10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 31, 2016

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 001-35108

SERVICESOURCE INTERNATIONAL, INC.

(Exact name of registrant as specified in our charter)

Delaware	No. 81-0578975
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
760 Market Street, 4th Floor San Francisco, California	94102
(Address of Principal Executive Offices)	(Zip Code)

(415) 901-6030

(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 such 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 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 definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	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

Indicate number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practical date:

Class	Outstanding as of April 29, 2016
Common Stock	85,376,414

SERVICESOURCE INTERNATIONAL, INC.

Form 10-Q

INDEX

	Page No.
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)	3
Condensed Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015	3
Condensed Consolidated Statements of Operations for the three months ended March 31, 2016 and 2015	4
Condensed Consolidated Statements of Comprehensive Loss for the three months ended March 31, 2016 and 2015	5
Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2016 and 2015	6
Notes to Unaudited Condensed Consolidated Financial Statements	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3. Quantitative and Qualitative Disclosures About Market Risk	29
Item 4. Controls and Procedures	30
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	31
Item 1A. Risk Factors	31
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	50
Item 3. Defaults Upon Senior Securities	51
Item 4. Mine Safety Disclosures	51
Item 5. Other Information	51
Item 6. Exhibits	51
Signatures	52
Exhibit Index	53

2

PART I FINANCIAL INFORMATION

Item 1. Financial Statements

SERVICESOURCE INTERNATIONAL, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except per share amounts)

(Unaudited)

	March 31, 2016			December 31, 2015
Assets
Current assets:
Cash and cash equivalents	$	61,394		$	72,334
Short-term investments	136,917			136,378
Accounts receivable, net	55,044			56,563
Deferred income taxes	97			97
Prepaid expenses and other	7,158			8,167
Total current assets	260,610			273,539
Property and equipment, net	29,293			25,903
Deferred income taxes, net of current portion	662			1,759
Goodwill and intangibles, net	9,066			9,444
Other assets, net	7,075			6,919
Total assets	$	306,706		$	317,564
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	2,746		$	1,067
Accrued taxes	692			1,112
Accrued compensation and benefits	17,872			22,116
Deferred revenue	5,886			5,770
Accrued expenses	7,636			4,716
Other current liabilities	1,500			2,327
Total current liabilities	36,332			37,108
Obligations under capital leases, net of current portion	173			198
Convertible notes, net	128,155			126,051
Other long-term liabilities	4,083			4,113
Total liabilities	168,743			167,470
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock; $0.0001 par value; 1,000,000 shares authorized; 85,473 shares issued and 85,352 shares outstanding as of March 31, 2016; 86,893 shares issued and 86,772 shares outstanding as of December 31, 2015	8			8
Treasury stock	(441		)	(441		)
Additional paid-in capital	328,247			331,922
Accumulated deficit	(190,961		)	(181,822		)
Accumulated other comprehensive income	1,110			427
Total stockholders’ equity	137,963			150,094
Total liabilities and stockholders’ equity	$	306,706		$	317,564

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

3

SERVICESOURCE INTERNATIONAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

(Unaudited)

	Three Months Ended March 31,
	2016			2015
Net revenue	$	59,750		$	66,197
Cost of revenue	41,434			45,815
Gross profit	18,316			20,382
Operating expenses:
Sales and marketing	10,454			10,835
Research and development	2,163			4,822
General and administrative	12,043			12,165
Restructuring and other	—			751
Total operating expenses	24,660			28,573
Loss from operations	(6,344		)	(8,191		)
Interest expense and other, net	(1,509		)	(1,845		)
Loss before income taxes	(7,853		)	(10,036		)
Income tax provision	1,288			134
Net loss	$	(9,141	)	$	(10,170	)
Net loss per share, basic and diluted	$	(0.11	)	$	(0.12	)
Weighted average common shares outstanding, basic and diluted	86,081			84,252

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

4

SERVICESOURCE INTERNATIONAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)

(Unaudited)

	Three Months Ended March 31,
	2016			2015
Net loss	$	(9,141	)	$	(10,170	)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	765			(247		)
Unrealized gain on short-term investments, net of tax	345			375
Other comprehensive income (loss), net of tax	1,110			128
Total comprehensive loss	$	(8,031	)	$	(10,042	)

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

5

SERVICESOURCE INTERNATIONAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	Three Months Ended March 31,
	2016			2015
Cash flows from operating activities
Net loss	$	(9,141	)	$	(10,170	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	3,737			3,500
Amortization of debt discount and issuance costs	2,103			1,924
Accretion of premium on short-term investments and other	405			(37		)
Deferred income taxes	1,097			8
Stock-based compensation	2,859			4,568
Restructuring and other	—			(689		)
Changes in operating assets and liabilities:
Accounts receivable, net	2,029			4,075
Deferred revenue	85			463
Prepaid expenses and other	983			92
Accounts payable	1,702			485
Accrued taxes	(434		)	(781		)
Accrued compensation and benefits	(4,427		)	(1,870		)
Accrued expenses	1,584			(3,675		)
Other liabilities	(920		)	(359		)
Net cash provided by (used in) operating activities	1,662			(2,466		)
Cash flows from investing activities
Acquisition of property and equipment	(5,279		)	(2,669		)
Restricted cash	—			(1,244		)
Purchases of short-term investments	(30,999		)	(17,035		)
Sales of short-term investments	31,155			16,630
Net cash used in investing activities	(5,123		)	(4,318		)
Cash flows from financing activities
Repayment on capital leases obligations	(66		)	(45		)
Repurchase of common stock	(7,260		)	—
Proceeds from common stock issuances	691			648
Net cash (used in) provided by financing activities	(6,635		)	603
Net decrease in cash and cash equivalents	(10,096		)	(6,181		)
Effect of exchange rate changes on cash and cash equivalents	(844		)	1,034
Cash and cash equivalents at beginning of period	72,334			90,382
Cash and cash equivalents at end of period	$	61,394		$	85,235

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

6

SERVICESOURCE INTERNATIONAL, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note 1 — Description of Business and Basis of Presentation

ServiceSource International, Inc. (together with its subsidiaries, the “Company”) is a global leader in customer and revenue lifecycle solutions that power enterprise revenue relationships, partnering with B2B technology and technology-enabled companies to optimize maintenance, support and subscription revenue streams, while also improving end customer relationships and loyalty. The Company delivers these results via dedicated service teams and integral cloud-based technologies, leveraging benchmarks and best-practices derived from its rich database of service and renewal behavior. By integrating managed services, cloud software and data, the Company provides its clients with insights into their end customers' businesses, end-to-end management and optimization of the service-contract renewals process and customer success activities, including data management, quoting, selling and recurring revenue business intelligence. The Company receives commissions from its clients based on renewal sales that the Company generates on their behalf under a pay-for-performance or flat-rate model. In addition, the Company also provides a purpose-built cloud application to maximize the renewal of subscriptions, maintenance and support contracts and receives subscription fees from its clients for the SaaS product. The Company’s corporate headquarters are located in San Francisco, California. The Company has additional U.S. offices in Colorado, Tennessee and Washington, and international offices in Bulgaria, Ireland, Japan, Malaysia, the Philippines, Singapore and the United Kingdom.

The accompanying unaudited interim condensed consolidated financial statements (“condensed consolidated financial statements”) include the accounts of ServiceSource International, Inc. and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.

These condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP” or “GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X, without audit. Accordingly, they do not include all of the information required by U.S. GAAP for annual financial statements. The unaudited condensed consolidated balance sheet as of December 31, 2015 has been derived from the Company's audited annual consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the Securities and Exchange Commission ("SEC") on March 8, 2016. These condensed consolidated financial statements and accompanying notes should be read in conjunction with our annual consolidated financial statements and the notes thereto for the year ended December 31, 2015, included in our Annual Report on Form 10-K.

In the opinion of management, these condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments, management considers necessary for a fair statement of the Company's financial position, operating results, and cash flows for the interim periods presented. Preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Also, the results for the interim periods are not necessarily indicative of results for the entire year.

The Company’s Chief Executive Officer ("CEO") is its chief operating decision maker. The CEO historically managed the Company as two reportable segments: Managed Services and Cloud and Business Intelligence ("CBI") based on the discrete financial information available for each segment.  However, during the second half of 2015, the Company began implementing a series of actions to emphasize a one-company, single go-to-market strategy for its services offering that resulted in the reorganization of its CBI personnel and sales team delivery structure. The objective of these actions was to more closely integrate and support the Managed Services organization with the Company’s cloud technologies and to eliminate new stand-alone CBI cloud offerings. Further, due to this reorganization and shift to a single go-to-market strategy, discrete cost information was no longer separately available for the former CBI segment. Consequently, as of the first quarter of 2016, the CEO manages and allocates resources on a company-wide basis as a single segment that is focused on service offerings which integrate data, processes and cloud technologies.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standard Board ("FASB") issued Accounting Standard Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in the FASB's Accounting Standards Codification ("ASC") 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including

7

significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In July 2015, the FASB approved a one year deferral of the effective date to December 15, 2017, and early application would be permitted, but not before the original effective date of December 15, 2016, so the effective date will be the first quarter of fiscal year 2018 using one of two retrospective application methods. The Company is currently evaluating the impact ASU No. 2014-09 will have on its consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal Use Software, which provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. ASU No. 2015-05 is effective for the Company in fiscal year 2016. An entity can elect to adopt the amendments either (1) prospectively to all arrangements entered into or materially modified after the effective date or (2) retrospectively. The Company has historically accounted for its cloud computing arrangements as a service contract. Consequently, adoption of ASU No. 2015-03 had no impact on the Company's consolidated financial statements.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires that deferred tax assets and liabilities to be classified as noncurrent in the consolidated balance sheet. The standard will be effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for financial statements that have not been previously issued. The standard may be applied either prospectively to all deferred tax assets and liabilities or retrospectively to all periods presented. The Company is currently evaluating the impact that adoption of ASU No. 2015-17 will have on its consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02 Leases (Topic 842). This standard requires entities that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2018. The guidance is required to be applied by the modified retrospective transition approach. Early adoption is permitted. The Company is currently assessing the impact of the adoption of this authoritative guidance on its consolidated financial statements.    

In March 2016, the FASB issued ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting". This standard simplifies and clarifies certain aspects of share-based payment accounting and presentation. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2016 with early adoption permitted. The Company is currently assessing the impact that adoption of ASU 2016-09 will have on its consolidated financial statements.

Reclassifications

Amounts shown in Other assets, net, caption in the Consolidated Balance Sheet as of December 31, 2015 have been reclassified to Convertible notes, net, to reflect the current period presentation as a result of the adoption of ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Cost, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. See Note 6 - Debt.

Note 2 — Cash, Cash Equivalents and Short-Term Investments

Cash equivalents consist of highly liquid fixed-income investments with original maturities of three months or less at the time of purchase, including money market funds. The Company has cash and cash equivalents held on its behalf by a third party of $0.5 million and $0.8 million as of March 31, 2016 and December 31, 2015, respectively. Short-term investments consist of readily marketable securities with a remaining maturity of more than three months from time of purchase. The Company classifies all of its cash equivalents and short-term investments as “available for sale,” as these investments are free of trading restrictions. These marketable securities are carried at fair value, with the unrealized gains and losses, net of tax, reported as accumulated other comprehensive income and included as a separate component of stockholders’ equity. Gains and losses are recognized when realized. When the Company determines that other-than-temporary declines in fair value have occurred, the amount of the decline that is related to a credit loss is recognized in earnings. Gains and losses are determined using the specific identification method. The Company’s realized gains and losses in the three months ended March 31, 2016 and 2015 were insignificant.

Cash and cash equivalents and short-term investments consisted of the following as of March 31, 2016 and December 31, 2015 (in thousands):

8

March 31, 2016

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	60,173	$	—	$	—		$	60,173
Cash equivalents:
Money market mutual funds	1,221		—		—			1,221
Total cash and cash equivalents	61,394		—		—			61,394
Short-term investments:
Corporate bonds	54,782		134		(92		)	54,824
U.S. agency securities	36,286		159		—			36,445
Asset-backed securities	28,060		44		(12		)	28,092
U.S. Treasury securities	17,444		112		—			17,556
Total short-term investments	136,572		449		(104		)	136,917
Cash, cash equivalents and short-term investments	$	197,966	$	449	$	(104	)	$	198,311

December 31, 2015

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	72,105	$	—	$	—		$	72,105
Cash equivalents:
Money market mutual funds	229		—		—			229
Total cash and cash equivalents	72,334		—		—			72,334
Short-term investments:
Corporate bonds	54,434		—		(389		)	54,045
U.S. agency securities	36,010		—		(187		)	35,823
Asset-backed securities	30,665		—		(132		)	30,533
U.S. Treasury securities	16,024		—		(47		)	15,977
Total short-term investments	137,133		—		(755		)	136,378
Cash, cash equivalents and short-term investments	$	209,467	$	—	$	(755	)	$	208,712

The following table summarizes the cost and estimated fair value of short-term fixed income securities classified as short-term investments based on stated maturities as of March 31, 2016 (in thousands):

	Amortized Cost		Estimated Fair Value
Less than 1 year	$	15,655	$	15,648
Due in 1 to 3 years	122,138		122,490
Total	$	137,793	$	138,138

As of March 31, 2016, the Company did not consider any of its investments to be other-than-temporarily impaired.

Note 3 — Fair Value of Financial Instruments

The Company measures certain financial instruments at fair value on a recurring basis. The Company uses a three-tier fair value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

9

Level 1 valuations are based on quoted prices in active markets for identical assets or liabilities.

Level 2 valuations are based on inputs that are observable, either directly or indirectly, other than quoted prices included within Level 1. Such inputs used in determining fair value for Level 2 valuations include quoted prices in active markets for similar assets or liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, 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 valuations are based on information that is unobservable and significant to the overall fair value measurement.

All of the Company’s cash equivalents and short-term investments are classified within Level 1 or Level 2.

The following table presents information about the Company’s financial instruments that are measured at fair value as of March 31, 2016 and indicates the fair value hierarchy of the valuation (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	1,221	$	1,221	$	—
Total cash equivalents	1,221		1,221		—
Short-term investments:
Corporate bonds	54,824		—		54,824
U.S. agency securities	36,445		—		36,445
Asset-backed securities	28,092		—		28,092
U.S. Treasury securities	17,556		—		17,556
Total short-term investments	136,917		—		136,917
Cash equivalents and short-term investments	$	138,138	$	1,221	$	136,917

The Company has restricted cash of $1.2 million within Other assets as of March 31, 2016 and December 31, 2015. The restricted cash is classified within Level 1.

The following table presents information about the Company’s financial instruments that are measured at fair value as of December 31, 2015 and indicates the fair value hierarchy of the valuation (in thousands):

10

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	229	$	229	$	—
Total cash equivalents	229		229		—
Short-term investments:
Corporate bonds	54,045		—		54,045
U.S. agency securities	35,823		—		35,823
Asset-backed securities	30,533		—		30,533
U.S. Treasury securities	15,977		—		15,977
Total short-term investments	136,378		—		136,378
Cash equivalents and short-term investments	$	136,607	$	229	$	136,378

The convertible notes issued by the Company in August 2013 are shown on the accompanying consolidated balance sheets at their original issuance value, net of unamortized discount, and are not marked to market each period. The approximate fair value of the convertible notes as of March 31, 2016 and December 31, 2015 was $118.9 million and $126.0 million, respectively. The fair value of the convertible notes was determined using quoted market prices for similar securities, which, due to limited trading activity, are considered Level 2 in the fair value hierarchy.

The Company did not have any other financial instruments or long-term debt measured at fair value as of March 31, 2016 and December 31, 2015.

Note 4 — Other Current Liabilities

Other current liabilities balances were comprised of the following (in thousands):

	March 31, 2016		December 31, 2015
Accrued Interest - Convertible Notes	$	375	$	948
Deferred Rent	782		738
ESPP Withholding	343		641
Total	$	1,500	$	2,327

Note 5 — Credit Facility and Capital Leases

Letter of Credit

On February 3, 2015, the Company issued a $1.2 million letter of credit in connection with a lease for a new San Francisco facility. The letter of credit is secured by $1.2 million of a money market account which is classified as restricted cash on the accompanying condensed consolidated balance sheets.

Capital Leases

The Company has capital lease agreements that are collateralized by the underlying property and equipment and expire through September 2019. The weighted-average imputed interest rates for the capital lease agreements were 3.6% and 5.7% at March 31, 2016 and 2015, respectively.

Future minimum annual payments under capital lease obligations as of March 31, 2016 were as follows (in thousands):

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	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	72
2017	67
2018	69
2019	54
2020	—
Total	$	262

Note 6 — Debt

Senior Convertible Notes

In August 2013, the Company issued senior convertible notes (the “Notes”) in exchange for gross proceeds of $150.0 million.

The Notes are governed by an Indenture, dated August 13, 2013 (the “Indenture”), between the Company and Wells Fargo Bank, National Association, as trustee. The Notes will mature on August 1, 2018, unless earlier repurchased or converted, and bear interest at a rate of 1.50% per year payable semi-annually in arrears on February 1 and August 1, beginning February 1, 2014.

The Notes are convertible at an initial conversion rate of 61.6770 of common stock per $1,000 principal amount of Notes, which represents an initial conversion price of approximately $16.21 per share of common stock, subject to anti-dilution adjustments upon certain specified events as defined in the Indenture. Upon conversion, the Notes will be settled in cash, shares of the Company’s common stock, or any combination thereof, at the Company’s option.

Prior to February 1, 2018, the Notes are convertible only upon the following circumstances:

• during any calendar quarter commencing after December 31, 2013, (and only during such calendar quarter), if for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter, the last reported sale price of common stock on such trading day is greater than or equal to 130% of the applicable conversion price on such trading day;

• during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of the Notes for each trading day of that five consecutive trading day period was less than 98% of the product of the last reported sale price of common stock and the applicable conversion rate on each such trading day; or

• upon the occurrence of specified corporate events described in the Indenture.

Holders of the Notes may convert their Notes at any time on or after February 1, 2018, until the close of business on the second schedule trading day immediately preceding the maturity date, regardless of the foregoing circumstances.

The holders of the Notes may require the Company to repurchase all or a portion of their Notes at a cash repurchase price equal to 100% of the principal amount of the Notes being repurchased, plus accrued and unpaid interest, if any, upon a fundamental change as defined in the Indenture. In addition, upon certain events of default as defined in the Indenture, the trustee, or the holders of at least 25% in principal amount of the outstanding Notes may declare 100% of the principal amount of the Notes, plus accrued and unpaid interest, if any, on all the Notes to be due and payable. In case of certain events of bankruptcy, insolvency or reorganization involving the Company, 100% of the principal of and accrued and unpaid interest on the Notes will automatically become due and payable. The Notes were not subject to repurchase at March 31, 2016.

To account for the Notes at issuance, the Company separated the Notes into debt and equity components pursuant to the accounting standards for convertible debt instruments that may be fully or partially settled in cash upon conversion. The fair value of debt component was estimated using an interest rate for nonconvertible debt, with terms similar to the Notes, excluding the conversion feature. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The excess of the principal amount of the Notes over the fair value of the debt component was recorded as a debt discount and a corresponding increase in additional paid-in capital. The debt discount is accreted to interest expense over the term of the Notes using the interest method. The amount recorded to additional paid-in capital is not to be remeasured as long as it continues to meet the conditions of equity classification. Upon issuance of the $150.0 million of Notes, the Company recorded $111.5 million to debt and $38.5 million to additional paid-in capital.

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The Company incurred transaction costs of approximately $4.9 million related to the issuance of the Notes. In accounting for these costs, the Company allocated the costs to the debt and equity components in proportion to the allocation of proceeds from the issuance of the Notes to such components. Transaction costs allocated to the debt component of $3.6 million were recorded as a deferred asset in other assets, net, and amortized to interest expense over the term of the Notes. The transaction costs allocated to the equity component of $1.3 million were recorded to additional paid-in capital.

The net carrying amount of the liability component of the Notes consists of the following (in thousands):

	March 31, 2016			December 31, 2015
Principal amount	$	150,000		$	150,000
Unamortized debt discount	(19,984		)	(21,908		)
Unamortized debt issuance costs	(1,861		)	(2,041		)
Net carrying amount	$	128,155		$	126,051

The following table presents the interest expense recognized related to the Notes (in thousands):

	Three Months Ended March 31,
	2016		2015
Contractual interest expense at 1.5% per annum	$	563	$	563
Amortization of debt issuance costs	179		164
Accretion of debt discount	1,924		1,755
Total	$	2,666	$	2,482

The net proceeds from the Notes were approximately $145.1 million after payment of the initial purchasers' discount and offering expense. The Company used approximately $31.4 million of the net proceeds from the Notes to pay the cost of the Note Hedges described below, which was partially offset by $21.8 million of the proceeds from the Company's sale of the Warrants also described below.

Note Hedges

Concurrent with the issuance of the Notes, the Company entered into note hedges (“Note Hedges”) with certain bank counterparties, with respect to its common stock. The Company paid $31.4 million for the Note Hedges. The Note Hedges cover approximately 9.25 million shares of the Company's common stock at a strike price of $16.21 per share. The Note Hedges will expire upon the maturity of the Notes. The Note Hedges are intended to reduce the potential dilution to the Company's common stock upon conversion of the Notes and/or offset the cash payment in excess of the principal amount of the Notes the Company is required to make in the event that the market value per share of the Company's common stock at the time of exercise is greater than the conversion price of the Notes.

Warrants

Separately, the Company entered into warrant transactions, whereby it sold warrants to the same bank counterparties as the Note Hedges to acquire approximately 9.25 million shares of the Company's common stock at an initial strike price of $21.02 per share (“Warrants”), subject to anti-dilution adjustments. The Company received proceeds of approximately $21.8 million from the sale of the Warrants. If the fair value per share of the Company's common stock exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on earnings per share, unless the Company elects, subject to certain conditions, to settle the Warrants in cash.

The amounts paid and received for the Note Hedges and the Warrants have been recorded in additional paid-in capital. The fair value of the Note Hedges and the Warrants are not remeasured through earnings each reporting period.

Note 7 — Commitments and Contingencies

Operating Leases

The Company leases its office space and certain equipment under noncancelable operating lease agreements with various expiration dates through November 30, 2022. Rent expense for the three months ended March 31, 2016 and 2015 was $2.6 million and $2.2 million, respectively. The Company recognizes rent expense on a straight-line basis over the lease period and accrues for rent expense incurred but not paid.

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In April 2016, the Company signed a 6-year office lease expiring in July 2022, for a new international sales center in Singapore to occupy 17,626 square feet. The total minimum lease payments are estimated to be approximately $4.8 million over the lease term.

Future annual minimum lease payments under all noncancelable operating leases as of March 31, 2016 were as follows (in thousands):

	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	7,632
2017	10,037
2018	9,420
2019	8,065
2020	6,888
Thereafter	10,162
Total	$	52,204

Litigation

On July 8, 2015, a single plaintiff filed a putative securities class action lawsuit, Weller v. ServiceSource International, Inc. et al., in the U.S. District Court for the Northern District of California (the “Weller Lawsuit”) against the Company and the Company’s former Chief Executive Officer. The Weller Lawsuit was brought on behalf of purchasers of Company stock during the period January 22, 2014 through May 1, 2014, and alleges violations under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act").   In connection with the mandatory lead plaintiff appointment process under the Private Securities Litigation Reform Act ("PSLRA"), various law firms issued press releases between July 2015 and September 2015 to search for additional shareholders that would be willing to serve as lead plaintiffs in this lawsuit.  This solicitation period ended on September 29, 2015 and no other shareholders came forward, leaving only the named plaintiff as the sole shareholder seeking to be appointed lead plaintiff. The court appointed Weller a lead plaintiff on October 21, 2015. At this time, no motion to certify a class has been filed. The Company believes that the claims are meritless, and will vigorously defend itself against such claims.

From time to time, the Company may be subject to other litigation or threatened litigation arising in the ordinary course of our business. Although the results of litigation and claims cannot be predicted with certainty, the Company is currently not aware of any litigation or threats of litigation in which the final outcome could have a material adverse effect on it's business, operating results, financial position, or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors. The Company records a contingent liability when it is probable that a loss has been incurred and the amount is reasonably estimable in accordance with accounting for contingencies.

Note 8 - Share Repurchase Program, Stock-Based Compensation and ESPP

In August 2015, the Board authorized a stock repurchase program ("the program") with a maximum authorization to repurchase up to $30.0 million worth of common stock of the Company. The program expires in August 2017. The aggregate amount available under the program was approximately $21.5 million as of March 31, 2016. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Exchange Act. The Company cash settles with the program broker periodically and reflects any unsettled amounts as a current liability at each period end.

