Callidus Software (CALD) 10-Q 5 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 28, 2017
Document and Entity Information
Entity Registrant Name	CALLIDUS SOFTWARE INC
Entity Central Index Key	1,035,748
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		64,870,613
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 143,099	$ 148,008
Short-term investments	40,133	39,266
Accounts receivable, net of allowances of $1,264 and $1,536 at March 31, 2017 and December 31, 2016, respectively	52,029	55,464
Prepaid and other current assets	20,182	18,275
Total current assets	255,443	261,013
Property and equipment, net	42,087	35,456
Goodwill	64,111	63,957
Intangible assets, net	19,312	21,659
Deposits and other noncurrent assets	4,420	4,416
Total assets	385,373	386,501
Current liabilities:
Accounts payable	6,078	3,573
Accrued payroll and related expenses	13,262	17,831
Accrued expenses	20,859	15,126
Deferred revenue	102,926	99,758
Total current liabilities	143,125	136,288
Deferred revenue, noncurrent	1,860	3,209
Deferred income taxes, noncurrent	1,575	1,541
Other noncurrent liabilities	8,043	8,602
Total liabilities	154,603	149,640
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value; 100,000 shares authorized; 67,202 and 66,031 shares issued and 64,863 and 63,692 shares outstanding at March 31, 2017 and December 31, 2016, respectively	65	64
Additional paid-in capital	559,411	559,200
Treasury stock; 2,339 shares at March 31, 2017 and December 31, 2016	(14,430)	(14,430)
Accumulated other comprehensive loss	(4,546)	(5,141)
Accumulated deficit	(309,730)	(302,832)
Total stockholders’ equity	230,770	236,861
Total liabilities and stockholders’ equity	$ 385,373	$ 386,501

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowances (in dollars)	$ 1,264	$ 1,536
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	67,202,000	66,031,000
Common stock, shares outstanding	64,863,000	63,692,000
Treasury stock, shares	2,339,000	2,339,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Recurring	$ 46,197	$ 37,606
Services and license	11,944	10,772
Total revenue	58,141	48,378
Cost of revenue:
Recurring	13,022	9,962
Services and license	9,940	8,261
Total cost of revenue	22,962	18,223
Gross profit	35,179	30,155
Operating expenses:
Sales and marketing	22,691	18,903
Research and development	9,301	7,242
General and administrative	9,366	8,255
Restructuring and other	597	316
Total operating expenses	41,955	34,716
Operating loss	(6,776)	(4,561)
Interest income and other expense, net	65	225
Interest expense	(19)	(43)
Loss before provision for income taxes	(6,730)	(4,379)
Provision for income taxes	168	156
Net loss	$ (6,898)	$ (4,535)
Net loss per share
Basic and Diluted (in dollars per share)	$ (0.11)	$ (0.08)
Basic and Diluted (in shares)	64,368	56,690
Comprehensive loss:
Net loss	$ (6,898)	$ (4,535)
Unrealized gain on available-for-sale securities	(3)	48
Foreign currency translation adjustments	598	(395)
Comprehensive loss	$ (6,303)	$ (4,882)

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net loss	$ (6,898)	$ (4,535)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation expense	2,641	1,688
Amortization of intangible assets	1,899	1,360
Provision for doubtful accounts	205	529
Stock-based compensation	8,250	6,453
Loss on foreign currency from market-to-market derivative	1	78
Excess tax benefit from stock-based compensation	0	(21)
Deferred income taxes	1	71
Loss on disposal of property and equipment	3	0
Net amortization on investments	65	(45)
Changes in operating assets and liabilities:
Accounts receivable	3,231	195
Prepaid and other current assets	(2,401)	437
Other noncurrent assets	29	(3)
Accounts payable	2,423	(558)
Accrued expenses	(774)	1,073
Accrued payroll and related expenses	(4,577)	(3,188)
Accrued restructuring and other expenses	(210)	(266)
Deferred revenue	1,819	2,844
Net cash provided by operating activities	5,707	6,112
Cash flows from investing activities:
Purchases of investments	(2,823)	(3,700)
Proceeds from maturities and sale of investments	2,852	3,600
Purchases of property and equipment	(2,312)	(1,521)
Purchases of intangible assets	0	(267)
Acquisitions, net of cash acquired	(495)	0
Net cash used in investing activities	(2,778)	(1,888)
Cash flows from financing activities:
Proceeds from issuance of common stock	2,574	1,467
Restricted stock units acquired to settle employee withholding liability	(10,613)	(1,085)
Excess tax benefit from stock-based compensation	0	21
Payment of consideration related to acquisitions	(100)	(104)
Net cash (used in) provided by financing activities	(8,139)	299
Effect of foreign currency exchange rates on cash and cash equivalents	301	75
Net (decrease) increase in cash and cash equivalents	(4,909)	4,598
Cash and cash equivalents at beginning of period	148,008	77,232
Cash and cash equivalents at end of period	143,099
Supplemental disclosures of cash flow information:
Cash paid for income taxes	118	261
Interest Paid	37	0
Non-cash investing and financing activities:
Purchases of property and equipment through accounts payable and other current and non current accrued liabilities	$ 6,398	$ 3,548

