Interactive Intelligence 10-Q 6 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	Interactive Intelligence Group, Inc.
Entity Central Index Key	1,517,650
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		22,079,013
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 114,549,000	$ 94,808,000
Short-term investments	58,558,000	64,182,000
Accounts receivable, net of allowance for doubtful accounts of $1,998 at March 31, 2016 and $1,508 at December 31, 2015	87,107,000	106,950,000
Prepaid expenses	37,252,000	32,709,000
Other current assets	12,301,000	13,264,000
Total current assets	309,767,000	311,913,000
Long-term investments	24,934,000	30,503,000
Property and equipment, net	42,755,000	44,837,000
Capitalized software, net	42,733,000	43,783,000
Goodwill	42,573,000	41,848,000
Intangible assets, net	14,449,000	14,427,000
Other assets, net	6,283,000	6,222,000
Total assets	483,494,000	493,533,000
Current liabilities:
Accounts payable	10,209,000	10,571,000
Accrued liabilities	17,787,000	17,157,000
Accrued compensation and related expenses	13,576,000	18,910,000
Deferred license and hardware revenues	4,298,000	7,823,000
Deferred recurring revenues	96,276,000	92,773,000
Deferred services revenues	15,367,000	14,979,000
Total current liabilities	157,513,000	162,213,000
Convertible notes	119,619,000	118,022,000
Long-term deferred revenues	19,158,000	19,834,000
Deferred tax liabilities, net	2,229,000	2,143,000
Other long-term liabilities	7,645,000	7,291,000
Total liabilities	306,164,000	309,503,000
Shareholders' equity:
Common stock, $0.01 par value; 100,000,000 authorized; 22,065,052 issued and outstanding at March 31, 2016, 21,821,895 issued and outstanding at December 31, 2015	221,000	218,000
Additional paid-in capital	242,060,000	237,496,000
Accumulated other comprehensive loss, net of tax	(9,259,000)	(11,244,000)
Accumulated deficit	(55,692,000)	(42,440,000)
Total shareholders' equity	177,330,000	184,030,000
Total liabilities and shareholders' equity	$ 483,494,000	$ 493,533,000

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Accounts receivable, allowance for doubtful accounts	$ 1,998	$ 1,508
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	22,065,052	21,821,895
Common stock, shares outstanding (in shares)	22,065,052	21,821,895

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Recurring	$ 64,290	$ 54,212
License and hardware	21,378	21,621
Services	13,613	13,642
Total revenues	99,281	89,475
Costs of revenues:
Costs of recurring	22,436	18,744
Costs of license and hardware	6,391	6,529
Costs of services	11,551	11,251
Total costs of revenues	40,378	36,524
Gross profit	58,903	52,951
Operating expenses:
Sales and marketing	34,436	31,109
Research and development	22,780	13,837
General and administrative	12,510	12,776
Total operating expenses	69,726	57,722
Operating loss	(10,823)	(4,771)
Other expense:
Interest (expense) income, net	(1,837)	148
Other expense	(251)	(327)
Total other expense	(2,088)	(179)
Loss before income taxes	(12,911)	(4,950)
Income tax (expense) benefit	(341)	1,491
Net loss	$ (13,252)	$ (3,459)
Net loss per share:
Basic (in dollars per share)	$ (0.60)	$ (0.16)
Diluted (in dollars per share)	$ (0.60)	$ (0.16)
Shares used to compute net loss per share:
Basic (shares)	22,007	21,447
Diluted (shares)	22,007	21,447
Amounts include amortization of purchased intangibles from business combinations
Total intangible amortization expense	$ 603	$ 626
Amounts include stock-based compensation expense
Total stock-based compensation expense	3,969	2,993
Costs of license and hardware revenues
Amounts include amortization of purchased intangibles from business combinations
Total intangible amortization expense	186	177
General and administrative
Amounts include amortization of purchased intangibles from business combinations
Total intangible amortization expense	417	449
Amounts include stock-based compensation expense
Total stock-based compensation expense	701	1,030
Costs of recurring revenues
Amounts include stock-based compensation expense
Total stock-based compensation expense	393	432
Costs of services revenues
Amounts include stock-based compensation expense
Total stock-based compensation expense	274	129
Sales and marketing
Amounts include stock-based compensation expense
Total stock-based compensation expense	817	561
Research and development
Amounts include stock-based compensation expense
Total stock-based compensation expense	$ 1,754	$ 819