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The following shares of common stock were repurchased under the above-described repurchase plan:

	Number of Shares (in thousands)	Weighted Average Repurchase Price Per Share		Amount (includes commissions) (in thousands)
2016:
First quarter	1,835	$	3.96	$	7,260
2015:
Fourth quarter	136	$	4.09	$	557
Third Quarter	159	$	4.12	655
Total common stock repurchases	2,130			$	8,472

The following table summarizes the consolidated stock-based compensation expense included in the condensed consolidated statements of operations (in thousands):

	Three Months Ended March 31,
	2016		2015
Cost of revenue	$	468	$	836
Sales and marketing	862		931
Research and development	197		548
General and administrative	1,332		2,253
Total stock-based compensation	$	2,859	$	4,568

The above table does not include $0.2 million of capitalized stock-based compensation related to internal-use software during the three months ended March 31, 2016. There was no capitalized stock-based compensation related to internal-use software during the three months ended March 31, 2015.

Determining Fair Value of Stock Awards

The Company estimates the fair value of stock option awards at the date of grant using the Black-Scholes option-pricing model. Options are granted with an exercise price equal to the fair value of the common stock as of the date of grant. Compensation expense is amortized net of estimated forfeitures on a straight-line basis over the requisite service period of the options, which is generally four years. Restricted stock, upon vesting, entitles the holder to one share of common stock for each restricted stock unit or award, and has a purchase price of $0.0001 per share, which is equal to the par value of the Company’s common stock, and vests over four years. The fair value of the restricted stock is based on the Company’s closing stock price on the date of grant, and compensation expense net of estimated forfeitures is recognized on a straight-line basis over the vesting period.

We estimate the fair value of stock options granted using the Black-Scholes option-pricing model. This model requires us to make estimates and assumptions including, among other things, estimates regarding the length of time an employee will retain vested stock options before exercising them, the estimated volatility of our common stock price using peer company volatility and the number of options that will be forfeited prior to vesting. Prior to January 1, 2016, the expected stock price volatility assumption was determined by examining the historical volatilities for industry peers. Effective January 1, 2016, the stock price volatility assumption was determined by examining a blend of the historical volatilities for industry peers and the trading history for the Company’s common stock.

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Option and restricted stock activity under the 2011 Plan for the three months ended March 31, 2016 was as follows (shares in thousands):

			Options Outstanding				Restricted Stock Outstanding
	Shares and Units Available for Grant		Number of Shares		Weighted- Average Exercise Price		Number of Shares
Outstanding — December 31, 2015	7,055		10,616		$	4.79	4,552
Additional shares reserved under the 2011 equity incentive plan	3,478		—		—		—
Granted	(476	)	302		3.90		174
Options exercised/ Restricted stock released			(24	)	3.93		(242	)
RSU shares withheld for taxes	13		—		—		13
Canceled/Forfeited	762		(312	)	5.42		(450	)
Outstanding — March 31, 2016	10,832		10,582		$	4.75	4,047

The weighted average grant-date fair value of employee stock options granted during the three months ended March 31, 2016 and 2015 was $2.08 and $1.12 per share, respectively. The unamortized grant date fair value of both stock options and restricted stock awards totaled $18.2 million at March 31, 2016.

Employee Stock Purchase Plan

The Company’s 2011 Employee Stock Purchase Plan (the “ESPP”) is intended to qualify under Section 423 of the Internal Revenue Code of 1986. Under the ESPP, employees are eligible to purchase common stock through payroll deductions of up to 10% of their eligible compensation, subject to any plan limitations. The purchase price of the shares on each purchase date is equal to 85% of the lower of the fair market value of the Company’s common stock on the first and last trading days of each twelve month offering period.

The ESPP provides that additional shares are reserved under the plan annually on the first day of each fiscal year in an amount equal to the lesser of (i) 1.5 million shares, (ii) one percent of the outstanding shares of common stock on the last day of the immediately preceding fiscal year, or (iii) an amount determined by the board of directors and/or the compensation committee of the board of directors. On January 1, 2016, approximately 0.9 million additional shares were reserved under the ESPP pursuant to the plan's automatic increase provision. As of March 31, 2016, 1.6 million total shares had been issued under the ESPP and 3.3 million shares were available for future issuance.

Note 9 — Income Taxes

The Company is subject to taxation in the United States and various state and foreign jurisdictions. Earnings from non-U.S. activities are subject to local country income tax. The Company computes its quarterly income tax provision by using a forecasted annual effective tax rate and adjusts for any discrete items arising during the quarter. The primary difference between the effective tax rate and the federal statutory tax rate relates to the valuation allowances on the Company’s net operating losses and foreign tax rate differences. The tax years 2010 through 2015 remain subject to examination by federal, state and foreign tax authorities. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely outside the U.S. In November 2015, the Philippine Economic Zone Authority granted a four year tax holiday to the Company's Philippine affiliate, commencing with its fiscal year, beginning January 1, 2016. The aggregate dollar and earnings per share impact is not material.

Consistent with the Company’s practice in prior periods for assessing realization of deferred tax assets, management believes that based on the available objective evidence it is more likely than not that the tax benefits of the U.S. and Singapore losses will not be realized. As a result, the Company provided a valuation allowance for all U.S. federal net deferred tax assets, for all Singapore net deferred tax assets, and for substantially all of the Company’s state deferred tax assets other than those as described below.

The Company continues to record valuation allowance to reflect only the portion of the state deferred tax asset that is more likely than not to be realized. Note that changes in tax laws and rates may affect other deferred tax assets and liabilities

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recorded in the future. These changes are accounted for in the period of enactment and thus are reflected in the Company’s March 31, 2016 financial results.

For the first quarter of 2016, the Company recorded income tax expense of $1.3 million. This amount primarily represents $0.7 million of anticipated taxes in jurisdictions where the Company has profitable operations, including certain U.S. states and foreign jurisdictions and approximately $0.6 million related to an increase in valuation allowance which reflects the portion of certain state deferred tax assets that are more likely than not to be realized. No benefit was provided for losses incurred in U.S. and Singapore because those losses are offset by a full valuation allowance.

The gross amount of the Company's unrecognized tax benefits was $0.9 million as of March 31, 2016 and December 31, 2015, none of which, if recognized, would affect the Company’s effective tax rate.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) should be read in conjunction with our condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and with our Annual Report on Form 10-K for the year ended December 31, 2015.

This Quarterly Report on Form 10-Q contains “forward looking statements” that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward looking statements. These forward looking statements include, but are not limited to, statements related to changes in market conditions that impact our ability to generate service revenue on behalf of our clients; errors in estimates as to the service revenue we can generate for our clients; our ability to attract new clients and retain existing clients; risks associated with material defects or errors in our software or the effect of data security breaches; our ability to adapt our solution to changes in the market or new competition; our ability to improve our clients’ renewal rates, margins and profitability; our Opportunity Under Management; our ability to increase our revenue and contribution margin over time from new and existing customers, including as a result of sales of our next generation technology platform, Renew OnDemand, on a stand-alone subscription basis; our ability to implement Renew OnDemand, ServiceSource Revenue Analytics, ServiceSource Customer Success or our other SaaS technologies; our strategy with respect to our business services and SaaS businesses, cloud technologies and managed services and cost allocation and management efforts; the potential effect of mergers and acquisitions on our client base; business strategies and new sales initiatives; technology development; protection of our intellectual property; investment and financing plans; liquidity, our leverage consisting of convertible notes and related matters concerning our note hedges and warrants; our stock repurchase program; our competitive position; the effects of competition; industry environment; potential growth opportunities; our expected benefits from the acquisition of Scout Analytics; and our expected benefits from international expansion; our expected benefits from integrating managed services, cloud software and data. Forward looking statements are also often identified by the use of words such as, but not limited to, “anticipate,” “believe,” “can,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “seek,” “should,” “target,” “will,” “would,” and similar expressions or variations intended to identify forward looking statements. These statements are based on the beliefs and assumptions of our management based on information currently available to management. Such forward looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in the section of this Quarterly Report on Form 10-Q titled “Risk Factors.” Furthermore, such forward looking statements speak only as of the date of this report. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

All dollar amounts expressed as numbers in this MD&A are in millions unless otherwise noted.

OVERVIEW

ServiceSource International, Inc. (NASDAQ: SREV) is the global leader in customer and revenue lifecycle solutions that power enterprise revenue relationships. Based on the science of Revenue Lifecycle Management ("RLM"), ServiceSource provides some of the world's leading business to business ("B2B") companies with expert, technology-enabled services and solutions that are proven to grow and retain revenue from existing customers, directly or through a channel. With a holistic approach to managing the entire revenue lifecycle (which includes onboarding, client success, quoting, up-sell, cross-sell, warranty services and renewals), ServiceSource solutions help drive improved customer adoption, expansion and retention for our B2B clients.

Our solutions are comprised of a unique and precise mix of managed services, a purpose-built RLM technology platform and best-practice processes developed over more than 15 years of exclusive focus on revenue retention, revenue growth and customer success. With the experience of nearly $8.4 billion in recurring revenue sold in 2015 and global deployments across

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40 languages and 150 countries, ServiceSource solutions can uniquely leverage industry and company data, leading-edge technology and best-practices drawn from our significant and in-depth database of renewal benchmarks. By integrating managed services, cloud software and data, we provide our clients with insights into their end customers’ businesses, end-to-end management and optimization of end customer onboarding, adoption, subscription, asset management, and service contract renewal processes whether managed by us directly or through our client’s channel partners.

Our managed services offering leverages either a pay-for-performance or a flat-rate model whereby our clients pay us a commission based on renewal sales that we generate on their behalf. Our cloud software technologies are an integral component to our unique RLM technology platform and may be managed by ServiceSource or provided directly to the client. Such cloud technologies include: ServiceSource Revenue Analytics, Renew OnDemand and the ServiceSource Customer Success application, all of which automate and provide data driven insights into these highly valuable but typically manual business processes. This blend of technology capabilities, managed services and best-practice process can drive higher subscription, maintenance and support revenue while improving customer retention and increasing business predictability.

The scalability of our solution enables us to sell in over 40 languages from six centers around the globe. Our solution is designed to optimize recurring revenue across different revenue models, distribution models, and segments, including hardware, software, SaaS, industrial systems, information and media, as well as technology-enabled health care and life sciences.

Our Chief Executive Officer ("CEO") is the chief operating decision maker and has historically managed the Company as two reportable segments: Managed Services and Cloud and Business Intelligence ("CBI") based on the discrete financial information available for each segment.  However, during the second half of 2015, we began implementing a series of actions to emphasizes a one-company, single go-to-market strategy for our services offering that resulted in the reorganization of our CBI personnel and sales team delivery structure. The objective of these actions was to more closely integrate and support the Managed Services organization with our cloud technologies and to eliminate new stand-alone CBI cloud offerings. Further, due to this reorganization and shift to a single go-to-market strategy, discrete cost information is no longer separately available for the former CBI segment. Consequently, as of the first quarter of 2016, our CEO manages and allocates resources on a company-wide basis as a single segment that is focused on service offerings which integrate data, processes and cloud technologies.

Key Business Metrics

In assessing the performance of our business, we consider a variety of business metrics in addition to the financial metrics discussed below under, “Basis of Presentation.” These key metrics include Opportunity Under Management and number of engagements, both of which are non-GAAP metrics.

Opportunity Under Management. At December 31, 2015, we estimated our Opportunity Under Management was approximately $9.9 billion. Opportunity Under Management is a non-GAAP metric that represents our estimate of the value of all end customer service contracts that we have the opportunity to sell on behalf of our clients over a designated period of time. In addition, we processed more than $4.0 billion of contract value through our cloud technologies in 2015 for which we received fees. Opportunity Under Management is not a measure of our expected revenue. Opportunity Under Management reflects our estimate over a designated period of time and should not be used to estimate our opportunity for any particular quarter within that period. Also, the value of end customer contracts actually delivered during a given period should not be expected to occur in even quarterly increments due to seasonality and other factors impacting our clients and their end customers. We estimate the value of such end customer contracts based on a combination of factors, including the value of end customer contracts made available to us by our clients in past periods, the minimum value of end customer contracts that our clients are required to give us the opportunity to sell pursuant to the terms of our contracts with them, periodic internal business reviews of our expectations as to the value of end customer contracts that will be made available to us by our clients, the value of end customer contracts included in the Service Performance Analysis ("SPA") and collaborative discussions with our clients assessing their expectations as to the value of service contracts that they make available to us for sale. While the minimum value of end customer contracts that our clients are required to give us represents a portion of our estimated Opportunity Under Management, a significant portion of the Opportunity Under Management is estimated based on the other factors described above. As our experience with our business, our clients and their contracts has grown, we have continually refined the process, improved the assumptions and expanded the data related to our calculation of Opportunity Under Management. When estimating Opportunity Under Management, we must, to a large degree, rely on the assumptions described above, which may prove incorrect. These assumptions are inherently subject to significant business and economic uncertainties and contingencies, many of which are beyond our control. Our estimates therefore may prove inaccurate, causing the actual value of end customer contracts delivered to us in a given period to differ from our estimate of Opportunity Under Management. These factors include:

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•the extent to which clients deliver a greater or lesser value of end customer contracts than may be required or

otherwise expected;

•changes in the pricing or terms of service contracts offered by our clients;

•increases or decreases in the end customer base of our clients;

•the extent to which the renewal rates we achieve on behalf of a client early in an engagement affect the amount of

opportunity that the client makes available to us later in the engagement;

•client cancellations of their contracts with us; and

•changes in our clients’ businesses, sales organizations, management, sales processes or priorities.

Our revenue also depends on our booking rates and commissions. Our bookings is the total amount of Opportunity Under Management that we renew on behalf of our clients. Our commission rate is an agreed-upon percentage of the renewal value of end customer contracts that we sell on behalf of our clients.

Our booking rate is impacted principally by our ability to successfully sell service contracts on behalf of our clients. Other factors impacting our booking rate include: the manner in which our clients price their service contracts for sale to their end customers; the stage of life-cycle associated with the products and underlying technologies covered by the service contracts offered to the end customer; the extent to which our clients or their competitors introduce new products or underlying technologies; the nature, size and age of the service contracts; and the extent to which we have managed the renewals process for similar products and underlying technologies in the past.

In determining commission rates for an individual engagement, various factors, including our booking rate, as described above, are evaluated. These factors include: historical, industry specific and client specific renewal rates for similar service contracts; the magnitude of the Opportunity Under Management in a particular engagement; the number of end customers associated with these opportunities; and the opportunity to receive additional performance commissions when we exceed certain renewal levels. We endeavor to set our commission rates at levels commensurate with these factors and other factors that may be relevant to a particular engagement. Accordingly, our commission rates vary, often significantly, from engagement to engagement. In addition, we sometimes agree to lower commission rates for engagements with significant Opportunity Under Management.

In 2015, we experienced a decline in Opportunity Under Management due to a number of contractions and non-renewals by some of our clients. We expect the reduction in Opportunity Under Management experienced in 2015 will continue to impact our revenues for the remainder of 2016 until we can replace this decline in Opportunity Under Management.

Number of Engagements. We track the number of engagements we have with our clients. We often have multiple engagements with a single client, particularly where we manage the sales of service renewals relating to different product lines, technologies, types of contracts or geographies for the customer. When the set of renewals we manage on behalf of a client is associated with a separate client contract or a distinct product set, type of end customer contract or geography and therefore requires us to assign a service sales team to manage the renewals, we designate the set of renewals and associated revenues and costs as a unique engagement. For example, we may have one engagement consisting of a service sales team selling maintenance contract renewals of a particular product for a client in the United States and another engagement consisting of a sales team selling warranty contract renewals of a different product for the same client in Europe. These would count as two engagements. We had 154, 191 and 150 engagements as of December 31, 2015, 2014 and 2013, respectively.

Factors Affecting our Performance

Sales Cycle. We sell our integrated solution through our sales organization. At the beginning of the sales process, our quota-carrying sales representatives contact prospective clients and educate them about our offerings. Educating prospective clients about the benefits of our solution can take time, as many of these prospects have not historically relied upon integrated solutions like ours for service revenue management, nor have they typically put out a formal request for proposal or otherwise made a decision to focus on this area. As part of our sales process, we utilize our solutions design team to perform a SPA of our prospect’s service revenue. The SPA includes an analysis of best-practices and benchmarks the prospect’s service revenue against industry peers. Through the SPA process, which typically takes several weeks, we are able to assess the characteristics and size of the prospect’s service revenue, identify potential areas of performance improvement, and formulate our proposal for managing the prospect’s service revenue. The length of our sales cycle for a new client, inclusive of the SPA process and measured from our first formal discussion with the client until execution of a new client contract, is typically longer than six months and has increased in recent periods.

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We generally contract with new clients to manage a specified portion of their service revenue opportunity, such as the opportunity associated with a particular product line or technology, contract type or geography. We negotiate the engagement specific terms of our client contracts, including commission rates, based on the output of the SPA, including the areas identified for improvement. Once we demonstrate success to a client with respect to the opportunity under contract, we seek to expand the scope of our engagement to include other opportunities with the customer. For some customers, we manage all or substantially all of their service contract renewals.

Implementation Cycle. After entering into an engagement with a new client, and to a lesser extent after adding an engagement with an existing client, we incur sales and marketing expenses related to the commissions owed to our sales personnel. These commissions are based on the estimated total contract value, with a material portion of the commission expensed upfront and the remaining portion expensed ratably over a period of twelve to fourteen months. We also make upfront investments in technology and personnel to support the engagement. These expenses are typically incurred one to three months before we begin generating sales and recognizing revenue. Accordingly, in a given quarter, an increase in new clients, and, to a lesser extent, an increase in engagements with existing clients, or a significant increase in the contract value associated with such new clients and engagements, will negatively impact our gross margin and operating margins until we begin to achieve anticipated sales levels associated with the new engagements, which is typically two to three quarters after we begin selling contracts on behalf of our clients.

Although we expect new client engagements to contribute to our operating profitability over time, in the initial periods of a client relationship, the near term impact on our profitability can be negatively impacted by slower-than anticipated growth in revenues for these engagements as well as the impact of the upfront costs we incur, the lower initial level of associated service sales team productivity and lack of mature data and technology integration with the client. As a result, an increase in the mix of new clients as a percentage of total clients may initially have a negative impact on our operating results. Similarly, a decline in the ratio of new clients to total clients may positively impact our near-term operating results.

Contract Terms. A significant portion of our revenue comes from our pay-for-performance model. Under our pay-for-performance model, we earn commissions based on the value of service contracts we sell on behalf of our clients. In some cases, we earn additional performance-based commissions for exceeding pre-determined service renewal targets.

Our new client contracts typically have an initial term between two and four years. Our contracts generally require our clients to deliver a minimum value of qualifying service revenue contracts for us to renew on their behalf during a specified period. To the extent that our customers do not meet their minimum contractual commitments over a specified period, they may be subject to fees for the shortfall. Our client contracts are cancelable on relatively short notice, subject in most cases to the payment of an early termination fee by the client. The amount of this fee is based on the length of the remaining term and value of the contract.

We invoice our clients on a monthly basis based on commissions we earn during the prior month, and with respect to performance-based commissions, on a quarterly basis based on our overall performance during the prior quarter. Revenue is recognized in the period in which our services are performed or, in the case of performance commissions, when the performance condition is achieved. Because the invoicing for our services generally coincides with or immediately follows the sale of service contracts on behalf of our clients, we do not generate or report a significant deferred revenue balance. However, the combination of factors such as, but not limited to, minimum contractual commitments, the performance improvement potential identified by our SPA process, our success in generating improved renewal rates for our customers, and our customers’ historical renewal rates, for example, help to provide us with revenue visibility, but may all affect our performance favorably or unfavorably.

M&A Activity. Our clients, particularly those in the technology sector, participate in an active environment for mergers and acquisitions. Large technology companies have maintained active acquisition programs to increase the breadth and depth of their product and service offerings and small and mid-sized companies have combined to better compete with large technology companies. A number of our clients have merged, purchased other companies or been acquired by other companies. We expect merger and acquisition activity to continue to occur in the future.

The impact of these transactions on our business can vary. Acquisitions of other companies by our customers can provide us with the opportunity to pursue additional business to the extent the acquired company is not already one of our customers. Similarly, when a client is acquired, we may be able to use our relationship with the acquired company to build a relationship with the acquirer. In some cases we have been able to maintain our relationship with an acquired customer even where the acquiring company handles its other service contract renewals through internal resources. In other cases, however, acquirers have elected to terminate or not renew our contract with the acquired company.

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Economic Conditions and Seasonality. An improving economic outlook generally has a positive, but mixed, impact on our business. As with most businesses, improved economic conditions can lead to increased end customer demand and sales. In particular, within the technology sector, we believe that the recent economic downturn led many companies to cut their expenses by choosing to let their existing maintenance, support and subscription agreements lapse. An improving economy may have the opposite effect.

However, an improving economy may also cause companies to purchase new hardware, software and other technology products, which we generally do not sell on behalf of our clients, instead of purchasing maintenance, support and subscription services for existing products. To the extent this occurs, it would have a negative impact on our opportunities in the near term that would partially offset the benefits of an improving economy.

We believe the current uncertainty in the economy, combined with shifting market forces toward subscription-based models, is impacting a number of our clients and prospective clients, particularly in the traditional enterprise software and hardware segments. These forces have placed pressure on end customer demand for their renewal contracts and also have led to some slower decision making in general. This economic and industry environment has adversely affected the conversion rates for end customers and contracts. To the extent these conditions continue they will impact our future revenues.

In addition to the uncertainty in the macroeconomic environment, we experience a seasonal variance in our revenue typically for the third quarter of the year as a result of lower or flat renewal volume corresponding to the timing of our customers’ product sales particularly in the international regions. The impact of this seasonal fluctuation can be amplified if the economy as a whole is experiencing disruption or uncertainty, leading to deferral of some renewal decisions. As we increase our subscription revenue base, this seasonality will become less apparent. However, for at least the foreseeable future, we would expect this pattern to continue.

Within the software industry, there is a growing trend toward providing software to clients using a SaaS model. Under this model, SaaS companies provide access to software applications to customers on a remote basis, and provide their customers with a subscription to use the software, rather than licensing software to their customers.

We have several SaaS-based applications that we develop and support: Renew OnDemand (our purpose-built offering to manage and maximize recurring revenue), ServiceSource Revenue Analytics (our SaaS offering to help companies with predictive analytics for recurring revenue), and other SaaS cloud technologies such as ServiceSource Customer Success. Our research and development costs are primarily related to these SaaS based applications and development of other technologies that are integrated with our overall solutions. We intend to maintain client support, training and professional service organizations to support deployments of our SaaS based applications and solutions. We expect our research and development costs to decline throughout the remainder of 2016 as we complete the development of specific, major releases.

Basis of Presentation

Net Revenue

Substantially all of our net revenue is attributable to commissions we earn from the sale of renewals of maintenance, support and subscription agreements on behalf of our clients. We generally invoice our clients for our services in arrears on a monthly basis for sales commissions, and on a quarterly basis for certain performance sales commissions; accordingly, we typically have no deferred revenue related to these services. We do not set the price, terms or scope of services in the service contracts with end customers and do not have any obligations related to the underlying service contracts between our clients and their end customers.

We also earn revenue from the sale of subscriptions to our cloud based applications. To date, subscription revenue has been a small percentage of total revenue. We expect revenues generated from subscriptions of Renew OnDemand and ServiceSource SaaS cloud technologies to decline for the remainder of 2016. Subscription fees are accounted for separately from commissions, and they are billed in advance over a monthly, quarterly or annual basis. Subscription revenue is recognized ratably over the related subscription term.

We have generated a significant portion of our revenue from a limited number of clients. Our top ten customers accounted for 62% and 54% of our net revenue for the three months ended March 31, 2016 and 2015, respectively.

Effective April 2015, our largest customer at that time reduced the scope of our managed services engagement with us and its subscription of our legacy system. Our Opportunity Under Management as of December 31, 2015 reflects this reduction.

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The loss of revenue from any of our top clients for any reason, including the failure to renew our contracts, termination of some or all of our services, a change of relationship with any of our key clients or their acquisition, can cause a significant decrease in our revenue. We experienced a slight decrease in revenue in the three months ended March 31, 2016 due to cancellations and reductions in the number of customer engagements in excess of new customer engagement additions and expansions for the existing managed services base. The customer engagement cancellations and reductions in 2015 returned to historical rates after being above these historical averages in 2014. Since revenue recognized from client cancellations and reductions continues a quarter or two past the date of termination, depending on client contract, revenues in the first half of 2016 as compared to the prior year period are slightly impacted. The timing of cancellations and client reductions can have a material impact to our revenue.

