4 million of expenses related to the integration of our acquisitions, $2.2 million in restructuring expenses described in Note 13 - Restructuring Charges in the Notes to the Condensed Consolidated Financial Statements, and $0.5 million in plant conversion expenses.

During the quarter ended September 30, 2014, we recognized $3.5 million in acquisition expenses, $7.5 million of expenses related to the integration of our acquisitions, $2.4 million in plant conversion expenses, and $1.3 million in litigation expenses.

Domestically, our income from operations decreased$29.9 million, or 24.9%, to $90.4 million in the third quarter of 2015 from $120.3 million in the same period in 2014.

Internationally, our income from operations decreased$9.3 million, or 48.4%, to $9.9 million in the third quarter of 2015 from $19.2 million in the same period in 2014.

Net Interest Expense: Net interest expense was at $17.4 million during the third quarter of 2015 and $16.6 million during the same period in 2014 due to new borrowings under the senior notes.

Income Tax Expense: Income tax expense decreased to $28.4 million in the third quarter of 2015 from $39.4 million in the same period in 2014. The reported tax rates for the quarters ended September 30, 2015 and 2014 were 35.0% and 32.2%, respectively. The increase in the current quarter tax rate is primarily related to the recognition of tax benefits in 2014.

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NINE MONTHS ENDED SEPTEMBER 30, 2015 COMPARED TO

NINE MONTHS ENDED SEPTEMBER 30, 2014

Highlights of the nine months ended September 30, 2015:

• revenues were $2.10 billion, up $219.0 million or 11.7% from $1.88 billion in the same period last year;

• gross profit as a percent of revenues decreased to 42.2% from 43.1% in 2014;

• operating income was $337.1 million, down $80.5 million or 19.3% from $417.6 million in the same period of last year;

• we incurred $147.7 million in pre-tax expenses related to acquisitions, integration expense related to acquisitions, restructuring and plant conversion expenses, litigation expenses, and a favorable change in fair value of contingent consideration;

• cash flow from operations was $293.3 million.

The following summarizes the Company’s operations:

In thousands, except per share data
	Nine Months Ended September 30,
	2015				2014
	$			%	$		%
Revenues	$	2,097,604		100.0	$	1,878,654	100.0
Cost of revenues	1,168,050			55.7	1,023,615		54.5
Depreciation - cost of revenues	42,723			2.0	43,063		2.3
Plant conversion expenses	1,001			0.0	2,534		0.1
Total cost of revenues	1,211,774			57.8	1,069,212		56.9
Gross profit	885,830			42.2	809,442		43.1
Selling, general and administrative expenses (exclusive of items shown below)	362,388			17.3	321,302		17.1
Acquisition expenses	39,956			1.9	10,672		0.6
Integration expenses	31,257			1.5	14,625		0.8
Change in fair value of contingent consideration	(640		)	0.0	3,953		0.2
Restructuring and plant conversion expenses	17,080			0.8	1,535		0.1
Litigation expenses	59,006			2.8	3,243		0.2
Total SG&A expenses (exclusive of depreciation and amortization shown below)	509,047			24.3	355,330		18.9
Depreciation	12,753			0.6	12,325		0.7
Amortization	26,957			1.3	24,214		1.3
Income from operations	337,073			16.1	417,573		22.2
Net interest expense	52,366			2.5	47,883		2.5
Other expense, net	3,956			0.2	1,569		0.1
Income tax expense	91,325			4.4	122,633		6.5
Net income	189,426			9.0	245,488		13.1
Less: net income attributable to noncontrolling interests	1,256			0.1	1,558		0.1
Net income attributable to Stericycle, Inc.	188,170			9.0	243,930		13.0
Less: mandatory convertible preferred stock dividend	1,684			0.1	—		—
Net Income Attributable to Stericycle, Inc. Common Shareholders	$	186,486		8.9	$	243,930	13.0
Earnings per share- diluted	$	2.16			$	2.83

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Revenues: Our revenues increased$219.0 million, or 11.7%, for the nine months ended September 30, 2015 to $2.10 billion from $1.88 billion in the same period in 2014.

Domestic revenues increased$203.2 million, or 15.5%, to $1.51 billion from $1.31 billion in the same period in 2014. Organic revenue growth for domestic small account customers increased by $53.8 million, or approximately 7.2%, driven by an increase in Steri-Safe revenues and regulated waste services for retailers. Organic revenue from domestic large account customers increased by $19.9 million, or approximately 4.3%, as we increased the total number of accounts and continue to expand our reusable sharps services and pharmaceutical waste disposal programs. Organic revenues for both small account customers and large account customers were negatively impacted by lower fuel surcharges as well as lower hazardous waste volume from our industrial customers. Organic revenues for recall and returns management services increased by $2.6 million in 2015 due. Organic revenues exclude revenue growth attributed to businesses acquired within the preceding twelve months. Revenues from domestic acquisitions closed within the preceding twelve months contributed approximately $126.9 million to the increase in revenues in 2015.

International revenues increased$15.8 million, or 2.8%, in 2015, to $583.7 million from $567.9 million in the same period in 2014. Organic growth, currency rate fluctuations and acquisitions impact the comparison of 2015 and 2014. Organic growth in the international segment contributed $47.5 million in revenues, or approximately 8.5%. Organic growth excludes the effect of foreign exchange and acquisitions and divestitures less than one year old. The effect of foreign exchange rates unfavorably impacted international revenues in 2015 by $83.3 million as foreign currencies declined against the U.S. dollar. Revenues from international acquisitions closed within the preceding twelve months contributed approximately $51.6 million to the increase in revenues in 2015.

Cost of Revenues: Our cost of revenues increased$142.6 million, or 13.3%, for the nine months ended September 30, 2015 to $1.21 billion from $1.07 billion in the same period in 2014. As a percent of revenues our costs of revenues increased 0.9% which resulted in consolidated gross profit of 42.2% during the nine months ended September 30, 2015, as compared to 43.1% during the same period in 2014. We incurred $1.0 million and $2.5 million in plant conversion expenses during the nine months ended September 30, 2015 and 2014, respectively.

In general, international gross profits are lower than domestic gross profits because the international operations have fewer small account customers, which tend to provide higher gross profits. Historically, the international operations have had most of their revenues from large account customers, such as hospitals. As the international revenues increase, consolidated gross profits receive downward pressure due to this “business mix” shift, which may be offset by additional international small account market penetration, integration savings, and domestic business expansion.

Our domestic cost of revenues increased$126.2 million, or 18.4%, in 2015 to $811.7 million from $685.5 million in the same period in 2014 due to a proportional increase in revenues from acquisitions and internal growth. Domestic gross profit as a percent of revenues decreased to 46.4% in 2015 from 47.7% in the same period in 2014 partially due to increased healthcare benefit expenses, and higher operating costs related to the current and more stringent compliance requirements for medical waste incinerators under Title V. Additionally, less than anticipated revenues from our industrial customers which have a higher fixed cost structure further unfavorably impacted gross margins.

Our international cost of revenues increased$16.4 million, or 4.3%, in the nine months ended September 30, 2015 to $400.1 million from $383.7 million in the same period in 2014 as a result of costs related to proportional increase in revenues from acquisitions and internal growth. International gross profit as a percent of revenues decreased to 31.5% in 2015 from 32.4% during the same period in 2014 due to a foreign exchange impact on a profitability mix and higher compensation costs in areas of high inflation.

31

SG&A Expenses exclusive of adjusting items, depreciation and amortization:Our SG&A expenses increased$41.1 million, or 12.8%, in the nine months ended September 30, 2015 to $362.4 million from $321.3 million in the same period in 2014 to support our increase in revenues. As a percent of revenues, these costs increased to 17.3% in 2015, as compared to 17.1% in the same period in 2014.

Domestically, 2015 SG&A expenses increased $30.9 million, or 14.1%, to $250.8 million from $219.9 million in the same period in 2014 primarily related to higher professional fees, increased healthcare benefit costs, and increased investments for growth. As a percent of revenues, SG&A decreased to 16.6% in 2015, as compared to 16.8% in the same period in 2014.

Internationally, 2015 SG&A expenses increased $10.2 million, or 10.1%, to $111.6 million from $101.4 million in the same period in 2014. As a percent of revenues, SG&A was at 19.1% in 2015, as compared to 17.9% in the same period in 2014 primarily related to compensation expenses in support of new business growth opportunities.

Income from Operations: Income from operations decreased$80.5 million, or 19.3%, for the nine months ended September 30, 2015 to $337.1 million from $417.6 million in same period in 2014. Comparison of income from operations between 2015 and the same period of 2014 was affected by Adjusting Items.

During the first quarter of 2015, management began executing a realignment of our operations to reduce labor redundancies and facility costs. As part of this realignment, the Company recorded charges related to severance, fixed asset impairments, write-off of intangible assets, and recognition of lease expense for properties no longer used but for which we have a contractual obligation.

During the nine months ended September 30, 2015, we recognized $59.0 million in litigation settlement expense (mostly from $28.5 million settlement of Qui Tam Action and the $28.0 million settlement of the Junk Fax Lawsuit described in Note 14 - Legal Proceedings in the Notes to the Condensed Consolidated Financial Statements, $40.0 million in acquisition expenses, $31.3 million of expenses related to the integration of our acquisitions, $16.5 million in restructuring expenses (see Note 13 - Restructuring Charges in the Notes to the Condensed Consolidated Financial Statements), $1.6 million in plant conversion expenses, partially offset by a $0.6 million favorable change in fair value of contingent consideration.

During the nine months ended September 30, 2014, we recognized $10.7 million in acquisition expenses, $14.6 million of expenses related to the integration of our acquisitions, $3.2 million in litigation settlement expense, $4.1 million in plant conversion expenses, and $4.0 million related to a change in fair value of contingent consideration.

Domestically, our income from operations decreased$64.6 million, or 17.9%, $296.5 million in 2015 from $361.1 million in the same period in 2014.

Internationally, our income from operations decreased$15.9 million, or 28.1%, $40.6 million in 2015 from $56.5 million in the same period in 2014.

Net Interest Expense: Net interest expense increased to $52.4 million during the nine months ended September 30, 2015 from $47.9 million during the same period in 2014. The increase in interest expense was due to new borrowings under senior notes and higher interest costs in Latin America.

Income Tax Expense: Income tax expense decreased to $91.3 million in the nine months ended September 30, 2015 from $122.6 million in the same period in 2014. The effective tax rates for the nine months ended September 30, 2015 and 2014 were 32.5% and 33.3%, respectively. The decrease in the current year tax rate, as compared to the corresponding period in the prior year and the statutory tax rate, is primarily related to a benefit from the recognition of tax deductible goodwill associated with entity mergers in Spain, Brazil, and Chile.

32

LIQUIDITY AND CAPITAL RESOURCES

At September 30, 2015, our $1.2 billion senior credit facility maturing in June 2019, our $175.0 million private placement notes maturing in October 2017, our $125.0 million private placement notes maturing in December 2019, our $225.0 million private placement notes maturing in October 2020, our $125.0 million private placement notes maturing in December 2022, our $200.0 million private placement notes maturing July 2022, and our $100.0 million private placement notes maturing in July 2023 all required us to comply with various financial, reporting and other covenants and restrictions, including a restriction on dividend payments. The financial debt covenants are the same for the senior credit facility and the private placement notes. At September 30, 2015, we were in compliance with all of our financial debt covenants.

As of September 30, 2015, we had $176.4 million of borrowings outstanding under our $1.2 billion senior unsecured credit facility, which includes foreign currency borrowings of $96.4 million. We also had $149.2 million committed to outstanding letters of credit under this facility. The unused portion of the revolving credit facility as of September 30, 2015 was $874.4 million. At September 30, 2015, our interest rates on borrowings under our revolving credit facility were as follows:

• A fee of 0.125% on our revolving credit facility

• For borrowings less than one month, the higher of the following

◦ Federal funds rate plus 0.5%

◦ Euro currency rate plus 1.0% or the prime rate

• For borrowings greater than one month: LIBOR plus 1.0%

The weighted average rate of interest on the unsecured revolving credit facility was 1.51% per annum, which includes the 0.125% facility fee at September 30, 2015.

Our $250.0 million term loan matured on July 1, 2015.

We repaid our $100.0 million private placement notes that matured in April 2015.

As of September 30, 2015, we had outstanding $175.0 million of seven-year 3.89% unsecured senior notes and $225.0 million of 10-year 4.47% unsecured senior notes issued to 39 institutional purchasers in a private placement completed in October 2010. Interest is payable in arrears semi-annually on April 15 and October 15 beginning on April 15, 2011, and principal is payable at the maturity of the notes, October 15, 2017 in the case of the seven-year notes and October 15, 2020 in the case of the 10-year notes.

As of September 30, 2015, we had outstanding $125.0 million of seven-year 2.68% unsecured senior notes and $125.0 million of 10-year 3.26% unsecured senior notes issued to 46 institutional purchasers in a private placement completed in December 2012. Interest is payable in arrears semi-annually on June 12 and December 12 beginning on June 12, 2013, and principal is payable at the maturity of the notes, December 12, 2019 in the case of the seven-year notes and December 12, 2022 in the case of the 10-year notes.

As of September 30, 2015, we had outstanding $200.0 million of seven-year 2.72% unsecured senior notes and $100.0 million of eight-year 2.79% unsecured senior notes issued to several institutional purchasers in a private placement completed in July 2015. Interest is payable in arrears semi-annually on January 1 and July 1 beginning on January 1, 2016, and principal is payable at the maturity of the notes, July 1, 2022 in the case of the seven-year notes and July 1, 2023 in the case of the eight-year notes.

As of September 30, 2015, we had $271.6 million in promissory notes issued in connection with acquisitions during 2008 through 2015, $109.7 million in foreign subsidiary bank debt outstanding, and $8.4 million in capital lease obligations.

33

Working Capital: At September 30, 2015, our working capital increased$666.8 million to $785.5 million, as compared to $118.7 million at December 31, 2014.

Current assets increased by $739.2 million, mainly driven by $636.2 million increase in short-term investments due to funds received from the issuance of mandatory convertible preferred stock which were invested in short-term money market funds until the funding of a portion of the Shred-it acquisition described in Note 15 - Subsequent Events in the Notes to the Condensed Consolidated Financial Statements. Accounts receivable increased by $59.0 million and days sales outstanding ("DSO") was calculated at 67 days at September 30, 2015 and 63 days at December 31, 2014. Deferred income taxes balance increased $22.8 million related to timing of deduction of our litigation settlements described in the Note 14 - Legal Proceedings in the Notes to the Condensed Consolidated Financial Statements.

Current liabilities increased by $72.4 million, primarily related to the Qui Tam Action and Junk Fax Lawsuit accruals (see Note 14 - Legal Proceedings in the Notes to the Condensed Consolidated Financial Statements), an increase in accounts payable, partially offset by a decrease in accrued income taxes related to the timing of the tax payments in the second quarter of 2015.

Net Cash Provided or Used: Net cash provided by operating activities decreased$51.7 million, or 15.0%, to $293.3 million during the nine months ended September 30, 2015, as compared to $345.0 million for the comparable period in 2014. Cash provided by operating activities as a ratio to net income was 155% and 141% for the nine months ended September 30, 2015 and 2014, respectively.

Net cash used in investing activities for the nine months ended September 30, 2015 was $805.6 million as compared to $397.1 million in the same period in 2014, a $408.5 million decrease, caused primarily by a $636.2 million increase in short-term investments described above in the working capital section. We used $231.7 million less in funds to acquire new businesses in 2015, as compared to the same period of 2014. Our capital expenditures, as a percent of revenues, were at 3.5% in both 2015 and 2014.