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (13,252)	$ (3,459)
Other comprehensive loss:
Foreign currency translation adjustment	1,737	(3,262)
Net unrealized investment gain - net of tax	248	59
Comprehensive loss	$ (11,267)	$ (6,662)

Condensed Consolidated Stateme6

Condensed Consolidated Statement of Shareholders' Equity - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning Balance at Dec. 31, 2015	$ 184,030	$ 218	$ 237,496	$ (11,244)	$ (42,440)
Beginning Balance (in shares) at Dec. 31, 2015	21,821,895	21,822,000
Net loss	$ (13,252)				(13,252)
Stock-based compensation expense	4,075		4,075
Exercise of stock options	1,745	$ 3	1,742
Exercise of stock options (shares)		94,000
Issuances of common stock	458		458
Issuances of common stock (shares)		15,000
Tax withholding on restricted stock unit awards	(1,711)		(1,711)
Tax withholding on restricted stock unit awards (shares)		134,000
Foreign currency translation adjustment	1,737			1,737
Net unrealized investment gain (shares)	248			248
Ending Balance at Mar. 31, 2016	$ 177,330	$ 221	$ 242,060	$ (9,259)	$ (55,692)
Ending Balance (in shares) at Mar. 31, 2016	22,065,052	22,065,000

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net loss	$ (13,252)	$ (3,459)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	4,447	4,736
Amortization	2,992	626
Other non-cash items	(214)	(1,352)
Stock-based compensation expense	3,969	2,993
Deferred income taxes	86	(160)
Amortization of investment premium	64	124
Loss on disposal of fixed assets	279	5
Amortization of debt issuance costs	176	0
Amortization of debt discount	1,421	0
Changes in operating assets and liabilities:
Accounts receivable	19,843	12,425
Prepaid expenses	(4,543)	122
Other current assets	963	(1,051)
Accounts payable	(362)	199
Accrued liabilities	690	1,040
Accrued compensation and related expenses	(5,334)	(2,133)
Deferred license and hardware revenues	(3,539)	2,174
Deferred recurring revenues	3,403	(1,199)
Deferred services revenues	(174)	(18)
Other assets and liabilities	293	785
Net cash provided by operating activities	11,208	15,857
Investing activities:
Sales of available-for-sale investments	29,741	14,805
Purchases of available-for-sale investments	(18,364)	0
Purchases of property and equipment	(1,964)	(6,260)
Capitalized software	(1,312)	(5,872)
Net cash provided by investing activities	8,101	2,673
Financing activities:
Repayments of Long-term Capital Lease Obligations	(60)	0
Proceeds from stock options exercised	1,745	1,497
Proceeds from issuance of common stock	458	388
Tax withholding on restricted stock unit awards	(1,711)	(2,306)
Net cash provided by (used in) financing activities	432	(421)
Net increase in cash and cash equivalents	19,741	18,109
Cash and cash equivalents, beginning of period	94,808	36,168
Cash and cash equivalents, end of period	114,549	54,277
Cash paid during the period for:
Interest	8	0
Income taxes	728	120
Non-cash financing and investing activities:
Stock Issued	0	2,523
Other non-cash item:
Purchase of property and equipment payable at end of period	$ 450	$ 746

FINANCIAL STATEMENT PRESENTATIO

FINANCIAL STATEMENT PRESENTATION	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
FINANCIAL STATEMENT PRESENTATION	FINANCIAL STATEMENT PRESENTATION The accompanying unaudited condensed consolidated financial statements of Interactive Intelligence Group, Inc. (together with its consolidated subsidiaries, "the Company," "we," "us" and "our") have been prepared in conformity with accounting principles generally accepted in the United States of America ("GAAP") and with the instructions for Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, certain information and note disclosures normally included in the Company's financial statements prepared in accordance with GAAP have been condensed, or omitted, pursuant to the rules and regulations of the United States Securities and Exchange Commission (the "SEC"). The preparation of the Company's condensed consolidated financial statements requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, at the respective balance sheet dates, and the reported amounts of revenues and expenses during the respective reporting periods. Despite management's best effort to establish good faith estimates and assumptions, actual results could differ from these estimates. In management's opinion, the Company's accompanying condensed consolidated financial statements include all adjustments necessary (which are of a normal and recurring nature, except as otherwise noted) for the fair presentation of the results of the interim periods presented. The Company's accompanying condensed consolidated financial statements as of December 31, 2015 have been derived from the Company's audited consolidated financial statements at that date but do not include all of the information and notes required by GAAP for complete financial statements. These accompanying condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements for the year ended December 31, 2015 , included in the Company's most recent Annual Report on Form 10-K as filed with the SEC on February 29, 2016. The Company's results of operations for any interim period are not necessarily indicative of the results of operations for any other interim period or for a full fiscal year. Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries after elimination of all significant intercompany accounts and transactions. Revisions and Adjustments The Company corrected an immaterial error in its previously issued condensed consolidated statement of cash flows for the three months ended March 31, 2015. The Company reclassified its 2014 401(k) match from a financing activity on the condensed consolidated statement of cash flows to a non-cash financing activity, as the 401(k) match was issued in the form of shares during the first quarter of 2015. The revision did not have any impact on the quarterly results for 2016.