Our business is geographically diversified. Through the three months ended March 31, 2016, 64% of our net revenue was earned in North America and Latin America (“NALA”), 25% in Europe, Middle East and Africa (“EMEA”) and 11% in Asia Pacific-Japan (“APJ”). Net revenue for a particular geography generally reflects commissions earned from sales of service contracts managed from our sales centers in that geography. Predominantly all of the service contracts sold and managed by our sales centers relate to end customers located in the same geography. APJ is our newest region, and as a result accounts for less of our net revenue. In addition, our Kuala Lumpur and Manila locations are global service delivery centers where we have centralized, for our worldwide operations, the key contract renewal processes that do not require regional expertise, such as client data management and quoting.

Cost of Revenue and Gross Profit

Our cost of revenue expenses include employee compensation, technology costs, including those related to the delivery of our cloud-based technologies, and allocated overhead costs. Compensation expense includes salary, bonus, benefits and stock-based compensation for our dedicated service sales teams. Our allocated overhead includes costs for facilities, information technology and depreciation, including amortization of internal-use software associated with our service revenue technology platform and cloud applications. Allocated costs for facilities consist of rent, maintenance and compensation of personnel in our facilities departments. Our allocated costs for information technology include costs associated with third-party data centers where we maintain our data servers, compensation of our information technology personnel and the cost of support and maintenance contracts associated with computer hardware and software. To the extent our customer base or Opportunity Under Management expands, we may need to hire additional service sales personnel and invest in infrastructure to support such growth. Our cost of revenue may fluctuate significantly and increase or decrease on an absolute basis and as a percentage of revenue in the near term, including for the reasons discussed under, “Factors Affecting Our Performance-Implementation Cycle”. We saw material reductions in cost of revenue expenses in 2015 related primarily to our efforts to better align our personnel costs with the decrease in revenue during 2015. We expect cost of revenues to remain flat to increase slightly throughout 2016 as additional cost reduction measures will be offset by incremental investments in technology, the addition of new service delivery centers and the expansion of our client engagements. Gross profit as a percent of revenue is expected to be flat to slightly improved for the remainder of 2016.

Operating Expenses

Sales and Marketing. Sales and marketing expenses are a significant component of our operating costs and consist primarily of compensation expenses and sales commissions for our sales and marketing staff, allocated expenses and marketing programs and events. We sell our solutions through our global sales organization, which is organized across three geographic regions: NALA, EMEA and APJ. Our commission plans provide that payment of commissions to our sales representatives is contingent on their continued employment, and we recognize expense over a period that is generally between the contract signing date and twelve to fourteen months following the execution of the applicable contract. When commissions are paid upon contract signing and are not contingent on future payments and continued employment, we consider that portion of the commission to be earned and therefore expensed at contract signing. We currently expect sales and marketing expenses to decline for the remainder of 2016, and decrease or remain flat as a percentage of revenue in future years.

Research and Development. Research and development expenses consist primarily of employee compensation expense, allocated costs and the cost of third-party service providers. We focus our research and development efforts on developing new products and applications related to our technology platform. In connection with the development and enhancements of our SaaS cloud applications, we capitalize certain expenditures related to the development and enhancement of internal-use software related to our technology platform. We expect research and development spending to decline in the remainder of 2016, and decrease or remain flat as a percentage of revenue in future years.

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General and Administrative. General and administrative expenses consist primarily of employee compensation expense for our executive, human resources, finance and legal functions, and related expenses for professional fees for accounting, tax and legal services, as well as allocated expenses. We expect that our general and administrative expenses will increase for the remainder of 2016 as we invest in additional facilities, expand our learning and development function and invest in additional information technology.

Restructuring and other. Restructuring and other expenses consist primarily of stock compensation expense related to the accelerated vesting of certain equity awards, employees' separation payments and related employee benefits and charges related to cancellation of contracts. We completed this restructuring in 2015.

Interest Expense and Other, Net

Interest expense. Interest expense consists primarily of interest expense associated with our convertible debt, imputed interest from capital lease payments, accretion of debt discount; and amortization of debt issuance costs. We recognize accretion of debt discount and amortization of interest costs using the effective interest method. We expect our interest expense to increase slightly for the remainder of 2016 from accretion of debt discount, amortization of deferred financing costs and contractual interest costs as a result of our August 2013 issuance of $150.0 million aggregate principal amount of convertible notes due August 2018.

Other, net. Other, net consists primarily of foreign exchange gains and losses and the interest income earned on our cash, cash equivalents and marketable securities investments. We expect other income to vary depending on the movement in foreign currency exchange rates and the related impact on our foreign exchange gain (loss) and the return of interest on our investments.

Income Tax Provision (Benefit)

We account for income taxes using an asset and liability method, which requires the recognition of taxes payable or refundable for the current year and deferred tax assets and liabilities for the expected future tax consequences of temporary differences that currently exist between the tax basis and the financial reporting basis of our taxable subsidiaries’ assets and liabilities using the enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in operations in the period that includes the enactment date. The measurement of deferred tax assets is reduced, if necessary, by the amount of any tax benefits that, based on available evidence, are not expected to be realized.

We evaluate our ability to realize the tax benefits associated with deferred tax assets on a jurisdictional basis. This evaluation utilizes the framework contained in ASC 740, Income Taxes, wherein management analyzes all positive and negative evidence available at the balance sheet date to determine whether all or some portion of our deferred tax assets will not be realized. Under this guidance, a valuation allowance must be established for deferred tax assets when it is more likely than not (a probability level of more than 50 percent) that they will not be realized. In assessing the realization of our deferred tax assets, we consider all available evidence, both positive and negative, and place significant emphasis on guidance contained in ASC 740, which states that “a cumulative loss in recent years is a significant piece of negative evidence that is difficult to overcome.”

We account for unrecognized tax benefits using a more-likely-than-not threshold for financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. We establish reserves for tax-related uncertainties based on estimates of whether, and the extent to which, additional taxes will be due. We record an income tax liability, if any, for the difference between the benefit recognized and measured and the tax position taken or expected to be taken on our tax returns. To the extent that the assessment of such tax positions change, the change in estimate is recorded in the period in which the determination is made. The reserves are adjusted in light of changing facts and circumstances, such as the outcome of a tax audit. The provision for income taxes includes the impact of reserve provisions and changes to reserves that are considered appropriate.

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Results of Operations

The table below sets forth our consolidated results of operations for the periods presented. The period-to-period comparison of financial results presented below is not necessarily indicative of financial results to be achieved in future periods.

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Net revenue	$	59,750		$	66,197
Cost of revenue	41,434			45,815
Gross profit	18,316			20,382
Operating expenses:
Sales and marketing	10,454			10,835
Research and development	2,163			4,822
General and administrative	12,043			12,165
Restructuring and other	—			751
Total operating expenses	24,660			28,573
Loss from operations	(6,344		)	(8,191		)
Interest expense and other, net	(1,509		)	(1,845		)
Loss before income taxes	(7,853		)	(10,036		)
Income tax provision	1,288			134
Net loss	$	(9,141	)	$	(10,170	)
	Three Months Ended March 31,
	2016			2015
	(in thousands)
Includes stock-based compensation of:
Cost of revenue	$	468		$	836
Sales and marketing	862			931
Research and development	197			548
General and administrative	1,332			2,253
Total stock-based compensation	$	2,859		$	4,568

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The following table sets forth our operating results as a percentage of net revenue:

	Three Months Ended March 31,
	2016		2015
	(as % of net revenue)
Net revenue	100	%	100	%
Cost of revenue	69	%	69	%
Gross profit	31	%	31	%
Operating expenses:
Sales and marketing	17	%	16	%
Research and development	4	%	7	%
General and administrative	20	%	18	%
Restructuring and other	—	%	1	%
Total operating expenses	#REF!		#REF!
Loss from operations	#REF!		#REF!

Three months ended March 31, 2016 and March 31, 2015

Net Revenue, Cost of Revenue and Gross Profit

	Three Months Ended March 31,
	2016		2015		Change			% Change
	(in thousands)
Net Revenue	$	59,750	$	66,197	$	(6,447	)	(10	)%
Cost of Revenue	41,434		45,815		(4,381		)	(10	)%
Gross Profit	18,316		20,382		(2,066		)	(10	)%

Net revenue decreased $6.4 million, or 10%, for the first quarter of 2016 compared to the first quarter of 2015. The overall decrease in revenue was due to customer cancellations and reductions, in excess of new customer engagement additions from the previous quarter. Customer cancellations and reductions in the number of customer engagements in the first quarter of 2016 were lower than previous quarters but continue to be slightly more than new business generated. We expect the effects of prior quarters’ cancellations and reductions to decline through the remainder of 2016.

The $4.4 million, or 10%, decrease in our cost of revenue in the first quarter of 2016 compared to the first quarter of 2015 reflects a $4.6 million decrease in employee compensation expense as a result of lower headcount that corresponded with our efforts to better align employee costs with revenue, a decrease of $0.4 million in temporary labor and consulting costs and a $0.1 million decrease in travel costs, offset by a $0.1 million increase in information technology costs.

Gross profit in the first quarter of 2016 decreased by $2.1 million, or 10%, compared to the same period in 2015 which is in line with the decrease in revenue and proportionate reduction in employee related costs.

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Operating Expenses

	Three Months Ended March 31,
	2016		2015		Change			% Change
	(in thousands)
Operating expenses:
Sales and marketing	$	10,454	$	10,835	$	(381	)	(4	)%
Research and development	2,163		4,822		(2,659		)	(55	)%
General and administrative	12,043		12,165		(122		)	(1	)%
Restructuring and other	—		751		(751		)	(100	)%
Total operating expenses	$	24,660	$	28,573	$	(3,913	)	(14	)%
Includes stock-based compensation of:
Sales and marketing	$	862	$	931	$	(69	)
Research and development	197		548		(351		)
General and administrative	1,332		2,253		(921		)
Total stock-based compensation	$	2,391	$	3,732	$	(1,341	)

Sales and marketing expenses

The $0.4 million, or 4%, decrease in sales and marketing expenses in the first quarter of 2016 compared to the first quarter of 2015 resulted from $0.7 million decrease in marketing programs costs and $0.1 million decrease in temporary labor and consultant costs. Offsetting this decrease was a $0.3 million increase in employee compensation costs and a $0.2 million increase in travel costs.

Research and development expenses

The $2.7 million, or 55%, decrease in research and development expense in the first quarter of 2016 compared to the first quarter of 2015 was primarily due to a $1.8 million decrease in employee compensation costs associated with a decrease in headcount, a $0.7 million decrease in temporary labor and consulting costs and a $0.1 million decrease in information technology costs.

Internal-use software development capitalization increased by $1.6 million for the three months ended March 31, 2016 compared to the three months ended March 31, 2015, primarily due to new development efforts related to our Renew on Demand and internal managed services platforms. We expect to continue to invest in our technology platforms to support our services offering and thus capitalizing internal-use software costs in the future. However, the amount capitalized will depend on the future level of expenditures on research and development.

General and administrative expenses

The $0.1 million, or 1%, decrease in general and administrative expense in the three months ended March 31, 2016 compared to the three months ended March 31, 2015 reflected a $0.6 million decrease in employee compensation expense related to lower headcount offset by a $0.4 million increase in rent and facility costs.

Restructuring and other expenses

The $0.8 million, or 100%, decrease in restructuring and other in the first quarter of 2016 compared to the first quarter of 2015 was due to the Company completing restructuring efforts in 2015.

Interest Expense and Other, Net

	Three Months Ended March 31,
	2016		2015			Change			% Change
	(in thousands)
Interest expense	2,681		$	2,507		$	174		7	%
Other, net	(1,172	)	(662		)	(510		)	77	%

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Interest expense increased by $0.2 million, or 7%, in the first quarter of 2016 compared to the first quarter of 2015 was due to the increased accretion of debt discount under the effective interest method related to the convertible notes issued in August 2013.

Other, net increased by $0.5 million, or 77%, in the three months ended March 31, 2016 compared to the three months ended March 31, 2015, and was primarily due to foreign currency gains as a result of the U.S. dollar strengthening against the Euro and other foreign currencies of countries where we have operations.

Income Tax Provision

	Three Months Ended March 31,
	2016		2015		Change		% Change
	(in thousands)
Income tax provision	$	1,288	$	134	$	1,154	*

*Not considered meaningful.

For the first quarter of 2016, we recorded income tax expense of $1.3 million. This amount primarily represents $0.7 million of anticipated taxes in jurisdictions where we have profitable operations, including certain U.S. states and foreign jurisdictions and approximately $0.6 million related to an increase in valuation allowance which reflects the portion of certain state deferred tax assets that are more likely than not to be realized. No benefit was provided for losses incurred in U.S. and Singapore because those losses are offset by a full valuation allowance.

For the first quarter of 2015, we recorded income tax expense of $0.1 million. This amount primarily represents anticipated taxes in jurisdictions where we have profitable operations, including certain U.S. state and foreign jurisdictions, offset by benefits available from foreign losses. No benefit was provided for losses incurred in U.S. and Singapore because those losses are offset by a full valuation allowance.

Liquidity and Capital Resources

At March 31, 2016, we had cash, cash equivalents and short-term investments of $198.3 million, which primarily consisted of demand deposits, money market mutual funds, corporate bonds and U.S. government obligations held by well-capitalized financial institutions. In addition, at March 31, 2016, we had cash and cash equivalents of $6.9 million held outside of the U.S. by our foreign subsidiaries that was generated by such subsidiaries and which is used to satisfy their current operating requirements. We consider the undistributed earnings of our foreign subsidiaries to be indefinitely reinvested in foreign operations and we do not have current plans to repatriate these earnings to fund our U.S. operations as we have sufficient cash, cash-equivalents and short-term investments held in the U.S.

Our primary operating cash requirements include the payment of compensation and related costs, working capital requirements related to accounts receivable and accounts payable, as well as costs for our facilities and information technology infrastructure. Historically, we have financed our operations principally from cash provided by our operating activities, proceeds from stock offerings and the exercise of stock options. We believe our existing cash and cash equivalents and short-term investments will be sufficient to meet our working capital and capital expenditure needs for at least the next twelve months.

In August 2013, we issued $150 million aggregate principal amount of 1.50% convertible notes due August 1, 2018 (the “Notes”) and concurrently entered into convertible notes hedges and separate warrant transactions. The Notes will mature on August 1, 2018, unless converted earlier. Upon conversion, the Notes will be settled in cash, shares of our stock, or any combination thereof, at our option. We received proceeds of $145.1 million from the issuance of the convertible notes, net of associated fees, received $21.8 million from the issuance of the warrants and paid $31.4 million for the note hedges. The Notes were not subject to conversion or repurchase at March 31, 2016 and are classified as a noncurrent liability on our condensed consolidated balance sheet.

Share Repurchase Program

In August 2015, the Board authorized a stock repurchase program (“the program”) with a maximum authorization repurchase up to $30.0 million worth of common stock of the Company. The program expires in August 2017. The aggregate amount available under the program was approximately $21.5 million at March 31, 2016. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be repurchased in

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privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.

During the three months ended March 31, 2016, the Company repurchased 1.8 million shares of its common stock under the program at an average price of $3.96 per share for a total of $7.3 million. All repurchases were made using cash resources, and the reacquired shares were retired upon repurchase.

Letter of Credit and Restricted Cash

In May 2015 the Company commenced a 7-year office lease expiring in November 2022 for a new corporate headquarters in San Francisco, California. In connection with this new lease commitment, the Company was required to issue a $1.2 million letter of credit to the landlord. The letter of credit is secured by $1.2 million of a money market account which is classified as restricted cash in our condensed consolidated balance sheet as of March 31, 2016.

Summary Cash Flows

The following table sets forth a summary of our cash flows (in thousands):

	Three Months Ended March 31,
	2016			2015
Net cash provided by (used in) operating activities	$	1,662		$	(2,466	)
Net cash used in investing activities	(5,123		)	(4,318		)
Net cash (used in) provided by financing activities	(6,635		)	603
Net decrease in cash and cash equivalents, net of impact of exchange rate changes on cash	(10,940		)	(5,147		)

Operating Activities

Net cash provided by operating activities was $1.7 million during the three months ended March 31, 2016. Net loss during the period was $9.1 million adjusted by non-cash charges of $3.7 million for depreciation and amortization, $2.1 million of amortization of debt discount and issuance costs, $1.1 million for deferred income taxes and $2.9 million for stock-based compensation. Cash provided by operations as a result of the changes in our working capital include a $2.0 million decrease in accounts receivable and a $4.4 million decrease in accrued compensation and benefits. Uses of cash were related to a $1.6 million increase in accrued expenses and a $1.7 million increase in accounts payable.

Net cash used by operating activities was $2.5 million during the three months ended March 31, 2015. Net loss during the period was $10.2 million adjusted by non-cash charges of $3.5 million for depreciation and amortization, $1.9 million of amortization of debt discount and issuance costs and $4.6 million for stock-based compensation. Cash generated from operations during the three months ended March 31, 2015 resulted from sequential changes in our working capital including a $4.1 million decrease in accounts receivable, a $1.9 million decrease in accrued compensation and benefits, and a $3.7 million decrease in accrued liabilities and other.

Investing Activities

During the three months ended March 31, 2016 cash used in investing activities was principally related to the net purchase, sale and maturities of short-term investments of $0.2 million and property and equipment additions of $5.3 million. Property and equipment additions include $3.0 million of capitalized internal-use software development cost.

During the three months ended March 31, 2015 cash used in investing activities was principally related to the net purchases, sale and maturities of short-term investments of $0.4 million, property and equipment additions of $2.7 million and $1.2 million increase in restricted cash related to a letter of credit required for a lease for our new San Francisco facility. Property and equipment additions include $1.5 million of capitalized internal-use software development cost.

Financing Activities

Cash used in financing activities of $6.6 million in the three months ended March 31, 2016 primarily resulted from the $7.3 million repurchase of common stock offset by the exercise of common stock options and the purchase of common stock under our employee stock purchase plan of $0.7 million.

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Cash provided by financing activities of $0.6 million in the three months ended March 31, 2015 primarily resulted from the exercise of common stock options and the purchase of common stock under our employee stock purchase plan of $0.6 million.

Off-Balance Sheet Arrangements

We do not have any relationships with other entities or financial partnerships such as entities often referred to as structured finance or special-purpose entities, which have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.

Contractual Obligations and Commitments

Our principal commitments consist of obligations under operating leases for office space and computer equipment. At March 31, 2016, the future minimum payments under these commitments were as follows (in thousands):

	Total		Less than 1 year		1-3 years		4-5 years		More than 5 years
Obligations under capital leases	$	262	$	89	$	173	$	—	$	—
Operating lease obligations	52,204		10,272		26,585		12,505		2,842
Total	$	52,466	$	10,361	$	26,758	$	12,505	$	2,842

The contractual commitment amounts in the table above are associated with agreements that are enforceable and legally binding, which specify significant terms including payment terms, related services and the approximate timing of the transaction. Obligations under contracts that we can cancel without a significant penalty are not included in the table above.

Also excluded from the table above is the income tax liability we recorded for the difference between the benefit recognized and measured and the tax position taken or expected to be taken on our tax returns (“unrecognized tax benefits”). As of March 31, 2016, our liability for unrecognized tax benefits was immaterial. Reasonably reliable estimates of the amounts and periods of related future payments cannot be made at this time.

In April 2016, the Company signed a 6-year office lease expiring in July 2022, for a new sales center in Singapore to occupy 17,626 square feet. The total minimum lease payments are estimated to be approximately $4.8 million over the lease term.

Critical Accounting Policies and Estimates

Management has determined that our most critical accounting policies are those related to revenue recognition, stock-based compensation, goodwill and intangible assets and income taxes. There have been no material changes in our critical accounting policies and estimates during the three months ended March 31, 2016 as compared to the critical accounting policies and estimates disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations–Critical Accounting Policies and Estimates” of our Annual Report on Form 10-K for the year ended December 31, 2015 as filed with the Securities and Exchange Commission on March 8, 2016 except as described below.

We estimate the fair value of stock options granted using the Black-Scholes option-pricing model. This model requires us to make estimates and assumptions including, among other things, estimates regarding the length of time an employee will retain vested stock options before exercising them, the estimated volatility of our common stock price using peer company volatility and the number of options that will be forfeited prior to vesting. Prior to January 1, 2016, the expected stock price volatility assumption was determined by examining the historical volatilities for industry peers. Effective January 1, 2016, the stock price volatility assumption was determined by examining a blend of the historical volatilities for industry peers and the trading history for the Company’s common stock.

Recent Accounting Pronouncements

The information contained in Note 1 to our condensed consolidated financial statements in Item 1 under the heading, “Recently Adopted Accounting Pronouncements,” is incorporated by reference into this Item 2.

Item 3.Quantitative and Qualitative Disclosures About Market Risk

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We believe that there have been no significant changes in our market risk exposures for the three months ended March 31, 2016, as compared with those discussed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2015.

Item 4.Controls and Procedures

(a)Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) of the end of the period covered by this report (the “Evaluation Date”).

In designing and evaluating our disclosure controls and procedures, management recognizes that any disclosure controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Based on management’s evaluation, our chief executive officer and chief financial officer concluded that our disclosure controls and procedures are designed to, and are effective to, provide assurance at a reasonable level that the information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms, and that such information is accumulated and communicated to our management, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosures.

(b)Changes in Internal Control Over Financial Reporting

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of any changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during our most recently completed fiscal quarter. Based on that evaluation, our principal executive officer and principal financial officer concluded that there has not been any change in our internal control over financial reporting during the quarter covered by this report that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II — OTHER INFORMATION

Item 1.Legal Proceedings

On July 8, 2015, a single plaintiff filed a putative securities class action lawsuit, Weller v. ServiceSource International, Inc. et al., in the U.S. District Court for the Northern District of California (the “Weller Lawsuit”) against the Company and the Company’s former Chief Executive Officer. The Weller Lawsuit was brought on behalf of purchasers of Company stock during the period January 22, 2014 through May 1, 2014, and alleges violations under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act").   In connection with the mandatory lead plaintiff appointment process under the Private Securities Litigation Reform Act (PSLRA), various law firms issued press releases between July 2015 and September 2015 to search for additional shareholders that would be willing to serve as lead plaintiffs in this lawsuit.  This solicitation period ended on September 29, 2015 and no other shareholders came forward, leaving only the named plaintiff as the sole shareholder seeking to be appointed lead plaintiff.  The court appointed Weller a lead plaintiff on October 21, 2015. At this time, no motion to certify a class has been filed. The Company believes that the claims are meritless, and will vigorously defend itself against such claims.

From time to time, the Company may be subject to other litigation or threatened litigation arising in the ordinary course of our business. Although the results of litigation and claims cannot be predicted with certainty, the Company is currently not aware of any litigation or threats of litigation in which the final outcome could have a material adverse effect on our business, operating results, financial position, or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors. The Company records a contingent liability when it is probable that a loss has been incurred and the amount is reasonably estimable in accordance with accounting for contingencies.

ITEM 1A. Risk Factors

Investing in our common stock involves a high degree of risk. You should carefully consider the risks described below and the other information in this Quarterly Report on Form 10-Q. If any of the following risks are realized, our business, financial condition, results of operations, cash flows, the trading price of our common stock could be materially and adversely affected. The risks described below are not the only risks facing us. Risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially affect our business, financial condition, results of operations, cash flows, and the trading price of our common stock.

Risks Related to Our Business and Industry

Our business and growth depend substantially on clients renewing their agreements with us and expanding their use of our solution for additional available markets. Any decline in our client renewals, termination of ongoing engagements or failure to expand their relationships with us could harm our future operating results.

In order for us to improve our operating results and grow, it is important that our clients renew their agreements with us when the initial contract term expires and that we expand our client relationships to add new market opportunities and the related revenue management opportunity. Our clients may elect not to renew their contracts with us after their initial terms have expired or may elect to otherwise terminate our services, and we cannot assure you that our clients will renew service contracts with us at the same or higher level of service, if at all, or provide us with the opportunity to manage additional revenue management opportunities. Although our renewal rates have been historically higher than those achieved by our clients prior to their using our solution, some clients have still elected not to renew their agreements with us. Our clients’ renewal rates may decline or fluctuate as a result of a number of factors, including their satisfaction or dissatisfaction with our solution and results, our pricing, mergers and acquisitions affecting our clients or their end customers, the effects of economic conditions or reductions in our clients’ or their end customers’ spending levels. If our clients do not renew their agreements with us, renew on less favorable terms, terminate their services with us or fail to contract with us for additional Opportunity Under Management, our revenue may decline and our operating results may be adversely affected.