Net cash provided by financing activities was $523.5 million during the nine months ended September 30, 2015, as compared to $26.2 million of cash provided by financing activities in the same period in 2014. In September 2015, we completed a registered public offering of Series A Mandatory Convertible Preferred Stock for total gross proceeds of $770.0 million, or $746.9 million net of $23.1 million for underwriting discounts, commissions and expenses, see Note 7 - Equity in the Notes to the Condensed Consolidated Financial Statements. We used the net proceeds from this offering to fund a portion of the purchase price paid under our acquisition of Shred-it, see Note 15 - Subsequent Events in the Notes to the Condensed Consolidated Financial Statements. In 2015, we had $276.8 million net repayments on our senior credit facility, as compared to $175.0 million net borrowings in 2014 which we used to fund prior year acquisitions. We also repaid our $100.0 million private placement notes that matured in April 2015 and, in July 2015, we issued two unsecured senior notes issuance for total proceeds of $300.0 million.

We had share repurchases of $103.0 million in 2015, as compared to $157.0 million in 2014, a decrease of $54.0 million.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are subject to market risks arising from changes in interest rates. Our potential additional interest expense over one year that would result from a hypothetical, instantaneous and unfavorable change of 100 basis points in the interest rate on all of our variable rate obligations would be approximately $3.2 million on a pre-tax basis.

34

We have exposure to commodity pricing for gas and diesel fuel for our trucks and for the purchase of containers and boxes. We do not hedge these items to manage the exposure.

We have exposure to foreign currency fluctuations. We have subsidiaries in twelve foreign countries whose functional currency is the local currency. Our international subsidiaries use local currency denominated lines of credit for their funding needs which is has no exposure to currency fluctuations. We translate results of operations of our international operations using an average exchange rate. Changes in foreign currency exchange rates could unfavorably impact our consolidated results of operations.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our management, with the participation of our President and Chief Executive Officer and our Chief Financial Officer, conducted an evaluation of the effectiveness of our disclosure controls and procedures as of the end of the fiscal quarter covered by this Report. On the basis of this evaluation, our President and Chief Executive Officer and our Chief Financial Officer each concluded that our disclosure controls and procedures were effective.

The term "disclosure controls and procedures" is defined in Rule 13a-15(e) of the Securities Exchange Act of 1934 as "controls and other procedures designed to ensure that information required to be disclosed by the issuer in the reports, files or submits under the Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms." Our disclosure controls and procedures are designed to ensure that material information relating to us and our consolidated subsidiaries is accumulated and communicated to our management, including our President and Chief Executive Officer and our Executive Vice President and Chief Financial Officer, as appropriate to allow timely decisions regarding our required disclosures.

Internal Control Over Financial Reporting

The term internal control over financial reporting is defined as a process designed by, or under the supervision of, the issuers’ principal executive and principal financial officers, and effected by the issuer’s Board of Directors, management, and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. During the quarter ended September 30, 2015, there were no changes in our internal controls over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

FROM TIME TO TIME WE ISSUE FORWARD-LOOKING STATEMENTS RELATING TO SUCH THINGS AS ANTICIPATED FINANCIAL PERFORMANCE, BUSINESS PROSPECTS, ACQUISITION ACTIVITIES AND SIMILAR MATTERS.

THESE FORWARD-LOOKING STATEMENTS MAY INVOLVE RISKS AND UNCERTAINTIES, SOME OF WHICH ARE BEYOND OUR CONTROL (FOR EXAMPLE, GENERAL ECONOMIC CONDITIONS). OUR ACTUAL RESULTS COULD DIFFER SIGNIFICANTLY FROM THE RESULTS DESCRIBED IN THE FORWARD-LOOKING STATEMENTS. FACTORS THAT COULD CAUSE SUCH DIFFERENCES INCLUDE DIFFICULTIES IN COMPLETING THE INTEGRATION OF ACQUIRED BUSINESSES, CHANGES IN GOVERNMENTAL REGULATION OF MEDICAL WASTE

35

COLLECTION AND TREATMENT, AND INCREASES IN TRANSPORTATION AND OTHER OPERATING COSTS, AS WELL AS VARIOUS OTHER FACTORS.

36

PART II. – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

See Note 14 - Legal Proceedings in the Notes to the Condensed Consolidated Financial Statements (Item 1 of Part I).

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Under resolutions that our Board of Directors has adopted, we have been authorized to purchase a cumulative total of 24,621,640 shares of our common stock on the open market. As of September 30, 2015, we had purchased a cumulative total of $20,650,351 shares.

The following table provides information about our purchases of shares of our common stock during the nine months ended September 30, 2015:

Issuer Purchase of Equity Securities

Period	Total Number of Share (or Units) Purchased *	Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs
January 1 - January 31, 2015	—	$	—	—	4,735,185
February 1 - February 28, 2015	—	—		—	4,735,185
March 1 - March 31, 2015	100,713	136.74		100,713	4,634,472
April 1 - April 30, 2015	322,800	135.09		322,800	4,311,672
May 1 - May 31, 2015	131,367	133.26		131,367	4,180,305
June 1 - June 30, 2015	120,640	134.93		120,640	4,059,665
July 1 – July 31, 2015	—	—		—	4,059,665
August 1 – August 31, 2015	68,729	133.37		68,729	3,990,936
September 1 – September 30, 2015	19,647	137.52		19,647	3,971,289
Total	763,896	$	134.87	763,896	3,971,289

37

ITEM 6. EXHIBITS

31.1	Rules 13a-14(a)/15d-14(a) Certification of Charles A. Alutto, President and Chief Executive Officer
31.2	Rule 13a-14(a)/15d-14(a) Certification of Daniel V. Ginnetti, Executive Vice President and Chief Financial Officer
32	Section 1350 Certification of Charles A. Alutto, President and Chief Executive Officer, and Daniel V. Ginnetti, Executive Vice President and Chief Financial Officer

101.INS XBRL	Instance Document
101.SCH XBRL	Taxonomy Extension Schema Document
101.CAL XBRL	Taxonomy Extension Calculation Linkbase Document
101.DEF XBRL	Taxonomy Definition Linkbase Document
101.LAB XBRL	Taxonomy Extension Label Linkbase Document
101.PRE XBRL	Taxonomy Extension Presentation Linkbase Document

38

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated: November 9, 2015

STERICYCLE, INC.

(Registrant)

By: /s/ DANIEL V. GINNETTI

Daniel V. Ginnetti

Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

39

EX-31.1

Exhibit 31.1

Rule 13a-14(a)/15d-14(a) Certification

Charles A. Alutto

President and Chief Executive Officer

I, Charles A. Alutto, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Stericycle, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 9, 2015

/s/ CHARLES A. ALUTTO

Charles A. Alutto

President and Chief

Executive Officer

Stericycle, Inc.

EX-31.2

Exhibit 31.2

Rule 13a-14(a)/15d-14(a) Certification

Daniel V. Ginnetti

Executive Vice President and Chief Financial Officer

I, Daniel V. Ginnetti, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Stericycle, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 9, 2015

/s/ DANIEL V. GINNETTI

Daniel V. Ginnetti

Executive Vice President and

Chief Financial Officer

Stericycle, Inc.

EX-32

Exhibit 32

SECTION 1350 CERTIFICATION

In reference to this quarterly report on Form 10-Q of Stericycle, Inc. we, Charles A. Alutto, President and Chief Executive Officer of the registrant, and Daniel V. Ginnetti, an Executive Vice President and the Chief Financial Officer of the registrant, certify as follows, pursuant to 18 U.S.C. §1350 (as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002):

(a) the report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(b) the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the registrant.

Date: November 9, 2015

/s/ CHARLES A. ALUTTO

Charles A. Alutto

President and Chief

Executive Officer

Stericycle, Inc.

/s/ DANIEL V. GINNETTI

Daniel V. Ginnetti

Executive Vice President and

Chief Financial Officer

Stericycle, Inc.

XML

FAIR VALUE MEASUREMENTS - Changes to Contingent Consideration (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Business Combination, Contingent Consideration, Liability [Roll Forward]
Contingent consideration at December 31, 2014	$ 19,941
Increases due to acquisitions	12,945	$ 16,495
Decrease due to payments	(1,444)
Changes due to foreign currency fluctuations	(4,967)
Changes in fair value reflected in Selling, general, and administrative expenses	(640)	$ 3,953
Contingent consideration at September 30, 2015	$ 25,835

XML

GOODWILL AND OTHER INTANGIBLE ASSETS - Rollforward of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Finite-lived and Indefinite-lived Intangible Assets [Roll Forward]
Beginning of period			$ 909,645	$ 720,035	$ 720,035
Intangible assets acquired during the year			70,282		277,041
Impairments during the year			(2,414)		(9,863)
Amortization during the year	$ (9,239)	$ (8,497)	(26,957)	$ (24,214)	(32,692)
Changes due to foreign currency fluctuations			(41,053)		(44,876)
End of period	$ 909,503		$ 909,503		$ 909,645

XML

STOCK BASED COMPENSATION - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($) shares
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expenses related to non-vested option awards	$ 44.0
Weighted average period of recognition for unrecognized compensation expenses	3 years 11 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expenses related to RSUs	$ 4.2
Weighted average period of recognition for unrecognized compensation expenses	2 years 5 months 9 days
Ratio of share reserve related to RSUs granted | shares	2
Restricted Stock Units (RSUs) [Member] | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Restricted Stock Units (RSUs) [Member] | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years

XML

GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated Amortization Expense (Detail) $ in Thousands	Sep. 30, 2015 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$ 35,839
2016	35,547
2017	35,422
2018	35,384
2019	$ 35,363

XML

STOCK BASED COMPENSATION - Assumptions used in Black-Scholes Model (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock options granted (shares)	24,275	11,555	959,551	975,038
Weighted average fair value at grant date	$ 23.88	$ 21.32	$ 22.83	$ 21.30
Expected term (in years)	4 years 9 months 15 days	4 years 9 months 11 days	4 years 9 months 15 days	4 years 9 months
Expected volatility	16.01%	16.98%	16.56%	17.39%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Risk free interest rate	1.49%	1.59%	1.44%	1.52%

XML

RESTRUCTURING CHARGES (Tables)

9 Months Ended

Sep. 30, 2015

Restructuring and Related Activities [Abstract]

Restructuring Charges

The following table below highlights $2.2 million and $16.5 million of pre-tax restructuring charges by reporting segment for the three- and nine-months ended September 30, 2015, respectively, which are reflected as part of SG&A on our Condensed Consolidated Statements of Income.

In thousands
	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	United States		International			Total Charges to Income			United States		International		Total Charges to Income
Employee severance and related costs	$	946	$	759		$	1,705		$	3,348	$	3,859	$	7,207
Other costs	351		309			660			2,141		1,183		3,324
Non-cash items:
Fixed assets impairment	—		—			—			3,133		—		3,133
Intangible assets impairment	—		—			—			2,167		247		2,414
Other	—		(183		)	(183		)	—		445		445
Total pre-tax restructuring expenses	$	1,297	$	885		$	2,182		$	10,789	$	5,734	$	16,523

Restructuring Reserve

The following table summarizes restructuring activity during 2015 which is reflected in the Condensed Consolidated Balance Sheets as part of "Accrued liabilities":

In thousands
	Employee Severance and Related Costs			Other Costs			Total
Liability balance at January 1, 2015	$	—		$	—		$	—
Charges to income	7,207			3,324			10,531
Payments	(5,589		)	(1,544		)	(7,133		)
Other	(69		)	—			(69		)
Liability balance at September 30, 2015	$	1,549		$	1,780		$	3,329

XML

ENVIRONMENTAL REMEDIATION LIABILITIES (Details) $ in Millions	Sep. 30, 2015 USD ($)
Environmental Remediation Obligations [Abstract]
Environmental remediation liabilities	$ 32.0
Environmental remediation liabilities, classified as accrued liabilities	2.8
Environmental remediation liabilities, classified as other liabilities	$ 29.2

XML

ACQUISITIONS (Tables)

9 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

Summary of Location of Acquisitions

The following table summarizes the locations of our acquisitions for the nine months ended September 30, 2015:

Acquisition Locations	2015
United States	13
Brazil	2
Canada	1
Ireland	1
Mexico	2
Netherlands	1
Romania	4
Republic of Korea	6
Spain	3
Total	33

Aggregate Purchase Price Paid for Acquisitions and Other Adjustments to Consideration

The following table summarizes the aggregate purchase price paid for acquisitions and other adjustments of consideration to be paid for acquisitions during the nine months ended September 30:

In thousands
	Nine Months Ended September 30,
	2015		2014
Cash	$	97,098	$	328,811
Promissory notes	55,793		78,325
Deferred consideration	3,167		6,124
Contingent consideration	12,945		16,495
Total purchase price	$	169,003	$	429,755

Preliminary Purchase Price Allocation for Current Period Acquisitions and Other Adjustments to Purchase Price Allocations

The following table summarizes the preliminary purchase price allocation for current period acquisitions and other adjustments to purchase price allocations during the nine months ended September 30:

In thousands
	Nine Months Ended September 30,
	2015			2014
Fixed assets	$	13,635		$	127,621
Intangibles	70,282			242,792
Goodwill	85,393			202,391
Accounts receivable	22,475			56,696
Accounts payable	(10,637		)	(32,561		)
Net other liabilities	(4,875		)	(67,564		)
Debt	(4,803		)	(22,097		)
Net deferred tax liabilities	(2,467		)	(70,580		)
Noncontrolling interests	—			(6,943		)
Total purchase price allocation	$	169,003		$	429,755

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EQUITY - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	Sep. 15, 2015	Sep. 30, 2015	Sep. 30, 2014
Class of Stock [Line Items]
Net proceeds from issuance of preferred stock		$ 746,900	$ 0
Depositary Shares, Liquidation Preference Per Share	$ 100.00
Series A preferred stock
Class of Stock [Line Items]
Depositary shares (in shares)	7,700,000
Preferred stock, dividend rate	5.25%
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Issuance of preferred stock (in dollars per share)	$ 100.00
Gross proceeds from issuance of preferred stock	$ 770,000
Net proceeds from issuance of preferred stock	$ 746,900
Preferred stock, liquidation preference (in dollars per share)	$ 1,000
Series A preferred stock | Minimum
Class of Stock [Line Items]
Common stock issuable upon conversion (in shares)	5.8716
Series A preferred stock | Maximum
Class of Stock [Line Items]
Common stock issuable upon conversion (in shares)	7.3394

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STOCK BASED COMPENSATION - Expense Resulting from Stock Option Awards and ESPP (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 5,254	$ 4,241	$ 16,158	$ 13,365
Stock Options [Member] | Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	24	14	69	42
Stock Options [Member] | Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	4,416	3,600	13,795	11,459
Restricted Stock Units (RSUs) [Member] | Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	382	319	1,103	948
ESPP shares [Member] | Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 432	$ 308	$ 1,191	$ 916

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ACQUISITIONS - Additional Information (Detail) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2015 USD ($) Entity	Jun. 30, 2015 Entity	Mar. 31, 2015 Entity	Sep. 30, 2015 USD ($) Entity	Sep. 30, 2014 USD ($)
Business Acquisition [Line Items]
Number of acquisitions	10	8	15	33
Net increase in goodwill | $				$ 85.4
Tax deductible goodwill amount | $	$ 28.0			28.0
Net increase in Intangible Assets | $				70.3
Selling, general and administrative expenses
Business Acquisition [Line Items]
Acquisition related expenses | $				40.0	$ 10.7
Operating permits
Business Acquisition [Line Items]
Acquired indefinite-lived intangible assets | $				1.4
Tradenames
Business Acquisition [Line Items]
Acquired indefinite-lived intangible assets | $				4.2
Customer relationships
Business Acquisition [Line Items]
Acquired finite-lived intangible assets | $				$ 64.7
Customer relationships | Minimum
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, useful life				15 years
Customer relationships | Maximum
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, useful life				40 years
Brazil
Business Acquisition [Line Items]
Number of acquisitions				2
Canada
Business Acquisition [Line Items]
Number of acquisitions				1
Ireland
Business Acquisition [Line Items]
Number of acquisitions				1
Mexico
Business Acquisition [Line Items]
Number of acquisitions				2
Netherlands
Business Acquisition [Line Items]
Number of acquisitions				1
Romania
Business Acquisition [Line Items]
Number of acquisitions				4
Republic of Korea
Business Acquisition [Line Items]
Number of acquisitions				6
Spain
Business Acquisition [Line Items]
Number of acquisitions				3
United States
Business Acquisition [Line Items]
Net increase in goodwill | $				$ 56.6
United States | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions	2
United States | Communication Services
Business Acquisition [Line Items]
Number of acquisitions	1	1
Business acquisition, ownership percentage acquired	100.00%			100.00%
United States | Acquisition One | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions		1	1
Business acquisition, ownership percentage acquired		100.00%	100.00%
United States | Acquisition Two | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions		4	3
International
Business Acquisition [Line Items]
Net increase in goodwill | $				$ 28.8
International | Brazil | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions			2
Business acquisition, ownership percentage acquired			100.00%
International | Canada | Communication Services
Business Acquisition [Line Items]
Number of acquisitions		1
Business acquisition, ownership percentage acquired		100.00%
International | Ireland | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions			1
Business acquisition, ownership percentage acquired			100.00%
International | Mexico | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions			2
Business acquisition, ownership percentage acquired			100.00%
International | Netherlands | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions		1
Business acquisition, ownership percentage acquired		100.00%
International | Romania | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions			2
International | Romania | Acquisition One | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions	1
Business acquisition, ownership percentage acquired	100.00%			100.00%
International | Romania | Acquisition Two | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions	1
International | Republic of Korea | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions	3		3
International | Spain | Regulated and Compliance Solutions
Business Acquisition [Line Items]
Number of acquisitions	2		1