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Summary of Accounting Policies All amounts included herein related to these condensed consolidated financial statements as of March 31, 2017 and for the three months ended March 31, 2017 and 2016 are unaudited and should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Annual Report on Form 10-K for the year ended December 31, 2016 for Callidus Software Inc., doing business as CallidusCloud ("Company"). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been condensed or omitted pursuant to the Securities and Exchange Commission ("SEC") rules and regulations regarding interim financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all necessary adjustments for the fair presentation of the Company’s financial position, results of operations and cash flows. The results of operations for the interim periods presented are not necessarily indicative of the operating results to be expected for any subsequent interim period or for the full fiscal year ending December 31, 2017 . The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, which include wholly-owned subsidiaries in Australia, Canada, Germany, Hong Kong, India, Ireland, Japan, Malaysia, Mexico, Netherlands, New Zealand, Serbia, Singapore and the United Kingdom. All intercompany transactions and balances have been eliminated upon consolidation. Use of Estimates Preparation of the unaudited condensed consolidated financial statements in conformity with GAAP and the rules and regulations of the SEC requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements, the reported amounts of revenue and expenses during the reporting period and the accompanying notes. Estimates are used for, but not limited to, the allocation of the value of purchase consideration for business acquisitions and other contingencies, allowances for doubtful accounts, the useful lives of fixed assets and intangible assets, the attainment of performance-based restricted stock units, stock-based compensation forfeiture rates, accrued liabilities and uncertain tax positions. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates such estimates and assumptions on an ongoing basis for continued reasonableness, using historical experience and other factors, including the current economic environment. Appropriate adjustments, if any, to the estimates used are made prospectively based upon such evaluation. Illiquid credit markets, volatile equity and foreign currency markets and fluctuations in information technology spending by prospective customers can increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ materially from those estimates. Changes in those estimates, if any, resulting from continuing changes in the economic environment, will be reflected in the consolidated financial statements in future periods. Revenue Recognition The Company generates revenue by providing software as a service ("SaaS") solutions through on-demand subscription and term licenses and related software maintenance, and professional services. Amounts that have been invoiced are recorded in accounts receivable and in deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Recurring Revenue. Recurring revenue, which includes SaaS revenue and maintenance revenue, is recognized ratably over the stated contractual period. SaaS revenue consists of subscription fees from customers accessing the Company's cloud-based service offerings. Maintenance revenue consists of fees from customers purchasing licenses and receiving support for such on-premise solutions. The Company also recognizes SaaS and maintenance revenue associated with customers using its products in excess of contracted usage ("Overages"). Overages are primarily attributed to SaaS products and such Overages are recorded in SaaS revenue in the period incurred. Revenue related to Overages was immaterial during the three month periods ended March 31, 2017 and 2016 . Service and License Revenue. Service and license revenue primarily consists of training, integration and configuration services. Generally, the Company's professional services arrangements are billed on a time-and-materials basis. Time and material services are recognized as the services are rendered based on inputs to the project, such as billable hours incurred. For fixed-fee professional services arrangements, the Company recognizes revenue under the proportional performance method of accounting and estimates the proportional performance on a monthly basis, utilizing hours incurred to date as a percentage of total estimated hours to complete the project. If the Company does not have a sufficient basis to measure progress toward completion, revenue is recognized upon completion. Service and license revenue also includes revenue from perpetual licenses, which is recognized upon delivery of the product, using the residual method, assuming all the other conditions for revenue recognition have been met. In a limited number of arrangements with non-standard acceptance criteria, the Company defers the revenue until the acceptance criteria are satisfied. Reimbursements, including those related to travel and out-of-pocket expenses, are included in services and license revenue, and an equivalent amount of reimbursable expenses is included in cost of services and license revenue. In general, recurring revenue agreements are entered into for 12 to 36 months, and the professional services are performed within nine months of entering into a contract with the customer, depending on the size of integration. SaaS agreements provide specified service level commitments, excluding scheduled maintenance. The failure to meet this level of service availability may require the Company to credit qualifying customers a portion of their subscription and support fees. Based on the Company's historical experience meeting its service level commitments, the Company does not currently have any liabilities on its balance sheet for these commitments. The Company recognizes revenue when all of the following conditions are met: • Persuasive evidence of an arrangement exists; • Delivery has occurred or services have been rendered; • The fees are fixed or determinable; and • Collection of the fees is reasonably assured. If the Company determines that any one of the four criteria is not met, it will defer recognition of revenue until all the criteria are met. Multiple-deliverable arrangements with on-demand subscription. For on-demand subscription agreements with multiple deliverables, the Company evaluates each element to determine whether it represents a separate unit of accounting. The Company determines the best estimated selling price of each deliverable in an arrangement based on a selling price hierarchy of methods contained in Finance Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2009-13, "Revenue Recognition (Accounting Standards Codification (“ASC”) Topic 605)- Multiple-Deliverable Revenue Arrangements." The best estimated selling price for a deliverable is based on its vendor-specific objective evidence (“VSOE”), if available, third-party evidence (“TPE”), if VSOE is not available, or estimated selling price (“ESP”), if neither VSOE nor TPE is available. Total arrangement fees are allocated to each element using the relative selling price method. The Company has currently established VSOE for most deliverables, except for fixed fee service arrangements and on-premise software licenses. The Company considered all of the following factors to establish the ESP for fixed fee service arrangements when sold with its on-demand services: the weighted average actual sales prices of professional services sold on a stand-alone basis for on-demand services; average billing rates for fixed fee service agreements when sold with on-demand services, cost plus a reasonable mark-up and other factors such as gross margin objectives, pricing practices and growth strategy. Multiple-deliverable arrangements with on-premise license. For arrangements with multiple deliverables, including license, professional services and maintenance, the Company recognizes license revenue using the residual method of accounting pursuant to the requirements of the guidance contained in ASC 985-605, "Software Revenue Recognition." Under the residual method, revenue is recognized when VSOE for fair value exists for all of the undelivered elements in the arrangement, but does not exist for one or more of the delivered elements in the arrangement. If evidence of fair value cannot be established for the undelivered elements, all of the revenue is deferred until evidence of fair value can be established, or until the items for which evidence of fair value cannot be established are delivered. For maintenance and certain professional services, the Company is able to establish VSOE because it has a sufficient history of selling these deliverables at an established price. The Company's revenue arrangements do not include a general right of return relative to the delivered products. Generally, for the Company's term-based licenses, if the only undelivered element is maintenance, the entire amount of revenue is recognized ratably over the maintenance period. Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenue. Recently Adopted Accounting Pronouncements In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation: Improvements to Employee Share-Based Payment Accounting , which simplifies various aspects related to the accounting and presentation of stock-based payments. The amendments require entities to record all tax effects related to stock-based payments at settlement or expiration through the income statement and the windfall tax benefit to be recorded when it arises, subject to normal valuation allowance considerations. All tax-related cash flows resulting from the stock-based payments are required to be reported as operating activities in the statement of cash flows. The updates relating to the income tax effects of the stock-based payments including the cash flow presentation was adopted prospectively. Further, the amendments allow the entities to make an accounting policy election to either estimate forfeitures or recognize forfeitures as they occur. The Company adopted this guidance during the first quarter of 2017. Adoption of the new standard did not have a material impact to the Company's condensed financial statements and resulted in the recognition of excess tax benefits to the Company's income taxes rather than paid-in capital. The Company elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized in each period. Recently Issued Accounting Pronouncements In October 2016, the FASB issued ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory. This guidance improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Under current U.S. GAAP, the recognition of current and deferred income taxes for an intra-entity asset transfer is prohibited until the asset has been sold to an outside party. Under the new standard, an entity will recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Two common examples of assets included in the scope of this update are intellectual property and property, plant and equipment. The amendments in this update are effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. The Company is currently evaluating the impact this ASU will have on its unaudited condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments . The guidance addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice for certain cash receipts and cash payments. The amendments in this guidance are effective for public business entities for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Entities are permitted to adopt the standard early in any interim or annual period, and a retrospective application is required. The Company is currently evaluating the impact this ASU will have on its unaudited condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which requires the recognition of assets and liabilities arising from lease transactions on the balance sheet and the disclosure of key information about leasing arrangements. Accordingly, a lessee will recognize a lease asset for its right to use the underlying asset and a lease liability for the corresponding lease obligation. Both the asset and liability will initially be measured at the present value of the future minimum lease payments over the lease term. Subsequent measurement, including the presentation of expenses and cash flows, will depend on the classification of the lease as either finance or an operating lease. Initial costs directly attributable to negotiating and arranging the lease will be included in the asset. For leases with a term of 12 months or less, a lessee can make an accounting policy election by class of underlying asset to not recognize an asset and corresponding liability. Lessees will also be required to provide additional qualitative and quantitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. These disclosures are intended to supplement the amounts recorded in the financial statements and provide additional information about the nature of an organization’s leasing activities. The new standard is effective for fiscal years beginning after December 15, 2018, and interim periods within those years, with early adoption permitted. In transition, lessees are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The transition guidance also provides specific guidance for sale and leaseback transactions, build-to-suit leases and amounts previously recognized in accordance with the business combinations guidance for leases. The updated standard is effective for the Company beginning in the first quarter of 2019. The Company is currently evaluating its expected adoption method and timeline, and the impact of this new standard on its unaudited condensed consolidated financial statements. The Company cannot reasonably estimate the impact that the adoption of this standard will have on its financial statements. In May 2014, August 2015, April 2016 and May 2016, the FASB issued ASU 2014-09, Revenue from Contracts with Customers , ASU 2015-14, Revenue from Contracts with Customers, Deferral of the Effective Date , ASU 2016-10, Revenue from Contracts with Customers, Identifying Performance Obligations and Licensing , and ASU 2016-12, Revenue from Contracts with Customers, Narrow-Scope Improvements and Practical Expedients , respectively, (collectively referred to as "Topic 606"). Topic 606 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers, and supersedes current revenue recognition guidance, including industry-specific guidance. It also requires entities to disclose both quantitative and qualitative information that enable financial statements users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The amendments in these ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. Early adoption is permitted for annual periods beginning after December 15, 2016, but the Company has elected not to early adopt. The two permitted transition methods under the new standard are the full retrospective method, in which case the standard would be applied to each prior reporting period presented and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The Company will adopt the guidance on January 1, 2018 and currently intends to elect the modified retrospective transition approach. The Company is in the process of evaluating the impact of the adoption of Topic 606 on its unaudited condensed consolidated financial statements. Except for the updated standards discussed above, there have been no new accounting pronouncements not yet effective that have significance, or potential significance, to the Company's unaudited condensed consolidated financial statements.

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Acquisitions	Acquisitions DataHug Ltd. On November 7, 2016, the Company acquired DataHug Ltd. ("DataHug"), a privately-held company and provider of SaaS predictive forecasting and sales analytics. The Company's purchase of DataHug is intended to utilize its unique, patented technology to deliver predictive analysis of sales pipelines that is easy to understand and visualize. The purchase consideration was $13.0 million which included $11.7 million paid in cash and a $1.3 million indemnity holdback to be paid one year from the date of the agreement. The preliminary purchase price allocation for DataHug is summarized as follows (in thousands): Fair Value Net liabilities assumed $ (600 ) Intangible assets 5,350 Goodwill 8,138 Total purchase price, net of cash acquired $ 12,888 Under the acquisition method of accounting, the Company allocated the purchase price to the identifiable assets and liabilities based on their estimated fair value at the date of acquisition. The fair value of the intangible assets at the date of acquisition require significant judgment, and were measured primarily based on inputs that are not observable in the market and thus represent a Level 3 measurement as defined in ASC 820, Fair Value Measurements. The methodologies used in valuing the intangible assets include, but are not limited to, multiple period excess earnings method for developed technology, with and without method for customer contracts and related relationships, the relief-from-royalty method for trademarks, tradenames and domain names and the multiple period excess earnings method for order backlog. The values assigned to the assets acquired and liabilities assumed are based on preliminary estimates of fair value available as of December 31, 2016, and may be adjusted during the measurement period of up to 12 months from the date of acquisition as further information becomes available. Any changes in the fair values of the assets acquired and liabilities assumed during the measurement period may result in adjustments to goodwill. As of March 31,2017, the primary areas that are not yet finalized due to information that may become available subsequently and may result in changes in the values assigned to various assets and liabilities, include the fair values of intangible assets and deferred tax liabilities as well as assumed tax assets and liabilities. The excess of the purchase price over the total net identifiable assets has been recorded as goodwill, which includes synergies expected from the expanded service capabilities and the value of the assembled workforce in accordance with generally accepted accounting principles. The goodwill balance is primarily attributed to the extension of the predictive analysis of the sales pipeline to the Company's Lead to Money suite. The goodwill balance is not deductible for income tax purposes. The Company did not record any in-process research and development intangible assets in connection with the acquisition. The following table sets forth the components of identifiable intangible assets acquired and their estimated useful lives, as of the date of the DataHug acquisition (in thousands): Fair Value Weighted Average Useful Life Consolidated statements of comprehensive loss Classification: Amortization expense Developed technology $ 3,800 4 years Cost of sales Customer contracts and related relationships $ 1,250 6 years Sales and marketing expense Trademarks / trade names / domain names 150 3 years General and administrative Order backlog 150 2 years Cost of sales Total intangible assets subject to amortization $ 5,350 The financial results of DataHug are included in the Company's unaudited condensed consolidated financial statements from the date of acquisition through March 31, 2017 . The acquisition of DataHug did not have a material impact on the Company's unaudited condensed consolidated financial statements and therefore pro forma disclosures have not been presented.