Our revenue will decline if there is a decrease in the overall demand for our clients’ products and services for which we provide service revenue management.

Our revenue is based on a pay-for-performance model under which we are paid a commission based on the service contracts we sell on behalf of our clients. If a particular client’s products or services fail to appeal to its end customers, our revenue will decline for our work with that client. In addition, if end customer demand decreases for other reasons, such as negative news regarding our clients or their products, unfavorable economic conditions, shifts in strategy by our clients away

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from promoting the service contracts we sell in favor of selling their other products or services to their end customers, or if end customers experience financial constraints and terminate or fail to renew the service contracts we sell, we may experience a decrease in our revenue as the demand for our clients’ service contracts declines. Similarly, if our clients come under economic pressure, they may be more likely to terminate their contracts with us and/or seek to restructure those contracts, and for clients whose contracts are up for renewal, they may seek to renew those contracts on less favorable terms. We experienced a decline in our Opportunity Under Management from our clients in 2015 as compared to 2014 and in 2014 as compared to 2013. We expect that the Opportunity Under Management reduction in 2014 and 2015 will continue to impact our results into 2016. If we continue to experience such a decline in Opportunity Under Management, our revenue and results of operations will be adversely affected.

If booking rates fall short of our estimates, our client relationships will be at risk, our revenue will suffer and our ability to grow and achieve broader market acceptance of our solution could be harmed.

Given our pay-for-performance pricing model, our revenue is directly tied to booking rates. Booking rates represent the percentage of the actual Opportunity Under Management delivered that we renew on behalf of our clients. If the booking rate for a particular client is lower than anticipated, then our revenue for that client will also be lower than projected. If booking rates fall short of expectations across a broad range of clients, or if they fall below expectations for a particularly large client, then the impact on our revenue and our overall business will be significant. In the event booking rates are lower than expected for a given client, our margins will suffer because we will have already incurred a certain level of costs in both personnel and infrastructure to support the engagement. This risk is compounded by the fact that many of our client relationships are terminable if we fail to meet certain specified sales targets over a sustained period of time. If actual booking rates fall to a level at which our revenue and client contracts are at risk, then our financial performance will decline and we will be severely compromised in our ability to retain and attract new clients. Increasing our client base and achieving broader market acceptance of our solution depends, to a large extent, on how effectively our solution increases service sales. As a result, poor performance with respect to our booking rates, in addition to causing our revenue, margins and earnings to suffer, will likely damage our client relationships and overall reputation, and prevent us from effectively developing and maintaining awareness of our brand or achieving widespread acceptance of our solution, in which case we could fail to grow our business and our revenue, margins and earnings would suffer.

The loss of one or more of our key clients could slow our revenue growth or cause our revenue to decline.

A substantial portion of our revenue to date has come from a relatively small number of clients. During the twelve months ended December 31, 2015 our top ten clients accounted for 57% of our revenue, with two clients each representing over 9% of our revenue during this period. A relatively small number of clients may continue to account for a significant portion of our revenue for the foreseeable future. The loss of revenue from any of our significant clients for any reason, including the failure to renew our contracts, termination of some or all of our services, a change of relationship with any of our key clients or their acquisition as discussed below, may cause a significant decrease in our revenue.

Our restructuring plans may not produce anticipated benefits and may lead to charges that will adversely affect our results of operations.

Commencing in the second half of 2014, we implemented restructuring and other cost-reduction plans designed to reduce our overhead and our operating expenses. As we experience changes in our strategy, we will continue to determine whether additional restructuring efforts are required. These restructuring efforts may result in significant restructuring charges that may adversely affect our results of operations for the periods in which such charges occur. Additionally, actual costs related to such restructuring plans may exceed the amounts that we previously estimated, leading to additional charges as actual costs are incurred.

We also continue to invest and re-focus our efforts to improve efficiency in our business. These investments and changes will relate to technology, processes, and people. If such changes do not result in the improvements we expect, we could see a decrease in our performance in certain accounts, lower client satisfaction, and therefore increased client churn.

Our quarterly results of operations may fluctuate as a result of numerous factors, many of which may be outside of our control.

Our quarterly operating results are likely to fluctuate. Some of the important factors that may cause our revenue, operating results and cash flows to fluctuate from quarter to quarter include:

• our ability to attract new clients;

• our ability to retain existing clients and/or maintain the size of our engagements with those clients;

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• the renewal rates we achieve early in an engagement and the time it takes to achieve the booking rates expected for the term of the engagement;

• our ability to effectively sell and implement our cloud technologies;

• fluctuations in the value of end customer contracts delivered to us;

• fluctuations in booking rates;

• changes in our commission rates;

• seasonality;

• loss of clients for any reason including due to acquisition;

• the mix of new clients as compared to existing clients;

• the length of the sales cycle for our solution, and our level of upfront investments prior to the period we begin generating revenue associated with such investments;

• the timing of client payments and payment defaults by clients;

• the amount and timing of operating costs and capital expenditures related to the operations of our business, including the development of new products or cloud technologies;

• the rate of expansion, productivity and realignment of our direct sales force;

• the occurrence of management and employee turnover;

• the cost and timing of the introduction of new technologies or new services, including additional investments in our cloud technologies;

• general economic conditions;

• technical difficulties or interruptions in delivery of our solution;

• changes in foreign currency exchange rates;

• changes in tax rates;

• regulatory compliance costs, including data privacy;

• costs associated with acquisitions of companies and technologies;

• changes in our stock price and the impact of such changes on our convertible notes and related note hedges and warrants;

• the effects of our stock repurchase program;

• extraordinary expenses such as litigation or other dispute-related settlement payments; and

• the impact of new accounting pronouncements.

Many of the above factors are discussed in more detail elsewhere in these Risk Factors. Many of these factors are outside our control, and the variability and unpredictability of such factors could result in our failing to meet our revenue or operating results expectations for a given period. In addition, the occurrence of one or more of these factors might cause our operating results to vary widely which could lead to negative impacts on our margins, short-term liquidity or ability to retain or attract key personnel, and could cause other unanticipated issues. Accordingly, we believe that quarter-to-quarter comparisons of our revenue, operating results and cash flows may not be meaningful and should not be relied upon as an indication of future performance.

Our client relationships and overall business will suffer if our cloud technologies do not meet expectations or if we encounter significant problems implementing them for our clients.

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Since 2012, we have offered Renew OnDemand, our next-generation service revenue management platform on a subscription basis. We have expanded into other cloud technologies such as ServiceSource Revenue Analytics and ServiceSource Customer Success on the salesforce.com platform. Renew OnDemand and our cloud technologies remains relatively new and we have limited experience selling and/or implementing it for clients, as well as limited experience migrating clients from our traditional platform to Renew OnDemand. Given the complexity and significance of this ongoing transition, including as a result of the amount of client data within our systems that will need to be accessed and migrated, our client relationships, our reputation, and our overall business could be severely damaged if our implementations or migrations are poorly executed. In addition, we expect to incur additional expenses as a result of our 2016 plans to run dual technology platforms as we move toward broad use and adoption of certain cloud and technologies internally while maintaining our existing technology platform. Similarly our business operations and client relationships will be at high risk if our cloud technologies do not meet our performance expectations or those of our clients. This could harm our business in numerous ways including, without limitation, a loss of revenue and client contracts and damage to our reputation.

If we cannot efficiently implement our offering for clients, we may be delayed in generating revenue, fail to generate revenue and/or incur significant costs.

In general, our client engagements are complex and may require lengthy and significant work to implement our offerings. Changes in our go-to-market and technology strategies also will increase costs and create implementation risks for us. We also have limited experience implementing our current cloud technologies in general. As a result, we generally incur sales and marketing expenses related to the commissions owed to our sales representatives and make upfront investments in technology and personnel to support the engagements one to three months before we begin selling end customer contracts. Each client’s situation may be different, and unanticipated difficulties and delays may arise as a result of our failure, or that of our client, to meet respective implementation responsibilities. If the client implementation process is not executed successfully or if execution is delayed, we could incur significant costs without yet generating revenue, and our relationships with some of our clients may be adversely impacted.

The market for our solution is relatively undeveloped and may not grow.

The market for recurring revenue management is still relatively undeveloped, has not yet achieved widespread acceptance and may not grow quickly or at all. In addition, we are still promoting market acceptance of our cloud technologies. Our success will depend to a substantial extent on the willingness of companies to engage a third party such as us to manage the sales of their support, maintenance and subscription contracts and subscribe for our cloud technologies. Many companies have invested substantial personnel, infrastructure and financial resources in their own internal service revenue organizations or in some cases have built or modified software applications to help manage renewals, and therefore may be reluctant to switch to a solution such as ours. Companies may not engage us for other reasons, including a desire to maintain control over all aspects of their sales activities and end customer relations, concerns about end customer reaction, a belief that they can sell their support, maintenance and subscription services more cost-effectively using their internal sales organizations, perceptions about the expenses associated with changing to a new approach and the timing of expenses once they adopt a new approach, general reluctance to adopt any new and different approach to old ways of doing business, or other considerations that may not always be evident. New concerns or considerations may also emerge in the future. Particularly because our market is relatively undeveloped, we must address our potential clients’ concerns and explain the benefits of our approach in order to convince them to change the way that they manage the sales of support, maintenance and subscription contracts. If companies are not sufficiently convinced that we can address their concerns and that the benefits of our solution are compelling, then the market for our solution may not develop as we anticipate and our business will not grow.

Delayed or unsuccessful investment in new technology, services and markets may harm our financial results.

We plan to invest significant resources in research and development and general and administrative in order to enhance our managed services offerings and SaaS cloud technologies and other new offerings that will appeal to clients and potential clients. We have undertaken the development of our cloud technologies, including enhancements to our applications to offer improved and more scalable revenue management. In addition, we have continued to develop our cloud technologies to utilize a salesforce.com based platform for our solutions. The development of new products and services entails a number of risks that could adversely affect our business and operating results, including:

• the risk of diverting the attention of our management and our employees from the day-to-day operations of the business;

• insufficient revenue to offset increased expenses associated with research, development, operational and marketing activities; and

• write-offs of the value of such technology investments as a result of unsuccessful implementation or otherwise.

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If our cloud technologies or any of our other new or modified technology do not work as intended, are not responsive to user preferences or industry or regulatory changes, are not appropriately timed with market opportunity, or are not effectively brought to market, we may lose existing and potential clients or related revenue opportunities, in which case our results of operations may suffer. The cost of future development of new revenue management offerings or technologies also could require us to raise additional debt or equity financing. These actions could be dilutive to our stockholders and negatively impact our financial condition or our results of operations.

The anticipated benefits of our integration of separate business units may not materialize, and such integration could adversely affect our business and therefore may be re-evaluated in the future.

Since 2014, we have separately operated our CBI unit and our Managed Services unit, though both units retain the same finance, legal, human resources, and high level executive oversight. The anticipated operating efficiencies and cost savings of separately operating these business units were not fully realized for a variety of reasons. Because of this, we have integrated these two lines of business into one beginning in the first quarter of 2016. The integration may result in the future disruption of our operations, diverting management attention from other business operations, failure to obtain anticipated growth rates, a loss of employee morale and productivity, including the effects of employee attrition, and higher than projected costs. If the anticipated benefits of integrating our business units are not realized, our future growth rates and results of operations may be harmed.

Our estimates of Opportunity Under Management and other metrics may prove inaccurate.

We use various estimates in formulating our business plans and analyzing our potential and historical performance, including our estimate of Opportunity Under Management. We base our estimates upon a number of assumptions that are inherently subject to significant business and economic uncertainties and contingencies, many of which are beyond our control. Our estimates therefore may prove inaccurate.

Opportunity Under Management is a non-GAAP metric that represents our estimate, over a designated period of time, of the value of all end customer service contracts that we have the opportunity to sell on behalf of our clients. Opportunity Under Management is not a measure of our expected revenue. We estimate the value of such end customer contracts based on a combination of factors, including the value of end customer contracts made available to us by clients in past periods; the minimum value of end customer contracts that our clients are required to give us the opportunity to sell pursuant to the terms of their contracts with us; periodic internal business reviews of our expectations as to the value of end customer contracts that will be made available to us by clients; the value of end customer contracts included in the SPA; and collaborative discussions with our clients assessing their expectations as to the value of service contracts that they make available to us for sale. While the minimum value of end customer contracts that our clients are required to give us represents a portion of our estimated Opportunity Under Management, a significant portion of the Opportunity Under Management is estimated based on the other factors described above.

When estimating Opportunity Under Management and other similar metrics, we must, to a large degree, rely on the assumptions described above, which may prove incorrect. These assumptions are inherently subject to significant business and economic uncertainties and contingencies, many of which are beyond our control. Our estimates therefore may prove inaccurate, causing the actual value of end customer contracts delivered to us in a given period to differ from our estimate of Opportunity Under Management. These factors include:

• the extent to which clients deliver a greater or lesser value of end customer contracts than may be required or otherwise expected;

• changes in the pricing or terms of service contracts offered by our clients;

• increases or decreases in the end customer base of our clients;

• the extent to which the renewal rates we achieve on behalf of a client early in an engagement affect the amount of opportunity that the client makes available to us later in the engagement;

• client cancellations of their contracts with us due to acquisitions or otherwise; and

• changes in our clients’ businesses, sales organizations, sales processes or priorities, including changes in executive support for our partnership.

In addition, Opportunity Under Management reflects our estimates over a designated period of time and should not be used to estimate our historical or future opportunity for any particular quarter within that period.

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If our security measures are breached or fail, resulting in unauthorized access to client data, our solution may be perceived as insecure, the attractiveness of our solution to current or potential clients may be reduced and we may incur significant liabilities.

Our solution involves the storage and transmission of the proprietary information and protected data that we receive from our clients. We rely on proprietary and commercially available systems, software, tools and monitoring, as well as other processes, to provide security for processing, transmission and storage of such information. If our security measures are breached or fail as a result of third-party action, employee negligence, error, malfeasance or otherwise, unauthorized access to client or end customer data may occur. Improper activities by third parties, advances in computer and software capabilities and encryption technology, new tools and discoveries and other events or developments may facilitate or result in a compromise or breach of our computer systems. Techniques used to obtain unauthorized access or to sabotage systems change frequently and generally are not recognized until launched against a target, and we may be unable to anticipate these techniques or implement adequate protective measures. Our security measures may not be effective in preventing these types of activities, and the security measures of our third-party data centers and service providers may not be adequate.

Our client contracts generally provide that we will indemnify our clients for data privacy breaches. If such a breach occurs, we could face contractual damages, damages and fees arising from our indemnification obligations, penalties for violation of applicable laws or regulations, possible lawsuits by affected individuals and significant remediation costs and efforts to prevent future occurrences. Insurance may not be able to cover these costs in full, in particular if the damages are large. In addition, whether there is an actual or a perceived breach of our security, the market perception of the effectiveness of our security measures could be harmed significantly and we could lose current or potential clients.

We may be liable to our clients or third parties if we make errors in providing our solution or fail to properly safeguard our clients' confidential information.

The solution we offer is complex, and we make errors from time to time. These may include human errors made in the course of managing the sales process for our clients as we interact with their end customers, or errors arising from our technology solution as it interacts with our clients’ systems and the disparate data contained on such systems. Errors may also arise from the launch of and migration of our current technologies to the cloud technologies. The costs incurred in correcting any material errors may be substantial. In addition, as part of our business, we collect, process and analyze confidential information provided by our clients and prospective clients. Although we take significant steps to safeguard the confidentiality of client information, we could be subject to claims that we disclosed their information without appropriate authorization or used their information inappropriately. Any claims based on errors or unauthorized disclosure or use of information could subject us to exposure for damages, significant legal defense costs, adverse publicity and reputational harm, regardless of the merits or eventual outcome of such claims.

We have sold subscriptions to our cloud technologies separately from our integrated solution, and performing our obligations on these subscriptions could impact our operating results.

We derive a portion of our revenue from subscriptions to our cloud technologies for a few clients. We no longer offer these stand-alone subscriptions to new customers. We have encountered technical and execution challenges that undermine the quality of the technology offering or have caused us to fall short of client expectations, and may continue to encounter, in the future for the period in which we will be required to continue performing our obligations on these subscriptions. Continuing to manage and perform our obligations on these existing subscription engagements may lead to a diversion of financial and managerial resources from our existing business and an inability to generate sufficient revenue to offset the costs of these subscription accounts, which would harm our results of operations.

Changes in the U.S. and foreign legal and regulatory environment that affect our operations, including those relating to privacy, data security and cross-border data flows, could pose a significant risk to us by disrupting our business and increasing our expenses.

We are subject to a wide variety of laws and regulations in the United States and the other jurisdictions in which we operate, and changes in the level of government regulation of our business have the potential to materially alter our business practices with resultant increases in costs and decreases in profitability. Depending on the jurisdiction, those changes may come about through new legislation, the issuance of new regulations or changes in the interpretation of existing laws and regulations by a court, regulatory body or governmental official. Sometimes those changes have both prospective and retroactive effect, which is particularly true when a change is made through reinterpretation of laws or regulations that have been in effect for some time.

Privacy and data security are rapidly evolving areas of regulation, and additional regulation in those areas, some of it potentially difficult and costly for us to accommodate, is frequently proposed and occasionally adopted. Laws in many

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countries and jurisdictions, particularly in the European Union and Canada, govern the requirements related to how we store, transfer or otherwise process the private data provided to us by our clients. In addition, the centralized nature of our information systems at the data and operations centers that we use requires the routine flow of data relating to our clients and their respective end customers across national borders, both with respect to the jurisdictions within which we have operations and the jurisdictions in which we provide services to our clients. If this flow of data becomes subject to new or different restrictions, our ability to serve our clients and their respective end customers could be seriously impaired for an extended period of time.

With regard to data transfers of personal data from our European employees and clients to the United States, we have historically relied on our adherence to the U.S. Department of Commerce’s Safe Harbor Privacy Principles and compliance with the U.S.-EU and U.S.-Swiss Safe Harbor Frameworks as agreed to and set forth by the U.S. Department of Commerce, and the European Union and Switzerland, which established means for legitimizing the transfer of personal data by U.S. companies doing business in Europe from the European Economic Area, or EEA, to the U.S. As a result of the October 6, 2015 European Union Court of Justice, or ECJ, opinion in Case C-362/14 (Schrems v. Data Protection Commissioner) (the “ECJ Ruling”), the U.S.-EU Safe Harbor Framework was deemed an invalid method of compliance with restrictions set forth in EU Directive 95/46/EC (and member states’ implementations thereof) regarding the transfer of personal data outside of the EEA. In light of the ECJ Ruling, we may be required to engage in efforts to legitimize our transfers of personal data from the EEA to the United States. On February 2, 2016, European and U.S. authorities announced a political agreement regarding a new framework for transfers of personal data from the EU to the U.S. called the EU-U.S. Privacy Shield. The EU-U.S. Privacy Shield may provide a framework for legitimate transfers of personal data from the EU to the U.S., but the European Commission must take several steps to implement the EU-U.S. Privacy Shield and it is unclear that we will find it appropriate for our purposes or be able to utilize it. We may be unsuccessful in establishing legitimate means for us to transfer personal data from the EEA, and/or we may experience reluctance or refusal by European clients to use our solutions due to potential risk exposure as a result of the ECJ Ruling. We and our clients may face a risk of enforcement actions taken by EU data protection authorities until the time, if any, that personal data transfers to us and by us from the EEA are legitimized under EU Directive 95/46/EC and applicable member states’ implementations thereof.

We also have entered into various model contracts and related contractual provisions to enable these data flows. For any jurisdictions in which these measures are not recognized or otherwise not compliant with the laws of the countries in which we process data, or where more stringent data privacy laws are enacted irrespective of international treaty arrangements or other existing compliance mechanisms, we could face increased compliance expenses and face penalties for violating such laws or be excluded from those markets altogether, in which case our operations could be materially damaged.

If we are unable to compete effectively against current and future competitors, our business and operating results will be harmed.

The market for revenue management is evolving. Historically, technology companies have managed their renewals through internal personnel and relied upon technology ranging from Excel spreadsheets to internally-developed software to customized versions of traditional business intelligence tools and CRM or ERP software from vendors such as Oracle Corporation, SAP AG, salesforce.com, inc. and NetSuite, Inc. Some companies have made further investments in this area using firms such as Accenture, Plc. and McKinsey & Company, Inc. for technology consulting and education services focused on renewals. These internally-developed solutions represent the primary alternative to our offerings. We also face direct competition from smaller companies that offer specialized revenue management solutions, typically providing technology for use by their end customers’ internal sales personnel. With our acquisition of Scout Analytics in January 2014, we also face competition from other SaaS and enterprise software providers and service providers that offer products and services that analyze recurring revenue management.

We believe the principal competitive factors in our markets include the following:

• recurring revenue industry expertise, best-practices, and benchmarks;

• quality and reliability of software offerings, including convenience and efficacy of cloud-based technologies;

• marketing resources and capabilities;

• performance-based pricing of solutions;

• ability to increase recurring revenue, renewal rates, and booking rates;

• global capabilities;

• completeness of solution;

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• ability to effectively represent client brands to end customers and channel partners;

• size of upfront investment; and

• size and financial stability of operations.

We believe that more competitors will emerge. With respect to our cloud technologies, we are seeing competition from companies targeting product usage, renewals and customer success related offerings. Competitors may have greater name recognition, longer operating histories, well-established relationships with clients in our markets and substantially greater financial, technical, personnel and other resources than we have, and even a potentially broader array of offerings. Potential competitors of any size may be able to respond more quickly and effectively than we can to new or changing opportunities, technologies, standards or end customer requirements. Even if our solution is more effective than competing solutions, potential clients might choose new entrants unless we can convince them of the advantages of our integrated solution. We expect competition and competitive pressure, from both new and existing competitors, to increase in the future.

If there is a widespread shift away from business end customers purchasing maintenance and support service contracts, we could be adversely impacted if we are not able to adapt to new trends or expand our target markets.

As a result of our historical concentration in the software and hardware industries, a significant portion of our revenue comes from the sale of maintenance and support service contracts for the software and hardware products used by our clients’ end customers. Although we also sell other types of renewals, such as subscriptions to software-as-a-service offerings, those sales have to date constituted a relatively small portion of our revenue. The emergence of cloud computing and other alternative technology purchasing models, in which technology services are provided on a remote-access basis, may have a significant impact on the size of the market for traditional maintenance and support contracts. If these alternative models continue gaining traction and reduce the size of our traditional market, we will need to continue to adapt our solution to capitalize on these trends or our results of operations will suffer.

Supporting our existing and growing client base could strain our personnel resources and infrastructure, and if we cannot scale our operations and increase productivity, we may be unsuccessful in implementing our business plan.

Anticipated growth in our client base will place a strain on our management, administrative, operational and financial infrastructure. We expect that additional investments in sales personnel, information technology, infrastructure and research and development spending will be required to:

• further develop and enhance our offerings;

• address the needs of our clients;

• scale our operations and increase productivity;

• develop new technology; and

• expand our markets and Opportunity Under Management, including into new industry verticals and geographic areas.

Our success will depend in part upon our ability to manage our growth effectively. To do so, we must continue to increase the productivity of our existing employees and to hire, train and manage new employees as needed. To manage domestic and international growth of our operations and personnel, we will need to continue to improve our operational, financial and management controls and our reporting processes and procedures, and implement more extensive and integrated financial and business information systems. These additional investments will increase our operating costs, which will make it more difficult for us to offset any future revenue shortfalls by reducing expenses in the short term. Moreover, if we fail to scale our operations successfully and increase productivity, our overall business will be at risk.

Consolidation in the technology sector is continuing at a rapid pace, which could harm our business in the event that our clients are acquired and their contracts are cancelled.

Consolidation among technology companies in our target market has been robust in recent years, and this trend poses a risk for us. Acquisitions of our clients could lead to cancellation of our contracts with those end customers by the acquiring companies and could reduce the number of our existing and potential clients. For example, Oracle has acquired a number of our clients in recent years, including our then-largest client, Sun Microsystems, in January 2010. Oracle elected to terminate our service contracts with each client because Oracle conducted its service revenue management internally. If mergers and acquisitions continue, we expect that some of the acquiring companies, and Oracle in particular, will terminate, renegotiate and/or elect not to renew our contracts with the companies they acquire, which would reduce our revenue.

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We enter into long-term, commission-based contracts with our clients, and our failure to correctly price these contracts may negatively affect our profitability.