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GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Beginning Balance	$ 2,418,832	$ 2,231,582
Goodwill acquired during the year	100,319	258,017
Purchase accounting allocation adjustments	(14,926)	(22,420)
Goodwill other changes	(440)
Changes due to foreign currency fluctuations	(56,331)	(48,347)
Ending Balance	2,447,454	2,418,832
United States
Goodwill [Roll Forward]
Beginning Balance	1,836,402	1,673,810
Goodwill acquired during the year	71,119	169,754
Purchase accounting allocation adjustments	(14,514)	(4,825)
Goodwill other changes	0
Changes due to foreign currency fluctuations	(4,210)	(2,337)
Ending Balance	1,888,797	1,836,402
International
Goodwill [Roll Forward]
Beginning Balance	582,430	557,772
Goodwill acquired during the year	29,200	88,263
Purchase accounting allocation adjustments	(412)	(17,595)
Goodwill other changes	(440)
Changes due to foreign currency fluctuations	(52,121)	(46,010)
Ending Balance	$ 558,657	$ 582,430

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GEOGRAPHIC INFORMATION - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015 Segment
Segment Reporting [Abstract]
Number of reportable segments	2

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STOCK BASED COMPENSATION - Restricted Stock Units Activity (Detail) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares
Number of Units
Non-vested at beginning of year	63,600
Granted	10,624
Vested and released	0
Forfeited	(4,273)
Non-vested at September 30, 2015	69,951
Weighted Average Grant Date Fair Value Per Share
Non-vested at beginning of year | $ / shares	$ 96.04
Granted | $ / shares	130.40
Vested and released | $ / shares	0.00
Forfeited | $ / shares	101.20
Non-vested at September 30, 2015 | $ / shares	$ 100.94
Total Aggregate Intrinsic Value
Non-vested at September 30, 2015 | $	$ 9,745

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BASIS OF PRESENTATION

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations. However, the Company believes the disclosures included in the accompanying condensed consolidated financial statements are adequate to make the information presented not misleading. In our opinion, all adjustments necessary for a fair presentation for the periods presented have been reflected and are of a normal recurring nature. These condensed consolidated financial statements should be read in conjunction with the Stericycle, Inc. and Subsidiaries Consolidated Financial Statements and notes thereto for the year ended December 31, 2014, as filed with our Annual Report on Form 10-K for the year ended December 31, 2014. The results of operations for the nine months ended September 30, 2015 are not necessarily indicative of the results that may be achieved for the entire year ending December 31, 2015.

There were no material changes in the Company’s critical accounting policies since the filing of its 2014 Form 10-K. As discussed in the 2014 Form 10-K, the preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make certain estimates and assumptions that affect the amount of reported assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and revenues and expenses during the periods reported. Actual results may differ from those estimates.

We have evaluated subsequent events through the date of filing this quarterly report on Form 10-Q. No events have occurred that would require adjustment to or disclosure in the condensed consolidated financial statements.

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RESTRUCTURING CHARGES - Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Intangible assets impairment		$ 2,414	$ 9,863
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs	$ 1,705	7,207
Other costs	660	3,324
Fixed assets impairment	0	3,133
Intangible assets impairment	0	2,414
Other	(183)	445
Total pre-tax restructuring expenses	2,182	16,523
United States | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs	946	3,348
Other costs	351	2,141
Fixed assets impairment	0	3,133
Intangible assets impairment	0	2,167
Other	0	0
Total pre-tax restructuring expenses	1,297	10,789
International | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs	759	3,859
Other costs	309	1,183
Fixed assets impairment	0	0
Intangible assets impairment	0	247
Other	(183)	445
Total pre-tax restructuring expenses	$ 885	$ 5,734

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STOCK BASED COMPENSATION - Tax Benefits Related to Stock Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Tax benefit recognized in Statement of Income	$ 1,501	$ 1,319	$ 5,103	$ 3,248
Excess tax benefit of stock options exercised	$ 4,584	$ 3,667	$ 15,483	$ 10,747

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EARNINGS PER COMMON SHARE (Tables)

9 Months Ended

Sep. 30, 2015

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,
	2015			2014		2015			2014
Numerator:
Net income attributable to Stericycle, Inc.	$	52,263		$	82,845	$	188,170		$	243,930
Mandatory convertible preferred stock dividend (1)	(1,684		)	—		(1,684		)	—
Numerator for basic earnings per share attributable to Stericycle, Inc. common shareholders	$	50,579		$	82,845	$	186,486		$	243,930
Denominator:
Denominator for basic earnings per share-weighted average shares	84,884,599			84,858,360		84,960,955			84,940,975
Effect of diluted securities:
Employee stock options	1,235,716			1,258,095		1,273,904			1,296,227
Mandatory convertible preferred stock (2)	—			—		—			—
Denominator for diluted earnings per share-adjusted weighted average shares and after assumed exercises	86,120,315			86,116,455		86,234,859			86,237,202
Earnings per share – Basic	$	0.60		$	0.98	$	2.19		$	2.87
Earnings per share – Diluted	$	0.59		$	0.96	$	2.16		$	2.83

(1) Mandatory convertible preferred stock dividend - no dividend was declared or paid as of September 30, 2015.

(2) Weighted average common shares issuable upon the assumed conversion of the mandatory convertible preferred stock totaling 921,207 shares were excluded from the computation of diluted earnings per share as such conversion would have been antidilutive.

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EQUITY (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Repurchase of Shares of Common Stock

The following table provides information about our repurchase of shares of our common stock during the nine months ended September 30, 2015:

	Number of Shares Repurchased and Canceled	Amount for Repurchases		Average Price Paid per Share
		(in thousands)
Three months ended March 31, 2015	100,713	$	13,771	$	136.74
Three months ended June 30, 2015	574,807	77,390		134.64
Three months ended September 30, 2015	88,376	11,868		134.29
Nine months ended September 30, 2015	763,896	$	103,029	$	134.87
Three months ended March 31, 2014	685,990	$	78,340	$	114.20
Three months ended June 30, 2014	527,243	58,846		111.61
Three months ended September 30, 2014	198,728	23,173		116.60
Nine months ended September 30, 2014	1,411,961	$	160,359	$	113.57

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GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Detail) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) Segment	Sep. 30, 2015 USD ($) Segment	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Intangible Assets by Major Class [Line Items]
Number of geographical reportable segments | Segment					2
Number of reporting units | Segment				3
Goodwill	$ 2,447,454				$ 2,447,454		$ 2,418,832	$ 2,231,582
Aggregate amortization expense	$ 9,239		$ 8,497		$ 26,957	$ 24,214	32,692
Operating permits
Intangible Assets by Major Class [Line Items]
Write off of intangibles		$ 1,200
Customer relationships
Intangible Assets by Major Class [Line Items]
Write off of intangibles		200
Finite lived intangible assets, weighted average remaining useful life					23 years 2 months 16 days
Customer relationships | Minimum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					10 years
Customer relationships | Maximum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					40 years
Tradenames
Intangible Assets by Major Class [Line Items]
Write off of intangibles		$ 1,000
Finite lived intangible assets, weighted average remaining useful life					16 years 4 months 17 days
Tradenames | Minimum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					10 years
Tradenames | Maximum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					40 years
Covenants not-to-compete
Intangible Assets by Major Class [Line Items]
Finite lived intangible assets, weighted average remaining useful life					5 years 3 months 11 days
Covenants not-to-compete | Minimum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					3 years
Covenants not-to-compete | Maximum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life					14 years
Domestic Regulated and Compliance Services | Income Approach Goodwill Impairment Test
Intangible Assets by Major Class [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount				100.00%
Domestic Regulated Recall and Returns Management Services | Income Approach Goodwill Impairment Test
Intangible Assets by Major Class [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	100.00%				100.00%
International Regulated and Compliance Services
Intangible Assets by Major Class [Line Items]
Goodwill				$ 589,300
International Regulated and Compliance Services | Income Approach Goodwill Impairment Test
Intangible Assets by Major Class [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount				88.00%
International
Intangible Assets by Major Class [Line Items]
Goodwill	$ 558,657				$ 558,657		$ 582,430	$ 557,772
International | Puerto Rico | Goodwill
Intangible Assets by Major Class [Line Items]
Retroactive reclassification of goodwill					$ 4,300

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STOCK BASED COMPENSATION - Stock Option Activity (Detail) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares
Number of Options
Outstanding at beginning of year	5,377,857
Granted	959,551
Exercised	(791,434)
Forfeited	(138,249)
Canceled or expired	(1,876)
Outstanding at September 30, 2015	5,405,849
Exercisable at September 30, 2015	2,837,919
Vested and expected to vest at September 30, 2015	5,183,104
Weighted Average Exercise Price per Share
Outstanding at beginning of year | $ / shares	$ 80.88
Granted | $ / shares	131.20
Exercised | $ / shares	67.83
Forfeited | $ / shares	108.71
Canceled or expired | $ / shares	76.08
Outstanding at September 30, 2015 | $ / shares	91.02
Exercisable at September 30, 2015 | $ / shares	72.66
Vested and expected to vest at September 30, 2015 | $ / shares	$ 89.90
Weighted Average Remaining Contractual Life
Outstanding at September 30, 2015	5 years 10 months 21 days
Exercisable at September 30, 2015	4 years 11 months 12 days
Total Aggregate Intrinsic Value
Outstanding at September 30, 2015 | $	$ 261,110
Exercisable at September 30, 2015 | $	$ 189,143

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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill since January 1, 2014, by reportable segment, were as follows:

In thousands
	United States			International			Total
Balance as of January 1, 2014	$	1,673,810		$	557,772		$	2,231,582
Goodwill acquired during the year	169,754			88,263			258,017
Purchase accounting allocation adjustments	(4,825		)	(17,595		)	(22,420		)
Changes due to foreign currency fluctuations	(2,337		)	(46,010		)	(48,347		)
Balance as of December 31, 2014	1,836,402			582,430			2,418,832
Goodwill acquired during the year	71,119			29,200			100,319
Purchase accounting allocation adjustments	(14,514		)	(412		)	(14,926		)
Goodwill other changes	—			(440		)	(440		)
Changes due to foreign currency fluctuations	(4,210		)	(52,121		)	(56,331		)
Balance at September 30, 2015	$	1,888,797		$	558,657		$	2,447,454

Amortizable Intangibles

As of September 30, 2015 and December 31, 2014, the values of other intangible assets were as follows:

In thousands
	September 30, 2015						December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	8,343	$	6,404	$	1,939	$	8,474	$	5,688	$	2,786
Customer relationships	783,615		128,178		655,437		755,148		107,365		647,783
Tradenames	4,257		1,004		3,253		6,062		1,313		4,749
Technology	611		601		10		611		521		90
Other	501		64		437		539		35		504
Indefinite lived intangibles:
Operating permits	238,517		—		238,517		247,933		—		247,933
Tradenames	9,910		—		9,910		5,800		—		5,800
Total	$	1,045,754	$	136,251	$	909,503	$	1,024,567	$	114,922	$	909,645

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:

In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	70,282
Impairments during the year	(2,414		)
Amortization during the year	(26,957		)
Changes due to foreign currency fluctuations	(41,053		)
Balance at September 30, 2015	$	909,503

Indefinite Lived Intangibles

As of September 30, 2015 and December 31, 2014, the values of other intangible assets were as follows:

In thousands
	September 30, 2015						December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	8,343	$	6,404	$	1,939	$	8,474	$	5,688	$	2,786
Customer relationships	783,615		128,178		655,437		755,148		107,365		647,783
Tradenames	4,257		1,004		3,253		6,062		1,313		4,749
Technology	611		601		10		611		521		90
Other	501		64		437		539		35		504
Indefinite lived intangibles:
Operating permits	238,517		—		238,517		247,933		—		247,933
Tradenames	9,910		—		9,910		5,800		—		5,800
Total	$	1,045,754	$	136,251	$	909,503	$	1,024,567	$	114,922	$	909,645

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:

In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	70,282
Impairments during the year	(2,414		)
Amortization during the year	(26,957		)
Changes due to foreign currency fluctuations	(41,053		)
Balance at September 30, 2015	$	909,503

Estimated Amortization Expense

The estimated amortization expense for each of the next five years, assuming no additional amortizable intangible assets, is as follows for the years ended December 31:

In thousands
2015	$	35,839
2016	35,547
2017	35,422
2018	35,384
2019	35,363

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DEBT (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Long-Term Debt

Long-term debt consisted of the following:

In thousands
	September 30, 2015		December 31, 2014
Obligations under capital leases	$	8,390	$	9,185
$1.2 billion senior credit facility weighted average rate 1.51%, due in 2019	176,387		459,975
$1.5 billion term loan facility, due in 2020	—		—
$100 million private placement notes 5.64%, due in 2015	—		100,000
$175 million private placement notes 3.89%, due in 2017	175,000		175,000
$125 million private placement notes 2.68%, due in 2019	125,000		125,000
$225 million private placement notes 4.47%, due in 2020	225,000		225,000
$125 million private placement notes 3.26%, due in 2022	125,000		125,000
$200 million private placement notes 2.72%, due in 2022	200,000		—
$100 million private placement notes 2.79%, due in 2023	100,000		—
Promissory notes and deferred consideration weighted average rate of 3.74% and weighted average maturity of 3.5 years	271,568		279,590
Foreign bank debt weighted average rate 9.20% and weighted average maturity of 2.3 years	109,747		160,465
Total debt	1,516,092		1,659,215
Less: current portion of total debt	106,405		131,969
Long-term portion of total debt	$	1,409,687	$	1,527,246

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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Preferred Stock Series A preferred stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Beginning Balance (in shares) at Dec. 31, 2013		0	85,500,000
Beginning Balance at Dec. 31, 2013	$ 1,767,538	$ 0	$ 855	$ 195,110	$ 1,610,964	$ (56,468)	$ 17,077
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	328,146				326,456		1,690
Currency translation adjustment	(82,871)					(80,221)	(2,650)
Change in qualifying cash flow hedge, net of tax	(1,730)					(1,730)
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases (in shares)			1,061,000
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases	58,562		$ 11	$ 58,551
Purchase and cancellation of treasury stock (in shares)			(1,677,000)
Purchase and cancellation of treasury stock	(194,066)		$ (17)		(194,049)
Stock compensation expense	17,773			$ 17,773
Excess tax benefit of stock options exercised	17,906			17,906
Noncontrolling interests attributable to acquisitions	6,781						6,781
Reduction to noncontrolling interests due to additional ownership	(854)			(129)			(725)
Ending Balance (in shares) at Dec. 31, 2014		0	84,884,000
Ending Balance at Dec. 31, 2014	1,917,185	$ 0	$ 849	289,211	1,743,371	(138,419)	22,173
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	189,426				188,170		1,256
Currency translation adjustment	(95,155)					(95,291)	136
Change in qualifying cash flow hedge, net of tax	(3,536)					(3,536)
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases (in shares)			822,000
Issuance of common stock for exercise of options, restricted stock units and employee stock purchases	57,930		$ 7	57,923
Issuance of mandatory convertible preferred stock (in shares)		770,000
Issuance of mandatory convertible preferred stock	$ 746,900	$ 8		$ 746,892
Purchase and cancellation of treasury stock (in shares)	(763,896)		(764,000)
Purchase and cancellation of treasury stock	$ (103,029)		$ (7)		(103,022)
Preferred stock dividend	(1,684)				(1,684)
Stock compensation expense	16,158			$ 16,158
Excess tax benefit of stock options exercised	15,483			15,483
Reduction to noncontrolling interests due to additional ownership	(5,236)						(5,236)
Ending Balance (in shares) at Sep. 30, 2015		770,000	84,942,000
Ending Balance at Sep. 30, 2015	$ 2,734,442	$ 8	$ 849	$ 1,125,667	$ 1,826,835	$ (237,246)	$ 18,329