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2017
Financial Instruments
Financial Instruments	Financial Instruments As of March 31, 2017 and December 31, 2016 , all investment debt securities were classified as available-for-sale and carried at estimated fair value, which is determined based on the inputs discussed in Note 4. The Company classifies all highly liquid instruments with an original maturity on the date of purchase of three months or less as cash and cash equivalents. The Company classifies available-for-sale securities that have a maturity date longer than three months as short-term investments, including those investments with a maturity date of longer than one year that are highly liquid and which the Company does not intend to hold to maturity. Realized gains and losses are calculated using the specific identification method. As of March 31, 2017 and December 31, 2016 , the Company had no short-term investments in a material unrealized loss position. The components of the Company’s cash, cash equivalents, and investments classified as available-for-sale were as follows at March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 Amortized Cost Gross Gains Gross Losses Estimated Fair Value Cash $ 102,607 $ — $ — $ 102,607 Cash equivalents: Money market funds 40,492 — — 40,492 Total cash equivalents 40,492 — — 40,492 Total cash and cash equivalents $ 143,099 $ — $ — $ 143,099 Short-term investments: Certificates of deposits $ 1,200 $ — $ — $ 1,200 U.S. government and agency obligations 20,619 13 (14 ) 20,618 Corporate notes and obligations 18,316 9 (10 ) 18,315 Total short-term investments $ 40,135 $ 22 $ (24 ) $ 40,133 December 31, 2016 Amortized Cost Gross Gains Gross Losses Estimated Fair Value Cash $ 147,680 $ — $ — $ 147,680 Cash equivalents: Money market funds 328 — — 328 Total cash equivalents 328 — — 328 Total cash and cash equivalents $ 148,008 $ — $ — $ 148,008 Short-term investments: Certificate of deposits $ 1,200 $ — $ — $ 1,200 U.S. government and agency obligations 19,351 19 (18 ) 19,352 Corporate notes and obligations 18,716 18 (20 ) 18,714 Total short-term investments $ 39,267 $ 37 $ (38 ) $ 39,266 The market value and the amortized cost of available-for-sale debt securities by contractual maturities as of March 31, 2017 were as follows (in thousands): Contractual maturity Amortized Cost Estimated Fair value Less than 1 year $ 34,775 $ 34,761 Between 1 and 2 years 5,360 5,372 Total $ 40,135 $ 40,133 The Company had no realized gains or losses on sales of its investments for the three months ended March 31, 2017 and 2016 . The Company had immaterial net purchases from investments during the three months ended March 31, 2017 and $ 0.1 million during the three months ended March 31, 2016 . The short-term investments in highly rated credit securities generally have minor to moderate fluctuations in the fair values from period to period. The Company monitors credit ratings, downgrades and significant events surrounding these securities in order to assess whether any of the impairments will be considered other-than-temporary. The Company did not identify any securities held as of March 31, 2017 or as of December 31, 2016 for which the fair value declined significantly below amortized cost and were considered other-than-temporary impairments.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Valuation of Investments Level 1 and Level 2 The Company’s available-for-sale securities include money market funds, certificates of deposits, corporate notes, and U.S. government and agency obligations. The Company values these securities using a pricing matrix from a pricing service provider, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs). The Company classifies all of its available-for-sale securities, except for money market funds, as having Level 2 inputs. The Company validates the estimated fair value of certain securities from a pricing service provider on a quarterly basis. The valuation techniques used to measure the fair value of the financial instruments having Level 2 inputs, all of which have counterparties with high credit ratings, were derived from the following: non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments or pricing models, such as discounted cash flow techniques, with all significant inputs derived from or corroborated by observable market data. The Company measures financial assets and liabilities at fair value on an ongoing basis. The estimated fair value of the Company’s financial assets was determined using the following inputs at March 31, 2017 and December 31, 2016 (in thousands): Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs March 31, 2017 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 40,492 $ 40,492 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 20,618 — 20,618 — Corporate notes and obligations (2) 18,315 — 18,315 — Foreign currency derivative contracts (3) 15 — 15 $ — Total $ 80,640 $ 40,492 $ 40,148 $ — Liabilities: Foreign currency derivative contracts (4) $ 16 $ — $ 16 $ — Total $ 16 $ — $ 16 $ — Fair Value Measurements at Reporting Date Using Quoted Prices in Significant Significant December 31, 2016 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 328 $ 328 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 19,352 — 19,352 — Corporate notes and obligations (2) 18,714 — 18,714 — Foreign currency derivative contracts (3) 76 — 76 $ — Total $ 39,670 $ 328 $ 39,342 $ — Liabilities: Foreign currency derivative contracts (4) $ 53 $ — $ 53 $ — Total $ 53 $ — $ 53 $ — _____________________________________________________________________________ (1) Included in cash and cash equivalents on the unaudited condensed consolidated balance sheets. (2) Included in short-term investments on the unaudited condensed consolidated balance sheets. (3) Included in prepaid and other current assets on the unaudited condensed consolidated balance sheets. (4) Included in accrued expenses on the unaudited condensed consolidated balance sheets. Derivative Financial Instruments The Company entered into foreign currency derivative contracts with financial institutions to reduce the risk that its cash flows and earnings will be adversely affected by foreign currency exchange rate fluctuations. The Company uses forward currency derivative contracts to minimize the Company’s exposure to balances primarily denominated in Euros and Australian dollars. Foreign currency derivative contracts are marked-to-market at the end of each reporting period with gains and losses recognized as other expense to offset the gains or losses resulting from the settlement or remeasurement of the underlying foreign currency denominated cash, receivables and payables. Details on outstanding foreign currency derivative contracts related primarily to receivables and payables are presented below (in thousands): March 31, 2017 December 31, 2016 Notional amount of foreign currency derivative contracts $ 4,188 $ 3,850 Fair value of foreign currency derivative contracts $ 4,187 $ 3,873 The fair value of the Company’s outstanding derivative instruments are summarized below (in thousands): Fair Value of Derivative Instruments Balance Sheet Location March 31, 2017 December 31, 2016 Derivative Assets Derivatives not designated as hedging instruments: Foreign currency derivative contracts Prepaid expenses and other current assets $ 15 $ 75 Derivative Liabilities Derivatives not designated as hedging instruments: Foreign currency derivative contracts Accrued expenses $ 16 $ 52 The Company accounts for the derivative instruments at fair value with changes in the fair value recorded as a component of interest income and other income (expense), net. During both the three months ended March 31, 2017 and March 31, 2016 such changes were immaterial. The Company did not have any transfers of its fair value measurement between Level 1, Level 2 and Level 3 during the periods presented.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Except as discussed below, there were no material changes in the Company's commitments under contractual obligations as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2016 . During the three months ended March 31, 2017 , the Company entered into various contractual obligations, long-term operating lease obligations and unconditional purchase commitments. Future minimum lease payments under non-cancellable operating leases (with initial or remaining lease terms in excess of one year) and purchase commitments as of March 31, 2017 are as follows (in thousands): Unconditional Purchase Commitments (1) Operating Lease Commitments (2) Years ending: Remainder of 2017 $ 11,800 $ 2,964 2018 14,523 4,584 2019 11,269 4,277 2020 3,008 4,379 2021 — 4,049 2022 and beyond — 2,693 Future minimum payments $ 40,600 $ 22,946 (1) Primarily represents amounts associated with agreements that are enforceable, legally binding and specific terms, including: software purchases, data center equipment purchases and maintenance agreements. In addition, amounts include unconditional purchase agreements during the normal course of business with various vendors for future services. (2) The Company has facilities under non-cancellable operating lease agreements that expire at various dates through 2022. Letter of Credit The Company obtained a $1.4 million letter of credit on October 1, 2016 for its leased space in Dublin, California. The letter of credit will expire on October 1, 2017. As of March 31, 2017 there was no balance outstanding under this letter of credit. Revolver Line of Credit In May 2014, the Company entered into a credit agreement with Wells Fargo Bank, National Association ("Wells Fargo"), under which Wells Fargo agreed to make a revolving loan ("Revolver") to the Company in an amount not to exceed $ 15.0 million . The Revolver matures in May 2019. There is no balance outstanding as of March 31, 2017 . Pursuant to the agreement, the Company is required to maintain a leverage ratio of 3.00 :1.00 and minimum liquidity of $ 7.5 million . The Company has met these leverage and liquidity covenants. Outstanding borrowings under the Revolver bear interest, at the Company's option, at a base rate plus an applicable margin. The applicable margin ranges between 0.75% and 2.25% depending on the Company's leverage ratio. A fee of 0.25% per annum is payable with respect to the unused portion of the commitment. Interest is payable every three months. Warranties and Indemnification The Company generally warrants that its software will perform in accordance with its standard documentation. Under the Company’s standard warranty, should a software product not perform as specified in the documentation within the warranty period, the Company will repair or replace the software or refund the license fee paid. To date, the Company has not incurred any incremental costs related to warranty obligations for its software. The Company’s product license and on-demand agreements typically include a limited indemnification provision for claims by third parties relating to the Company’s intellectual property. To date, the Company has not incurred material costs, and has not accrued any costs, related to such indemnification provisions.