We enter into long-term contracts with our clients that are priced based on multiple factors determined in large part by the SPA we conduct for our clients. These factors include opportunity size, anticipated booking rates and expected commission rates at various levels of sales performance. Some of these factors require forward-looking assumptions that may prove incorrect. If our assumptions are inaccurate, or if we otherwise fail to correctly price our client contracts, particularly those with lengthy contract terms, then our revenue, profitability and overall business operations may suffer. Further, if we fail to anticipate any unexpected increase in our cost of providing services, including the costs for employees, office space or technology, we could be exposed to risks associated with cost overruns related to our required performance under our contracts, which could have a negative effect on our margins and earnings.

Many of our client contracts allow termination for our failure to meet certain performance conditions.

Although most of our client contracts are subject to multi-year terms, these agreements often have termination rights if we fail to meet specified sales targets. During the SPA and contract negotiation phase with a client, we typically negotiate minimum performance levels for the engagement. If we fail to meet our required targets and our clients choose to exercise their termination rights, our revenue could decline. These termination rights may also create instability in our revenue forecasts and other forward-looking financial metrics.

Our business may be harmed if our clients rely upon our service revenue forecasts in their business and actual results are materially different.

The contracts that we enter into with our clients provide for sharing of information with respect to forecasts and plans for the renewal of maintenance, support and subscription agreements of our clients. Our clients may use such forecasted data for a variety of purposes related to their business. Our forecasts are based upon the data our clients provide to us, and are inherently subject to significant business, economic and competitive uncertainties, many of which are beyond our control. In addition, these forecasted expectations are based upon historical trends and data that may not be true in subsequent periods. Any material inaccuracies related to these forecasts could lead to claims on the part of our clients related to the accuracy of the forecasted data we provide to them, or the appropriateness of our methodology. Any liability that we incur or any harm to our brand that we suffer because of inaccuracies in the forecasted data we provide to our clients could impact our ability to retain existing clients and harm our business.

Changing global economic conditions and large scale economic shifts may impact our business.

Our overall performance depends in part on worldwide economic conditions that impact the technology sector and other technology-enabled industries such as healthcare, life sciences and industrial systems. For example, the economic downturn typically results in many businesses deferring technology investments, including purchases of new software, hardware and other equipment, and purchases of additional or supplemental maintenance, support and subscription services. To a certain extent, these businesses also slow the rate of renewals of maintenance, support and subscription services for their existing technology base. Any future downturn could cause business end customers to stop renewing their existing maintenance, support and subscription agreements or contracting for additional maintenance services as they look for ways to further cut expenses, in which case our business could suffer. Various economic uncertainty in the start of 2016, including stock market and commodity pricing volatility, could lead to such a downturn that may impact our business.

Conversely, a significant upturn in global economic conditions could cause business purchasers to purchase new hardware, software and other technology products, which we generally do not sell, instead of renewing or otherwise purchasing maintenance, support and subscription services for their existing products. A general shift toward new product sales could reduce our near term opportunities for these contracts, which could lead to a decline in our revenue.

Our inability to expand our target markets could adversely impact our business and operating results.

We derive substantially all of our revenue from clients in certain sectors in the technology and technology-enabled healthcare and life sciences industries, and an important part of our strategy is to expand our existing client base and win new clients in these industries. In addition, because of the service revenue opportunities that we believe exist beyond these industries, we intend to target new clients in additional industry vertical markets, such as heavy machinery and manufacturing. In connection with the expansion of our target markets, we may not have familiarity with such additional industry verticals, and our execution of such expansion could face risks where our experience base is less developed within a particular new vertical. We may encounter clients in these previously untapped markets that have different pricing and other business sensitivities than we are used to managing. As a result of these and other factors, our efforts to expand our solution to additional industry vertical

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markets may not succeed, may divert management resources from our existing operations and may require us to commit significant financial resources to unproven parts of our business, all of which may harm our financial performance.

A substantial portion of our business consists of supporting our clients’ channel partners in the sale of service contracts. If those channel partners become unreceptive to our solution, our business could be harmed.

Many of our clients, including some of our largest clients, sell service contracts through their channel partners and engage our solution to help those channel partners become more effective at selling service contract renewals. These channel partners may have access to some of our cloud technologies in addition to other sales support services we provide. In this context, the ultimate buyers of the service contracts are end customers of those channel partners, who then receive the actual services from our clients. In the event our clients’ channel partners become unreceptive to our involvement in the renewals process, those channel partners could discourage our current or future clients from engaging our solution to support channel sales. This risk is compounded by the fact that large channel partners may have relationships with more than one of our clients or prospects, in which case the negative reaction of one or more of those large channel partners could impact multiple client relationships. Accordingly, with respect to those clients and prospective clients who sell service contracts through channel partners, any significant resistance to our solution by their channel partners could harm our ability to attract or retain clients, which would damage our overall business operations.

We face long sales cycles to secure new client contracts, making it difficult to predict the timing of specific new client relationships.

We face a variable selling cycle to secure new client agreements, typically spanning a number of months and requiring our effort to obtain and analyze our prospect’s business through the SPA, for which we are not paid. We recently have also experienced a lengthening of our sales cycles reflecting the hiring of a number of new sales personnel in the past eighteen months who are new to selling our solution as well as slower decision making by a few end customers as well as other end customers considering renewals of large, multi-year contracts. This has adversely affected the conversion rates of new client contracts. Moreover, even if we succeed in developing a relationship with a potential new client, the scope of the potential subscription or service revenue management engagement frequently changes over the course of the business discussions and, for a variety of reasons, our sales discussions may fail to result in new client acquisitions. Consequently, we have only a limited ability to predict the timing and size of specific new client relationships.

If we fail to balance our expenses with our revenue forecasts or experience significant fluctuations in our business, our results could be harmed and we may need to raise additional capital.

Due to our evolving business model, the uncertain size of our markets and the unpredictability of future general economic and financial market conditions, we expect to continue to require significant capital and may not be able to accurately forecast our revenue and operating needs. We require a significant amount of cash resources to operate our business. We plan our expense levels and investments based on estimates of future sales performance for our clients with respect to their end customers, future revenue and future end customer acquisition. If our assumptions prove incorrect, we may not be able to adjust our spending quickly enough to offset the resulting decline in growth and revenue. Consequently, we expect that our gross margins, operating margins and cash flows may fluctuate significantly on a quarterly basis, and we may need to raise additional capital in order to meet operating and capital expenditure requirements. Any decline in our client renewals or termination of our ongoing engagements may result in higher than anticipated losses in the future and shorten the time before we would need to raise additional capital. If we issue equity securities in order to raise additional funds, substantial dilution to existing stockholders may occur. If we raise cash through additional indebtedness, we may be subject to additional contractual restrictions on our business.

Changes to management, including continued turnover of our top executives, or an inability to attract, hire, integrate and retain key personnel and other necessary employees, may harm our business.

Our future success depends on the continued contributions of our executives, each of whom may be difficult to replace. Our future success also depends in part on our ability to attract, hire, integrate and retain qualified service sales personnel, sales representatives and management- level employees to oversee such sales forces in addition to marketing, research and development and general and administrative personnel to support our global operation. Recently, we have experienced increased turnover in key executive positions, including our chief executive officer and chief financial officer. These new executives may view the business differently than prior members of management, and over time may make changes to our strategic focus, operations or business plans with corresponding changes in how we report our results of operations. We can make no assurances that our new executives will be able to properly manage any such shift in focus or that any changes to our business would ultimately prove successful. The loss of any of our key executives, or our inability to continue to attract, retain and integrate high-quality talent, could harm our business.

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Because competition for our target employees is intense, we may be unable to attract and retain the highly skilled employees we need to support our planned growth.

To continue to execute on our growth plan, we must attract and retain highly qualified sales representatives, engineers and other key employees in the international markets in which we have operations. Competition for these personnel is intense, especially for highly educated, qualified sales representatives. We have from time to time in the past experienced, and we expect to continue to experience in the future, difficulty in hiring and retaining highly skilled key employees with appropriate qualifications. In addition, declines in the trading price of our common stock may make attracting and retaining our employees more difficult given the competitive compensatory environment we face recruiting technology employees in the San Francisco Bay Area. If we fail to attract new sales representatives, engineers and other key employees, or fail to retain and motivate our most successful employees, our business and future growth prospects could be harmed.

The length of time it takes our newly-hired sales representatives to become productive could adversely impact our success rate, the execution of our overall business plan and our costs.

It can take twelve months or longer before our internal sales representatives are fully trained and productive in selling our solution to prospective clients. This long ramp period presents a number of operational challenges as the cost of recruiting, hiring and carrying new sales representatives cannot be offset by the revenue such new sales representatives produce until after they complete their long ramp periods. Further, given the length of the ramp period, we often cannot determine if a sales representative will succeed until he or she has been employed for a year or more. If we cannot reliably develop our sales representatives to a productive level, or if we lose productive representatives in whom we have heavily invested, our future growth rates and revenue will suffer.

We depend on revenue from sources outside the United States, and our international business operations and expansion plans are subject to risks related to international operations, and may not increase our revenue growth or enhance our business operations.

For the year ended December 31, 2015 approximately 34% of our revenue, was generated outside of the United States. As a result of our continued focus on international markets, we expect that revenue derived from international sources will continue to represent a significant portion of our total revenue.

A portion of the sales commissions earned from our international clients is paid in foreign currencies. As a result, fluctuations in the value of these foreign currencies may make our solution more expensive or cause resulting fluctuations in cost for international clients, which could harm our business. We currently do not undertake hedging activities to manage these currency fluctuations. In addition, if the effective price of the contracts we sell to end customers were to increase as a result of fluctuations in the exchange rate of the relevant currencies, demand for such contracts could fall, which in turn would reduce our revenue.

Our growth strategy includes further expansion into international markets. Our international expansion, including opening new office locations, may require significant additional financial resources and management attention, and could negatively affect our financial condition, cash flows and operating results. In addition, we may be exposed to associated risks and challenges, including:

• the need to localize and adapt our solution for specific countries, including translation into foreign languages and associated expenses;

• difficulties in staffing and managing foreign operations;

• different pricing environments, longer sales cycles and longer accounts receivable payment cycles and difficulties in collecting accounts receivable;

• new and different sources of competition;

• weaker protection for our intellectual property than in the United States and practical difficulties in enforcing our rights abroad;

• laws and business practices favoring local competitors;

• compliance obligations related to multiple, conflicting and changing foreign governmental laws and regulations, including employment, tax, privacy and data protection laws and regulations;

• increased financial accounting and reporting burdens and complexities;

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• restrictions on the transfer of funds;

• adverse tax consequences; and

• unstable regional economic and political conditions.

We cannot assure you we will succeed in creating additional international demand for our solution or that we will be able to effectively sell service agreements in the international markets we enter.

We incur increased costs and demands upon management as a result of complying with the laws and regulations affecting public companies, which could adversely affect our operating results.

As a public company, we incur significant legal, accounting and other expenses, and greater expenditures may be necessary in the future with the advent of new laws, regulations and stock exchange listing requirements pertaining to public companies. The Sarbanes-Oxley Act of 2002 and the Dodd-Frank Act of 2010, as well as rules subsequently implemented by the Securities and Exchange Commission and The NASDAQ Stock Market LLC, impose various requirements on public companies, including establishing effective internal controls and certain corporate governance practices. Our management and other personnel devote a substantial amount of time to these compliance initiatives, and additional laws and regulations may divert further management resources. Moreover, if we are not able to meet new compliance requirements in a timely manner, the market price of our stock could decline, and we could be subject to investigations and other actions by The NASDAQ Stock Market LLC, the Securities and Exchange Commission, or other regulatory authorities, which would require additional financial and management resources.

While we believe we currently have adequate internal control over financial reporting, we are required to evaluate our internal control over financial reporting under Section 404 of the Sarbanes-Oxley Act of 2002 and any adverse results from such evaluation could result in a loss of investor confidence in our financial reports and have an adverse effect on our stock price.

Under Section 404 of the Sarbanes-Oxley Act, we are required to furnish a report by our management on our internal control over financial reporting. The report contains, among other matters, an assessment of the effectiveness of our internal control over financial reporting as of the end of our fiscal year, including a statement as to whether or not our internal control over financial reporting is effective. This assessment must include disclosure of any material weaknesses in our internal control over financial reporting identified by management.

We monitor and assess our internal control over financial reporting, and if our management identifies one or more material weaknesses in our internal control over financial reporting and such weakness remains uncorrected at year-end, we will be unable to assert such internal control is effective at such time. If we are unable to assert that our internal control over financial reporting is effective at year-end (or if our independent registered public accounting firm is unable to express an opinion on the effectiveness of our internal control over financial reporting or concludes that we have a material weakness in our internal controls), we could lose investor confidence in the accuracy and completeness of our financial reports, which would likely have an adverse effect on our business and stock price.

If we do not adequately protect our intellectual property rights, our competitive position and our business may suffer.

We rely upon a combination of patent, trademark, copyright and trade secret law and contractual terms to protect our intellectual property rights, all of which provide only limited protection. Our success depends, in part, upon our ability to establish, protect and enforce our intellectual property and other proprietary rights. If we fail to protect or effectively enforce our intellectual property rights, others may be able to compete against us using intellectual property that is the same as or similar to our own. In addition, we cannot assure you that our intellectual property rights are sufficient to provide us with a competitive advantage against others who offer services similar to ours.

While we have filed patent applications to protect our intellectual property, we cannot assure you that any patents will issue or that any issued patents arising from our applications will provide the protection we seek, or that any future patents issued to us will not be challenged, invalidated or circumvented. Also, we cannot assure you that we will obtain any copyright or trademark registrations from our pending or future applications or that any of our trademarks will be enforceable or provide adequate protection of our proprietary rights. We also rely in some circumstances on trade secrets to protect our technology. Trade secrets may lose their value if not properly protected. We endeavor to enter into non-disclosure agreements with our employees, clients, contractors and business partners to limit access to and disclosure of our proprietary information. The steps we have taken, however, may not prevent unauthorized use of our technology, and adequate remedies may not be available in the event of unauthorized use or disclosure of our trade secrets and proprietary technology. However, trade secret protection does not prevent others from reverse engineering or independently developing similar technologies. In addition, reverse

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engineering, unauthorized copying or other misappropriation of our trade secrets could enable third parties to benefit from our technology without paying for it.

Accordingly, despite our efforts, we may be unable to prevent third parties from infringing or misappropriating our intellectual property and using our technology for their competitive advantage. Any such infringement or misappropriation could have a material adverse effect on our business, results of operations and financial condition. Monitoring infringement of our intellectual property rights can be difficult and costly, and enforcement of our intellectual property rights may require us to bring legal actions against infringers. Infringement actions are inherently uncertain and therefore may not be successful, even when claims are meritorious. Even if such actions are successful, they may require a substantial amount of resources and divert our management’s attention.

Claims by others that we infringe or violate their intellectual property could force us to incur significant costs and require us to change the way we conduct our business.

Numerous technology companies including potential competitors protect their intellectual property rights by means such as patents, trade secrets, copyrights and trademarks. We have not conducted an independent review of patents issued to third parties. Additionally, because patent applications in the United States and many other jurisdictions are kept confidential for some period of time before they are published, we may be unaware of pending patent applications that relate to our proprietary technology. From time to time we may receive letters from other parties alleging, or inquiring about, possible breaches of their intellectual property rights.

Any party asserting that we infringe its proprietary rights would force us to defend ourselves, and possibly our clients, against the alleged infringement. The technology industry is characterized by the existence of a large number of patents, copyrights, trademarks and trade secrets and by frequent litigation based on allegations of infringement or other violations of intellectual property rights. Moreover, the risk of such a lawsuit will likely increase as we become larger, the scope of our solution and technology expands and the number of competitors in our market increases. Any such claims or litigation could:

• be time-consuming and expensive to defend, and deplete our financial resources, whether meritorious or not;

• require us to stop providing the services that use the technology that infringes the other party’s intellectual property;

• divert the attention of our technical and managerial resources away from our business;

• require us to enter into royalty or licensing agreements with third parties, which may not be available on terms that we deem acceptable, if at all;

• prevent us from operating all or a portion of our business or force us to redesign our technology, which could be difficult and expensive and may make the performance or value of our solution less attractive;

• subject us to significant liability for damages or result in significant settlement payments; or

• require us to indemnify our clients as we are required by contract to indemnify some of our clients for certain claims based upon the infringement or alleged infringement of any third party’s intellectual property rights resulting from our clients’ use of our intellectual property.

During the course of any intellectual property litigation, confidential information may be disclosed in the form of documents or testimony in connection with discovery requests, depositions or trial testimony. Disclosure of our confidential information and our involvement in intellectual property litigation could harm us. In addition, any uncertainties resulting from the initiation and continuation of any litigation could significantly limit our ability to continue our operations and could harm our relationships with current and prospective clients. Any of the foregoing could disrupt our business and have a material adverse effect on our operating results and financial condition.

In addition, we may incorporate open source software into our technology solution. The terms of many open source licenses have not been interpreted by United States or foreign courts, and there is a risk that such licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our commercialization of any of our solutions that may include open source software. As a result, we will be required to analyze and monitor our use of open source software closely. As a result of the use of open source software, we could be required to seek licenses from third parties in order to develop such future products, re-engineer our products, discontinue sales of our solutions or release our software code under the terms of an open source license to the public. Given the nature of open source software, there is also a risk that third parties may assert copyright and other intellectual property infringement claims against us based on any use of such open source software, as more generally discussed with respect to general intellectual property claims.

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Various risks could affect our worldwide operations, including numerous events outside of our control, exposing us to significant costs that could adversely affect our operations and client confidence.

We conduct operations throughout the world, including our headquarters in the United States and operations in Ireland, Japan, Malaysia, the Philippines, Singapore and the United Kingdom. Also, we have leased new facilities in Bulgaria, which we expect to be fully operational in mid-2016. Such worldwide operations expose us to potential operational disruptions and costs as a result of a wide variety of events, including local inflation or economic downturn, currency exchange fluctuations, political turmoil, labor issues, terrorism, natural disasters and pandemics. Any such disruptions or costs could have a negative effect on our ability to provide our solution or meet our contractual obligations, the cost of our solution, client satisfaction, our ability to attract or maintain clients, and, ultimately, our profits.

Natural disasters or other catastrophic events may cause damage or disruption to our operations, international commerce and the global economy, and thus could have a strong negative effect on us. Our business operations are subject to interruption by natural disasters, fire, power shortages, pandemics and other events beyond our control. Such events could make it difficult or impossible for us to deliver our solution to our clients, and could decrease demand for our solution. The majority of our research and development activities, corporate headquarters, information technology systems and other critical business operations are located near major seismic faults in the San Francisco Bay Area. Because we may not have insurance coverage that would cover quake-related losses, and significant recovery time could be required to resume operations, our financial condition and operating results could be materially adversely affected in the event of a major earthquake or catastrophic event.

Terrorist attacks and other acts of violence or war may adversely affect worldwide financial markets and could potentially lead to economic recession, which could adversely affect our business, results of operations, financial condition and cash flows. These events could adversely affect our clients’ levels of business activity and precipitate sudden significant changes in regional and global economic conditions and cycles.

The technology we currently use may not operate properly, which could damage our reputation, give rise to claims against us or divert application of our resources from other purposes, any of which could harm our business and operating results.

The technology we currently use, which includes our cloud technologies, may contain or develop unexpected defects or errors. There can be no assurance that performance problems or defects in our technology will not arise in the future. Errors may result from receipt, entry or interpretation of client or end customer information or from the interface of our technology with legacy systems and data that are outside of our control. Despite testing, defects or errors may arise in our solution. Any defects and errors that we discover in our technology and any failure by us to identify and effectively address them could result in loss of revenue or market share, liability to clients or others, failure to achieve market acceptance or expansion, diversion of development resources, injury to our reputation, and increased costs. Defects or errors in our technology may discourage existing or potential clients from contracting with us. Correction of defects or errors could prove impossible or impracticable. The costs incurred in correcting any defects or errors or in responding to resulting claims or liability may be substantial and could adversely affect our operating results.

Disruptions in service or damage to the data center that hosts our data and our locations could adversely affect our business.

Our operations depend on our ability to maintain and protect our data servers and cloud applications, which are located in data centers operated for us by third parties. We cannot control or assure the continued or uninterrupted availability of these third-party data centers. In addition, our information technologies and systems, as well as our data center, are vulnerable to damage or interruption from various causes, including natural disasters, war and acts of terrorism and power losses, computer systems failures, Internet and telecommunications or data network failures, operator error, losses of and corruption of data and similar events. Although we conduct business continuity planning and maintain certain insurance for certain events, the situations for which we plan, and the amount of insurance coverage we maintain, may prove inadequate in any particular case. In addition, the occurrence of any of these events could result in interruptions, delays or cessations in the delivery of the solutions we offer to our clients. Any of these events could impair or prohibit our ability to provide our solution, reduce the attractiveness of our solution to current or potential clients and adversely impact our financial condition and results of operations.

In addition, despite the implementation of security measures, our infrastructure, data centers, operations and other centers or systems that we interface with, including the Internet and related systems, may be vulnerable to physical intrusions, hackers, improper employee or contractor access, computer viruses, programming errors, denial-of-service attacks or other attacks by third parties.

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We are dependent on the continued participation and level of service of our third-party platform provider. Any failure or disruption in this service could materially and adversely affect our ability to manage our business effectively.

We rely on salesforce.com to provide the platform supporting many of our cloud technologies and Amazon Web Services ("AWS") to support a significant portion of our data storage. If salesforce.com or AWS stops supporting our technologies or if they fail to provide a platform that consistently and adequately supports our solution, including as a result of errors or failures in their systems or events beyond their control, or refuse to provide this platform on terms acceptable to us or at all and we are not able to find suitable alternatives, our business may be materially and adversely affected.

Any failure or interruptions in the Internet infrastructure, bandwidth providers, data center providers, other third parties or our own systems for providing our solution to clients, and changes in the terms and conditions of third-party platform providers, could negatively impact our business.

Our ability to deliver our solution is dependent on the development and maintenance of the infrastructure of the Internet and other telecommunications services by third parties. Such services include maintenance of a reliable network backbone with the necessary speed, data capacity and security for providing reliable Internet access and services and reliable telecommunications systems that connect our global operations. As we plan to transition to a salesforce.com based platform for certain portions of our solutions, we will rely on salesforce.com to make application programming interfaces publicly available in order to enable client integrations with our platform. In addition, any deterioration in our relationship with salesforce.com could adversely affect our operating results.

While our solution is designed to operate without interruption, we have experienced and expect that we will in the future experience interruptions and delays in services and availability from time to time. We rely on internal systems as well as third-party vendors, including data center, bandwidth, and telecommunications equipment providers, to provide our solution. We do not maintain redundant systems or facilities for some of these services. In the event of a catastrophic event with respect to one or more of these systems or facilities, we may experience an extended period of system unavailability, which could negatively impact our relationship with our clients.

Additional government regulations may reduce the size of the market for our solution, harm demand for our solution and increase our costs of doing business.

Any changes in government regulations that impact our clients or their end customers could have a harmful effect on our business by reducing the size of our addressable market or otherwise increasing our costs. For example, with respect to our technology-enabled healthcare and life sciences clients, any change in U.S. Food and Drug Administration or foreign equivalent regulation of, or denial, withholding or withdrawal of approval of, our clients’ products could lead to a lack of demand for service revenue management with respect to such products. Other changes in government regulations, in areas such as privacy, export compliance or anti-bribery statutes, such as the U.S. Foreign Corrupt Practices Act, could require us to implement changes in our services or operations that increase our cost of doing business and thereby hurt our financial performance.

The future success of our business depends upon the continued use of the Internet as a primary medium for commerce, communication and business applications. Federal, state or foreign government bodies or agencies have in the past adopted, and may in the future adopt, laws or regulations affecting data privacy and the use of the Internet as a commercial medium. In addition, government agencies or private organizations may begin to impose taxes, fees or other charges for accessing the Internet. These laws or charges could limit the growth of Internet-related commerce or communications generally, result in a decline in the use of the Internet and the viability of Internet-based applications such as ours and reduce the demand for our solution.

We operate and offer our services in many jurisdictions and, therefore, may be subject to state, local and foreign taxes that could harm our business.

We operate service sales centers in multiple locations. Some of the jurisdictions in which we operate, such as Ireland, give us the benefit of either relatively low tax rates, tax holidays or government grants, in each case, that are dependent on how we operate or how many jobs we create and employees we retain. We plan on utilizing such tax incentives in the future as opportunities are made available to us. Any failure on our part to operate in conformity with applicable requirements to remain qualified for any such tax incentives or grants may result in an increase in our taxes. In addition, jurisdictions may choose to increase rates at any time due to economic or other factors, such as the current economic situation in Ireland. Any such rate increases may harm our results of operations.