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GEOGRAPHIC INFORMATION (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Detailed Information for Reportable Segment

Detailed information for our United States reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Regulated and compliance solutions revenues	$	493,234	$	452,106	$	1,435,407	$	1,246,381
Recall and returns solutions revenues	30,274		16,610		78,531		64,395
Total revenues	523,508		468,716		1,513,938		1,310,776
Net interest expense	11,110		11,538		32,254		33,804
Income before income taxes	78,200		108,575		261,005		326,215
Income taxes	27,924		34,243		96,395		114,902
Net income attributable to Stericycle, Inc.	$	50,276	$	74,332	$	164,610	$	211,313
Depreciation and amortization	$	16,905	$	16,822	$	49,400	$	45,354

Detailed information for our International reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015			2014
Regulated and compliance solutions revenues	$	195,088	$	199,161	$	583,666		$	567,878
Net interest expense	6,268		5,079		20,112			14,079
Income before income taxes	2,924		13,867		19,746			41,906
Income taxes	480		5,158		(5,070		)	7,731
Net income	2,444		8,709		24,816			34,175
Less: net income attributable to noncontrolling interests	457		196		1,256			1,558
Net income attributable to Stericycle, Inc.	$	1,987	$	8,513	$	23,560		$	32,617
Depreciation and amortization	$	10,585	$	11,943	$	33,033		$	34,248

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FAIR VALUE MEASUREMENTS - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Payments to acquire short-term investments	$ 636,200
Derivative asset	1,111		$ 1,111		$ 1,111		$ 515
Cash received on settled hedge		$ 8,800			8,833	$ 0
Settlement of hedge, amount recognized in accumulated other comprehensive income		5,300	(216)	$ (159)	(3,994)	(308)
Settlement of hedge, tax amount recognized in accumulated other comprehensive income		$ 3,500	79	$ 0	2,577	$ 47
Contingent consideration liabilities	25,835		25,835		25,835		19,941
Debt obligations, carrying amount	1,516,092		1,516,092		1,516,092		1,659,215
Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maximum contingent liability if financial performance measures were fully met	45,200		45,200		45,200
Level 3 Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0		0		0		0
Contingent consideration liabilities	25,835		25,835		25,835		19,941
Level 3 Inputs [Member] | Current Liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent consideration liabilities	8,900		8,900		8,900
Level 2 Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	1,111		1,111		1,111		515
Contingent consideration liabilities	0		0		0		0
Debt obligations, fair value	$ 1,520,000		$ 1,520,000		$ 1,520,000		$ 1,670,000

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GOODWILL AND OTHER INTANGIBLE ASSETS - Values of Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 1,045,754	$ 1,024,567
Accumulated Amortization	136,251	114,922
Net Value	909,503	909,645	$ 720,035
Operating permits
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	238,517	247,933
Net Value	238,517	247,933
Tradenames
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	9,910	5,800
Net Value	9,910	5,800
Covenants not-to-compete
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	8,343	8,474
Accumulated Amortization	6,404	5,688
Net Value	1,939	2,786
Customer relationships
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	783,615	755,148
Accumulated Amortization	128,178	107,365
Net Value	655,437	647,783
Tradenames
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	4,257	6,062
Accumulated Amortization	1,004	1,313
Net Value	3,253	4,749
Technology
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	611	611
Accumulated Amortization	601	521
Net Value	10	90
Other
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	501	539
Accumulated Amortization	64	35
Net Value	$ 437	$ 504

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 32,883	$ 22,236
Short-term investments	636,288	380
Accounts receivable, less allowance for doubtful accounts of $19,896 in 2015 and $19,083 in 2014	524,503	465,473
Deferred income taxes	51,094	28,322
Prepaid expenses	34,197	30,632
Other current assets	40,500	33,173
Total Current Assets	1,319,465	580,216
Property, plant and equipment, less accumulated depreciation of $402,113 in 2015 and $364,124 in 2014	464,898	460,408
Goodwill	2,447,454	2,418,832
Intangible assets, less accumulated amortization of $136,251 in 2015 and $114,922 in 2014	909,503	909,645
Other assets	35,137	32,621
Total Assets	5,176,457	4,401,722
Current Liabilities:
Current portion of long-term debt	106,405	131,969
Accounts payable	150,213	114,596
Accrued liabilities	192,506	131,743
Deferred revenues	18,223	21,624
Other current liabilities	66,587	61,599
Total Current Liabilities	533,934	461,531
Long-term debt, net of current portion	1,409,687	1,527,246
Deferred income taxes	430,203	431,643
Other liabilities	68,191	64,117
Equity:
Common stock (par value $0.01 per share, 120,000,000 shares authorized, 84,942,134 issued and outstanding in 2015 and 84,883,517 issued and outstanding in 2014)	849	849
Additional paid-in capital	1,125,667	289,211
Accumulated other comprehensive loss	(237,246)	(138,419)
Retained earnings	1,826,835	1,743,371
Total Stericycle, Inc.’s Equity	2,716,113	1,895,012
Noncontrolling interest	18,329	22,173
Total Equity	2,734,442	1,917,185
Total Liabilities and Equity	5,176,457	4,401,722
Series A preferred stock
Equity:
Mandatory convertible preferred stock, Series A (par value $0.01 per share, 1,000,000 shares authorized, 770,000 issued and outstanding in 2015)	$ 8	$ 0

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STOCK BASED COMPENSATION - Intrinsic Value of Options Exercised (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total intrinsic value of options exercised	$ 14,888	$ 14,375	$ 54,538	$ 40,893

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Amortization of cash flow hedge into income, tax	$ 176	$ 55	$ 284	$ 155
Change in fair value of cash flow hedge, tax	$ 79	$ 0	$ 2,577	$ 47

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DEBT - Additional Information (Detail) - USD ($)			1 Months Ended
	Aug. 21, 2015	Apr. 30, 2015	Apr. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
$1.2 billion senior credit facility weighted average rate 1.51%, due in 2019
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility				$ 1,200,000,000.0
Revolving credit facility, amount committed to outstanding letters of credit				149,200,000	$ 162,900,000
Revolving credit facility, unused portion				874,400,000	$ 577,100,000
$100 million private placement notes 5.64%, due in 2015 | Long-term Debt [Member]
Debt Instrument [Line Items]
Repayments of Debt			$ 100,000,000
$175 million private placement notes 3.89%, due in 2017
Debt Instrument [Line Items]
Long-term debt, face amount				$ 175,000,000.0
Stated interest rate				3.89%
$125 million private placement notes 2.68%, due in 2019
Debt Instrument [Line Items]
Long-term debt, face amount				$ 125,000,000.0
Stated interest rate				2.68%
$225 million private placement notes 4.47%, due in 2020
Debt Instrument [Line Items]
Long-term debt, face amount				$ 225,000,000.0
Stated interest rate				4.47%
$125 million private placement notes 3.26%, due in 2022
Debt Instrument [Line Items]
Long-term debt, face amount				$ 125,000,000.0
Stated interest rate				3.26%
$200 million private placement notes 2.72%, due in 2022
Debt Instrument [Line Items]
Long-term debt, face amount				$ 200,000,000
Stated interest rate				2.72%
$100 million private placement notes 2.79%, due in 2023
Debt Instrument [Line Items]
Long-term debt, face amount				$ 100,000,000
Stated interest rate				2.79%
Senior Notes | Senior Notes 2.67% Series A
Debt Instrument [Line Items]
Long-term debt, face amount		$ 200,000,000	$ 200,000,000
Debt instrument, term		7 years
Stated interest rate		2.72%	2.72%
Senior Notes | Senior Notes 2.74% Series B
Debt Instrument [Line Items]
Long-term debt, face amount		$ 100,000,000	$ 100,000,000
Debt instrument, term		8 years
Stated interest rate		2.79%	2.79%
$1.5 billion term loan facility, due in 2020
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility				$ 1,500,000,000.0
$1.5 billion term loan facility, due in 2020 | Federal Funds Rate
Debt Instrument [Line Items]
Spread on variable rate	0.50%
$1.5 billion term loan facility, due in 2020 | Eurodollar Rate
Debt Instrument [Line Items]
Spread on variable rate	1.00%
Minimum | $1.5 billion term loan facility, due in 2020 | Eurodollar Rate
Debt Instrument [Line Items]
Spread on variable rate	1.00%
Minimum | $1.5 billion term loan facility, due in 2020 | Base Rate
Debt Instrument [Line Items]
Spread on variable rate	0.00%
Maximum | $1.5 billion term loan facility, due in 2020 | Eurodollar Rate
Debt Instrument [Line Items]
Spread on variable rate	2.00%
Maximum | $1.5 billion term loan facility, due in 2020 | Base Rate
Debt Instrument [Line Items]
Spread on variable rate	1.00%

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ACQUISITIONS - Aggregate Purchase Price Paid for Acquisitions and Other Adjustments to Consideration (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Business Combinations [Abstract]
Cash	$ 97,098	$ 328,811
Promissory notes	55,793	78,325
Deferred consideration	3,167	6,124
Contingent consideration	12,945	16,495
Total purchase price	$ 169,003	$ 429,755

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LEGAL PROCEEDINGS (Details) - Settled litigation - USD ($) $ in Thousands			1 Months Ended	3 Months Ended
	Oct. 08, 2015	May. 21, 2015	Aug. 31, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015
Qui Tam Action | Selling, general and administrative expenses
Loss Contingencies [Line Items]
Settlement, pre-tax (charge) credit					$ (28,500)
Qui Tam Action | Accrued liabilities
Loss Contingencies [Line Items]
Settlement, pre-tax accrual					28,500
Junk Fax Lawsuit
Loss Contingencies [Line Items]
Settlement, amount		$ 45,000
Settlement, pre-tax (charge) credit					$ 16,800
Period during which class members may submit valid claim form		90 days
Settlement payments			$ 15,200
Junk Fax Lawsuit | Scenario, Forecast
Loss Contingencies [Line Items]
Settlement payments				$ 13,000
Junk Fax Lawsuit | Selling, general and administrative expenses
Loss Contingencies [Line Items]
Settlement, pre-tax (charge) credit						$ (45,000)
Junk Fax Lawsuit | Accrued liabilities
Loss Contingencies [Line Items]
Settlement, pre-tax accrual						$ 45,000
Subsequent Event | Qui Tam Action, Government Entities
Loss Contingencies [Line Items]
Settlement, amount	$ 26,750
Subsequent Event | Qui Tam Action, Relator
Loss Contingencies [Line Items]
Settlement, amount	$ 1,750

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LEGAL PROCEEDINGS

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

LEGAL PROCEEDINGS

LEGAL PROCEEDINGS

We operate in a highly regulated industry and must deal with regulatory inquiries or investigations from time to time that may be instituted for a variety of reasons. We are also involved in a variety of civil litigation from time to time.

We review all of our outstanding legal proceedings with counsel quarterly, and we will disclose an estimate of any reasonably possible loss or range of reasonably possible losses if and when we are able to make such an estimate and the reasonably possible loss or range of reasonably possible losses is material to our financial statements.

Qui Tam Action. As disclosed in our current report on Form 8-K filed on October 14, 2015, we entered into a settlement agreement on October 8, 2015 to resolve all claims made against us in the previously-disclosed qui tam (or “whistle blower”)action pending in the United States District Court for the Northern District of Illinois captioned United States of America ex rel. Jennifer D. Perez v. Stericycle, Inc., Case No. 1:08-cv-2390 (the “Qui Tam Action”). Originally filed under seal on April 28, 2008 by a former employee of ours (“Relator”) on behalf of the federal government, the Qui Tam Action was amended on June 28, 2010 to add the States of California, Delaware, Florida, Illinois, Indiana, Nevada, New Hampshire, New Jersey, New York, North Carolina, Rhode Island, Tennessee, the Commonwealths of Massachusetts and Virginia, and the District of Columbia (except for New Hampshire and New York, the “Government Entities”). The Qui Tam Action was further amended on July 23, 2013 to allege certain claims on behalf of the Government Entities and to drop any claims on behalf of the State of New Hampshire. The State of New York pursued its own investigation under the New York False Claims Act resulting in our settlement announced by the New York Attorney General’s office on January 8, 2013. Brought under the federal False Claims Act and comparable state statutes, the Qui Tam Action alleged that, from January 1, 2003 to June 30, 2014, we improperly increased our service price to certain government customers without their consent or contractual authorization. We have denied all liability for the claims made in the Qui Tam Action but have agreed to settle to avoid the expense, burden and inherent risk and uncertainty of litigation.

Under the terms of the settlement agreement entered into with Relator (the “Settlement”), we paid (i) $26.75 million to a third-party administrator to be allocated among the Government Entities as determined by the Government Entities themselves without any involvement by us and (ii) $1.75 million in full satisfaction of any claims by Relator and Relator’s counsel for attorneys’ fees, expenses and costs. We did not admit in the Settlement to any of the allegations in the Qui Tam Action, and the Settlement cannot be used as an admission of wrongdoing or liability on our part. In addition, we are completely released from any and all claims brought by Relator and the Government Entities.

In view of the status of negotiations underlying the pending Settlement, we recorded a pre-tax accrual of $28.5 million in accrued liabilities on our consolidated balance sheet as of September 30, 2015 and a pre-tax charge of $28.5 million in selling, general and administrative expenses on our consolidated statement of income for the three months ended September 30, 2015. We made the payments described above on October 21, 2015 in accordance with the terms of the settlement agreement.

Class Action Lawsuits. As we have previously disclosed, we were served on March 12, 2013 with a class action complaint filed in the U.S. District Court for the Western District of Pennsylvania by an individual plaintiff for itself and on behalf of all other “similarly situated” customers of ours. The complaint alleges, among other things, that we imposed unauthorized or excessive price increases and other charges on our customers in breach of our contracts and in violation of the Illinois Consumer Fraud and Deceptive Business Practices Act. The complaint sought certification of the lawsuit as a class action and the award to class members of appropriate damages and injunctive relief.

The Pennsylvania class action complaint was filed in the wake of a settlement with the State of New York of an investigation under the New York False Claims Act which arose out of the Qui Tam Action described above.

Following the filing of the Pennsylvania class action complaint, we were served with class action complaints filed in federal court in California, Florida, Illinois, Mississippi and Utah and in state court in California. These complaints asserted claims and allegations substantially similar to those made in the Pennsylvania class action complaint. All of these cases appear to be follow-on litigation to our settlement with the State of New York. On August 9, 2013, the Judicial Panel on Multidistrict Litigation (MDL) granted our Motion to Transfer these related actions to the Northern District of Illinois for centralized pretrial proceedings. On December 10, 2013, we filed our answer to the Amended Consolidated Class Action Complaint in the MDL action, generally denying the allegations therein. The MDL action is in the discovery stage.

We believe that we have operated in accordance with the terms of our customer contracts and that these complaints are without merit. We intend to vigorously defend ourselves against each of these lawsuits.

We have not accrued any amounts in respect of these class action lawsuits, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) the proceedings are at an early stage and (iii) in our judgment, there are no comparable proceedings against other defendants that might provide guidance in making estimates.