Restructuring and Other

Restructuring and Other	3 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Other	Restructuring and Other Restructuring and other expenses primarily consist of costs associated with exit from excess facilities, streamlining operations and employee terminations. The Company incurred restructuring and other expenses of $0.6 million and $0.3 million during the three months ended March 31, 2017 and March 31, 2016, respectively. The following tables set forth a summary of accrued restructuring and other expenses for the three months ended March 31, 2017 and 2016 (in thousands): December 31, 2016 Additions Adjustments Cash Payments March 31, 2017 Severance and termination related costs $ — $ 496 $ — $ (286 ) $ 210 Facilities related costs 269 101 — (101 ) 269 Total accrued restructuring and other expenses $ 269 $ 597 $ — $ (387 ) $ 479 December 31, 2015 Additions Adjustments Cash March 31, 2016 Facilities related costs $ 17 $ 316 $ 18 $ (68 ) $ 283 Total accrued restructuring and other expenses $ 17 $ 316 $ 18 $ (68 ) $ 283

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share Basic net loss per share is calculated by dividing net loss for the period by the weighted average common shares outstanding during the period. Diluted net loss per share is calculated by dividing the net loss for the period by the weighted average common shares outstanding, adjusted for all dilutive potential common shares, which includes shares issuable upon the exercise of outstanding common stock options, the release of restricted stock units and purchases of shares pursuant to the Company's employee stock purchase plan ("ESPP"), to the extent these shares are dilutive. For the three months ended March 31, 2017 and 2016 , the diluted net loss per share calculation was the same as the basic net loss per share calculation as all potential common shares were anti-dilutive. Diluted net loss per share does not include the effect of the following potential weighted average common shares because to do so would be anti-dilutive for the periods presented (in thousands): Three Months Ended March 31, 2017 2016 Restricted Stock Units 3,790 3,417 Stock Options 399 637 ESPP Shares 19 19 Total 4,208 4,073 The weighted average exercise price per share of stock options excluded for both the three months ended March 31, 2017 and March 31, 2016 was $ 6.68 .

Stock-based Compensation

Stock-based Compensation	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based Compensation	Stock-based Compensation Expense Summary Stock-based compensation expense is measured based on the grant-date fair value of the stock-based awards. The Company recognizes stock-based compensation expense, for the portion of the awards that are ultimately expected to vest, on a straight-line basis over the requisite service period for those awards with graded vesting and service conditions. The table below sets forth a summary of stock-based compensation expense for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended March 31, 2017 2016 Stock options $ 145 $ 145 Restricted stock units Performance-based awards 1,420 1,179 Service-based awards 6,338 4,758 ESPP shares 347 371 Total stock-based compensation $ 8,250 $ 6,453 As of March 31, 2017 , there was total unrecognized compensation expense of $38.2 million , $9.0 million , $0.2 million , and $ 1.2 million related to service-based awards, performance-based awards, stock options, and ESPP shares, respectively, which were expected to be recognized over weighted average periods of 2.0 years, 2.0 years, 0.3 years, and 0.6 years, respectively. The table below sets forth the functional classification of stock-based compensation expense for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended March 31, 2017 2016 Cost of recurring revenue $ 423 $ 509 Cost of services and license 631 512 Sales and marketing 2,537 2,154 Research and development 1,632 1,170 General and administrative 3,027 2,108 Total stock-based compensation $ 8,250 $ 6,453 Performance-based Awards In 2017, the Company granted performance-based restricted stock units with vesting contingent on successful attainment of pre-set SaaS revenue growth and pre-set operating margin targets over the three-year period from January 1, 2017 through December 31, 2019. During the three months ended March 31, 2017, the Company recognized expense of $ 0.3 million , net of forfeiture. In 2016, the Company granted performance-based restricted stock units with vesting contingent on attainment of pre-set SaaS revenue growth and pre-set recurring revenue gross profit target over the three-year period from January 1, 2016 through December 31, 2018 and performance-based restricted stock units with vesting contingent upon the Company's relative total shareholder return over the same three-year period compared to an index of 17 SaaS companies in the Company's executive compensation peer group. During the three months ended March 31, 2017 and March 31, 2016, the Company recognized expense of, $ 0.1 million for each period, net of forfeiture. In 2015, the Company granted performance-based restricted stock units with vesting contingent on successful attainment of pre-set SaaS revenue growth target over the three -year period from July 1, 2015 through June 30, 2018. During the three months ended March 31, 2017 and March 31, 2016, the Company recognized expense of $0.7 million and $0.4 million , net of forfeiture. In 2014, the Company granted performance-based restricted stock units with vesting contingent on absolute SaaS revenue growth over the three-year period from January 1, 2014 through December 31, 2016, and on the Company's relative total shareholder return over the same three-year period compared to an index of 17 SaaS companies. During the three months ended March 31, 2017 and March 31, 2016, the Company recognized expense of $0.3 million and $0.8 million , net of forfeiture. During the three months ended March 31, 2017 these performance shares vested. Determination of Fair Value The fair value of service-based awards is estimated based on the market value of the Company’s stock on the date of grant. Fair value of the performance-based awards, that are subject to SaaS revenue growth and Non-GAAP operating margin is estimated based on the market value of the awards at the date of the grant, adjusted by the respective SaaS revenue growth and Non-GAAP operating margin probability assessment. Fair value of the performance awards that are subject to relative stockholder return and market conditions, is calculated using a Monte Carlo simulation model that estimates the distribution of the potential outcomes of the grants of performance awards based on simulated future index of the peer companies. The fair value of each stock option is estimated on the date of grant using the Black-Scholes valuation model. No stock options were granted during the three months ended March 31, 2017 and March 31, 2016 . The fair value of each ESPP share is estimated on the enrollment date of the offering period using the Black-Scholes valuation model and the assumptions noted in the following table: Three Months Ended March 31, Employee Stock Purchase Plan 2017 2016 Expected life (in years) 0.50 to 1.00 0.50 to 1.00 Risk-free interest rate 0.65% to 0.82% 0.42% to 0.51% Volatility 33.0% to 33.1% 45% to 51% Dividend yield None None

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense for each of the three months ended March 31, 2017 and March 31, 2016 was $0.2 million . For both the three months ended March 31, 2017 and 2016, the income tax expense is mainly attributable to sales to foreign customers subject to withholding taxes. In addition, during the three months ended March 31, 2017, the Company adopted FASB issued ASU 2016-09, Compensation-Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which resulted in the recognition of excess tax benefits in the Company's provision for income taxes rather than paid-in capital. Given the Company's current valuation allowance position in the United States jurisdiction, the adoption of this guidance did not have a material impact on its unaudited condensed consolidated financial statements.

Segment, Geographic and Custome

Segment, Geographic and Customer Information	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment, Geographic and Customer Information	Segment, Geographic and Customer Information The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, who in the Company's case is the chief executive officer, in deciding how to allocate resources and assess performance. The Company's chief executive officer ("CEO") is considered to be the chief operating decision maker. The CEO reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. By this definition, the Company operates in one business segment, which is the development, marketing and sale of the Company's cloud-based sales, marketing, learning and customer experience solutions. The following table summarizes revenue for the three months ended March 31, 2017 and 2016 by geographic areas (in thousands): Three Months Ended March 31, 2017 2016 United States and Canada $ 47,525 $ 39,885 EMEA 6,485 4,876 Asia Pacific 2,965 2,542 Other 1,166 1,075 $ 58,141 $ 48,378 As of March 31, 2017 the Company's goodwill balance was $64.1 million , of which $15.8 million was located in the U.K. and Ireland (EMEA) and the Company's intangible asset balance of $19.3 million , of which $5.3 million was located in the U.K. and Ireland (EMEA). No other individual country outside the U.S. accounted for more than 10% of the goodwill and intangible asset balance as of March 31, 2017. During the three months ended March 31, 2017 and 2016 , no customer accounted for more than 10% of total revenue.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Related-Party Transactions	Related-Party Transactions Lithium Technologies, Inc. In the normal course of business, the Company entered into agreements with Lithium Technologies, Inc. (“Lithium”), whose Chief Financial Officer is a member of the Company's Board of Directors. On August 31, 2016, that member of the Company's Board of Directors ceased to be the Chief Financial Officer of Lithium Technologies, Inc. In 2015, Lithium entered into a three -year SaaS subscription agreement with the Company in the amount of $ 0.1 million per year, from which the Company recognized $ 34,065 and $37,613 in SaaS revenue during the quarter ended March 31, 2017 and March 31, 2016, respectively. In addition, the Company entered into various agreements with Lithium for professional services, and recognized $ 2,463 and $4,290 during the quarter ended March 31, 2017 and March 31, 2016, respectively. TIBCO Software Inc. During 2016, the Company renewed an annual subscription services agreement for $ 0.1 million with TIBCO Software Inc. ("TIBCO"), whose chief executive officer and director is a member of the Company's Board of Directors. The original agreement had been entered into between TIBCO and ViewCentral prior to the Company's acquisition of the assets of ViewCentral, and the renewal was at the same terms as the original agreement. Further, the Company recognized $ 29,497 of revenue in connection with this arrangement during quarter ended March 31, 2017 and none during the quarter ended March 31, 2016.