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We may lose sales or incur significant costs should various tax jurisdictions impose taxes on either a broader range of services or services that we have performed in the past. We may be subject to audits of the taxing authorities in the jurisdictions where we do business that would require us to incur costs in responding to such audits. Imposition of such taxes on our services could result in substantial unplanned costs, would effectively increase the cost of such services to our clients and may adversely affect our ability to retain existing clients or to gain new clients in the areas in which such taxes are imposed.

As we acquire companies or technologies in the future, they could prove difficult to integrate, disrupt our business, dilute stockholder value and adversely affect our operating results and the value of our common stock.

As part of our business strategy, we may acquire, enter into joint ventures with, or make investments in companies, services and technologies that we believe to be complementary. Acquisitions and investments involve numerous risks, including:

• difficulties in identifying and acquiring technologies or businesses that will help our business;

• difficulties in integrating operations, technologies, services and personnel;

• diversion of financial and managerial resources from existing operations;

• the risk of entering new markets in which we have little to no experience;

• risks related to the assumption of known and unknown liabilities;

• potential litigation by third parties, such as claims related to intellectual property or other assets acquired or liabilities assumed;

• the risk of write-offs of goodwill and other intangible assets;

• delays in client engagements due to uncertainty and the inability to maintain relationships with clients of the acquired businesses;

• inability to generate sufficient revenue to offset acquisition or investment costs;

• incurrence of acquisition-related costs;

• harm to our existing business relationships with business partners and clients as a result of the acquisition;

• the key personnel of the acquired entity or business may decide not to work for us or may not perform according to our expectations; and

• use of substantial portions of our available cash or dilutive issuances of equity securities or the incurrence of debt to consummate the acquisition.

We may record impairment charges related to our acquisitions or strategic investments, such as the $25.1 million goodwill and other intangible asset impairment we recorded in 2014 that was, in part, related to our acquisition of Scout Analytics. In assessing goodwill for impairment, we make significant estimates and assumptions, including estimates and assumptions about market penetration, anticipated growth rates and risk-adjusted discount rates based on our budgets, business plans, economic projections, anticipated future cash flows and industry data. The estimates and assumptions used by management have a high degree of subjectivity and require significant judgment on the part of management. Changes in estimates and assumptions in the context of our impairment testing may have a material impact on us. Any losses or impairment charges that we incur related to acquisitions or strategic investments may have a negative impact on our financial results, and we may continue to incur new or additional losses related to acquisitions or strategic investments that we have not fully impaired or exited.

As a result, if we fail to properly evaluate acquisitions or investments, we may not achieve the anticipated benefits of any such acquisitions, we may incur costs in excess of what we anticipate and management resources and attention may be diverted from other necessary or valuable activities.

We may be exposed to various risks related to legal proceedings or claims that could adversely affect our operating results.

From time to time, we may be party to lawsuits in the normal course of our business. Such litigation may include claims, suits, government investigations and other proceedings involving intellectual property rights, commercial, corporate and securities, labor and employment, wage and hour, and other matters. Litigation in general can be expensive, lengthy and disruptive to normal business operations. Moreover, the results of complex legal proceedings are difficult to predict.

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Responding to lawsuits brought against us, or legal actions initiated by us, can often be expensive and time-consuming. Unfavorable outcomes from any claims and/or lawsuits could adversely affect our business, results of operations, or financial condition, and we could incur substantial monetary liability and/or be required to change our business practices. Our business and technology acquisition activity could also result in litigation in connection with such acquired companies.

Risks Relating to Owning Our Common Stock and Capitalization Matters

Our share price has been volatile and is likely to be volatile in the future.

The trading price of our common stock is likely to be highly volatile and could be subject to wide fluctuations in response to various factors. In addition to the risks described in this section, factors that may cause the market price of our common stock to fluctuate include:

• fluctuations in our quarterly financial results or the quarterly financial results of companies perceived to be similar to us as discussed in more detail elsewhere in these “Risk Factors”;

• failure to achieve our revenue or earnings expectations, or those of investors or analysts, such as we experienced for the second quarter of 2014;

• actual or perceived changes in general economic, industry and market conditions, especially the technology industry;

• changes in estimates of our financial results or recommendations by securities analysts;

• recruitment or departure of key personnel;

• investors’ general perception of us;

• volatility inherent in prices of technology company stocks;

• adverse publicity;

• the volume of trading in our common stock, including sales upon exercise of outstanding options;

• sales of shares of our common stock by existing stockholders;

• effects of our share repurchase programs;

• regulatory developments in our target markets affecting us, our clients or our competitors; and

• terrorist attacks or natural disasters or other such events impacting countries where we or our clients have operations.

In addition, if the stock market in general experiences a loss of investor confidence, the trading price of our common stock could decline for reasons unrelated to our business, financial condition or results of operations.

Some companies that have had volatile market prices for their securities have had securities class actions filed against them. If a suit were filed against us, regardless of its merits or outcome, it would likely result in substantial costs and divert management’s attention and resources. This could have a material adverse effect on our business, operating results and financial condition.

Our actual results may differ significantly from any guidance that we may issue in the future.

From time to time, we may release financial guidance or other forward-looking statements in our earnings releases, earnings conference calls or otherwise, regarding our future performance that represent our management’s estimates as of the date of release. If given, this guidance will be based on forecasts prepared by our management. These forecasts are not prepared with a view toward compliance with published accounting guidelines, and neither our independent registered public accounting firm nor any other independent expert or outside party compiles or examines the forecasts and, accordingly, no such person expresses any opinion or any other form of assurance with respect to such forecasts. The principal reason that we may release guidance is to provide a basis for our management to discuss our business outlook with analysts and investors. We do not accept any responsibility for any projections or reports published by any third persons. Guidance is necessarily speculative in nature, and it can be expected that some or all of the assumptions of any future guidance furnished by us may not materialize or may vary significantly from actual future results.

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Concentration of ownership among our existing executive officers, directors and their affiliates may prevent new investors from influencing significant corporate decisions.

Our directors and executive officers and their affiliates beneficially own, in the aggregate, approximately 30% of our outstanding common stock as of March 31, 2016. As a result, these stockholders will have substantial influence over all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions, such as a merger or other sale of our company or its assets. This concentration of ownership could limit the ability of other stockholders to influence corporate matters and may have the effect of delaying or preventing a third party from acquiring control over us.

Anti-takeover provisions contained in our certificate of incorporation and bylaws, as well as provisions of Delaware law, could impair a takeover attempt.

Our certificate of incorporation, by laws and Delaware law contain provisions that could have the effect of rendering more difficult or discouraging an acquisition deemed undesirable by our board of directors. Our corporate governance documents include provisions:

• authorizing blank check preferred stock, which could be issued by our board of directors without stockholder approval, with voting, liquidation, dividend and other rights superior to our common stock;

• classifying our board of directors, staggered into three classes, only one of which is elected at each annual meeting;

• limiting the liability of, and providing indemnification to, our directors and officers;

• limiting the ability of our stockholders to call and bring business before special meetings and to take action by written consent in lieu of a meeting;

• requiring advance notice of stockholder proposals for business to be conducted at meetings of our stockholders and for nominations of candidates for election to our board of directors;

• controlling the procedures for the conduct and scheduling of stockholder meetings;

• providing the board of directors with the express power to postpone previously scheduled annual meetings and to cancel previously scheduled special meetings;

• limiting the determination of the number of directors on our board and the filling of vacancies or newly created seats on the board to our board of directors then in office; and

• providing that directors may be removed by stockholders only for cause.

These provisions, alone or together, could delay hostile takeovers and changes in control or changes in our management. As a Delaware corporation, we are also subject to provisions of Delaware law, including Section 203 of the Delaware General Corporation law, which limits the ability of stockholders owning in excess of 15% of our outstanding common stock to merge or combine with us.

Any provision of our certificate of incorporation, by laws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also affect the price that some investors are willing to pay for our common stock

Our business could be negatively affected as a result of actions of activist stockholders.

Campaigns by stockholders to effect changes at publicly traded companies are sometimes led by investors seeking to increase short-term stockholder value through various corporate actions. We have recently seen some activist investors take ownership positions in our common stock. Altai Capital Management is the beneficial owner of approximately 14% of our common stock, has a representative on our board and has entered into a letter agreement and registration rights agreement with us governing various rights and obligations. As a general matter, if we become engaged in a proxy contest with an activist stockholder in the future, our business could be adversely affected as such contests could be costly and time consuming, disrupt our operations and divert the attention of management and our employees from executing our strategic plan. Additionally, perceived uncertainties as to our future direction as a result of stockholder activism or changes to the composition of our board of directors may lead to the perception of a change in the direction of our business, instability or lack of continuity which may be exploited by our competitors, cause concern to current or potential buyers and sellers on our platform, and make it more difficult to attract and retain qualified personnel. If buyers and/or sellers choose to delay, defer or reduce transactions with us or through our platform or transact with our competitors instead of us because of any such issues, then our revenue, earnings and operating cash flows could be adversely affected.

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If securities or industry analysts do not publish or cease publishing research or reports about us, our business or our market, or if they change their recommendations regarding our stock, our stock price and trading volume could decline.

The trading market for our common stock will depend in part on the research and reports that securities or industry analysts publish about us or our business. If any of these analysts cease coverage of us, the trading price and trading volume of our stock could be negatively impacted. If analysts downgrade our stock or publish unfavorable research about our business, our stock price would also likely decline.

We are leveraged financially, which could adversely affect our ability to adjust our business to respond to competitive pressures and to obtain sufficient funds to satisfy our future growth, business needs and development plans.

We have substantial existing indebtedness. In August 2013, we issued $150.0 million aggregate principal amount of our convertible notes.

The degree to which we are leveraged could have negative consequences, including, but not limited to, the following:

• we may be more vulnerable to economic downturns, less able to withstand competitive pressures and less flexible in responding to changing business and economic conditions;

• our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions, general corporate or other purposes may be limited;

• a substantial portion of our cash flows from operations in the future may be required for the payment of the principal amount of our existing indebtedness when it becomes due; and

• we may be required to make cash payments upon any conversion of the convertible notes, which would reduce our cash on hand.

A failure to comply with the covenants and other provisions of our debt instruments could result in events of default under such instruments, which could permit acceleration of all of our outstanding convertible notes and credit facilities.

Any required repurchase of the convertible notes as a result of a fundamental change or acceleration of the convertible notes would reduce our cash on hand such that we would not have those funds available for use in our business. If we are at any time unable to generate sufficient cash flows from operations to service our indebtedness when payment is due, we may be required to attempt to renegotiate the terms of the instruments relating to the indebtedness, seek to refinance all or a portion of the indebtedness or obtain additional financing. There can be no assurance that we will be able to successfully renegotiate such terms, that any such refinancing would be possible or that any additional financing could be obtained on terms that are favorable or acceptable to us.

Conversion of our convertible notes will dilute the ownership interest of existing stockholders and may depress the price of our common stock.

The conversion of some or all of our convertible notes will dilute the ownership interests of then-existing stockholders to the extent we deliver shares upon conversion of any of the notes. Any sales in the public market of the common stock issuable upon such conversion could adversely affect prevailing market prices of our common stock. In addition, the existence of the notes may encourage short selling by market participants because the conversion of the notes could be used to satisfy short positions, or anticipated conversion of the notes into shares of our common stock could depress the price of our common stock.

The conditional conversion feature of the notes, if triggered, may adversely affect our financial condition and operating results.

In the event the conditional conversion feature of the notes is triggered, holders of notes will be entitled to convert the notes at any time during specified periods at their option. If one or more holders elect to convert their notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional share), we would be required to settle a portion of our conversion obligation through the payment of cash, which could adversely affect our liquidity. In addition, even if holders do not elect to convert their notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the notes as a current rather than long term liability, which would result in a material reduction of our net working capital.

49

The accounting method for convertible debt securities that may be settled in cash, such as the convertible notes, may have a material effect on our reported financial results.

In May 2008, the Financial Accounting Standards Board, which we refer to as FASB, issued FASB Staff Position No. APB 14-1, Accounting for Convertible Debt Instruments That May Be Settled in Cash Upon Conversion (Including Partial Cash Settlement), which has subsequently been codified as Accounting Standards Codification 470-20, Debt with Conversion and Other Options, which we refer to as ASC 470-20. Under ASC 470-20, an entity must separately account for the liability and equity components of the convertible debt instruments (such as the notes) that may be settled entirely or partially in cash upon conversion in a manner that reflects the issuer's economic interest cost. The effect of ASC 470-20 on the accounting for the notes is that the equity component is included in the additional paid-in capital section of stockholders' equity on our consolidated balance sheet, and the value of the equity component is treated as an original issue discount for purposes of accounting for the debt component of the notes. As a result, we will record a greater amount of non-cash interest expense in current periods presented as a result of the amortization of the discounted carrying value of the notes to their face amount over the term of the notes. We will report lower net income (or greater net loss) in our financial results because ASC 470-20 will require interest to include both the current period's amortization of the debt discount and the instrument's coupon interest, which could adversely affect our reported or future financial results, the market price of our common stock and the trading price of the notes. In addition, convertible debt instruments (such as the notes) that may be settled entirely or partly in cash are currently accounted for utilizing the treasury stock method, the effect of which is that the shares issuable upon conversion of the notes are not included in the calculation of diluted earnings per share except to the extent that the conversion value of the notes exceeds their principal amount. Under the treasury stock method, the transaction for diluted earnings per share is accounted for as the number of shares of common stock necessary to settle such excess in the principal amount, if we elected to settle such excess in issued shares. We cannot be sure that the accounting standards in the future will continue to permit the use of the treasury stock method. If we are unable to use the treasury stock method in accounting for the shares issuable upon conversion of the notes, then our diluted earnings per share would be adversely affected.

We have incurred and may in the future incur impairments to goodwill, long-lived assets or strategic investments.

We perform an annual impairment analysis of goodwill in the fourth quarter of each year and between annual tests if events or circumstances indicate that it is more likely than not that the asset is impaired. Negative industry or economic trends, including reduced market prices of our common stock, reduced estimates of future cash flows, disruptions to our business, slower growth rates, or lack of growth in our relevant business units, could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets. During 2014 the value of our common stock declined and we experienced slowing revenue growth, which led us to perform an impairment analysis. Based on the outcome of this analysis, we incurred a goodwill impairment charge of $22.7 million which eliminated all of the carrying value of goodwill in the CBI segment. During 2014, we had a change in strategy for part of the CBI segment which resulted in an impairment charge of $2.5 million of certain intangible assets from the Scout Analytics acquisition. If in any future period the Company’s market capitalization declines, this could indicate a potential impairment, and we may be required to record an impairment charge in that period against any remaining goodwill or other long-lived assets.

Also, in 2013, we made a $4.5 million equity investment in an early stage private company. We carry this investment on a cost basis and periodically evaluate the carrying value to determine if the investment is impaired. To date we have concluded that our investment in this private company is not impaired. However, the evaluation of whether or not there is an impairment in the carrying value is judgmental and is based on a number of subjective factors including the private company's financial performance, the terms and conditions of financing arrangements and the private company's liquidity situation. There may be a time when our evaluation will indicate an impairment exists in the value of the investment and we will record an impairment charge to adjust the cost basis of the investment to its recoverable amount. This potential charge could be material to our results of operations.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

The following table includes information about our stock repurchases during the quarter ended March 31, 2016:

Period	Total number of shares purchased (in thousands)	Average price paid per share		Total price paid for shares (includes commissions) (in thousands)
For the three months ended March 31, 2016(1)	1,835	$	3.96	$	7,260

___________________

50

(1) In August 2015, the Board authorized a stock repurchase program with a maximum authorization to repurchase up to $30.0 million worth of common stock of the Company. The program expires in August 2017. The aggregate amount available under the program was approximately $21.5 million at March 31, 2016. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. All shares repurchased were retired.

Item 3.Defaults Upon Senior Securities

None.

Item 4.Mine Safety Disclosures

None.

Item 5.Other Information

None.

Item 6.Exhibits

See the Exhibit Index, which follows the signature page to this report.

51

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.

		SERVICESOURCE INTERNATIONAL, INC. (Registrant)
Date:	May 9, 2016	By:	/s/ ROBERT N. PINKERTON
			Robert N. Pinkerton Chief Financial Officer (Principal Financial and Accounting Officer)

52

INDEX TO EXHIBITS

Exhibit Number	Description of Document
3.1(1)	Certificate of Incorporation of the Company filed March 24, 2011.
3.2(2)	Amended and Restated Bylaws of the Company
31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of Principal Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of Principal Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive data files (XBRL) pursuant to Rule 405 of Regulation S-T: (i) the Condensed Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015, (ii) the Condensed Consolidated Statement of Operations for the three months ended March 31, 2016 and 2015, (iii) the Condensed Consolidated Statements of Comprehensive Loss for the three months ended March 31, 2016 and 2015, (iv) the Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2016 and 2015 and (v) the Notes to Condensed Consolidated Financial Statements. **

(1) Incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on April 1, 2011.

(2) Incorporated by reference to the Registrant's Form 8-K filed with the Securities and Exchange Commission on March 31, 2016.

+Indicates a management contract or compensation plan.

* In accordance with Item 601(b)(32)(ii) of Regulation S-K and SEC Release No. 33-8238 and 34-47986, Final Rule: Management’s Reports on Internal Control Over Financial Reporting and Certification of Disclosure in Exchange Act Periodic Reports, the certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Exchange Act. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference.

** XBRL (Extensible Business Reporting Language) information is furnished and not filed herewith, is not a part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

53

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Christopher M. Carrington, certify that:

1. I have reviewed this quarterly report on Form 10-Q of ServiceSource International, 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 fiscal 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 controls over financial reporting.

Date:	May 9, 2016	By:	/s/ CHRISTOPHER M. CARRINGTON
			Name: Christopher M. Carrington
			Title: Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert N. Pinkerton, certify that:

1. I have reviewed this quarterly report on Form 10-Q of ServiceSource International, 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 fiscal 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 controls over financial reporting.

Date:	May 9, 2016	By:	/s/ ROBERT N. PINKERTON
			Name: Robert N. Pinkerton
			Title: Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Based on my knowledge, I, Christopher M. Carrington, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of ServiceSource International, Inc. on Form 10-Q for the quarter ended March 31, 2016, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of ServiceSource International, Inc.

Date:	May 9, 2016	By:	/s/ CHRISTOPHER M. CARRINGTON
			Name: Christopher M. Carrington
			Title: Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Based on my knowledge, I, Robert N. Pinkerton, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of ServiceSource International, Inc. on Form 10-Q for the quarter ended March 31, 2016, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of ServiceSource International, Inc.

Date:	May 9, 2016	By:	/s/ ROBERT N. PINKERTON
			Name: Robert N. Pinkerton
			Title: Chief Financial Officer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Trading Symbol	SREV
Entity Registrant Name	SERVICESOURCE INTERNATIONAL, INC.
Entity Central Index Key	0001310114
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common stock, shares outstanding		85,376,414

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 61,394	$ 72,334
Short-term investments	136,917	136,378
Accounts receivable, net	55,044	56,563
Deferred income taxes	97	97
Prepaid expenses and other	7,158	8,167
Total current assets	260,610	273,539
Property and equipment, net	29,293	25,903
Deferred income taxes, net of current portion	662	1,759
Goodwill and intangibles, net	9,066	9,444
Other assets, net	7,075	6,919
Total assets	306,706	317,564
Current liabilities:
Accounts payable	2,746	1,067
Accrued taxes	692	1,112
Accrued compensation and benefits	17,872	22,116
Deferred revenue	5,886	5,770
Accrued expenses	7,636	4,716
Other current liabilities	1,500	2,327
Total current liabilities	36,332	37,108
Obligations under capital leases, net of current portion	173	198
Convertible notes, net	128,155	126,051
Other long-term liabilities	4,083	4,113
Total liabilities	$ 168,743	$ 167,470
Commitments and contingencies
Stockholders’ equity:
Common stock; $0.0001 par value; 1,000,000 shares authorized; 85,473 shares issued and 85,352 shares outstanding as of March 31, 2016; 86,893 shares issued and 86,772 shares outstanding as of December 31, 2015	$ 8	$ 8
Treasury stock	(441)	(441)
Additional paid-in capital	328,247	331,922
Accumulated deficit	(190,961)	(181,822)
Accumulated other comprehensive income	1,110	427
Total stockholders’ equity	137,963	150,094
Total liabilities and stockholders’ equity	$ 306,706	$ 317,564

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	85,473,000	86,893,000
Common stock, shares outstanding (in shares)	85,352,000	86,772,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Net revenue	$ 59,750	$ 66,197
Cost of revenue	41,434	45,815
Gross profit	18,316	20,382
Operating expenses:
Sales and marketing	10,454	10,835
Research and development	2,163	4,822
General and administrative	12,043	12,165
Restructuring and other	0	751
Total operating expenses	24,660	28,573
Loss from operations	(6,344)	(8,191)
Interest expense and other, net	(1,509)	(1,845)
Loss before income taxes	(7,853)	(10,036)
Income tax provision	1,288	134
Net loss	$ (9,141)	$ (10,170)
Net loss per share, basic and diluted (in dollars per share)	$ (0.11)	$ (0.12)
Weighted average common shares outstanding, basic and diluted (in shares)	86,081	84,252

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (9,141)	$ (10,170)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	765	(247)
Unrealized gain on short-term investments, net of tax	345	375
Other comprehensive income (loss), net of tax	1,110	128
Total comprehensive loss	$ (8,031)	$ (10,042)

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (9,141)	$ (10,170)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	3,737	3,500
Amortization of Debt Issuance Costs and Discounts	2,103	1,924
Accretion of premium on short-term investments and other	405	(37)
Deferred income taxes	1,097	8
Stock-based compensation	2,859	4,568
Restructuring and other	0	(689)
Changes in operating assets and liabilities:
Accounts receivable, net	2,029	4,075
Deferred revenue	85	463
Prepaid expenses and other	983	92
Accounts payable	1,702	485
Accrued taxes	(434)	(781)
Accrued compensation and benefits	(4,427)	(1,870)
Accrued expenses	1,584	(3,675)
Other liabilities	(920)	(359)
Net cash provided by (used in) operating activities	1,662	(2,466)
Cash flows from investing activities
Acquisition of property and equipment	(5,279)	(2,669)
Restricted cash	0	(1,244)
Purchases of short-term investments	(30,999)	(17,035)
Sales of short-term investments	31,155	16,630
Net cash used in investing activities	(5,123)	(4,318)
Cash flows from financing activities
Repayment on capital leases obligations	(66)	(45)
Repurchase of common stock	(7,260)	0
Proceeds from common stock issuances	691	648
Net cash (used in) provided by financing activities	(6,635)	603
Net decrease in cash and cash equivalents	(10,096)	(6,181)
Effect of exchange rate changes on cash and cash equivalents	(844)	1,034
Cash and cash equivalents at beginning of period	72,334	90,382
Cash and cash equivalents at end of period	$ 61,394	$ 85,235

XML

Description of Business and Basis of Presentation

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Description of Business and Basis of Presentation

Description of Business and Basis of Presentation

ServiceSource International, Inc. (together with its subsidiaries, the “Company”) is a global leader in customer and revenue lifecycle solutions that power enterprise revenue relationships, partnering with B2B technology and technology-enabled companies to optimize maintenance, support and subscription revenue streams, while also improving end customer relationships and loyalty. The Company delivers these results via dedicated service teams and integral cloud-based technologies, leveraging benchmarks and best-practices derived from its rich database of service and renewal behavior. By integrating managed services, cloud software and data, the Company provides its clients with insights into their end customers' businesses, end-to-end management and optimization of the service-contract renewals process and customer success activities, including data management, quoting, selling and recurring revenue business intelligence. The Company receives commissions from its clients based on renewal sales that the Company generates on their behalf under a pay-for-performance or flat-rate model. In addition, the Company also provides a purpose-built cloud application to maximize the renewal of subscriptions, maintenance and support contracts and receives subscription fees from its clients for the SaaS product. The Company’s corporate headquarters are located in San Francisco, California. The Company has additional U.S. offices in Colorado, Tennessee and Washington, and international offices in Bulgaria, Ireland, Japan, Malaysia, the Philippines, Singapore and the United Kingdom.

The accompanying unaudited interim condensed consolidated financial statements (“condensed consolidated financial statements”) include the accounts of ServiceSource International, Inc. and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.

These condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP” or “GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X, without audit. Accordingly, they do not include all of the information required by U.S. GAAP for annual financial statements. The unaudited condensed consolidated balance sheet as of December 31, 2015 has been derived from the Company's audited annual consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the Securities and Exchange Commission ("SEC") on March 8, 2016. These condensed consolidated financial statements and accompanying notes should be read in conjunction with our annual consolidated financial statements and the notes thereto for the year ended December 31, 2015, included in our Annual Report on Form 10-K.