Junk Fax Lawsuit. As previously disclosed, on May 20, 2015, we entered into a settlement agreement to resolve all claims made against us and certain of our subsidiaries in Sawyer v. Stericycle, et al., Case No. 2015 CH 07190 (the “TCPA Action”), a class action complaint pending in the Circuit Court of Cook County, Illinois (the “Court”). The TCPA Action is the successor lawsuit to the class action complaint filed in the U.S. District Court for the Northern District of Illinois (Case 1:14-cv-02070) that we have previously disclosed and that was dismissed pursuant to the parties’ joint stipulation of dismissal. The TCPA Action alleges that from 2010 to 2014 we violated the Telephone Consumer Protection Act of 1991, as amended by the Junk Fax Prevention Act of 2005, by sending facsimile advertisements to plaintiffs or putative class members that either were unsolicited and/or did not contain a valid opt-out notice. We have denied all liability for the claims made in the TCPA Action but have agreed to settle to avoid the expense, burden and inherent risk and uncertainty of litigation.

Under the terms of the settlement agreement entered into with the two class representatives, we agreed to make available a fund of $45.0 million (the “Settlement Fund”) to pay class members who submit a valid claim form within a 90-day period, to pay an incentive award to each of the class representatives, to pay attorneys’ fees and expenses to plaintiffs’ attorneys, and to pay fees and costs of a third-party settlement administrator (the “TCPA Settlement”). The plaintiffs’ attorneys sought attorneys’ fees of one-third of the Settlement Fund, plus out-of-pocket expenses, to be paid from the Settlement Fund. As part of the TCPA Settlement, we do not admit to any of the allegations in the TCPA Action and will be completely released from any claims related to faxes sent by us or on our behalf from March 25, 2010 through April 30, 2015.

In view of the TCPA Settlement, we recorded a pre-tax accrual of $45.0 million in accrued liabilities on our consolidated balance sheet and a pre-tax charge of $45.0 million in selling, general and administrative expenses on our consolidated statement of income during the second quarter of 2015. We made payments totaling approximately $15.2 million in respect of the incentive awards to each of the class representatives and the attorneys’ fees and expenses of plaintiffs’ attorneys during August 2015. Based on information provided by the third-party settlement administrator, we will pay a total of approximately $13.0 million in respect of valid claims submitted by class members within the claims period sometime during the fourth quarter of 2015. As a result, we will retain the balance of the Settlement Fund, or approximately $16.8 million, with no further obligation to make payments in respect of the TCPA Settlement. We have adjusted the accrual on our consolidated balance sheet as of September 30, 2015 and the charge on our consolidated statement of income for the three months ended September 30, 2015 accordingly. 

Environmental Matters. On April 22, 2014, we completed our acquisition of PSC Environmental Services, LLC (“PSC Environmental”) and consequently became subject to the legal proceedings in which PSC Environmental was a party on that date. PSC Environmental’s operations are regulated by federal, state and local laws enacted to regulate the discharge of materials into the environment, remediate contaminated soil and groundwater or otherwise protect the environment. As a result of this continuing regulation, PSC Environmental frequently becomes a party to legal or administrative proceedings involving various governmental authorities and other interested parties. The issues involved in these proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by PSC Environmental or by other parties to which either PSC Environmental or the prior owners of certain of its facilities shipped wastes.

From time to time, PSC Environmental may be subject to fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. We believe that the fines or other penalties that PSC Environmental may pay in connection with any pending regulatory proceedings of this nature will not, individually or in the aggregate, be material to our financial statements.

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ACQUISITIONS - Preliminary Purchase Price Allocation and Other Adjustments to Purchase Price Allocations (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 2,447,454	$ 2,418,832		$ 2,231,582
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Fixed assets	13,635		$ 127,621
Intangibles	70,282		242,792
Goodwill	85,393		202,391
Accounts receivable	22,475		56,696
Accounts payable	(10,637)		(32,561)
Net other liabilities	(4,875)		(67,564)
Debt	(4,803)		(22,097)
Net deferred tax liabilities	(2,467)		(70,580)
Noncontrolling interests	0		(6,943)
Total purchase price allocation	$ 169,003		$ 429,755

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NEW ACCOUNTING STANDARDS (Policies)

9 Months Ended

Sep. 30, 2015

Accounting Changes and Error Corrections [Abstract]

New Accounting Standards

Accounting Standards Recently Adopted

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

On January 1, 2015, we adopted guidance on the presentation and disclosures of reporting discontinued operations. The new guidance defines a discontinued operation as a disposal of a component or group of components that is disposed of or is classified as held for sale and "represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results." For disposals of individually significant components that do not qualify as discontinued operations, an entity must disclose pre-tax earnings of the disposed component. The Company has not disposed of a component of our entity and therefore the implementation of this guidance did not affect our financial position, results of operations, or disclosure requirements.

Accounting Standards Issued But Not Yet Adopted

Interest-Imputation of Interest

In April 2015, the Financial Accounting Standards Board (the "FASB") issued guidance that requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs are not affected by the accounting standard update. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The revised standard will be adopted by the Company on January 1, 2016, will be applied retrospectively and will require reclassifications within the Company’s consolidated balance sheets and statements of cash flows.  The revised standard only affects presentation and therefore will not have an impact on the Company’s results of operations.

Revenue From Contracts With Customers

In May 2014, the FASB issued guidance to provide a single, comprehensive revenue recognition model for all contracts with customers. The revenue guidance contains principles that an entity will apply to determine the measurement of revenue and timing of when it is recognized. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. The amended authoritative guidance associated with revenue recognition is effective for the Company on January 1, 2018. The amended guidance may be applied retrospectively for all periods presented or retrospectively with the cumulative effect of initially applying the amended guidance recognized at the date of initial application. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

Accounting for Share-Based Payment When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period

In June 2014, the FASB issued guidance that applies to all reporting entities that grant their employees share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. It requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and follows existing accounting guidance for the treatment of performance conditions. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The Company does not have any share-based payments with a performance target and therefore does not expect the adoption of this guidance to have any impact on the Company’s financial position or results of operations.

Simplifying the Accounting for Measurement-Period Adjustments

In September 2015, the FASB issued guidance that eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. Instead, an acquirer will recognize a measurement-period adjustments during the period in which it determines the amount of the adjustment. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
OPERATING ACTIVITIES:
Net income	$ 189,426	$ 245,488
Adjustments to reconcile net income to net cash provided by operating activities:
Stock compensation expense	16,158	13,365
Excess tax benefit of stock options exercised	(15,483)	(10,747)
Depreciation	55,476	55,388
Amortization	26,957	24,214
Deferred income taxes	(17,169)	8,833
Change in fair value of contingent consideration	(640)	3,953
Other, net	6,326	1,379
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable	(66,352)	(25,420)
Accounts payable	29,170	13,383
Accrued liabilities	77,820	17,640
Deferred revenues	(3,412)	2,326
Other assets and liabilities	(4,986)	(4,830)
Net cash provided by operating activities	293,291	344,972
INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired	(97,098)	(328,811)
Purchases of investments	(635,919)	(2,051)
Capital expenditures	(72,566)	(66,262)
Net cash used in investing activities	(805,583)	(397,124)
FINANCING ACTIVITIES:
Repayments of long-term debt and other obligations	(61,805)	(45,031)
Proceeds from foreign bank debt	42,535	151,605
Repayments of foreign bank debt	(76,387)	(136,025)
Proceeds from term loan	250,000	0
Repayment of term loan	(250,000)	0
Proceeds from private placement of long-term note	300,000	0
Repayments of private placement of long-term note	(100,000)	0
Proceeds from senior credit facility	1,338,140	1,154,100
Repayments of senior credit facility	(1,614,968)	(979,059)
Payments on capital lease obligations	(2,813)	(4,014)
Payments of deferred financing costs	0	(2,280)
Payment for hedge	(8,833)	0
Purchases and cancellations of treasury stock	(103,029)	(157,004)
Proceeds from issuance of mandatory convertible preferred stock	746,900	0
Proceeds from issuance of common stock	53,529	33,904
Excess tax benefit of stock options exercised	15,483	10,747
Payments to noncontrolling interests	(5,236)	(732)
Net cash provided by financing activities	523,516	26,211
Effect of exchange rate changes on cash and cash equivalents	(577)	759
Net increase/ (decrease) in cash and cash equivalents	10,647	(25,182)
Cash and cash equivalents at beginning of period	22,236	67,167
Cash and cash equivalents at end of period	32,883
NON-CASH ACTIVITIES:
Issuances of obligations for acquisitions	$ 71,905	$ 100,944

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accounts receivable, allowance for doubtful accounts	$ 19,896	$ 19,083
Property, plant and equipment, accumulated depreciation	402,113	364,124
Intangible assets, accumulated amortization	$ 136,251	$ 114,922
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	120,000,000	120,000,000
Common stock, issued (in shares)	84,942,134	84,883,517
Common stock, outstanding (in shares)	84,942,134	84,883,517
Series A preferred stock
Preferred stock, par value (in dollars per share)	$ 0.01
Preferred stock, authorized (in shares)	1,000,000
Preferred stock, issued (in shares)	770,000
Preferred stock, outstanding (in shares)	770,000

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GOODWILL AND OTHER INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill and other identifiable indefinite lived intangibles are not amortized, but are subject to an annual impairment test, or more frequent testing if circumstances indicate that they may be impaired.

Goodwill:

We have two geographical reportable segments, "United States" and "International", both of which have goodwill. We have retroactively reclassified $4.3 million of goodwill related to Puerto Rico from the United States segment to the International segment. The changes in the carrying amount of goodwill since January 1, 2014, by reportable segment, were as follows:

In thousands
	United States			International			Total
Balance as of January 1, 2014	$	1,673,810		$	557,772		$	2,231,582
Goodwill acquired during the year	169,754			88,263			258,017
Purchase accounting allocation adjustments	(4,825		)	(17,595		)	(22,420		)
Changes due to foreign currency fluctuations	(2,337		)	(46,010		)	(48,347		)
Balance as of December 31, 2014	1,836,402			582,430			2,418,832
Goodwill acquired during the year	71,119			29,200			100,319
Purchase accounting allocation adjustments	(14,514		)	(412		)	(14,926		)
Goodwill other changes	—			(440		)	(440		)
Changes due to foreign currency fluctuations	(4,210		)	(52,121		)	(56,331		)
Balance at September 30, 2015	$	1,888,797		$	558,657		$	2,447,454

Current year adjustments to goodwill for certain 2014 acquisitions are primarily due to the finalization of intangible asset valuations.

During the quarter ended June 30, 2015, we performed our annual goodwill impairment evaluation for our three reporting units: Domestic Regulated and Compliance Services, Domestic Regulated Recall and Returns Management Services, and International Regulated and Compliance Services. We calculated fair value for our reporting units using an income method and validated those results using a market approach. Both the income and market approaches indicated no impairment to goodwill to any of our three reporting units.

Income Approach: The income approach uses expected future cash flows of each reporting unit and discounts those cash flows to present values. Expected future cash flows are calculated using management assumptions of internal growth, capital expenditures, and cost efficiencies. Future acquisitions are not included in the expected future cash flows. We use a discount rate based on our Company calculated weighted average cost of capital which is adjusted for each of our reporting units based on size risk premium and country risk premium. Significant assumptions used in the income approach include realization of future cash flows and the discount rate used to present value those cash flows.

The results of our goodwill impairment test using the income approach indicated the fair value of our Domestic Regulated and Compliance Services and Recall and Returns Management Services reporting units exceeded book value by a substantial amount; in excess of 100%. Our International Regulated and Compliance Services reporting units' fair value exceeded book value by approximately 88% and had $589.3 million in assigned goodwill at June 30, 2015.

Market Approach: Our market approach begins by calculating the market capitalization of the Company using the average stock price for the prior twelve months and the outstanding share count at June 30, 2015. We then look at the Company's Earnings Before Interest, Tax, Depreciation, and Amortization ("EBITDA"), adjusted for stock compensation expense and other items, such as changes in the fair value of contingent consideration, restructuring and plant conversion expenses, and litigation settlement, for the prior twelve months. The calculated market capitalization is divided by the modified EBITDA to arrive at a valuation multiple. The fair value of each reporting unit is then calculated by taking the product of the valuation multiple and the trailing twelve months' modified EBITDA of that reporting unit. The fair value was then compared to the reporting units' book value and determined to be in excess of the book value. We believe that starting with the fair value of the company as a whole is a reasonable measure as that fair value is then allocated to each reporting unit based on that reporting unit's individual earnings. A sustained drop in our stock price would have a negative impact to our fair value calculations. A temporary drop in earnings of a reporting unit would have a negative impact to our fair value calculations.

The results of our goodwill impairment test using the market approach corroborated the results of the impairment test under the income approach and indicated the fair value of our reporting units exceeded their respective book values by substantial amounts.

Other Intangible Assets:

As of September 30, 2015 and December 31, 2014, the values of other intangible assets were as follows:

In thousands
	September 30, 2015						December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	8,343	$	6,404	$	1,939	$	8,474	$	5,688	$	2,786
Customer relationships	783,615		128,178		655,437		755,148		107,365		647,783
Tradenames	4,257		1,004		3,253		6,062		1,313		4,749
Technology	611		601		10		611		521		90
Other	501		64		437		539		35		504
Indefinite lived intangibles:
Operating permits	238,517		—		238,517		247,933		—		247,933
Tradenames	9,910		—		9,910		5,800		—		5,800
Total	$	1,045,754	$	136,251	$	909,503	$	1,024,567	$	114,922	$	909,645

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:

In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	70,282
Impairments during the year	(2,414		)
Amortization during the year	(26,957		)
Changes due to foreign currency fluctuations	(41,053		)
Balance at September 30, 2015	$	909,503

During the quarter ended March 31, 2015 we wrote off $0.2 million in customer relationships, $1.2 million in operating permits, and $1.0 million in tradenames, due to rationalizing certain of our domestic and international operations (see Note 13 - Restructuring Charges). These expenses are reflected as part of SG&A on our Condensed Consolidated Statements of Income. Under generally accepted accounting principles, a fair value must be assigned to all acquired assets based on a theoretical "market participant" regardless of the acquirer's intended use for those assets. This accounting treatment can lead to the recognition of losses when a company disposes of acquired assets. We complete our annual impairment analysis of our indefinite lived intangibles during the quarter ended December 31 of each year, or more frequently, if circumstances indicate that they may be impaired.

Our finite-lived intangible assets are amortized over their useful lives. We have determined that our customer relationships have useful lives from 10 to 40 years based upon the type of customer, with a weighted average remaining useful life of 23.2 years. We have covenants not-to-compete intangibles with useful lives from 3 to 14 years, with a weighted average remaining useful life of 5.3 years. We have tradename intangibles with useful lives from 10 to 40 years, with a weighted average remaining useful life of 16.4 years. We have determined that our permits have indefinite lives due to our ability to renew these permits with minimal additional cost, and therefore these are not amortized.

During the quarters ended September 30, 2015 and 2014, the aggregate amortization expense was $9.2 million and $8.5 million, respectively. For the nine months ended September 30, 2015 and 2014, the aggregate amortization expense was $27.0 million and $24.2 million, respectively.

The estimated amortization expense for each of the next five years, assuming no additional amortizable intangible assets, is as follows for the years ended December 31:

In thousands
2015	$	35,839
2016	35,547
2017	35,422
2018	35,384
2019	35,363

Future amortization expense may fluctuate depending on changes in foreign currency rates, future acquisitions, or changes to the estimated amortizable life of the intangibles. The estimates for amortization expense noted above are based upon foreign exchange rates as of September 30, 2015.