Summary of Significant Accoun17

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Accounting Policies	Basis of Presentation and Summary of Accounting Policies All amounts included herein related to these condensed consolidated financial statements as of March 31, 2017 and for the three months ended March 31, 2017 and 2016 are unaudited and should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Annual Report on Form 10-K for the year ended December 31, 2016 for Callidus Software Inc., doing business as CallidusCloud ("Company"). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been condensed or omitted pursuant to the Securities and Exchange Commission ("SEC") rules and regulations regarding interim financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all necessary adjustments for the fair presentation of the Company’s financial position, results of operations and cash flows. The results of operations for the interim periods presented are not necessarily indicative of the operating results to be expected for any subsequent interim period or for the full fiscal year ending December 31, 2017 . The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, which include wholly-owned subsidiaries in Australia, Canada, Germany, Hong Kong, India, Ireland, Japan, Malaysia, Mexico, Netherlands, New Zealand, Serbia, Singapore and the United Kingdom. All intercompany transactions and balances have been eliminated upon consolidation.
Use of Estimates	Use of Estimates Preparation of the unaudited condensed consolidated financial statements in conformity with GAAP and the rules and regulations of the SEC requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements, the reported amounts of revenue and expenses during the reporting period and the accompanying notes. Estimates are used for, but not limited to, the allocation of the value of purchase consideration for business acquisitions and other contingencies, allowances for doubtful accounts, the useful lives of fixed assets and intangible assets, the attainment of performance-based restricted stock units, stock-based compensation forfeiture rates, accrued liabilities and uncertain tax positions. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates such estimates and assumptions on an ongoing basis for continued reasonableness, using historical experience and other factors, including the current economic environment. Appropriate adjustments, if any, to the estimates used are made prospectively based upon such evaluation. Illiquid credit markets, volatile equity and foreign currency markets and fluctuations in information technology spending by prospective customers can increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ materially from those estimates. Changes in those estimates, if any, resulting from continuing changes in the economic environment, will be reflected in the consolidated financial statements in future periods.
Revenue Recognition	Revenue Recognition The Company generates revenue by providing software as a service ("SaaS") solutions through on-demand subscription and term licenses and related software maintenance, and professional services. Amounts that have been invoiced are recorded in accounts receivable and in deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Recurring Revenue. Recurring revenue, which includes SaaS revenue and maintenance revenue, is recognized ratably over the stated contractual period. SaaS revenue consists of subscription fees from customers accessing the Company's cloud-based service offerings. Maintenance revenue consists of fees from customers purchasing licenses and receiving support for such on-premise solutions. The Company also recognizes SaaS and maintenance revenue associated with customers using its products in excess of contracted usage ("Overages"). Overages are primarily attributed to SaaS products and such Overages are recorded in SaaS revenue in the period incurred. Revenue related to Overages was immaterial during the three month periods ended March 31, 2017 and 2016 . Service and License Revenue. Service and license revenue primarily consists of training, integration and configuration services. Generally, the Company's professional services arrangements are billed on a time-and-materials basis. Time and material services are recognized as the services are rendered based on inputs to the project, such as billable hours incurred. For fixed-fee professional services arrangements, the Company recognizes revenue under the proportional performance method of accounting and estimates the proportional performance on a monthly basis, utilizing hours incurred to date as a percentage of total estimated hours to complete the project. If the Company does not have a sufficient basis to measure progress toward completion, revenue is recognized upon completion. Service and license revenue also includes revenue from perpetual licenses, which is recognized upon delivery of the product, using the residual method, assuming all the other conditions for revenue recognition have been met. In a limited number of arrangements with non-standard acceptance criteria, the Company defers the revenue until the acceptance criteria are satisfied. Reimbursements, including those related to travel and out-of-pocket expenses, are included in services and license revenue, and an equivalent amount of reimbursable expenses is included in cost of services and license revenue. In general, recurring revenue agreements are entered into for 12 to 36 months, and the professional services are performed within nine months of entering into a contract with the customer, depending on the size of integration. SaaS agreements provide specified service level commitments, excluding scheduled maintenance. The failure to meet this level of service availability may require the Company to credit qualifying customers a portion of their subscription and support fees. Based on the Company's historical experience meeting its service level commitments, the Company does not currently have any liabilities on its balance sheet for these commitments. The Company recognizes revenue when all of the following conditions are met: • Persuasive evidence of an arrangement exists; • Delivery has occurred or services have been rendered; • The fees are fixed or determinable; and • Collection of the fees is reasonably assured. If the Company determines that any one of the four criteria is not met, it will defer recognition of revenue until all the criteria are met. Multiple-deliverable arrangements with on-demand subscription. For on-demand subscription agreements with multiple deliverables, the Company evaluates each element to determine whether it represents a separate unit of accounting. The Company determines the best estimated selling price of each deliverable in an arrangement based on a selling price hierarchy of methods contained in Finance Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2009-13, "Revenue Recognition (Accounting Standards Codification (“ASC”) Topic 605)- Multiple-Deliverable Revenue Arrangements." The best estimated selling price for a deliverable is based on its vendor-specific objective evidence (“VSOE”), if available, third-party evidence (“TPE”), if VSOE is not available, or estimated selling price (“ESP”), if neither VSOE nor TPE is available. Total arrangement fees are allocated to each element using the relative selling price method. The Company has currently established VSOE for most deliverables, except for fixed fee service arrangements and on-premise software licenses. The Company considered all of the following factors to establish the ESP for fixed fee service arrangements when sold with its on-demand services: the weighted average actual sales prices of professional services sold on a stand-alone basis for on-demand services; average billing rates for fixed fee service agreements when sold with on-demand services, cost plus a reasonable mark-up and other factors such as gross margin objectives, pricing practices and growth strategy. Multiple-deliverable arrangements with on-premise license. For arrangements with multiple deliverables, including license, professional services and maintenance, the Company recognizes license revenue using the residual method of accounting pursuant to the requirements of the guidance contained in ASC 985-605, "Software Revenue Recognition." Under the residual method, revenue is recognized when VSOE for fair value exists for all of the undelivered elements in the arrangement, but does not exist for one or more of the delivered elements in the arrangement. If evidence of fair value cannot be established for the undelivered elements, all of the revenue is deferred until evidence of fair value can be established, or until the items for which evidence of fair value cannot be established are delivered. For maintenance and certain professional services, the Company is able to establish VSOE because it has a sufficient history of selling these deliverables at an established price. The Company's revenue arrangements do not include a general right of return relative to the delivered products. Generally, for the Company's term-based licenses, if the only undelivered element is maintenance, the entire amount of revenue is recognized ratably over the maintenance period. Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenue.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation: Improvements to Employee Share-Based Payment Accounting , which simplifies various aspects related to the accounting and presentation of stock-based payments. The amendments require entities to record all tax effects related to stock-based payments at settlement or expiration through the income statement and the windfall tax benefit to be recorded when it arises, subject to normal valuation allowance considerations. All tax-related cash flows resulting from the stock-based payments are required to be reported as operating activities in the statement of cash flows. The updates relating to the income tax effects of the stock-based payments including the cash flow presentation was adopted prospectively. Further, the amendments allow the entities to make an accounting policy election to either estimate forfeitures or recognize forfeitures as they occur. The Company adopted this guidance during the first quarter of 2017. Adoption of the new standard did not have a material impact to the Company's condensed financial statements and resulted in the recognition of excess tax benefits to the Company's income taxes rather than paid-in capital. The Company elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized in each period. Recently Issued Accounting Pronouncements In October 2016, the FASB issued ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory. This guidance improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Under current U.S. GAAP, the recognition of current and deferred income taxes for an intra-entity asset transfer is prohibited until the asset has been sold to an outside party. Under the new standard, an entity will recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Two common examples of assets included in the scope of this update are intellectual property and property, plant and equipment. The amendments in this update are effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. The Company is currently evaluating the impact this ASU will have on its unaudited condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments . The guidance addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice for certain cash receipts and cash payments. The amendments in this guidance are effective for public business entities for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Entities are permitted to adopt the standard early in any interim or annual period, and a retrospective application is required. The Company is currently evaluating the impact this ASU will have on its unaudited condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which requires the recognition of assets and liabilities arising from lease transactions on the balance sheet and the disclosure of key information about leasing arrangements. Accordingly, a lessee will recognize a lease asset for its right to use the underlying asset and a lease liability for the corresponding lease obligation. Both the asset and liability will initially be measured at the present value of the future minimum lease payments over the lease term. Subsequent measurement, including the presentation of expenses and cash flows, will depend on the classification of the lease as either finance or an operating lease. Initial costs directly attributable to negotiating and arranging the lease will be included in the asset. For leases with a term of 12 months or less, a lessee can make an accounting policy election by class of underlying asset to not recognize an asset and corresponding liability. Lessees will also be required to provide additional qualitative and quantitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. These disclosures are intended to supplement the amounts recorded in the financial statements and provide additional information about the nature of an organization’s leasing activities. The new standard is effective for fiscal years beginning after December 15, 2018, and interim periods within those years, with early adoption permitted. In transition, lessees are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The transition guidance also provides specific guidance for sale and leaseback transactions, build-to-suit leases and amounts previously recognized in accordance with the business combinations guidance for leases. The updated standard is effective for the Company beginning in the first quarter of 2019. The Company is currently evaluating its expected adoption method and timeline, and the impact of this new standard on its unaudited condensed consolidated financial statements. The Company cannot reasonably estimate the impact that the adoption of this standard will have on its financial statements. In May 2014, August 2015, April 2016 and May 2016, the FASB issued ASU 2014-09, Revenue from Contracts with Customers , ASU 2015-14, Revenue from Contracts with Customers, Deferral of the Effective Date , ASU 2016-10, Revenue from Contracts with Customers, Identifying Performance Obligations and Licensing , and ASU 2016-12, Revenue from Contracts with Customers, Narrow-Scope Improvements and Practical Expedients , respectively, (collectively referred to as "Topic 606"). Topic 606 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers, and supersedes current revenue recognition guidance, including industry-specific guidance. It also requires entities to disclose both quantitative and qualitative information that enable financial statements users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The amendments in these ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. Early adoption is permitted for annual periods beginning after December 15, 2016, but the Company has elected not to early adopt. The two permitted transition methods under the new standard are the full retrospective method, in which case the standard would be applied to each prior reporting period presented and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The Company will adopt the guidance on January 1, 2018 and currently intends to elect the modified retrospective transition approach. The Company is in the process of evaluating the impact of the adoption of Topic 606 on its unaudited condensed consolidated financial statements. Except for the updated standards discussed above, there have been no new accounting pronouncements not yet effective that have significance, or potential significance, to the Company's unaudited condensed consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables) - DataHug, Ltd.	3 Months Ended
	Mar. 31, 2017
Business Acquisition [Line Items]
Schedule of Business Acquisitions, by Acquisition	The preliminary purchase price allocation for DataHug is summarized as follows (in thousands): Fair Value Net liabilities assumed $ (600 ) Intangible assets 5,350 Goodwill 8,138 Total purchase price, net of cash acquired $ 12,888
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination	The following table sets forth the components of identifiable intangible assets acquired and their estimated useful lives, as of the date of the DataHug acquisition (in thousands): Fair Value Weighted Average Useful Life Consolidated statements of comprehensive loss Classification: Amortization expense Developed technology $ 3,800 4 years Cost of sales Customer contracts and related relationships $ 1,250 6 years Sales and marketing expense Trademarks / trade names / domain names 150 3 years General and administrative Order backlog 150 2 years Cost of sales Total intangible assets subject to amortization $ 5,350