In the opinion of management, these condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments, management considers necessary for a fair statement of the Company's financial position, operating results, and cash flows for the interim periods presented. Preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Also, the results for the interim periods are not necessarily indicative of results for the entire year.

The Company’s Chief Executive Officer ("CEO") is its chief operating decision maker. The CEO historically managed the Company as two reportable segments: Managed Services and Cloud and Business Intelligence ("CBI") based on the discrete financial information available for each segment.  However, during the second half of 2015, the Company began implementing a series of actions to emphasize a one-company, single go-to-market strategy for its services offering that resulted in the reorganization of its CBI personnel and sales team delivery structure. The objective of these actions was to more closely integrate and support the Managed Services organization with the Company’s cloud technologies and to eliminate new stand-alone CBI cloud offerings. Further, due to this reorganization and shift to a single go-to-market strategy, discrete cost information was no longer separately available for the former CBI segment. Consequently, as of the first quarter of 2016, the CEO manages and allocates resources on a company-wide basis as a single segment that is focused on service offerings which integrate data, processes and cloud technologies.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standard Board ("FASB") issued Accounting Standard Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in the FASB's Accounting Standards Codification ("ASC") 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In July 2015, the FASB approved a one year deferral of the effective date to December 15, 2017, and early application would be permitted, but not before the original effective date of December 15, 2016, so the effective date will be the first quarter of fiscal year 2018 using one of two retrospective application methods. The Company is currently evaluating the impact ASU No. 2014-09 will have on its consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal Use Software, which provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. ASU No. 2015-05 is effective for the Company in fiscal year 2016. An entity can elect to adopt the amendments either (1) prospectively to all arrangements entered into or materially modified after the effective date or (2) retrospectively. The Company has historically accounted for its cloud computing arrangements as a service contract. Consequently, adoption of ASU No. 2015-03 had no impact on the Company's consolidated financial statements.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires that deferred tax assets and liabilities to be classified as noncurrent in the consolidated balance sheet. The standard will be effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for financial statements that have not been previously issued. The standard may be applied either prospectively to all deferred tax assets and liabilities or retrospectively to all periods presented. The Company is currently evaluating the impact that adoption of ASU No. 2015-17 will have on its consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02 Leases (Topic 842). This standard requires entities that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2018. The guidance is required to be applied by the modified retrospective transition approach. Early adoption is permitted. The Company is currently assessing the impact of the adoption of this authoritative guidance on its consolidated financial statements.    

In March 2016, the FASB issued ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting". This standard simplifies and clarifies certain aspects of share-based payment accounting and presentation. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2016 with early adoption permitted. The Company is currently assessing the impact that adoption of ASU 2016-09 will have on its consolidated financial statements.

Reclassifications

Amounts shown in Other assets, net, caption in the Consolidated Balance Sheet as of December 31, 2015 have been reclassified to Convertible notes, net, to reflect the current period presentation as a result of the adoption of ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Cost, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. See Note 6 - Debt.

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Cash, Cash Equivalents and Short-term Investments

3 Months Ended

Mar. 31, 2016

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Short-term Investments

Cash, Cash Equivalents and Short-Term Investments

Cash equivalents consist of highly liquid fixed-income investments with original maturities of three months or less at the time of purchase, including money market funds. The Company has cash and cash equivalents held on its behalf by a third party of $0.5 million and $0.8 million as of March 31, 2016 and December 31, 2015, respectively. Short-term investments consist of readily marketable securities with a remaining maturity of more than three months from time of purchase. The Company classifies all of its cash equivalents and short-term investments as “available for sale,” as these investments are free of trading restrictions. These marketable securities are carried at fair value, with the unrealized gains and losses, net of tax, reported as accumulated other comprehensive income and included as a separate component of stockholders’ equity. Gains and losses are recognized when realized. When the Company determines that other-than-temporary declines in fair value have occurred, the amount of the decline that is related to a credit loss is recognized in earnings. Gains and losses are determined using the specific identification method. The Company’s realized gains and losses in the three months ended March 31, 2016 and 2015 were insignificant.

Cash and cash equivalents and short-term investments consisted of the following as of March 31, 2016 and December 31, 2015 (in thousands):

March 31, 2016

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	60,173	$	—	$	—		$	60,173
Cash equivalents:
Money market mutual funds	1,221		—		—			1,221
Total cash and cash equivalents	61,394		—		—			61,394
Short-term investments:
Corporate bonds	54,782		134		(92		)	54,824
U.S. agency securities	36,286		159		—			36,445
Asset-backed securities	28,060		44		(12		)	28,092
U.S. Treasury securities	17,444		112		—			17,556
Total short-term investments	136,572		449		(104		)	136,917
Cash, cash equivalents and short-term investments	$	197,966	$	449	$	(104	)	$	198,311

December 31, 2015

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	72,105	$	—	$	—		$	72,105
Cash equivalents:
Money market mutual funds	229		—		—			229
Total cash and cash equivalents	72,334		—		—			72,334
Short-term investments:
Corporate bonds	54,434		—		(389		)	54,045
U.S. agency securities	36,010		—		(187		)	35,823
Asset-backed securities	30,665		—		(132		)	30,533
U.S. Treasury securities	16,024		—		(47		)	15,977
Total short-term investments	137,133		—		(755		)	136,378
Cash, cash equivalents and short-term investments	$	209,467	$	—	$	(755	)	$	208,712

The following table summarizes the cost and estimated fair value of short-term fixed income securities classified as short-term investments based on stated maturities as of March 31, 2016 (in thousands):

	Amortized Cost		Estimated Fair Value
Less than 1 year	$	15,655	$	15,648
Due in 1 to 3 years	122,138		122,490
Total	$	137,793	$	138,138

As of March 31, 2016, the Company did not consider any of its investments to be other-than-temporarily impaired.

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The Company measures certain financial instruments at fair value on a recurring basis. The Company uses a three-tier fair value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

Level 1 valuations are based on quoted prices in active markets for identical assets or liabilities.

Level 2 valuations are based on inputs that are observable, either directly or indirectly, other than quoted prices included within Level 1. Such inputs used in determining fair value for Level 2 valuations include quoted prices in active markets for similar assets or liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, 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 valuations are based on information that is unobservable and significant to the overall fair value measurement.

All of the Company’s cash equivalents and short-term investments are classified within Level 1 or Level 2.

The following table presents information about the Company’s financial instruments that are measured at fair value as of March 31, 2016 and indicates the fair value hierarchy of the valuation (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	1,221	$	1,221	$	—
Total cash equivalents	1,221		1,221		—
Short-term investments:
Corporate bonds	54,824		—		54,824
U.S. agency securities	36,445		—		36,445
Asset-backed securities	28,092		—		28,092
U.S. Treasury securities	17,556		—		17,556
Total short-term investments	136,917		—		136,917
Cash equivalents and short-term investments	$	138,138	$	1,221	$	136,917

The Company has restricted cash of $1.2 million within Other assets as of March 31, 2016 and December 31, 2015. The restricted cash is classified within Level 1.

The following table presents information about the Company’s financial instruments that are measured at fair value as of December 31, 2015 and indicates the fair value hierarchy of the valuation (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	229	$	229	$	—
Total cash equivalents	229		229		—
Short-term investments:
Corporate bonds	54,045		—		54,045
U.S. agency securities	35,823		—		35,823
Asset-backed securities	30,533		—		30,533
U.S. Treasury securities	15,977		—		15,977
Total short-term investments	136,378		—		136,378
Cash equivalents and short-term investments	$	136,607	$	229	$	136,378

The convertible notes issued by the Company in August 2013 are shown on the accompanying consolidated balance sheets at their original issuance value, net of unamortized discount, and are not marked to market each period. The approximate fair value of the convertible notes as of March 31, 2016 and December 31, 2015 was $118.9 million and $126.0 million, respectively. The fair value of the convertible notes was determined using quoted market prices for similar securities, which, due to limited trading activity, are considered Level 2 in the fair value hierarchy.

The Company did not have any other financial instruments or long-term debt measured at fair value as of March 31, 2016 and December 31, 2015.

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Other Current Liabilities

3 Months Ended

Mar. 31, 2016

Payables and Accruals [Abstract]

Other Current Liabilities

Other Current Liabilities

Other current liabilities balances were comprised of the following (in thousands):

	March 31, 2016		December 31, 2015
Accrued Interest - Convertible Notes	$	375	$	948
Deferred Rent	782		738
ESPP Withholding	343		641
Total	$	1,500	$	2,327

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Credit Facility and Capital Leases

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Credit Facility and Capital Leases

Credit Facility and Capital Leases

Letter of Credit

On February 3, 2015, the Company issued a $1.2 million letter of credit in connection with a lease for a new San Francisco facility. The letter of credit is secured by $1.2 million of a money market account which is classified as restricted cash on the accompanying condensed consolidated balance sheets.

Capital Leases

The Company has capital lease agreements that are collateralized by the underlying property and equipment and expire through September 2019. The weighted-average imputed interest rates for the capital lease agreements were 3.6% and 5.7% at March 31, 2016 and 2015, respectively.

Future minimum annual payments under capital lease obligations as of March 31, 2016 were as follows (in thousands):

	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	72
2017	67
2018	69
2019	54
2020	—
Total	$	262

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Debt

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Debt

Debt

Senior Convertible Notes

In August 2013, the Company issued senior convertible notes (the “Notes”) in exchange for gross proceeds of $150.0 million.

The Notes are governed by an Indenture, dated August 13, 2013 (the “Indenture”), between the Company and Wells Fargo Bank, National Association, as trustee. The Notes will mature on August 1, 2018, unless earlier repurchased or converted, and bear interest at a rate of 1.50% per year payable semi-annually in arrears on February 1 and August 1, beginning February 1, 2014.

The Notes are convertible at an initial conversion rate of 61.6770 of common stock per $1,000 principal amount of Notes, which represents an initial conversion price of approximately $16.21 per share of common stock, subject to anti-dilution adjustments upon certain specified events as defined in the Indenture. Upon conversion, the Notes will be settled in cash, shares of the Company’s common stock, or any combination thereof, at the Company’s option.

Prior to February 1, 2018, the Notes are convertible only upon the following circumstances:

• during any calendar quarter commencing after December 31, 2013, (and only during such calendar quarter), if for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter, the last reported sale price of common stock on such trading day is greater than or equal to 130% of the applicable conversion price on such trading day;

• during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of the Notes for each trading day of that five consecutive trading day period was less than 98% of the product of the last reported sale price of common stock and the applicable conversion rate on each such trading day; or

• upon the occurrence of specified corporate events described in the Indenture.

Holders of the Notes may convert their Notes at any time on or after February 1, 2018, until the close of business on the second schedule trading day immediately preceding the maturity date, regardless of the foregoing circumstances.

The holders of the Notes may require the Company to repurchase all or a portion of their Notes at a cash repurchase price equal to 100% of the principal amount of the Notes being repurchased, plus accrued and unpaid interest, if any, upon a fundamental change as defined in the Indenture. In addition, upon certain events of default as defined in the Indenture, the trustee, or the holders of at least 25% in principal amount of the outstanding Notes may declare 100% of the principal amount of the Notes, plus accrued and unpaid interest, if any, on all the Notes to be due and payable. In case of certain events of bankruptcy, insolvency or reorganization involving the Company, 100% of the principal of and accrued and unpaid interest on the Notes will automatically become due and payable. The Notes were not subject to repurchase at March 31, 2016.

To account for the Notes at issuance, the Company separated the Notes into debt and equity components pursuant to the accounting standards for convertible debt instruments that may be fully or partially settled in cash upon conversion. The fair value of debt component was estimated using an interest rate for nonconvertible debt, with terms similar to the Notes, excluding the conversion feature. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The excess of the principal amount of the Notes over the fair value of the debt component was recorded as a debt discount and a corresponding increase in additional paid-in capital. The debt discount is accreted to interest expense over the term of the Notes using the interest method. The amount recorded to additional paid-in capital is not to be remeasured as long as it continues to meet the conditions of equity classification. Upon issuance of the $150.0 million of Notes, the Company recorded $111.5 million to debt and $38.5 million to additional paid-in capital.

The Company incurred transaction costs of approximately $4.9 million related to the issuance of the Notes. In accounting for these costs, the Company allocated the costs to the debt and equity components in proportion to the allocation of proceeds from the issuance of the Notes to such components. Transaction costs allocated to the debt component of $3.6 million were recorded as a deferred asset in other assets, net, and amortized to interest expense over the term of the Notes. The transaction costs allocated to the equity component of $1.3 million were recorded to additional paid-in capital.

The net carrying amount of the liability component of the Notes consists of the following (in thousands):

	March 31, 2016			December 31, 2015
Principal amount	$	150,000		$	150,000
Unamortized debt discount	(19,984		)	(21,908		)
Unamortized debt issuance costs	(1,861		)	(2,041		)
Net carrying amount	$	128,155		$	126,051

The following table presents the interest expense recognized related to the Notes (in thousands):

	Three Months Ended March 31,
	2016		2015
Contractual interest expense at 1.5% per annum	$	563	$	563
Amortization of debt issuance costs	179		164
Accretion of debt discount	1,924		1,755
Total	$	2,666	$	2,482

The net proceeds from the Notes were approximately $145.1 million after payment of the initial purchasers' discount and offering expense. The Company used approximately $31.4 million of the net proceeds from the Notes to pay the cost of the Note Hedges described below, which was partially offset by $21.8 million of the proceeds from the Company's sale of the Warrants also described below.

Note Hedges

Concurrent with the issuance of the Notes, the Company entered into note hedges (“Note Hedges”) with certain bank counterparties, with respect to its common stock. The Company paid $31.4 million for the Note Hedges. The Note Hedges cover approximately 9.25 million shares of the Company's common stock at a strike price of $16.21 per share. The Note Hedges will expire upon the maturity of the Notes. The Note Hedges are intended to reduce the potential dilution to the Company's common stock upon conversion of the Notes and/or offset the cash payment in excess of the principal amount of the Notes the Company is required to make in the event that the market value per share of the Company's common stock at the time of exercise is greater than the conversion price of the Notes.

Warrants

Separately, the Company entered into warrant transactions, whereby it sold warrants to the same bank counterparties as the Note Hedges to acquire approximately 9.25 million shares of the Company's common stock at an initial strike price of $21.02 per share (“Warrants”), subject to anti-dilution adjustments. The Company received proceeds of approximately $21.8 million from the sale of the Warrants. If the fair value per share of the Company's common stock exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on earnings per share, unless the Company elects, subject to certain conditions, to settle the Warrants in cash.

The amounts paid and received for the Note Hedges and the Warrants have been recorded in additional paid-in capital. The fair value of the Note Hedges and the Warrants are not remeasured through earnings each reporting period.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Operating Leases

The Company leases its office space and certain equipment under noncancelable operating lease agreements with various expiration dates through November 30, 2022. Rent expense for the three months ended March 31, 2016 and 2015 was $2.6 million and $2.2 million, respectively. The Company recognizes rent expense on a straight-line basis over the lease period and accrues for rent expense incurred but not paid.

In April 2016, the Company signed a 6-year office lease expiring in July 2022, for a new international sales center in Singapore to occupy 17,626 square feet. The total minimum lease payments are estimated to be approximately $4.8 million over the lease term.

Future annual minimum lease payments under all noncancelable operating leases as of March 31, 2016 were as follows (in thousands):

	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	7,632
2017	10,037
2018	9,420
2019	8,065
2020	6,888
Thereafter	10,162
Total	$	52,204

Litigation

On July 8, 2015, a single plaintiff filed a putative securities class action lawsuit, Weller v. ServiceSource International, Inc. et al., in the U.S. District Court for the Northern District of California (the “Weller Lawsuit”) against the Company and the Company’s former Chief Executive Officer. The Weller Lawsuit was brought on behalf of purchasers of Company stock during the period January 22, 2014 through May 1, 2014, and alleges violations under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act").   In connection with the mandatory lead plaintiff appointment process under the Private Securities Litigation Reform Act ("PSLRA"), various law firms issued press releases between July 2015 and September 2015 to search for additional shareholders that would be willing to serve as lead plaintiffs in this lawsuit.  This solicitation period ended on September 29, 2015 and no other shareholders came forward, leaving only the named plaintiff as the sole shareholder seeking to be appointed lead plaintiff. The court appointed Weller a lead plaintiff on October 21, 2015. At this time, no motion to certify a class has been filed. The Company believes that the claims are meritless, and will vigorously defend itself against such claims.

From time to time, the Company may be subject to other litigation or threatened litigation arising in the ordinary course of our business. Although the results of litigation and claims cannot be predicted with certainty, the Company is currently not aware of any litigation or threats of litigation in which the final outcome could have a material adverse effect on it's business, operating results, financial position, or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors. The Company records a contingent liability when it is probable that a loss has been incurred and the amount is reasonably estimable in accordance with accounting for contingencies.

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Share Repurchase Program, Stock-Based Compensation and ESPP

3 Months Ended

Mar. 31, 2016

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

Share Repurchase Program, Stock-Based Compensation and ESPP

Share Repurchase Program, Stock-Based Compensation and ESPP

In August 2015, the Board authorized a stock repurchase program ("the program") with a maximum authorization to repurchase up to $30.0 million worth of common stock of the Company. The program expires in August 2017. The aggregate amount available under the program was approximately $21.5 million as of March 31, 2016. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Exchange Act. The Company cash settles with the program broker periodically and reflects any unsettled amounts as a current liability at each period end.

The following shares of common stock were repurchased under the above-described repurchase plan:

	Number of Shares (in thousands)	Weighted Average Repurchase Price Per Share		Amount (includes commissions) (in thousands)
2016:
First quarter	1,835	$	3.96	$	7,260
2015:
Fourth quarter	136	$	4.09	$	557
Third Quarter	159	$	4.12	655
Total common stock repurchases	2,130			$	8,472

The following table summarizes the consolidated stock-based compensation expense included in the condensed consolidated statements of operations (in thousands):

	Three Months Ended March 31,
	2016		2015
Cost of revenue	$	468	$	836
Sales and marketing	862		931
Research and development	197		548
General and administrative	1,332		2,253
Total stock-based compensation	$	2,859	$	4,568

The above table does not include $0.2 million of capitalized stock-based compensation related to internal-use software during the three months ended March 31, 2016. There was no capitalized stock-based compensation related to internal-use software during the three months ended March 31, 2015.

Determining Fair Value of Stock Awards

The Company estimates the fair value of stock option awards at the date of grant using the Black-Scholes option-pricing model. Options are granted with an exercise price equal to the fair value of the common stock as of the date of grant. Compensation expense is amortized net of estimated forfeitures on a straight-line basis over the requisite service period of the options, which is generally four years. Restricted stock, upon vesting, entitles the holder to one share of common stock for each restricted stock unit or award, and has a purchase price of $0.0001 per share, which is equal to the par value of the Company’s common stock, and vests over four years. The fair value of the restricted stock is based on the Company’s closing stock price on the date of grant, and compensation expense net of estimated forfeitures is recognized on a straight-line basis over the vesting period.

We estimate the fair value of stock options granted using the Black-Scholes option-pricing model. This model requires us to make estimates and assumptions including, among other things, estimates regarding the length of time an employee will retain vested stock options before exercising them, the estimated volatility of our common stock price using peer company volatility and the number of options that will be forfeited prior to vesting. Prior to January 1, 2016, the expected stock price volatility assumption was determined by examining the historical volatilities for industry peers. Effective January 1, 2016, the stock price volatility assumption was determined by examining a blend of the historical volatilities for industry peers and the trading history for the Company’s common stock.

Option and restricted stock activity under the 2011 Plan for the three months ended March 31, 2016 was as follows (shares in thousands):

			Options Outstanding				Restricted Stock Outstanding
	Shares and Units Available for Grant		Number of Shares		Weighted- Average Exercise Price		Number of Shares
Outstanding — December 31, 2015	7,055		10,616		$	4.79	4,552
Additional shares reserved under the 2011 equity incentive plan	3,478		—		—		—
Granted	(476	)	302		3.90		174
Options exercised/ Restricted stock released			(24	)	3.93		(242	)
RSU shares withheld for taxes	13		—		—		13
Canceled/Forfeited	762		(312	)	5.42		(450	)
Outstanding — March 31, 2016	10,832		10,582		$	4.75	4,047

The weighted average grant-date fair value of employee stock options granted during the three months ended March 31, 2016 and 2015 was $2.08 and $1.12 per share, respectively. The unamortized grant date fair value of both stock options and restricted stock awards totaled $18.2 million at March 31, 2016.

Employee Stock Purchase Plan

The Company’s 2011 Employee Stock Purchase Plan (the “ESPP”) is intended to qualify under Section 423 of the Internal Revenue Code of 1986. Under the ESPP, employees are eligible to purchase common stock through payroll deductions of up to 10% of their eligible compensation, subject to any plan limitations. The purchase price of the shares on each purchase date is equal to 85% of the lower of the fair market value of the Company’s common stock on the first and last trading days of each twelve month offering period.

The ESPP provides that additional shares are reserved under the plan annually on the first day of each fiscal year in an amount equal to the lesser of (i) 1.5 million shares, (ii) one percent of the outstanding shares of common stock on the last day of the immediately preceding fiscal year, or (iii) an amount determined by the board of directors and/or the compensation committee of the board of directors. On January 1, 2016, approximately 0.9 million additional shares were reserved under the ESPP pursuant to the plan's automatic increase provision. As of March 31, 2016, 1.6 million total shares had been issued under the ESPP and 3.3 million shares were available for future issuance.

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Income Taxes

3 Months Ended

Mar. 31, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company is subject to taxation in the United States and various state and foreign jurisdictions. Earnings from non-U.S. activities are subject to local country income tax. The Company computes its quarterly income tax provision by using a forecasted annual effective tax rate and adjusts for any discrete items arising during the quarter. The primary difference between the effective tax rate and the federal statutory tax rate relates to the valuation allowances on the Company’s net operating losses and foreign tax rate differences. The tax years 2010 through 2015 remain subject to examination by federal, state and foreign tax authorities. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely outside the U.S. In November 2015, the Philippine Economic Zone Authority granted a four year tax holiday to the Company's Philippine affiliate, commencing with its fiscal year, beginning January 1, 2016. The aggregate dollar and earnings per share impact is not material.

Consistent with the Company’s practice in prior periods for assessing realization of deferred tax assets, management believes that based on the available objective evidence it is more likely than not that the tax benefits of the U.S. and Singapore losses will not be realized. As a result, the Company provided a valuation allowance for all U.S. federal net deferred tax assets, for all Singapore net deferred tax assets, and for substantially all of the Company’s state deferred tax assets other than those as described below.

The Company continues to record valuation allowance to reflect only the portion of the state deferred tax asset that is more likely than not to be realized. Note that changes in tax laws and rates may affect other deferred tax assets and liabilities recorded in the future. These changes are accounted for in the period of enactment and thus are reflected in the Company’s March 31, 2016 financial results.

For the first quarter of 2016, the Company recorded income tax expense of $1.3 million. This amount primarily represents $0.7 million of anticipated taxes in jurisdictions where the Company has profitable operations, including certain U.S. states and foreign jurisdictions and approximately $0.6 million related to an increase in valuation allowance which reflects the portion of certain state deferred tax assets that are more likely than not to be realized. No benefit was provided for losses incurred in U.S. and Singapore because those losses are offset by a full valuation allowance.

The gross amount of the Company's unrecognized tax benefits was $0.9 million as of March 31, 2016 and December 31, 2015, none of which, if recognized, would affect the Company’s effective tax rate.

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Description of Business and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Basis of Presentation

These condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP” or “GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X, without audit. Accordingly, they do not include all of the information required by U.S. GAAP for annual financial statements. The unaudited condensed consolidated balance sheet as of December 31, 2015 has been derived from the Company's audited annual consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the Securities and Exchange Commission ("SEC") on March 8, 2016. These condensed consolidated financial statements and accompanying notes should be read in conjunction with our annual consolidated financial statements and the notes thereto for the year ended December 31, 2015, included in our Annual Report on Form 10-K.

In the opinion of management, these condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments, management considers necessary for a fair statement of the Company's financial position, operating results, and cash flows for the interim periods presented. Preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Also, the results for the interim periods are not necessarily indicative of results for the entire year.