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Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 30, 2015
Document Documentand Entity Information [Abstract]
Entity Registrant Name	STERICYCLE INC
Entity Central Index Key	0000861878
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	SRCL
Amendment Flag	false
Entity Common Stock, Shares Outstanding		84,984,775

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ENVIRONMENTAL REMEDIATION LIABILITIES

9 Months Ended

Sep. 30, 2015

Environmental Remediation Obligations [Abstract]

ENVIRONMENTAL REMEDIATION LIABILITIES

ENVIRONMENTAL REMEDIATION LIABILITIES

We record a liability for environmental remediation when such liability becomes probable and the costs or damages can be reasonably estimated. We accrue environmental remediation costs, on an undiscounted basis, associated with identified sites where an assessment has indicated that cleanup costs are probable and can be reasonably estimated, but the timing of such payments is not fixed and determinable. Such accruals are based on currently available information, estimated timing of remedial actions, existing technology, and enacted laws and regulations. The liability for environmental remediation is included in the Condensed Consolidated Balance Sheets in current liabilities within "Accrued liabilities" and in non-current liabilities within "Other liabilities."

At September 30, 2015, the total environmental remediation liabilities recorded were $32.0 million, of which $2.8 million was classified as accrued liabilities and $29.2 million was classified as other liabilities.

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CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Revenues	$ 718,596	$ 667,877	$ 2,097,604	$ 1,878,654
Costs and Expenses:
Cost of revenues (exclusive of depreciation shown below)	404,918	373,973	1,169,051	1,026,149
Depreciation - cost of revenues	14,003	15,235	42,723	43,063
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	185,932	125,603	509,047	355,330
Depreciation – selling, general and administrative expenses	4,248	5,033	12,753	12,325
Amortization	9,239	8,497	26,957	24,214
Total Costs and Expenses	618,340	528,341	1,760,531	1,461,081
Income from Operations	100,256	139,536	337,073	417,573
Other Income (Expense):
Interest income	8	27	82	97
Interest expense	(17,386)	(16,644)	(52,448)	(47,980)
Other expense, net	(1,754)	(477)	(3,956)	(1,569)
Total Other Expense	(19,132)	(17,094)	(56,322)	(49,452)
Income Before Income Taxes	81,124	122,442	280,751	368,121
Income Tax Expense	28,404	39,401	91,325	122,633
Net Income	52,720	83,041	189,426	245,488
Less: net income attributable to noncontrolling interests	457	196	1,256	1,558
Net Income Attributable to Stericycle, Inc.	52,263	82,845	188,170	243,930
Less: mandatory convertible preferred stock dividend	1,684	0	1,684	0
Net Income Attributable to Stericycle, Inc. Common Shareholders	$ 50,579	$ 82,845	$ 186,486	$ 243,930
Earnings Per Common Share Attributable to Stericycle, Inc. Common Shareholders:
Basic (in dollars per share)	$ 0.60	$ 0.98	$ 2.19	$ 2.87
Diluted (in dollars per share)	$ 0.59	$ 0.96	$ 2.16	$ 2.83
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	84,884,599	84,858,360	84,960,955	84,940,975
Diluted (in shares)	86,120,315	86,116,455	86,234,859	86,237,202

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FAIR VALUE MEASUREMENTS

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (2) an entity's own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

Level 1 – Quoted prices in active markets for identical assets or liabilities.

Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability.

Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of assets and liabilities and their placement within the fair value hierarchy levels. The impact of our creditworthiness has been considered in the fair value measurements noted below. In addition, the fair value measurement of a liability must reflect the nonperformance risk of an entity. There were no movements of items between fair value hierarchies.

In thousands
			Fair Value Measurements Using
	Total as of September 30, 2015		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	32,883	$	32,883	$	—	$	—
Short-term investments	636,288		636,288		—		—
Derivative financial instruments	1,111		—		1,111		—
Total assets	$	670,282	$	669,171	$	1,111	$	—
Liabilities:
Contingent consideration	$	25,835	$	—	$	—	$	25,835
Total liabilities	$	25,835	$	—	$	—	$	25,835

In thousands
			Fair Value Measurements Using
	Total as of December 31, 2014		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	22,236	$	22,236	$	—	$	—
Short-term investments	380		380		—		—
Derivative financial instruments	515		—		515		—
Total assets	$	23,131	$	22,616	$	515	$	—
Liabilities:
Contingent consideration	$	19,941	$	—	$	—	$	19,941
Derivative financial instruments	2,408		—		2,408		—
Total liabilities	$	22,349	$	—	$	2,408	$	19,941

In September 2015, short-term investments increased by $636.2 million due to funds received from the issuance of mandatory convertible preferred stock which were invested in short-term money market funds until the funding of a portion of the Shred-it acquisition described in Note 15 - Subsequent Events.

For our derivative financial instruments we use a market approach valuation technique based on observable market transactions of spot and forward rates.

We recorded a $1.1 million asset related to the fair value of the U.S. dollar-Canadian dollar foreign currency swap which was classified as other assets at September 30, 2015. The objective of the swap is to offset the foreign exchange risk to the U.S. dollar equivalent cash outflows for our Canadian subsidiary.

In March 2015, we cash settled a treasury lock hedge for $8.8 million of which $5.3 million, net of $3.5 million tax, was recognized in accumulated other comprehensive income. The purpose was to lock in the interest rate on the issuance of private placement debt in July 2015 and to eliminate interest rate risk.

We had contingent consideration liabilities recorded using Level 3 inputs in the amount of $25.8 million, of which $8.9 million was classified as current liabilities, at September 30, 2015. Contingent consideration liabilities were $19.9 million at December 31, 2014. Contingent consideration represents amounts expected to be paid as part of acquisition consideration only if certain future events occur. These events are usually targets for revenues or earnings related to the business acquired. We arrive at the fair value of contingent consideration by applying a weighted probability of potential outcomes to the maximum possible payout. The calculation of these potential outcomes is dependent on both past financial performance and management assumptions about future performance. If the financial performance measures were all fully met, our maximum liability would be $45.2 million at September 30, 2015. Contingent consideration liabilities are reassessed each quarter and are reflected in the Condensed Consolidated Balance Sheets as part of "Other current liabilities" and "Other liabilities". Changes to contingent consideration are reflected in the table below:

In thousands
Contingent consideration at December 31, 2014	$	19,941
Increases due to acquisitions	12,945
Decrease due to payments	(1,444		)
Changes due to foreign currency fluctuations	(4,967		)
Changes in fair value reflected in Selling, general, and administrative expenses	(640		)
Contingent consideration at September 30, 2015	$	25,835

Fair Value of Debt: At September 30, 2015, the fair value of the Company’s debt obligations was estimated, using Level 2 inputs, at $1.52 billion, the same as its carrying amount. At December 31, 2014, the fair value of the Company’s debt obligations was estimated, using Level 2 inputs, at $1.67 billion, as compared to its carrying amount of $1.66 billion. The fair values were estimated using an income approach by applying market interest rates for comparable instruments. The Company has no current plans to retire a significant amount of its debt prior to maturity.

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NEW ACCOUNTING STANDARDS

9 Months Ended

Sep. 30, 2015

Accounting Changes and Error Corrections [Abstract]

NEW ACCOUNTING STANDARDS

NEW ACCOUNTING STANDARDS

Accounting Standards Recently Adopted

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

On January 1, 2015, we adopted guidance on the presentation and disclosures of reporting discontinued operations. The new guidance defines a discontinued operation as a disposal of a component or group of components that is disposed of or is classified as held for sale and "represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results." For disposals of individually significant components that do not qualify as discontinued operations, an entity must disclose pre-tax earnings of the disposed component. The Company has not disposed of a component of our entity and therefore the implementation of this guidance did not affect our financial position, results of operations, or disclosure requirements.

Accounting Standards Issued But Not Yet Adopted

Interest-Imputation of Interest

In April 2015, the Financial Accounting Standards Board (the "FASB") issued guidance that requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs are not affected by the accounting standard update. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The revised standard will be adopted by the Company on January 1, 2016, will be applied retrospectively and will require reclassifications within the Company’s consolidated balance sheets and statements of cash flows.  The revised standard only affects presentation and therefore will not have an impact on the Company’s results of operations.

Revenue From Contracts With Customers

In May 2014, the FASB issued guidance to provide a single, comprehensive revenue recognition model for all contracts with customers. The revenue guidance contains principles that an entity will apply to determine the measurement of revenue and timing of when it is recognized. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. The amended authoritative guidance associated with revenue recognition is effective for the Company on January 1, 2018. The amended guidance may be applied retrospectively for all periods presented or retrospectively with the cumulative effect of initially applying the amended guidance recognized at the date of initial application. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

Accounting for Share-Based Payment When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period

In June 2014, the FASB issued guidance that applies to all reporting entities that grant their employees share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. It requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and follows existing accounting guidance for the treatment of performance conditions. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. The Company does not have any share-based payments with a performance target and therefore does not expect the adoption of this guidance to have any impact on the Company’s financial position or results of operations.

Simplifying the Accounting for Measurement-Period Adjustments

In September 2015, the FASB issued guidance that eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. Instead, an acquirer will recognize a measurement-period adjustments during the period in which it determines the amount of the adjustment. The standard will be effective for annual periods and interim periods within those annual periods beginning after December 15, 2015, with early adoption permitted. We are in the process of assessing the provisions of the amended guidance and have not determined whether the adoption will have a material impact on our consolidated financial statements.

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SUBSEQUENT EVENTS

9 Months Ended

Sep. 30, 2015

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

The Company evaluated subsequent events through the date of filing this Quarterly Report on Form 10-Q.

As disclosed in our current report on Form 8-K filed on October 7, 2015, we completed our acquisition (the “Acquisition”) of Shred-it International ULC, an Alberta unlimited liability corporation (“SII”), Shred-it JV LP, an Ontario limited partnership (“Shred-it JV”), Boost GP Corp., an Ontario corporation (“Boost GP”), and Boost Holdings LP, an Ontario limited partnership (together with SII, Shred-it JV and Boost GP, “Shred-it”), on October 1, 2015 pursuant to the terms of a Securities Purchase Agreement dated as of July 15, 2015 (as amended, the “Purchase Agreement”) with the equity holders of Shred-it. Under the Purchase Agreement, we and certain of our subsidiaries acquired Shred-it for an aggregate purchase price of $2.3 billion , plus the total enterprise value of franchises acquired by Shred-it after July 15, 2015 of $12.7 million . The allocation of the purchase prices to acquired assets and liabilities is incomplete, pending finalization of asset valuations and completion accounts.

As also disclosed in our current report on Form 8-K filed on October 7, 2015, we entered into a note purchase agreement with 25 institutional purchasers on October 1, 2015 pursuant to which we issued and sold to the purchasers $150.0 million of new six-year 2.89% unsecured senior notes and $150.0 million of new eight-year 3.18% unsecured senior notes (collectively, the “Notes”). The Notes bear interest on the unpaid principal thereof from October 1, 2015 at their respective stated rates of interest payable semiannually in arrears on the first (1^st) day of April and October in each year and at maturity, commencing on April 1, 2016. The Notes are unsecured obligations. We used the proceeds from the sale of the Notes to fund a portion of the purchase price paid under the Acquisition.

On October 1, 2015, we borrowed $1.3 billion under the Term Loan Facility described in our current report on Form 8-K filed on August 27, 2015 to fund a portion of the purchase price paid under the Acquisition (see Note 11- Debt for more information).

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DEBT

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

DEBT

DEBT

Long-term debt consisted of the following:

In thousands
	September 30, 2015		December 31, 2014
Obligations under capital leases	$	8,390	$	9,185
$1.2 billion senior credit facility weighted average rate 1.51%, due in 2019	176,387		459,975
$1.5 billion term loan facility, due in 2020	—		—
$100 million private placement notes 5.64%, due in 2015	—		100,000
$175 million private placement notes 3.89%, due in 2017	175,000		175,000
$125 million private placement notes 2.68%, due in 2019	125,000		125,000
$225 million private placement notes 4.47%, due in 2020	225,000		225,000
$125 million private placement notes 3.26%, due in 2022	125,000		125,000
$200 million private placement notes 2.72%, due in 2022	200,000		—
$100 million private placement notes 2.79%, due in 2023	100,000		—
Promissory notes and deferred consideration weighted average rate of 3.74% and weighted average maturity of 3.5 years	271,568		279,590
Foreign bank debt weighted average rate 9.20% and weighted average maturity of 2.3 years	109,747		160,465
Total debt	1,516,092		1,659,215
Less: current portion of total debt	106,405		131,969
Long-term portion of total debt	$	1,409,687	$	1,527,246

Our $1.2 billion senior credit facility maturing in June 2019, our $175.0 million private placement notes maturing in October 2017, our $125.0 million private placement notes maturing in December 2019, our $225.0 million private placement notes maturing in October 2020, our $125.0 million private placement notes maturing in December 2022, our $200.0 million private placement notes maturing July 2022, and our $100.0 million private placement notes maturing in July 2023 all require us to comply with various financial, reporting and other covenants and restrictions, including a restriction on dividend payments. The financial debt covenants are the same for the senior credit facility and the private placement notes. At September 30, 2015, we were in compliance with all of our financial debt covenants.

As of September 30, 2015 and December 31, 2014, we had $149.2 million and $162.9 million, respectively, committed to outstanding letters of credit under our senior credit facility. The unused portion of the revolving credit facility as of September 30, 2015 and December 31, 2014 was $874.4 million and $577.1 million, respectively.

We repaid our $100.0 million private placement notes that matured in April 2015 by borrowing from our long-term senior credit facility.

On April 30, 2015, we entered into a note purchase agreement with several institutional purchasers pursuant to which we have issued and sold to the purchasers $200.0 million of our new seven-year 2.72% unsecured senior notes ("Series A") and $100.0 million of our new eight-year 2.79% unsecured senior notes ("Series B"). Closing of the issuance and sale of the notes occurred on July 31, 2015.

The Series A notes bear interest at the fixed rate of 2.72% per annum, and the Series B notes bear interest at the fixed rate of 2.79% per annum. Interest will be payable in arrears semi-annually on January 1 and July 1 beginning on January 1, 2016. The principal of the Series A notes will be payable at the maturity of the notes on July 1, 2022, and the principal of the Series B notes will be payable at the maturity of the notes on July 1, 2023. The notes are unsecured obligations.

The Company entered into a Term Loan Credit Agreement dated as of August 21, 2015 (the “Term Loan Credit Agreement”) with Bank of America, N.A., as the Administrative Agent maturing on August 21, 2020. The Term Loan Credit Agreement provides for a term loan facility (“Term Loan Facility”) under which the Company may obtain loans up to an aggregate amount of $1.5 billion.

Borrowings under the Term Loan Facility may bear interest at a Base Rate or Eurodollar Rate, respectively, plus the Applicable Rate. The Base Rate is for any day a fluctuating rate per annum equal to the highest of (i) the Federal Funds Rate plus 1/2 of 1.00%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Bank of America as its “prime rate” and (iii) the Eurodollar Rate plus 1.00%. The Eurodollar Rate is a rate per annum determined for the applicable interest period by reference to the London interbank offered rate. The Applicable Rate for any Base Rate Loans is between 0 and 100 basis points per annum, and the Applicable Rate for any Eurodollar Rate Loan is between 100 and 200 basis points per annum, in each case depending on the consolidated leverage ratio for the Company and its subsidiaries as set forth in the most recent compliance certificate received by the administrative agent.

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EQUITY

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

EQUITY

EQUITY

Series A Mandatory Convertible Preferred Stock Offering: On September 15, 2015, we completed a registered public offering of 7,700,000 depositary shares, each representing a 1/10th interest in a share of our 5.25% Series A Mandatory Convertible Preferred Stock, par value $0.01 per share (the "Series A Preferred Stock"), at a public offering price of $100.00 per depository share for total gross proceeds of $770.0 million. Net proceeds were $746.9 million after deducting underwriting discounts, commissions and expenses. We used the net proceeds from this offering to fund a portion of the purchase price paid under our acquisition of Shred-it (see Note 15 - Subsequent Events).

Unless earlier converted or redeemed, each share of the Series A Preferred Stock will automatically convert into between 5.8716 and 7.3394 shares of our common stock, subject to anti-dilution and other adjustments, on the mandatory conversion date, which is expected to be September 15, 2018. The number of shares of our common stock issuable on conversion will be determined based on the volume-weighted average price of our common stock over the 20 trading day period commencing on and including the 23^rd scheduled trading day prior to September 15, 2018. Subject to certain restrictions, at any time prior to September 15, 2018, holders of the Series A Preferred Stock may elect to convert all or a portion of their shares into common stock at the minimum conversion rate of 5.8716 shares of common stock per share of Series A Preferred Stock, subject to adjustment.