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Financial Instruments
Summary of cash, cash equivalents and investments classified as available-for-sale	The components of the Company’s cash, cash equivalents, and investments classified as available-for-sale were as follows at March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 Amortized Cost Gross Gains Gross Losses Estimated Fair Value Cash $ 102,607 $ — $ — $ 102,607 Cash equivalents: Money market funds 40,492 — — 40,492 Total cash equivalents 40,492 — — 40,492 Total cash and cash equivalents $ 143,099 $ — $ — $ 143,099 Short-term investments: Certificates of deposits $ 1,200 $ — $ — $ 1,200 U.S. government and agency obligations 20,619 13 (14 ) 20,618 Corporate notes and obligations 18,316 9 (10 ) 18,315 Total short-term investments $ 40,135 $ 22 $ (24 ) $ 40,133 December 31, 2016 Amortized Cost Gross Gains Gross Losses Estimated Fair Value Cash $ 147,680 $ — $ — $ 147,680 Cash equivalents: Money market funds 328 — — 328 Total cash equivalents 328 — — 328 Total cash and cash equivalents $ 148,008 $ — $ — $ 148,008 Short-term investments: Certificate of deposits $ 1,200 $ — $ — $ 1,200 U.S. government and agency obligations 19,351 19 (18 ) 19,352 Corporate notes and obligations 18,716 18 (20 ) 18,714 Total short-term investments $ 39,267 $ 37 $ (38 ) $ 39,266
Schedule of contractual maturities of available-for-sale debt securities	The market value and the amortized cost of available-for-sale debt securities by contractual maturities as of March 31, 2017 were as follows (in thousands): Contractual maturity Amortized Cost Estimated Fair value Less than 1 year $ 34,775 $ 34,761 Between 1 and 2 years 5,360 5,372 Total $ 40,135 $ 40,133

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Valuation of Investments Level 1 and Level 2 The Company’s available-for-sale securities include money market funds, certificates of deposits, corporate notes, and U.S. government and agency obligations. The Company values these securities using a pricing matrix from a pricing service provider, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs). The Company classifies all of its available-for-sale securities, except for money market funds, as having Level 2 inputs. The Company validates the estimated fair value of certain securities from a pricing service provider on a quarterly basis. The valuation techniques used to measure the fair value of the financial instruments having Level 2 inputs, all of which have counterparties with high credit ratings, were derived from the following: non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments or pricing models, such as discounted cash flow techniques, with all significant inputs derived from or corroborated by observable market data. The Company measures financial assets and liabilities at fair value on an ongoing basis. The estimated fair value of the Company’s financial assets was determined using the following inputs at March 31, 2017 and December 31, 2016 (in thousands): Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs March 31, 2017 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 40,492 $ 40,492 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 20,618 — 20,618 — Corporate notes and obligations (2) 18,315 — 18,315 — Foreign currency derivative contracts (3) 15 — 15 $ — Total $ 80,640 $ 40,492 $ 40,148 $ — Liabilities: Foreign currency derivative contracts (4) $ 16 $ — $ 16 $ — Total $ 16 $ — $ 16 $ — Fair Value Measurements at Reporting Date Using Quoted Prices in Significant Significant December 31, 2016 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 328 $ 328 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 19,352 — 19,352 — Corporate notes and obligations (2) 18,714 — 18,714 — Foreign currency derivative contracts (3) 76 — 76 $ — Total $ 39,670 $ 328 $ 39,342 $ — Liabilities: Foreign currency derivative contracts (4) $ 53 $ — $ 53 $ — Total $ 53 $ — $ 53 $ — _____________________________________________________________________________ (1) Included in cash and cash equivalents on the unaudited condensed consolidated balance sheets. (2) Included in short-term investments on the unaudited condensed consolidated balance sheets. (3) Included in prepaid and other current assets on the unaudited condensed consolidated balance sheets. (4) Included in accrued expenses on the unaudited condensed consolidated balance sheets. Derivative Financial Instruments The Company entered into foreign currency derivative contracts with financial institutions to reduce the risk that its cash flows and earnings will be adversely affected by foreign currency exchange rate fluctuations. The Company uses forward currency derivative contracts to minimize the Company’s exposure to balances primarily denominated in Euros and Australian dollars. Foreign currency derivative contracts are marked-to-market at the end of each reporting period with gains and losses recognized as other expense to offset the gains or losses resulting from the settlement or remeasurement of the underlying foreign currency denominated cash, receivables and payables. Details on outstanding foreign currency derivative contracts related primarily to receivables and payables are presented below (in thousands): March 31, 2017 December 31, 2016 Notional amount of foreign currency derivative contracts $ 4,188 $ 3,850 Fair value of foreign currency derivative contracts $ 4,187 $ 3,873 The fair value of the Company’s outstanding derivative instruments are summarized below (in thousands): Fair Value of Derivative Instruments Balance Sheet Location March 31, 2017 December 31, 2016 Derivative Assets Derivatives not designated as hedging instruments: Foreign currency derivative contracts Prepaid expenses and other current assets $ 15 $ 75 Derivative Liabilities Derivatives not designated as hedging instruments: Foreign currency derivative contracts Accrued expenses $ 16 $ 52 The Company accounts for the derivative instruments at fair value with changes in the fair value recorded as a component of interest income and other income (expense), net. During both the three months ended March 31, 2017 and March 31, 2016 such changes were immaterial. The Company did not have any transfers of its fair value measurement between Level 1, Level 2 and Level 3 during the periods presented.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The estimated fair value of the Company’s financial assets was determined using the following inputs at March 31, 2017 and December 31, 2016 (in thousands): Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs March 31, 2017 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 40,492 $ 40,492 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 20,618 — 20,618 — Corporate notes and obligations (2) 18,315 — 18,315 — Foreign currency derivative contracts (3) 15 — 15 $ — Total $ 80,640 $ 40,492 $ 40,148 $ — Liabilities: Foreign currency derivative contracts (4) $ 16 $ — $ 16 $ — Total $ 16 $ — $ 16 $ — Fair Value Measurements at Reporting Date Using Quoted Prices in Significant Significant December 31, 2016 Total (Level 1) (Level 2) (Level 3) Assets: Money market funds (1) $ 328 $ 328 $ — $ — Certificates of deposit (2) 1,200 — 1,200 — U.S. government and agency obligations (2) 19,352 — 19,352 — Corporate notes and obligations (2) 18,714 — 18,714 — Foreign currency derivative contracts (3) 76 — 76 $ — Total $ 39,670 $ 328 $ 39,342 $ — Liabilities: Foreign currency derivative contracts (4) $ 53 $ — $ 53 $ — Total $ 53 $ — $ 53 $ — _____________________________________________________________________________ (1) Included in cash and cash equivalents on the unaudited condensed consolidated balance sheets. (2) Included in short-term investments on the unaudited condensed consolidated balance sheets. (3) Included in prepaid and other current assets on the unaudited condensed consolidated balance sheets. (4) Included in accrued expenses on the unaudited condensed consolidated balance sheets. Derivative Financial Instruments The Company entered into foreign currency derivative contracts with financial institutions to reduce the risk that its cash flows and earnings will be adversely affected by foreign currency exchange rate fluctuations. The Company uses forward currency derivative contracts to minimize the Company’s exposure to balances primarily denominated in Euros and Australian dollars. Foreign currency derivative contracts are marked-to-market at the end of each reporting period with gains and losses recognized as other expense to offset the gains or losses resulting from the settlement or remeasurement of the underlying foreign currency denominated cash, receivables and payables. Details on outstanding foreign currency derivative contracts related primarily to receivables and payables are presented below (in thousands): March 31, 2017 December 31, 2016 Notional amount of foreign currency derivative contracts $ 4,188 $ 3,850 Fair value of foreign currency derivative contracts $ 4,187 $ 3,873 The fair value of the Company’s outstanding derivative instruments are summarized below (in thousands): Fair Value of Derivative Instruments Balance Sheet Location March 31, 2017 December 31, 2016 Derivative Assets Derivatives not designated as hedging instruments: Foreign currency derivative contracts Prepaid expenses and other current assets $ 15 $ 75 Derivative Liabilities Derivatives not designated as hedging instruments: Foreign currency derivative contracts Accrued expenses $ 16 $ 52 The Company accounts for the derivative instruments at fair value with changes in the fair value recorded as a component of interest income and other income (expense), net. During both the three months ended March 31, 2017 and March 31, 2016 such changes were immaterial. The Company did not have any transfers of its fair value measurement between Level 1, Level 2 and Level 3 during the periods presented.