The Company’s Chief Executive Officer ("CEO") is its chief operating decision maker. The CEO historically managed the Company as two reportable segments: Managed Services and Cloud and Business Intelligence ("CBI") based on the discrete financial information available for each segment.  However, during the second half of 2015, the Company began implementing a series of actions to emphasize a one-company, single go-to-market strategy for its services offering that resulted in the reorganization of its CBI personnel and sales team delivery structure. The objective of these actions was to more closely integrate and support the Managed Services organization with the Company’s cloud technologies and to eliminate new stand-alone CBI cloud offerings. Further, due to this reorganization and shift to a single go-to-market strategy, discrete cost information was no longer separately available for the former CBI segment. Consequently, as of the first quarter of 2016, the CEO manages and allocates resources on a company-wide basis as a single segment that is focused on service offerings which integrate data, processes and cloud technologies.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standard Board ("FASB") issued Accounting Standard Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in the FASB's Accounting Standards Codification ("ASC") 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In July 2015, the FASB approved a one year deferral of the effective date to December 15, 2017, and early application would be permitted, but not before the original effective date of December 15, 2016, so the effective date will be the first quarter of fiscal year 2018 using one of two retrospective application methods. The Company is currently evaluating the impact ASU No. 2014-09 will have on its consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal Use Software, which provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. ASU No. 2015-05 is effective for the Company in fiscal year 2016. An entity can elect to adopt the amendments either (1) prospectively to all arrangements entered into or materially modified after the effective date or (2) retrospectively. The Company has historically accounted for its cloud computing arrangements as a service contract. Consequently, adoption of ASU No. 2015-03 had no impact on the Company's consolidated financial statements.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires that deferred tax assets and liabilities to be classified as noncurrent in the consolidated balance sheet. The standard will be effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for financial statements that have not been previously issued. The standard may be applied either prospectively to all deferred tax assets and liabilities or retrospectively to all periods presented. The Company is currently evaluating the impact that adoption of ASU No. 2015-17 will have on its consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02 Leases (Topic 842). This standard requires entities that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2018. The guidance is required to be applied by the modified retrospective transition approach. Early adoption is permitted. The Company is currently assessing the impact of the adoption of this authoritative guidance on its consolidated financial statements.    

In March 2016, the FASB issued ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting". This standard simplifies and clarifies certain aspects of share-based payment accounting and presentation. The standard is effective for fiscal years and the interim periods within those fiscal years beginning after December 15, 2016 with early adoption permitted. The Company is currently assessing the impact that adoption of ASU 2016-09 will have on its consolidated financial statements.

Cash and Cash Equivalents

Cash equivalents consist of highly liquid fixed-income investments with original maturities of three months or less at the time of purchase, including money market funds. The Company has cash and cash equivalents held on its behalf by a third party of $0.5 million and $0.8 million as of March 31, 2016 and December 31, 2015, respectively. Short-term investments consist of readily marketable securities with a remaining maturity of more than three months from time of purchase. The Company classifies all of its cash equivalents and short-term investments as “available for sale,” as these investments are free of trading restrictions. These marketable securities are carried at fair value, with the unrealized gains and losses, net of tax, reported as accumulated other comprehensive income and included as a separate component of stockholders’ equity. Gains and losses are recognized when realized. When the Company determines that other-than-temporary declines in fair value have occurred, the amount of the decline that is related to a credit loss is recognized in earnings. Gains and losses are determined using the specific identification method.

Income Taxes

The Company is subject to taxation in the United States and various state and foreign jurisdictions. Earnings from non-U.S. activities are subject to local country income tax. The Company computes its quarterly income tax provision by using a forecasted annual effective tax rate and adjusts for any discrete items arising during the quarter. The primary difference between the effective tax rate and the federal statutory tax rate relates to the valuation allowances on the Company’s net operating losses and foreign tax rate differences. The tax years 2010 through 2015 remain subject to examination by federal, state and foreign tax authorities. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely outside the U.S.

Reclassification, Policy [Policy Text Block]

Reclassifications

Amounts shown in Other assets, net, caption in the Consolidated Balance Sheet as of December 31, 2015 have been reclassified to Convertible notes, net, to reflect the current period presentation as a result of the adoption of ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Cost, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability.

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Cash, Cash Equivalents and Short-term Investments (Tables)

3 Months Ended

Mar. 31, 2016

Cash and Cash Equivalents [Abstract]

Summary of Cash and Cash Equivalents and Short-Term Investments

Cash and cash equivalents and short-term investments consisted of the following as of March 31, 2016 and December 31, 2015 (in thousands):

March 31, 2016

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	60,173	$	—	$	—		$	60,173
Cash equivalents:
Money market mutual funds	1,221		—		—			1,221
Total cash and cash equivalents	61,394		—		—			61,394
Short-term investments:
Corporate bonds	54,782		134		(92		)	54,824
U.S. agency securities	36,286		159		—			36,445
Asset-backed securities	28,060		44		(12		)	28,092
U.S. Treasury securities	17,444		112		—			17,556
Total short-term investments	136,572		449		(104		)	136,917
Cash, cash equivalents and short-term investments	$	197,966	$	449	$	(104	)	$	198,311

December 31, 2015

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Cash	$	72,105	$	—	$	—		$	72,105
Cash equivalents:
Money market mutual funds	229		—		—			229
Total cash and cash equivalents	72,334		—		—			72,334
Short-term investments:
Corporate bonds	54,434		—		(389		)	54,045
U.S. agency securities	36,010		—		(187		)	35,823
Asset-backed securities	30,665		—		(132		)	30,533
U.S. Treasury securities	16,024		—		(47		)	15,977
Total short-term investments	137,133		—		(755		)	136,378
Cash, cash equivalents and short-term investments	$	209,467	$	—	$	(755	)	$	208,712

Summary of Cost and Estimated Fair Value of Short-Term Fixed Income Securities

The following table summarizes the cost and estimated fair value of short-term fixed income securities classified as short-term investments based on stated maturities as of March 31, 2016 (in thousands):

	Amortized Cost		Estimated Fair Value
Less than 1 year	$	15,655	$	15,648
Due in 1 to 3 years	122,138		122,490
Total	$	137,793	$	138,138

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Summary of Financial Instruments Measured at Fair Value

The following table presents information about the Company’s financial instruments that are measured at fair value as of March 31, 2016 and indicates the fair value hierarchy of the valuation (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	1,221	$	1,221	$	—
Total cash equivalents	1,221		1,221		—
Short-term investments:
Corporate bonds	54,824		—		54,824
U.S. agency securities	36,445		—		36,445
Asset-backed securities	28,092		—		28,092
U.S. Treasury securities	17,556		—		17,556
Total short-term investments	136,917		—		136,917
Cash equivalents and short-term investments	$	138,138	$	1,221	$	136,917

The following table presents information about the Company’s financial instruments that are measured at fair value as of December 31, 2015 and indicates the fair value hierarchy of the valuation (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	229	$	229	$	—
Total cash equivalents	229		229		—
Short-term investments:
Corporate bonds	54,045		—		54,045
U.S. agency securities	35,823		—		35,823
Asset-backed securities	30,533		—		30,533
U.S. Treasury securities	15,977		—		15,977
Total short-term investments	136,378		—		136,378
Cash equivalents and short-term investments	$	136,607	$	229	$	136,378

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Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2016

Payables and Accruals [Abstract]

Schedule of Other Current Liabilities

Other current liabilities balances were comprised of the following (in thousands):

	March 31, 2016		December 31, 2015
Accrued Interest - Convertible Notes	$	375	$	948
Deferred Rent	782		738
ESPP Withholding	343		641
Total	$	1,500	$	2,327

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Credit Facility and Capital Leases (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Schedule of Future Minimum Annual Payments Under Capital Lease Obligations

Future minimum annual payments under capital lease obligations as of March 31, 2016 were as follows (in thousands):

	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	72
2017	67
2018	69
2019	54
2020	—
Total	$	262

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Debt (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Schedule of Net Carrying Amount of Liability Component

The net carrying amount of the liability component of the Notes consists of the following (in thousands):

	March 31, 2016			December 31, 2015
Principal amount	$	150,000		$	150,000
Unamortized debt discount	(19,984		)	(21,908		)
Unamortized debt issuance costs	(1,861		)	(2,041		)
Net carrying amount	$	128,155		$	126,051

Schedule of Interest Expense on Notes Recognized

The following table presents the interest expense recognized related to the Notes (in thousands):

	Three Months Ended March 31,
	2016		2015
Contractual interest expense at 1.5% per annum	$	563	$	563
Amortization of debt issuance costs	179		164
Accretion of debt discount	1,924		1,755
Total	$	2,666	$	2,482

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Future Annual Minimum Lease Payments Under All Noncancelable Operating Leases

Future annual minimum lease payments under all noncancelable operating leases as of March 31, 2016 were as follows (in thousands):

	March 31, 2016
Years Ending December 31,
2016 (remaining nine months)	$	7,632
2017	10,037
2018	9,420
2019	8,065
2020	6,888
Thereafter	10,162
Total	$	52,204

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Share Repurchase Program, Stock-Based Compensation and ESPP (Tables)

3 Months Ended

Mar. 31, 2016

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

Schedule Of Common Stock Repurchase

The following shares of common stock were repurchased under the above-described repurchase plan:

	Number of Shares (in thousands)	Weighted Average Repurchase Price Per Share		Amount (includes commissions) (in thousands)
2016:
First quarter	1,835	$	3.96	$	7,260
2015:
Fourth quarter	136	$	4.09	$	557
Third Quarter	159	$	4.12	655
Total common stock repurchases	2,130			$	8,472

Summary of Stock-Based Compensation Expense

The following table summarizes the consolidated stock-based compensation expense included in the condensed consolidated statements of operations (in thousands):

	Three Months Ended March 31,
	2016		2015
Cost of revenue	$	468	$	836
Sales and marketing	862		931
Research and development	197		548
General and administrative	1,332		2,253
Total stock-based compensation	$	2,859	$	4,568

Summary of Option and Restricted Stock Activity

Option and restricted stock activity under the 2011 Plan for the three months ended March 31, 2016 was as follows (shares in thousands):

			Options Outstanding				Restricted Stock Outstanding
	Shares and Units Available for Grant		Number of Shares		Weighted- Average Exercise Price		Number of Shares
Outstanding — December 31, 2015	7,055		10,616		$	4.79	4,552
Additional shares reserved under the 2011 equity incentive plan	3,478		—		—		—
Granted	(476	)	302		3.90		174
Options exercised/ Restricted stock released			(24	)	3.93		(242	)
RSU shares withheld for taxes	13		—		—		13
Canceled/Forfeited	762		(312	)	5.42		(450	)
Outstanding — March 31, 2016	10,832		10,582		$	4.75	4,047

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Description of Business and Basis of Presentation (Details) - segment	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Number of segments managed by CEO	1	2

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Cash, Cash Equivalents and Short-term Investments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents held by third party	$ 0.5	$ 0.8

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Cash, Cash Equivalents and Short-term Investments - Summary of Cash and Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Total cash and cash equivalents, Amortized Cost	$ 61,394	$ 72,334	$ 85,235	$ 90,382
Total short-term investments, Amortized Cost	136,572	137,133
Total short-term investments, Unrealized Gains	449	0
Total short-term investments, Unrealized Losses	(104)	(755)
Total short-term investments, Estimated Fair Value	136,917	136,378
Cash, cash equivalents and short-term investments, Amortized Cost	197,966	209,467
Cash, cash equivalents and short-term investments, Unrealized Gains	449	0
Cash, cash equivalents and short-term investments, Unrealized Losses	(104)	(755)
Cash, cash equivalents and short-term investments, Estimated Fair Value	198,311	208,712
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments, Amortized Cost	54,782	54,434
Total short-term investments, Unrealized Gains	134	0
Total short-term investments, Unrealized Losses	(92)	(389)
Total short-term investments, Estimated Fair Value	54,824	54,045
U.S. agency securities
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments, Amortized Cost	36,286	36,010
Total short-term investments, Unrealized Gains	159	0
Total short-term investments, Unrealized Losses	0	(187)
Total short-term investments, Estimated Fair Value	36,445	35,823
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments, Amortized Cost	28,060	30,665
Total short-term investments, Unrealized Gains	44	0
Total short-term investments, Unrealized Losses	(12)	(132)
Total short-term investments, Estimated Fair Value	28,092	30,533
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments, Amortized Cost	17,444	16,024
Total short-term investments, Unrealized Gains	112	0
Total short-term investments, Unrealized Losses	0	(47)
Total short-term investments, Estimated Fair Value	17,556	15,977
Cash
Schedule of Available-for-sale Securities [Line Items]
Total cash and cash equivalents, Amortized Cost	60,173	72,105
Total cash and cash equivalents, Unrealized Gains	0	0
Total cash and cash equivalents, Unrealized Losses	0	0
Total cash and cash equivalents, Estimated Fair Value	60,173	72,105
Money market mutual funds
Schedule of Available-for-sale Securities [Line Items]
Total cash and cash equivalents, Amortized Cost	1,221	229
Total cash and cash equivalents, Unrealized Gains	0	0
Total cash and cash equivalents, Unrealized Losses	0	0
Total cash and cash equivalents, Estimated Fair Value	1,221	229
Total cash and cash equivalents
Schedule of Available-for-sale Securities [Line Items]
Total cash and cash equivalents, Amortized Cost	61,394	72,334
Total cash and cash equivalents, Unrealized Gains	0	0
Total cash and cash equivalents, Unrealized Losses	0	0
Total cash and cash equivalents, Estimated Fair Value	$ 61,394	$ 72,334

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Cash, Cash Equivalents and Short-term Investments - Summary of Cost and Estimated Fair Values of Short Term Fixed Income Securities (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Amortized Cost
Less than 1 year	$ 15,655
Due in 1 to 3 years	122,138
Total	137,793
Estimated Fair Value
Less than 1 year	15,648
Due in 1 to 3 years	122,490
Total	$ 138,138

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Fair Value of Financial Instruments - Summary of Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Short-term investments:
Total short-term investments	$ 136,917	$ 136,378
Fair Value, Measurements, Recurring
Cash equivalents:
Total cash equivalents	1,221	229
Short-term investments:
Total short-term investments	136,917	136,378
Cash equivalents and short-term investments	138,138	136,607
Fair Value, Measurements, Recurring | Money market mutual funds
Cash equivalents:
Total cash equivalents	1,221	229
Fair Value, Measurements, Recurring | Corporate bonds
Short-term investments:
Total short-term investments	54,824	54,045
Fair Value, Measurements, Recurring | U.S. agency securities
Short-term investments:
Total short-term investments	36,445	35,823
Fair Value, Measurements, Recurring | Asset-backed securities
Short-term investments:
Total short-term investments	28,092	30,533
Fair Value, Measurements, Recurring | U.S. Treasury securities
Short-term investments:
Total short-term investments	17,556	15,977
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Cash equivalents:
Total cash equivalents	1,221	229
Short-term investments:
Total short-term investments	0	0
Cash equivalents and short-term investments	1,221	229
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market mutual funds
Cash equivalents:
Total cash equivalents	1,221	229
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Short-term investments:
Total short-term investments	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. agency securities
Short-term investments:
Total short-term investments	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Short-term investments:
Total short-term investments	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury securities
Short-term investments:
Total short-term investments	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Cash equivalents:
Total cash equivalents	0	0
Short-term investments:
Total short-term investments	136,917	136,378
Cash equivalents and short-term investments	136,917	136,378
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Money market mutual funds
Cash equivalents:
Total cash equivalents	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds
Short-term investments:
Total short-term investments	54,824	54,045
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. agency securities
Short-term investments:
Total short-term investments	36,445	35,823
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Short-term investments:
Total short-term investments	28,092	30,533
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Treasury securities
Short-term investments:
Total short-term investments	$ 17,556	$ 15,977

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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Significant Other Observable Inputs (Level 2) | Convertible Notes Payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of convertible notes	$ 118.9	$ 126.0
Other Assets | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	$ 1.2	$ 1.2

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Other Current Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Accrued Interest - Convertible Notes	$ 375	$ 948
Deferred Rent	782	738
ESPP Withholding	343	641
Total	$ 1,500	$ 2,327

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Credit Facility and Capital Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Feb. 03, 2015
Line of Credit Facility [Line Items]
Underlying property and equipment expiration period	September 2019
Weighted-average imputed interest rates for the capital lease agreements	3.60%	5.70%
Letter of Credit
Line of Credit Facility [Line Items]
Letter of credit			$ 1.2
Letter of Credit | Money market mutual funds
Line of Credit Facility [Line Items]
Letter of credit, collateral			$ 1.2

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Credit Facility and Capital Leases - Schedule of Future Minimum Annual Payments Under Capital Lease Obligations (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Debt Disclosure [Abstract]
2016 (remaining nine months)	$ 72
2017	67
2018	69
2019	54
2020	0
Net carrying amount	$ 262

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Debt - Narrative (Details) $ / shares in Units, shares in Thousands	1 Months Ended
	Aug. 31, 2013 USD ($) d $ / shares shares	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2015
Debt Instrument [Line Items]
Debt		$ 262,000
Payments of convertible note hedges	$ 31,400,000
Shares covered under note hedges (in shares) | shares	9,250
Common stock strike price (in dollars per share) | $ / shares	$ 16.21
Warrant
Debt Instrument [Line Items]
Proceeds from the issuance of warrants	$ 21,800,000
Warrants sold to acquire shares (in shares) | shares	9,250
Exercise price of warrant (in dollars per share) | $ / shares	$ 21.02
Senior Convertible Notes
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 150,000,000
Interest rate (percent)	1.50%	1.50%		1.50%
Conversion ratio	0.061677
Conversion price (in dollars per share) | $ / shares	$ 16.21
Threshold consecutive trading days	5 days
Threshold percentage of stock price trigger (percent)	98.00%
Threshold business days	5 days
Cash repurchase price (percent)	100.00%
Minimum percent held in principal amount of outstanding notes to declare all notes to be due and payable (percent)	25.00%
Debt	$ 111,500,000	$ 128,155,000	$ 126,051,000
Additional paid in capital	38,500,000
Transaction costs, additional paid in capital	4,900,000
Net proceeds from the Notes	145,100,000
Senior Convertible Notes | Note Hedges
Debt Instrument [Line Items]
Payments of convertible note hedges	31,400,000
Senior Convertible Notes | Warrant
Debt Instrument [Line Items]
Proceeds from the issuance of warrants	$ 21,800,000
Senior Convertible Notes | After December 31, 2013
Debt Instrument [Line Items]
Threshold trading days | d	20
Threshold consecutive trading days	30 days
Threshold percentage of stock price trigger (percent)	130.00%
Other Assets | Senior Convertible Notes
Debt Instrument [Line Items]
Debt component of transaction costs, gross	$ 3,600,000
Additional Paid-in Capital [Member] | Senior Convertible Notes
Debt Instrument [Line Items]
Transaction costs, additional paid in capital	$ 1,300,000

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Debt - Schedule of Net Carrying Amount of Liability Component (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Aug. 31, 2013
Liability Component
Net carrying amount	$ 262
Senior Convertible Notes
Liability Component
Principal amount	150,000	$ 150,000
Unamortized debt discount	(19,984)	(21,908)
Unamortized debt issuance costs	(1,861)	(2,041)
Net carrying amount	$ 128,155	$ 126,051	$ 111,500

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Debt - Schedule of Interest Expense on Notes Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Aug. 31, 2013
Interest Expense
Total	$ 1,509	$ 1,845
Senior Convertible Notes
Interest Expense
Interest rate (percent)	1.50%	1.50%	1.50%
Contractual interest expense at 1.5% per annum	$ 563	$ 563
Amortization of debt issuance costs	179	164
Accretion of debt discount	1,924	1,755
Total	$ 2,666	$ 2,482

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Commitments and Contingencies - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 30, 2016 USD ($) ft²	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Operating Leased Assets [Line Items]
Operating lease payment of non-cancelable agreement expiration period		through November 30, 2022
Rent expense		$ 2,600	$ 2,200
Total future annual minimum lease payment		$ 52,204
SINGAPORE | Subsequent Event
Operating Leased Assets [Line Items]
Lease term (in years)	6 years
Area of space (in square feet) | ft²	17,626
Total future annual minimum lease payment	$ 4,800

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Commitments and Contingencies - Schedule of Future Annual Minimum Lease Payments Under All Noncancelable Operating Leases (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2016 (remaining nine months)	$ 7,632
2017	10,037
2018	9,420
2019	8,065
2020	6,888
Thereafter	10,162
Total	$ 52,204

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Share Repurchase Program, Stock-Based Compensation and ESPP - Schedule Of Common Stock Repurchase (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Shares (in shares)	1,835	136	159	2,130
Weighted Average Repurchase Price Per Share (in dollars per share)	$ 3.96	$ 4.09	$ 4.12
Amount (includes commissions)	$ 7,260	$ 557	$ 655	$ 8,472

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Share Repurchase Program, Stock-Based Compensation and ESPP - Summary of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 2,859	$ 4,568
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	468	836
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	862	931
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	197	548
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 1,332	$ 2,253

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Share Repurchase Program, Stock-Based Compensation and ESPP - Summary of Option and Restricted Stock Activity (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Options Outstanding, Number of Shares
Shares and Units Available for Grant, Beginning balance	7,055
Additional shares reserved under the 2011 equity incentive plan	3,478
Shares and Units Available for Grant, Granted	(476)
Shares and Units Available for Grant, Options exercised/ Restricted stock released
Shares and Units Available for Grant, RSU shares withheld for taxes	13
Shares and Units Available for Grant, Options Outstanding, Number of Shares	0
Shares and Units Available for Grant, Canceled/Forfeited	762
Shares and Units Available for Grant, Ending balance	10,832
Options Outstanding, Options, Weighted Average Exercise Price
Options Outstanding, Weighted Average Exercise Price, RSU shares withheld for taxes (in dollars per share) | $ / shares	$ 0.00
Employee Stock Option
Options Outstanding, Number of Shares
Options Outstanding, Number of Shares, Beginning Balance	10,616
Additional shares reserved under the 2011 equity incentive plan	0
Options Outstanding, Number of Shares, Granted	302
Options Outstanding, Number of Shares, Options exercised/ Restricted stock released	(24)
Options Outstanding, Number of Shares, Canceled /Forfeited	(312)
Options Outstanding, Number of Shares, Ending Balance	10,582
Options Outstanding, Options, Weighted Average Exercise Price
Options Outstanding, Weighted Average Exercise Price, Beginning Balance (in dollars per share) | $ / shares	$ 4.79
Options Outstanding, Weighted Average Exercise Price, Granted (in dollars per share) | $ / shares	3.90
Options Outstanding, Weighted Average Exercise Price, Options exercised/ Restricted stock released (in dollars per share) | $ / shares	3.93
Options Outstanding, Weighted Average Exercise Price, Canceled/Forfeited (in dollars per share) | $ / shares	5.42
Options Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share) | $ / shares	$ 4.75
Restricted Stock Outstanding
Options Outstanding, Number of Shares
Restricted Stock Outstanding Number of Shares, Beginning balance	4,552
Additional shares reserved under the 2011 equity incentive plan	0
Restricted Stock Outstanding Number of Shares, Granted	174
Restricted Stock Outstanding Number of Shares, Options exercised/ Restricted stock released	(242)
Shares and Units Available for Grant, Restricted Stock Outstanding, Number of Shares	13
Restricted Stock Outstanding Number of Shares, Canceled /Forfeited	(450)
Restricted Stock Outstanding Number of Shares, Ending balance	4,047

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Share Repurchase Program, Stock-Based Compensation and ESPP - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Jan. 01, 2016	Dec. 31, 2015	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount (up to)					$ 30,000,000.0
Stock repurchase program, remaining authorized amount	$ 21,500,000
Capitalized stock-based compensation related to internal-use software	$ 200,000	$ 0
Weighted average grant-date fair value of stock options granted (in dollars per share)	$ 2.08	$ 1.12
Grant date fair value	$ 18,200,000
Percentage of payroll deductions (percent)	10.00%
Percentage of purchase price of the shares on each purchase date is equal to the fair market value (percent)	85.00%
Common stock on the first and last trading days on offering period (in months)	12 months
Shares issued (in shares)	1,600
Shares available for future issuance (in shares)	10,832			7,055
Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
requisite service period (in years)	4 years
Restricted Stock Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price (in dollars per share)	$ 0.0001
Share-based payment award, award vesting period (in years)	4 years
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	1,500
Percentage of outstanding shares (percent)	1.00%
Shares available for future issuance (in shares)	3,300		900

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Income Taxes - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Gross amount of unrecognized tax benefits, which, if recognized, would affect effective tax rate	$ 0		$ 0
Income tax provision	1,288,000	$ 134,000
Income tax expense in domestic and foreign jurisdictions	700,000
Change in valuation allowance	600,000
Unrecognized tax benefits	$ 900,000		$ 900,000