Dividends on shares of the Series A Preferred Stock are payable on a cumulative basis when, as and if declared by our board of directors, or an authorized committee thereof, at an annual rate of 5.25% on the liquidation preference of $1,000 per share (and, correspondingly, $100.00 per share with respect to the depositary shares). The dividends may be payable in cash, or subject to certain limitations, in shares of our common stock or any combination of cash and shares of our common stock on March 15, June 15, September 15 and December 15 of each year, commencing on December 15, 2015, and to, and including, September 15, 2018.

The following table provides information about our repurchase of shares of our common stock during the nine months ended September 30, 2015:

	Number of Shares Repurchased and Canceled	Amount for Repurchases		Average Price Paid per Share
		(in thousands)
Three months ended March 31, 2015	100,713	$	13,771	$	136.74
Three months ended June 30, 2015	574,807	77,390		134.64
Three months ended September 30, 2015	88,376	11,868		134.29
Nine months ended September 30, 2015	763,896	$	103,029	$	134.87
Three months ended March 31, 2014	685,990	$	78,340	$	114.20
Three months ended June 30, 2014	527,243	58,846		111.61
Three months ended September 30, 2014	198,728	23,173		116.60
Nine months ended September 30, 2014	1,411,961	$	160,359	$	113.57

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GEOGRAPHIC INFORMATION - Detailed Information for Reporting Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 718,596	$ 667,877	$ 2,097,604	$ 1,878,654
Income before income taxes	81,124	122,442	280,751	368,121
Income taxes	28,404	39,401	91,325	122,633
Net Income	52,720	83,041	189,426	245,488	$ 328,146
Less: net income attributable to noncontrolling interests	457	196	1,256	1,558
Net Income Attributable to Stericycle, Inc.	52,263	82,845	188,170	243,930
United States
Segment Reporting Information [Line Items]
Revenues	523,508	468,716	1,513,938	1,310,776
Net interest expense	11,110	11,538	32,254	33,804
Income before income taxes	78,200	108,575	261,005	326,215
Income taxes	27,924	34,243	96,395	114,902
Net Income Attributable to Stericycle, Inc.	50,276	74,332	164,610	211,313
Depreciation and amortization	16,905	16,822	49,400	45,354
United States | Regulated and Compliance Solutions
Segment Reporting Information [Line Items]
Revenues	493,234	452,106	1,435,407	1,246,381
United States | Recall and Returns Solutions
Segment Reporting Information [Line Items]
Revenues	30,274	16,610	78,531	64,395
International
Segment Reporting Information [Line Items]
Net interest expense	6,268	5,079	20,112	14,079
Income before income taxes	2,924	13,867	19,746	41,906
Income taxes	480	5,158	(5,070)	7,731
Net Income	2,444	8,709	24,816	34,175
Less: net income attributable to noncontrolling interests	457	196	1,256	1,558
Net Income Attributable to Stericycle, Inc.	1,987	8,513	23,560	32,617
Depreciation and amortization	10,585	11,943	33,033	34,248
International | Regulated and Compliance Solutions
Segment Reporting Information [Line Items]
Revenues	$ 195,088	$ 199,161	$ 583,666	$ 567,878

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INCOME TAXES

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

We file income tax returns in the U.S, in various states and in certain foreign jurisdictions.

The Company has recorded accruals to cover uncertain tax positions taken on previously filed tax returns. Such liabilities relate to additional taxes, interest and penalties the Company may be required to pay in various tax jurisdictions. During the course of examinations by various taxing authorities, proposed adjustments may be asserted. The Company evaluates such items on a case-by-case basis and adjusts the accrual for uncertain tax positions. During the quarter ended September 30, 2015, we had no material changes to our accruals related to previous  or current uncertain tax positions. The effective tax rates for the quarters ended September 30, 2015 and 2014 were approximately 35.0% and 32.2%, respectively. The increase in the current quarter tax rate is primarily related to larger discrete benefits utilized by the Company in the comparable 2014 period.

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STOCK BASED COMPENSATION

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

STOCK BASED COMPENSATION

STOCK BASED COMPENSATION

At September 30, 2015, we had the following stock option and stock purchase plans:

• the 2014 Incentive Stock Plan, which our stockholders approved in May 2014;

• the 2011 Incentive Stock Plan, which our stockholders approved in May 2011;

• the 2008 Incentive Stock Plan, which our stockholders approved in May 2008;

• the 2005 Incentive Stock Plan, which our stockholders approved in April 2005;

• the 2000 Non-statutory Stock Option Plan, which expired in February 2010;

• the 1997 Stock Option Plan, which expired in January 2007;

• the 1996 Directors Stock Option Plan, which expired in May 2006; and

• the Employee Stock Purchase Plan ("ESPP"), which our stockholders approved in May 2001.

Stock-Based Compensation Expense:

The following table presents the total stock-based compensation expense resulting from stock option awards, restricted stock units ("RSUs"), and the ESPP included in the Condensed Consolidated Statements of Income:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Cost of revenues – stock option plan	$	24	$	14	$	69	$	42
Selling, general and administrative – stock option plan	4,416		3,600		13,795		11,459
Selling, general and administrative – RSUs	382		319		1,103		948
Selling, general and administrative – ESPP	432		308		1,191		916
Total pre-tax expense	$	5,254	$	4,241	$	16,158	$	13,365

The following table sets forth the tax benefits related to stock compensation:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Tax benefit recognized in Statement of Income	$	1,501	$	1,319	$	5,103	$	3,248
Excess tax benefit of stock options exercised	4,584		3,667		15,483		10,747

Stock Options:

Stock option activity for the nine months ended September 30, 2015, is summarized as follows:

	Number of Options		Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Life	Total Aggregate Intrinsic Value
					(in years)	(in thousands)
Outstanding at beginning of year	5,377,857		$	80.88
Granted	959,551		131.20
Exercised	(791,434	)	67.83
Forfeited	(138,249	)	108.71
Canceled or expired	(1,876	)	76.08
Outstanding at September 30, 2015	5,405,849		$	91.02	5.89	$	261,110
Exercisable at September 30, 2015	2,837,919		$	72.66	4.95	$	189,143
Vested and expected to vest at September 30, 2015	5,183,104		$	89.90

As of September 30, 2015, there was $44.0 million of total unrecognized compensation expense related to non-vested option awards, which is expected to be recognized over a weighted average period of 3.03 years.

The following table sets forth the total intrinsic value of options exercised:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Total intrinsic value of options exercised	$	14,888	$	14,375	$	54,538	$	40,893

The total intrinsic value of options exercised represents the total pre-tax value (the difference between the sales price on that trading day the option was exercised and the exercise price associated with the respective option).

The Company uses historical data to estimate expected life and volatility. The estimated fair value of stock options at the time of the grant using the Black-Scholes option pricing model was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Stock options granted (shares)	24,275			11,555			959,551			975,038
Weighted average fair value at grant date (per share)	$	23.88		$	21.32		$	22.83		$	21.30
Assumptions:
Expected term (in years)	4.79			4.78			4.79			4.75
Expected volatility	16.01		%	16.98		%	16.56		%	17.39		%
Expected dividend yield	—		%	—		%	—		%	—		%
Risk free interest rate	1.49		%	1.59		%	1.44		%	1.52		%

Restricted Stock Units:

Restricted stock units ("RSUs") vest at the end of three or five years. Our 2008, 2011 and 2014 Plans include a share reserve related to RSUs granted at a 2-1 ratio. A summary of the status of our non-vested RSUs and changes during the nine months ended September 30, 2015, are as follows:

	Number of Units		Weighted Average Grant Date Fair Value		Total Aggregate Intrinsic Value
					(in thousands)
Non-vested at beginning of year	63,600		$	96.04
Granted	10,624		130.40
Vested and released	—		—
Forfeited	(4,273	)	101.20
Non-vested at September 30, 2015	69,951		$	100.94	$	9,745

As of September 30, 2015, there was $4.2 million of total unrecognized compensation expense related to RSUs, which is expected to be recognized over a weighted average period of 2.44 years.

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EARNINGS PER COMMON SHARE

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE

Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, shares to be purchased under the Company’s employee stock purchase plan, RSUs, and the assumed conversion of mandatory convertible preferred stock. The effect of potentially dilutive securities is reflected in diluted earnings per share by application of the "treasury stock method" for outstanding restricted stock awards and stock options. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities. For the issue of the mandatory convertible preferred stock, we use the more dilutive of the "dividend method" or the "if-converted method". Under the dividend method, the net income is reduced by the amount of the accrued dividend related to mandatory convertible preferred stock. Under the if-converted method, the dividend is ignored in favor of the diluted share count that would occur under the assumption that the mandatory convertible preferred shares were converted to common shares at the closing share price on the date of issuance.

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,
	2015			2014		2015			2014
Numerator:
Net income attributable to Stericycle, Inc.	$	52,263		$	82,845	$	188,170		$	243,930
Mandatory convertible preferred stock dividend (1)	(1,684		)	—		(1,684		)	—
Numerator for basic earnings per share attributable to Stericycle, Inc. common shareholders	$	50,579		$	82,845	$	186,486		$	243,930
Denominator:
Denominator for basic earnings per share-weighted average shares	84,884,599			84,858,360		84,960,955			84,940,975
Effect of diluted securities:
Employee stock options	1,235,716			1,258,095		1,273,904			1,296,227
Mandatory convertible preferred stock (2)	—			—		—			—
Denominator for diluted earnings per share-adjusted weighted average shares and after assumed exercises	86,120,315			86,116,455		86,234,859			86,237,202
Earnings per share – Basic	$	0.60		$	0.98	$	2.19		$	2.87
Earnings per share – Diluted	$	0.59		$	0.96	$	2.16		$	2.83

(1) Mandatory convertible preferred stock dividend - no dividend was declared or paid as of September 30, 2015.

(2) Weighted average common shares issuable upon the assumed conversion of the mandatory convertible preferred stock totaling 921,207 shares were excluded from the computation of diluted earnings per share as such conversion would have been antidilutive.

For additional information regarding outstanding employee stock options, see Note 6 - Stock Based Compensation.

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RESTRUCTURING CHARGES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges	$ 2,182	$ 16,523

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SUBSEQUENT EVENTS (Details) - USD ($)			9 Months Ended
	Oct. 07, 2015	Oct. 01, 2015	Sep. 30, 2015	Sep. 30, 2014
Subsequent Event [Line Items]
Proceeds from term loan			$ 250,000,000	$ 0
Subsequent Event | $1.5 billion term loan facility
Subsequent Event [Line Items]
Proceeds from term loan		$ 1,300,000,000
Subsequent Event | Shred-It and Boost
Subsequent Event [Line Items]
Aggregate purchase price		2,300,000,000
Enterprise value of franchises acquired		$ 12,700,000
2.89% unsecured senior notes | Subsequent Event | Senior Notes
Subsequent Event [Line Items]
Long-term debt, face amount	$ 150,000,000.0
Debt instrument, term	6 years
Stated interest rate	2.89%
3.18% unsecured senior notes | Subsequent Event | Senior Notes
Subsequent Event [Line Items]
Long-term debt, face amount	$ 150,000,000.0
Debt instrument, term	8 years
Stated interest rate	3.18%

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RESTRUCTURING CHARGES - Restructuring Reserve (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Restructuring Reserve [Roll Forward]
Charges to income	$ 10,531
Payments	(7,133)
Other	(69)
Accrued liabilities
Restructuring Reserve [Roll Forward]
Liability balance	0
Liability balance	3,329
Employee severance and related costs
Restructuring Reserve [Roll Forward]
Charges to income	7,207
Payments	(5,589)
Other	(69)
Employee severance and related costs | Accrued liabilities
Restructuring Reserve [Roll Forward]
Liability balance	0
Liability balance	1,549
Other costs
Restructuring Reserve [Roll Forward]
Charges to income	3,324
Payments	(1,544)
Other	0
Other costs | Accrued liabilities
Restructuring Reserve [Roll Forward]
Liability balance	0
Liability balance	$ 1,780

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ACQUISITIONS - Summary of Acquisition Location (Detail) - Entity	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015
Business Acquisition [Line Items]
Number of acquisitions	10	8	15	33
United States
Business Acquisition [Line Items]
Number of acquisitions				13
Brazil
Business Acquisition [Line Items]
Number of acquisitions				2
Canada
Business Acquisition [Line Items]
Number of acquisitions				1
Ireland
Business Acquisition [Line Items]
Number of acquisitions				1
Mexico
Business Acquisition [Line Items]
Number of acquisitions				2
Netherlands
Business Acquisition [Line Items]
Number of acquisitions				1
Romania
Business Acquisition [Line Items]
Number of acquisitions				4
Republic of Korea
Business Acquisition [Line Items]
Number of acquisitions				6
Spain
Business Acquisition [Line Items]
Number of acquisitions				3

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EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Net income attributable to Stericycle, Inc.	$ 52,263	$ 82,845	$ 188,170	$ 243,930
Less: Mandatory convertible preferred stock dividend	(1,684)	0	(1,684)	0
Net Income Attributable to Stericycle, Inc. Common Shareholders	$ 50,579	$ 82,845	$ 186,486	$ 243,930
Denominator:
Denominator for basic earnings per share-weighted average shares (in shares)	84,884,599	84,858,360	84,960,955	84,940,975
Effect of diluted securities:
Employee stock options (in shares)	1,235,716	1,258,095	1,273,904	1,296,227
Mandatory convertible preferred stock (in shares)	0	0	0	0
Denominator for diluted earnings per share-adjusted weighted average shares and after assumed exercises (in shares)	86,120,315	86,116,455	86,234,859	86,237,202
Earnings per share – Basic (in dollars per share)	$ 0.60	$ 0.98	$ 2.19	$ 2.87
Earnings per share – Diluted (in dollars per share)	$ 0.59	$ 0.96	$ 2.16	$ 2.83
Series A preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of diluted earnings per share (in shares)	921,207		921,207

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RESTRUCTURING CHARGES

9 Months Ended

Sep. 30, 2015

Restructuring and Related Activities [Abstract]

RESTRUCTURING CHARGES

RESTRUCTURING CHARGES

During the first quarter of 2015, management began executing a realignment of our operations to reduce labor redundancies and facility costs. As part of this realignment, the Company recorded charges related to severance, fixed asset impairments, write-off of intangible assets, and recognition of lease expense for properties no longer used but for which we have a contractual obligation. The recorded restructuring liabilities are expected to be paid primarily within the current year. While the Company believes the recorded restructuring liabilities are adequate, revisions to current estimates may be recorded in future periods based on new information as it becomes available. There could be additional initiatives in the future to further streamline our operations. As such, the Company expects further expenses related to workforce reductions and other facility rationalization costs when those restructuring plans are finalized and related expenses are estimable.

The following table below highlights $2.2 million and $16.5 million of pre-tax restructuring charges by reporting segment for the three- and nine-months ended September 30, 2015, respectively, which are reflected as part of SG&A on our Condensed Consolidated Statements of Income.