Commitments and Contingencies -

Commitments and Contingencies - (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]	Future minimum lease payments under non-cancellable operating leases (with initial or remaining lease terms in excess of one year) and purchase commitments as of March 31, 2017 are as follows (in thousands): Unconditional Purchase Commitments (1) Operating Lease Commitments (2) Years ending: Remainder of 2017 $ 11,800 $ 2,964 2018 14,523 4,584 2019 11,269 4,277 2020 3,008 4,379 2021 — 4,049 2022 and beyond — 2,693 Future minimum payments $ 40,600 $ 22,946 (1) Primarily represents amounts associated with agreements that are enforceable, legally binding and specific terms, including: software purchases, data center equipment purchases and maintenance agreements. In addition, amounts include unconditional purchase agreements during the normal course of business with various vendors for future services. (2) The Company has facilities under non-cancellable operating lease agreements that expire at various dates through 2022.

Restructuring and Other (Tables

Restructuring and Other (Tables)	3 Months Ended
	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Summary of accrued restructuring expenses	The following tables set forth a summary of accrued restructuring and other expenses for the three months ended March 31, 2017 and 2016 (in thousands): December 31, 2016 Additions Adjustments Cash Payments March 31, 2017 Severance and termination related costs $ — $ 496 $ — $ (286 ) $ 210 Facilities related costs 269 101 — (101 ) 269 Total accrued restructuring and other expenses $ 269 $ 597 $ — $ (387 ) $ 479 December 31, 2015 Additions Adjustments Cash March 31, 2016 Facilities related costs $ 17 $ 316 $ 18 $ (68 ) $ 283 Total accrued restructuring and other expenses $ 17 $ 316 $ 18 $ (68 ) $ 283

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Schedule of potential weighted average common shares excluded from computation of diluted net loss per share	Diluted net loss per share does not include the effect of the following potential weighted average common shares because to do so would be anti-dilutive for the periods presented (in thousands): Three Months Ended March 31, 2017 2016 Restricted Stock Units 3,790 3,417 Stock Options 399 637 ESPP Shares 19 19 Total 4,208 4,073

Stock-based Compensation (Table

Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of stock-based compensation expenses	The table below sets forth a summary of stock-based compensation expense for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended March 31, 2017 2016 Stock options $ 145 $ 145 Restricted stock units Performance-based awards 1,420 1,179 Service-based awards 6,338 4,758 ESPP shares 347 371 Total stock-based compensation $ 8,250 $ 6,453
Schedule of functional classification of stock-based compensation expense	The table below sets forth the functional classification of stock-based compensation expense for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended March 31, 2017 2016 Cost of recurring revenue $ 423 $ 509 Cost of services and license 631 512 Sales and marketing 2,537 2,154 Research and development 1,632 1,170 General and administrative 3,027 2,108 Total stock-based compensation $ 8,250 $ 6,453
Schedule of valuation assumptions for determining the fair value of stock options and employee stock purchase plans	The fair value of each ESPP share is estimated on the enrollment date of the offering period using the Black-Scholes valuation model and the assumptions noted in the following table: Three Months Ended March 31, Employee Stock Purchase Plan 2017 2016 Expected life (in years) 0.50 to 1.00 0.50 to 1.00 Risk-free interest rate 0.65% to 0.82% 0.42% to 0.51% Volatility 33.0% to 33.1% 45% to 51% Dividend yield None None

Segment, Geographic and Custo25

Segment, Geographic and Customer Information (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Summary of revenues by geographic areas	The following table summarizes revenue for the three months ended March 31, 2017 and 2016 by geographic areas (in thousands): Three Months Ended March 31, 2017 2016 United States and Canada $ 47,525 $ 39,885 EMEA 6,485 4,876 Asia Pacific 2,965 2,542 Other 1,166 1,075 $ 58,141 $ 48,378

Acquisitions - Acquisitions (De

Acquisitions - Acquisitions (Details) - USD ($) $ in Thousands	Nov. 07, 2016	Mar. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 64,111	$ 63,957
DataHug, Ltd.
Business Acquisition [Line Items]
Purchase consideration	$ 13,000
Payments to acquire businesses, gross	11,700
Consideration held back for stakeholder expenses	$ 1,300
Consideration held back for stakeholder expenses, period	1 year
Net liabilities assumed	$ (600)
Intangible assets	5,350
Goodwill	8,138
Finite-lived intangible assets acquired	5,350
Total purchase price, net of cash acquired	$ 12,888
DataHug, Ltd. | Customer contracts
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)	6 years
DataHug, Ltd. | Customer contracts | Sales and marketing
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 1,250
DataHug, Ltd. | Developed technology
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)	4 years
DataHug, Ltd. | Developed technology | Cost of sales
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 3,800
DataHug, Ltd. | Trademarks/Trade names/Domain names
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)	3 years
DataHug, Ltd. | Trademarks/Trade names/Domain names | General and administrative
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 150
DataHug, Ltd. | Order or Production Backlog
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)	2 years
DataHug, Ltd. | Order or Production Backlog | General and administrative
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 150

Financial Instruments (Details)

Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015
Financial instruments
Cash and cash equivalents	$ 143,099	$ 148,008	$ 77,232	$ 81,830
Cash and cash equivalents
Financial instruments
Cash and cash equivalents	143,099	148,008
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value, Cash and Cash Equivalents	143,099	148,008
Cash
Financial instruments
Cash and cash equivalents	102,607	147,680
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value, Cash and Cash Equivalents	102,607	147,680
Money market funds
Financial instruments
Cash and cash equivalents	40,492	328
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value, Cash and Cash Equivalents	40,492	328
Cash equivalents
Financial instruments
Cash and cash equivalents	40,492	328
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value, Cash and Cash Equivalents	40,492	328
Short-term investments
Financial instruments
Amortized Cost	40,135	39,267
Gross Unrealized Gains	22	37
Gross Unrealized Losses	(24)	(38)
Estimated FV, Available for Sale Securities	40,133	39,266
Certificates of deposit
Financial instruments
Amortized Cost	1,200	1,200
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated FV, Available for Sale Securities	1,200	1,200
U.S. government and agency obligations
Financial instruments
Amortized Cost	20,619	19,351
Gross Unrealized Gains	13	19
Gross Unrealized Losses	(14)	(18)
Estimated FV, Available for Sale Securities	20,618	19,352
Corporate notes and obligations
Financial instruments
Amortized Cost	18,316	18,716
Gross Unrealized Gains	9	18
Gross Unrealized Losses	(10)	(20)
Estimated FV, Available for Sale Securities	$ 18,315	$ 18,714

Financial Instruments (Details

Financial Instruments (Details 2)	3 Months Ended
	Mar. 31, 2017USD ($)investment	Mar. 31, 2016USD ($)	Dec. 31, 2016investment
Contractual maturity, Amortized Cost
Less than 1 year	$ 34,775,000
Between 1 and 2 years	5,360,000
Total	40,135,000
Contractual maturity, Estimated Fair value
Less than 1 year	34,761,000
Between 1 and 2 years	5,372,000
Total	$ 40,133,000
Other disclosures pertaining to available-for-sale securities
Short-term investments in a material unrealized loss position with maturities of greater than 12 months | investment	0		0
Realized gains or losses on sales of investments	$ 0	$ 0
Purchases of investments, net of proceeds from maturities of investments		$ 100,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Ongoing basis - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Estimate of Fair Value Measurement
Assets:
Assets, Fair Value		$ 80,640	$ 39,670
Liabilities:
Derivative Liability		16	53
Liabilities, Fair Value		16	53
Money market funds | Estimate of Fair Value Measurement
Assets:
Assets, Fair Value	[1]	40,492	328
Certificates of deposit | Estimate of Fair Value Measurement
Assets:
Assets, Fair Value	[2]	1,200	1,200
U.S. government and agency obligations | Estimate of Fair Value Measurement
Assets:
Assets, Fair Value	[2]	20,618	19,352
Corporate notes and obligations | Estimate of Fair Value Measurement
Assets:
Assets, Fair Value	[2]	18,315	18,714
Derivative Financial Instruments, Assets [Member] | Estimate of Fair Value Measurement
Assets:
Assets, Fair Value		15		$ 76
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Assets, Fair Value		40,492	328
Liabilities:
Derivative Liability			0
Liabilities, Fair Value		0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds
Assets:
Assets, Fair Value	[1]	40,492	328
Quoted Prices in Active Markets for Identical Assets (Level 1) | Certificates of deposit
Assets:
Assets, Fair Value	[2]	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government and agency obligations
Assets:
Assets, Fair Value	[2]	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate notes and obligations
Assets:
Assets, Fair Value	[2]	0	0
Significant Other Observable Inputs (Level 2)
Assets:
Assets, Fair Value		40,148	39,342
Liabilities:
Derivative Liability		16	53
Liabilities, Fair Value		16	53
Significant Other Observable Inputs (Level 2) | Money market funds
Assets:
Assets, Fair Value	[1]	0	0
Significant Other Observable Inputs (Level 2) | Certificates of deposit
Assets:
Assets, Fair Value	[2]	1,200	1,200
Significant Other Observable Inputs (Level 2) | U.S. government and agency obligations
Assets:
Assets, Fair Value	[2]	20,618	19,352
Significant Other Observable Inputs (Level 2) | Corporate notes and obligations
Assets:
Assets, Fair Value	[2]	18,315	18,714
Significant Other Observable Inputs (Level 2) | Derivative Financial Instruments, Assets [Member]
Assets:
Assets, Fair Value		15		$ 76
Significant Unobservable Inputs (Level 3)
Assets:
Assets, Fair Value		0	0
Liabilities:
Derivative Liability		0	0
Liabilities, Fair Value		0	0
Significant Unobservable Inputs (Level 3) | Money market funds
Assets:
Assets, Fair Value	[1]	0	0
Significant Unobservable Inputs (Level 3) | Certificates of deposit
Assets:
Assets, Fair Value	[2]	0	0
Significant Unobservable Inputs (Level 3) | U.S. government and agency obligations
Assets:
Assets, Fair Value	[2]	0	0
Significant Unobservable Inputs (Level 3) | Corporate notes and obligations
Assets:
Assets, Fair Value	[2]	$ 0	$ 0
[1]	Included in cash and cash equivalents on the unaudited condensed consolidated balance sheets.
[2]	Included in short-term investments on the unaudited condensed consolidated balance sheets.

Commitments and Contingencies30

Commitments and Contingencies - Maturity Schedule (Details) $ in Thousands	Mar. 31, 2017USD ($)
Recorded Unconditional Purchase Obligation, Fiscal Year Maturity Schedule [Abstract]
Remainder of 2017	$ 11,800
2,018	14,523
2,019	11,269
2,020	3,008
2,021	0
2022 and beyond	0
Future minimum payments	40,600
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Remainder of 2017	2,964
2,018	4,584
2,019	4,277
2,020	4,379
2,021	4,049
2022 and beyond	2,693
Future minimum payments	$ 22,946

Commitments and Contingencies (

Commitments and Contingencies (Details)	3 Months Ended
	Mar. 31, 2017USD ($)	Jun. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Contractual cash obligations
Line of credit outstanding	$ 0
Line of Credit | Wells Fargo Credit Agreement
Contractual cash obligations
Line of credit, borrowing capacity			$ 15,000,000
Minimum liquidity		$ 7,500,000
Line of Credit | Wells Fargo Credit Agreement | Revolving Credit Facility
Contractual cash obligations
Required leverage ratio	3
Commitment fee percentage	0.25%
Line of Credit | Wells Fargo Credit Agreement | Minimum | Revolving Credit Facility
Contractual cash obligations
Basis spread on variable rate	0.75%
Line of Credit | Wells Fargo Credit Agreement | Maximum | Revolving Credit Facility
Contractual cash obligations
Basis spread on variable rate	2.25%
Letter of Credit | Dublin (CA) Headquarters
Contractual cash obligations
Line of credit facility, increase	$ 1,400,000
Line of credit	$ 0

Restructuring and Other (Detail

Restructuring and Other (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 597	$ 316
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	269	17
Additions	597	316
Adjustments	0	18
Cash Payments	(387)	(68)
Balance at the end of the period	479	283
Severance and termination-related costs
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	0
Adjustments	0
Balance at the end of the period	210
Facilities related costs
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	269	17
Additions	101	316
Adjustments	0	18
Cash Payments		(68)
Balance at the end of the period	$ 269	$ 283

Net Loss Per Share Net Income (

Net Loss Per Share Net Income (Loss) Per Share (Calculation of basic and diluted net income (loss) per share) (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share, Diluted
Anti-dilutive securities excluded from computation of diluted net loss per share (in shares)	4,208	4,073
Restricted Stock Units
Earnings Per Share, Diluted
Anti-dilutive securities excluded from computation of diluted net loss per share (in shares)	3,790	3,417
Stock Options
Earnings Per Share, Diluted
Anti-dilutive securities excluded from computation of diluted net loss per share (in shares)	399	637
Antidilutive securities excluded from computation of earnings per share, weighted average exercise price	$ 6.68	$ 6.68
ESPP shares
Earnings Per Share, Diluted
Anti-dilutive securities excluded from computation of diluted net loss per share (in shares)	19	19

Stock-based Compensation (Detai

Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Stock-based compensation
Stock-based compensation expense	$ 8,250	$ 6,453
Stock options
Stock-based compensation
Stock-based compensation expense	145	145
Compensation expense not yet recognized	$ 200
Recognition period for compensation expense not yet recognized	3 months 22 days
Performance-based awards
Stock-based compensation
Stock-based compensation expense	$ 1,420	1,179
Compensation expense not yet recognized	$ 9,000
Recognition period for compensation expense not yet recognized	1 year 11 months 20 days
Service-based awards
Stock-based compensation
Stock-based compensation expense	$ 6,338	4,758
Compensation expense not yet recognized	$ 38,200
Recognition period for compensation expense not yet recognized	2 years 3 days
ESPP shares
Stock-based compensation
Stock-based compensation expense	$ 347	371
Compensation expense not yet recognized	$ 1,200
Recognition period for compensation expense not yet recognized	7 months
Granted in 2015 | Performance stock units
Stock-based compensation
Stock-based compensation expense	$ 700	$ 400

Stock-based Compensation (Det35

Stock-based Compensation (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Classification of stock-based compensation expense
Stock-based compensation expense	$ 8,250	$ 6,453
Cost of recurring revenues
Classification of stock-based compensation expense
Stock-based compensation expense	423	509
Cost of services and other revenues
Classification of stock-based compensation expense
Stock-based compensation expense	631	512
Sales and marketing
Classification of stock-based compensation expense
Stock-based compensation expense	2,537	2,154
Research and development
Classification of stock-based compensation expense
Stock-based compensation expense	1,632	1,170
General and administrative
Classification of stock-based compensation expense
Stock-based compensation expense	$ 3,027	$ 2,108

Stock-based Compensation (Det36

Stock-based Compensation (Details 3) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Stock-based compensation
Stock-based compensation expense	$ 8,250	$ 6,453
Performance stock units
Stock-based compensation
Performance period			3 years
Performance stock units | Granted in 2017
Stock-based compensation
Stock-based compensation expense	300
Performance stock units | Granted in 2016
Stock-based compensation
Stock-based compensation expense	100
Performance stock units | Granted in 2015
Stock-based compensation
Stock-based compensation expense	700	400
ESPP shares
Stock-based compensation
Stock-based compensation expense	$ 347	$ 371
Fair value assumptions using the Black-Scholes-Merton valuation model
Risk-free interest rate, minimum (as a percent)	0.65%	0.42%
Risk-free interest rate, maximum (as a percent)	0.82%	0.51%
Volatility, minimum (as a percent)	33.00%	45.00%
Volatility, maximum (as a percent)	33.10%	51.00%
Dividend yield (as a percent)	0.00%	0.00%
ESPP shares | Minimum
Fair value assumptions using the Black-Scholes-Merton valuation model
Expected life (in years)	6 months	6 months
ESPP shares | Maximum
Fair value assumptions using the Black-Scholes-Merton valuation model
Expected life (in years)	1 year	1 year

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 168	$ 156

Segment, Geographic and Custo38

Segment, Geographic and Customer Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)segmentcustomer	Mar. 31, 2016USD ($)customer	Dec. 31, 2016USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment	1
Revenues by geographic area
Goodwill	$ 64,111		$ 63,957
Revenues	58,141	$ 48,378
Intangible assets, net	$ 19,312		$ 21,659
Number of customers accounted for more than 10% of total revenues | customer	0	0
United States
Revenues by geographic area
Revenues	$ 47,525	$ 39,885
EMEA
Revenues by geographic area
Revenues	6,485	4,876
Asia Pacific
Revenues by geographic area
Revenues	2,965	2,542
Other
Revenues by geographic area
Revenues	1,166	$ 1,075
Europe
Revenues by geographic area
Goodwill	15,800
Intangible assets, net	$ 5,300

Related Party Transactions (Det

Related Party Transactions (Details) - Lithium - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Subscription Arrangement
Related party transactions
Revenue recongnized in related party transaction	$ 100,000
Subscription Arrangement | Affiliated Entity
Related party transactions
Agreement term				3 years
Service Agreements
Related party transactions
Revenue recongnized in related party transaction	2,463	$ 4,290
Annual subscription recorded in prepaid expense and other current assets			$ 100,000
Service Agreements | Affiliated Entity
Related party transactions
Revenue recongnized in related party transaction	34,065	$ 37,613
Hosting Agreement
Related party transactions
Revenue recongnized in related party transaction	$ 29,497