In thousands
	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	United States		International			Total Charges to Income			United States		International		Total Charges to Income
Employee severance and related costs	$	946	$	759		$	1,705		$	3,348	$	3,859	$	7,207
Other costs	351		309			660			2,141		1,183		3,324
Non-cash items:
Fixed assets impairment	—		—			—			3,133		—		3,133
Intangible assets impairment	—		—			—			2,167		247		2,414
Other	—		(183		)	(183		)	—		445		445
Total pre-tax restructuring expenses	$	1,297	$	885		$	2,182		$	10,789	$	5,734	$	16,523

The following table summarizes restructuring activity during 2015 which is reflected in the Condensed Consolidated Balance Sheets as part of "Accrued liabilities":

In thousands
	Employee Severance and Related Costs			Other Costs			Total
Liability balance at January 1, 2015	$	—		$	—		$	—
Charges to income	7,207			3,324			10,531
Payments	(5,589		)	(1,544		)	(7,133		)
Other	(69		)	—			(69		)
Liability balance at September 30, 2015	$	1,549		$	1,780		$	3,329

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FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

In thousands
			Fair Value Measurements Using
	Total as of September 30, 2015		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	32,883	$	32,883	$	—	$	—
Short-term investments	636,288		636,288		—		—
Derivative financial instruments	1,111		—		1,111		—
Total assets	$	670,282	$	669,171	$	1,111	$	—
Liabilities:
Contingent consideration	$	25,835	$	—	$	—	$	25,835
Total liabilities	$	25,835	$	—	$	—	$	25,835

In thousands
			Fair Value Measurements Using
	Total as of December 31, 2014		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
Assets:
Cash and cash equivalents	$	22,236	$	22,236	$	—	$	—
Short-term investments	380		380		—		—
Derivative financial instruments	515		—		515		—
Total assets	$	23,131	$	22,616	$	515	$	—
Liabilities:
Contingent consideration	$	19,941	$	—	$	—	$	19,941
Derivative financial instruments	2,408		—		2,408		—
Total liabilities	$	22,349	$	—	$	2,408	$	19,941

Changes to Contingent Consideration

Changes to contingent consideration are reflected in the table below:

In thousands
Contingent consideration at December 31, 2014	$	19,941
Increases due to acquisitions	12,945
Decrease due to payments	(1,444		)
Changes due to foreign currency fluctuations	(4,967		)
Changes in fair value reflected in Selling, general, and administrative expenses	(640		)
Contingent consideration at September 30, 2015	$	25,835

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EQUITY - Repurchase of Shares of Common Stock (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended		12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Equity [Abstract]
Number of Shares Repurchased and Canceled	88,376	574,807	100,713	198,728	527,243	685,990	763,896	1,411,961
Amount for Repurchases	$ 11,868	$ 77,390	$ 13,771	$ 23,173	$ 58,846	$ 78,340	$ 103,029	$ 160,359	$ 194,066
Average Price Paid per Share	$ 134.29	$ 134.64	$ 136.74	$ 116.60	$ 111.61	$ 114.20	$ 134.87	$ 113.57

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INCOME TAXES (Details)	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective tax rate	35.00%	32.20%

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 52,720	$ 83,041	$ 189,426	$ 245,488
Other Comprehensive Income/(Loss):
Foreign currency translation adjustments	(55,214)	(51,552)	(95,155)	(40,777)
Amortization of cash flow hedge into income, net of tax ($176 and $55, and $284 and $155 for the three- and nine-months ended September 30, 2015 and 2014, respectively)	278	97	458	254
Change in fair value of cash flow hedge, net of tax ($79 and $0, and $2,577 and $47 for the three- and nine-months ended September 30, 2015 and 2014, respectively)	(216)	(159)	(3,994)	(308)
Total Other Comprehensive Loss	(55,152)	(51,614)	(98,691)	(40,831)
Comprehensive (Loss)/Income	(2,432)	31,427	90,735	204,657
Less: Comprehensive Income/(Loss) Attributable to Noncontrolling Interests	1,644	(1,621)	1,392	(390)
Comprehensive (Loss)/Income Attributable to Stericycle, Inc.	$ (4,076)	$ 33,048	$ 89,343	$ 205,047

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ACQUISITIONS

9 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

ACQUISITIONS

ACQUISITIONS

The following table summarizes the locations of our acquisitions for the nine months ended September 30, 2015:

Acquisition Locations	2015
United States	13
Brazil	2
Canada	1
Ireland	1
Mexico	2
Netherlands	1
Romania	4
Republic of Korea	6
Spain	3
Total	33

During the quarter ended March 31, 2015, we completed fifteen acquisitions. Domestically, we acquired 100% of the stock of one regulated waste business and selected assets of three regulated waste businesses. Internationally, in Brazil, we acquired 100% of the stock of two regulated waste businesses. In Ireland, we acquired 100% of the stock of one regulated waste business. In Mexico, we acquired 100% of the stock of two regulated waste businesses. In Romania, we acquired selected assets of two regulated waste businesses. In the Republic of Korea, we acquired selected assets of three regulated waste businesses. In Spain, we acquired selected assets of one regulated waste business.

During the quarter ended June 30, 2015, we completed eight acquisitions. Domestically, we acquired 100% of the stock of one regulated waste business, selected assets of four regulated waste businesses and one communication services business. Internationally, in Canada, we acquired 100% of the stock of one communication services business, and in the Netherlands, we acquired 100% of the stock of one regulated waste business.

During the quarter ended September 30, 2015, we completed ten acquisitions. Domestically we acquired 100% of the stock of one communication services business and selected assets of two regulated waste businesses. Internationally, in Romania, we acquired selected assets of one regulated waste business and 100% of the stock of one regulated waste business. In Spain, we acquired selected assets of two regulated waste businesses. In the Republic of Korea, we acquired selected assets of three regulated waste businesses.

The following table summarizes the aggregate purchase price paid for acquisitions and other adjustments of consideration to be paid for acquisitions during the nine months ended September 30:

In thousands
	Nine Months Ended September 30,
	2015		2014
Cash	$	97,098	$	328,811
Promissory notes	55,793		78,325
Deferred consideration	3,167		6,124
Contingent consideration	12,945		16,495
Total purchase price	$	169,003	$	429,755

For financial reporting purposes, our acquisitions were accounted for using the acquisition method of accounting. These acquisitions resulted in the recognition of goodwill in our financial statements reflecting the premium paid to acquire businesses that we believe are complementary to our existing operations and fit our growth strategy. During the nine months ended September 30, 2015, we recognized a net increase in goodwill of $85.4 million, excluding the effect of foreign currency translation (see Note 9 – Goodwill and Other Intangible Assets). A net increase of $56.6 million was assigned to our United States reportable segment, and a net increase of $28.8 million was assigned to our International reportable segment. Approximately $28 million of the goodwill recognized during the nine months ended September 30, 2015 will be deductible for income taxes.

During the nine months ended September 30, 2015, we recognized a net increase in intangible assets from acquisitions of $70.3 million, excluding the effect of foreign currency translation. The changes include $64.7 million in the estimated fair value of acquired customer relationships with amortizable lives of 15 to 40 years, $1.4 million in permits with indefinite lives, and $4.2 million in tradenames with indefinite lives.

The purchase prices for these acquisitions in excess of acquired tangible assets have been primarily allocated to goodwill and other intangibles and are preliminary, pending completion of certain intangible asset valuations and completion accounts. The following table summarizes the preliminary purchase price allocation for current period acquisitions and other adjustments to purchase price allocations during the nine months ended September 30:

In thousands
	Nine Months Ended September 30,
	2015			2014
Fixed assets	$	13,635		$	127,621
Intangibles	70,282			242,792
Goodwill	85,393			202,391
Accounts receivable	22,475			56,696
Accounts payable	(10,637		)	(32,561		)
Net other liabilities	(4,875		)	(67,564		)
Debt	(4,803		)	(22,097		)
Net deferred tax liabilities	(2,467		)	(70,580		)
Noncontrolling interests	—			(6,943		)
Total purchase price allocation	$	169,003		$	429,755

During the nine months ended September 30, 2015 and 2014, the Company incurred $40.0 million and $10.7 million, respectively, of acquisition related expenses. These expenses are included with "Selling, general and administrative expenses" on our Condensed Consolidated Statements of Income. The results of operations of these acquired businesses have been included in the Condensed Consolidated Statements of Income from the date of the acquisition.

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DEBT - Schedule of Long-Term Debt (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Total debt	$ 1,516,092,000	$ 1,659,215,000
Less: current portion of total debt	106,405,000	131,969,000
Long-term portion of total debt	1,409,687,000	1,527,246,000
Obligations under capital leases
Debt Instrument [Line Items]
Total debt	8,390,000	9,185,000
$1.2 billion senior credit facility weighted average rate 1.51%, due in 2019
Debt Instrument [Line Items]
Total debt	176,387,000	459,975,000
Maximum borrowing capacity of line of credit facility	$ 1,200,000,000.0
Long-term Debt, Weighted Average Interest Rate	1.51%
$1.5 billion term loan facility, due in 2020
Debt Instrument [Line Items]
Total debt	$ 0	0
Maximum borrowing capacity of line of credit facility	1,500,000,000.0
$100 million private placement notes 5.64%, due in 2015
Debt Instrument [Line Items]
Total debt	0	100,000,000
$175 million private placement notes 3.89%, due in 2017
Debt Instrument [Line Items]
Total debt	175,000,000	175,000,000
Long-term debt, face amount	$ 175,000,000.0
Stated interest rate	3.89%
$125 million private placement notes 2.68%, due in 2019
Debt Instrument [Line Items]
Total debt	$ 125,000,000	125,000,000
Long-term debt, face amount	$ 125,000,000.0
Stated interest rate	2.68%
$225 million private placement notes 4.47%, due in 2020
Debt Instrument [Line Items]
Total debt	$ 225,000,000	225,000,000
Long-term debt, face amount	$ 225,000,000.0
Stated interest rate	4.47%
$125 million private placement notes 3.26%, due in 2022
Debt Instrument [Line Items]
Total debt	$ 125,000,000	125,000,000
Long-term debt, face amount	$ 125,000,000.0
Stated interest rate	3.26%
$200 million private placement notes 2.72%, due in 2022
Debt Instrument [Line Items]
Total debt	$ 200,000,000	0
Long-term debt, face amount	$ 200,000,000
Stated interest rate	2.72%
$100 million private placement notes 2.79%, due in 2023
Debt Instrument [Line Items]
Total debt	$ 100,000,000	0
Long-term debt, face amount	$ 100,000,000
Stated interest rate	2.79%
Promissory notes and deferred consideration weighted average rate of 3.74% and weighted average maturity of 3.5 years
Debt Instrument [Line Items]
Total debt	$ 271,568,000	279,590,000
Long-term Debt, Weighted Average Interest Rate	3.74%
Long Term Debt Maturity	3 years 6 months
Foreign bank debt weighted average rate 9.20% and weighted average maturity of 2.3 years
Debt Instrument [Line Items]
Total debt	$ 109,747,000	$ 160,465,000
Long-term Debt, Weighted Average Interest Rate	9.20%
Long Term Debt Maturity	2 years 3 months 18 days

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STOCK BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Expense Resulting from Stock Option Awards, Restricted stock units ("RSU") and ESPP

The following table presents the total stock-based compensation expense resulting from stock option awards, restricted stock units ("RSUs"), and the ESPP included in the Condensed Consolidated Statements of Income:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Cost of revenues – stock option plan	$	24	$	14	$	69	$	42
Selling, general and administrative – stock option plan	4,416		3,600		13,795		11,459
Selling, general and administrative – RSUs	382		319		1,103		948
Selling, general and administrative – ESPP	432		308		1,191		916
Total pre-tax expense	$	5,254	$	4,241	$	16,158	$	13,365

Tax Benefits Related to Stock Compensation

The following table sets forth the tax benefits related to stock compensation:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Tax benefit recognized in Statement of Income	$	1,501	$	1,319	$	5,103	$	3,248
Excess tax benefit of stock options exercised	4,584		3,667		15,483		10,747

Stock Option Activity

Stock option activity for the nine months ended September 30, 2015, is summarized as follows:

	Number of Options		Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Life	Total Aggregate Intrinsic Value
					(in years)	(in thousands)
Outstanding at beginning of year	5,377,857		$	80.88
Granted	959,551		131.20
Exercised	(791,434	)	67.83
Forfeited	(138,249	)	108.71
Canceled or expired	(1,876	)	76.08
Outstanding at September 30, 2015	5,405,849		$	91.02	5.89	$	261,110
Exercisable at September 30, 2015	2,837,919		$	72.66	4.95	$	189,143
Vested and expected to vest at September 30, 2015	5,183,104		$	89.90

Intrinsic Value of Options Exercised

The following table sets forth the total intrinsic value of options exercised:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Total intrinsic value of options exercised	$	14,888	$	14,375	$	54,538	$	40,893

Assumptions used in Black-Scholes Model

The estimated fair value of stock options at the time of the grant using the Black-Scholes option pricing model was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Stock options granted (shares)	24,275			11,555			959,551			975,038
Weighted average fair value at grant date (per share)	$	23.88		$	21.32		$	22.83		$	21.30
Assumptions:
Expected term (in years)	4.79			4.78			4.79			4.75
Expected volatility	16.01		%	16.98		%	16.56		%	17.39		%
Expected dividend yield	—		%	—		%	—		%	—		%
Risk free interest rate	1.49		%	1.59		%	1.44		%	1.52		%

Restricted Stock Units Activity

A summary of the status of our non-vested RSUs and changes during the nine months ended September 30, 2015, are as follows:

	Number of Units		Weighted Average Grant Date Fair Value		Total Aggregate Intrinsic Value
					(in thousands)
Non-vested at beginning of year	63,600		$	96.04
Granted	10,624		130.40
Vested and released	—		—
Forfeited	(4,273	)	101.20
Non-vested at September 30, 2015	69,951		$	100.94	$	9,745

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FAIR VALUE MEASUREMENTS - Fair Value Measurements (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets:
Cash and cash equivalents	$ 32,883	$ 22,236
Short-term investments	636,288	380
Derivative financial instruments	1,111	515
Total assets	670,282	23,131
Liabilities:
Contingent consideration	25,835	19,941
Derivative financial instruments		2,408
Total liabilities	25,835	22,349
Level 1 Inputs [Member]
Assets:
Cash and cash equivalents	32,883	22,236
Short-term investments	636,288	380
Derivative financial instruments	0	0
Total assets	669,171	22,616
Liabilities:
Contingent consideration	0	0
Derivative financial instruments		0
Total liabilities	0	0
Level 2 Inputs [Member]
Assets:
Cash and cash equivalents	0	0
Short-term investments	0	0
Derivative financial instruments	1,111	515
Total assets	1,111	515
Liabilities:
Contingent consideration	0	0
Derivative financial instruments		2,408
Total liabilities	0	2,408
Level 3 Inputs [Member]
Assets:
Cash and cash equivalents	0	0
Short-term investments	0	0
Derivative financial instruments	0	0
Total assets	0	0
Liabilities:
Contingent consideration	25,835	19,941
Derivative financial instruments		0
Total liabilities	$ 25,835	$ 19,941

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GEOGRAPHIC INFORMATION

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

GEOGRAPHIC INFORMATION

GEOGRAPHIC INFORMATION

Management has determined that we have two reportable segments: United States and International. Revenues are attributed to countries based on the location of customers. The same accounting principles and critical accounting policies are used in the preparation of the financial statements for both reportable segments.

We have retroactively reclassified immaterial amounts related to Puerto Rico from the United States segment to the International segment.

Detailed information for our United States reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Regulated and compliance solutions revenues	$	493,234	$	452,106	$	1,435,407	$	1,246,381
Recall and returns solutions revenues	30,274		16,610		78,531		64,395
Total revenues	523,508		468,716		1,513,938		1,310,776
Net interest expense	11,110		11,538		32,254		33,804
Income before income taxes	78,200		108,575		261,005		326,215
Income taxes	27,924		34,243		96,395		114,902
Net income attributable to Stericycle, Inc.	$	50,276	$	74,332	$	164,610	$	211,313
Depreciation and amortization	$	16,905	$	16,822	$	49,400	$	45,354

Detailed information for our International reportable segment is as follows:

In thousands
	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015			2014
Regulated and compliance solutions revenues	$	195,088	$	199,161	$	583,666		$	567,878
Net interest expense	6,268		5,079		20,112			14,079
Income before income taxes	2,924		13,867		19,746			41,906
Income taxes	480		5,158		(5,070		)	7,731
Net income	2,444		8,709		24,816			34,175
Less: net income attributable to noncontrolling interests	457		196		1,256			1,558
Net income attributable to Stericycle, Inc.	$	1,987	$	8,513	$	23,560		$	32,617
Depreciation and amortization	$	10,585	$	11,943	$	33,033		$	34,248