SUMMARY OF CERTAIN ACCOUNTING P

SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS	3 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS	SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS For a complete summary of the Company's significant accounting policies and critical accounting estimates, refer to Note 2 of Notes to Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015 . In March 2016, the Financial Accounting Standards Board ("FASB") issued FASB Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation ("FASB ASU 2016-09"), which includes the simplification of several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. Public business entities must apply the new requirements in fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any entity in any interim or annual period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The Company is evaluating the effect that FASB ASU 2016-09 will have on its consolidated financial statements and related disclosures. The Company has not yet adopted the amendments nor has it determined the effect of the guidance on its ongoing financial reporting. In February 2016, the FASB issued FASB ASU No. 2016-02, Leases ("FASB ASU 2016-02), which amends the FASB Accounting Standards Codification ("ASC") to increase transparency and comparability among organizations by requiring companies to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. Public business entities must apply the new requirements in fiscal years beginning after December 15, 2018, including interim periods within those years. All entities have the option of applying the amendments as of an earlier date for financial statements that have not been previously issued. The Company is evaluating the effect that FASB ASU 2016-02 will have on its consolidated financial statements and related disclosures. The Company has not yet adopted the amendments nor has it determined the effect of the guidance on its ongoing financial reporting. In May 2014, the FASB issued FASB ASU No. 2014-09, Revenue from Contracts with Customers ("FASB ASU 2014-09"), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. FASB ASU 2014-09 will replace most existing U.S. GAAP revenue recognition guidance when it becomes effective. As originally issued, the new standard was to become effective for the Company on January 1, 2017, and early adoption is not permitted. In August 2015, the FASB issued FASB ASU No. 2015-14, Deferral of the Effective Date , which declared a one-year deferral of the effective date of the new revenue recognition standard. As a result, the new standard will become effective for the Company beginning with the first quarter of 2018. FASB ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that FASB ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the guidance on its ongoing financial reporting. The Company capitalizes certain costs related to its multi-tenant cloud offering, PureCloud SM ("PureCloud"), and certain projects described below for internal use in accordance with FASB ASC 350-40, Internal Use Software . Once a product has reached the development stage, internal and external costs, if direct and incremental, are capitalized until the software is substantially complete and ready for its intended use. The capitalization of costs ceases upon completion of all substantial testing. Costs incurred in the preliminary stages of development, maintenance and training costs are expensed as incurred. During the three months ended March 31, 2016 and 2015 , the Company capitalized $1.0 million and $5.6 million , respectively, of costs related to the development of its PureCloud Platform. The Company will continue to capitalize development costs related to new PureCloud functionality and will begin amortizing such costs once that functionality is released for general availability. The Company also capitalizes costs related to implementing new business systems to meet its internal business needs. The Company has no substantive plans to market such software externally. During the three months ended March 31, 2016 and 2015 , the Company capitalized $400,000 and $900,000 , respectively, of costs associated with development and implementation of these systems. During the three months ended March 31, 2016 , there were no other material changes to the Company's significant accounting policies or critical accounting estimates.

NET LOSS PER SHARE

NET LOSS PER SHARE	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
NET LOSS PER SHARE	NET LOSS PER SHARE Basic net loss per share is calculated based on the weighted-average number of common shares outstanding in accordance with FASB ASC Topic 260, Earnings per Share . Diluted net income per share is calculated based on the weighted-average number of common shares outstanding plus the effect of dilutive potential common shares. When the Company reports a net loss, the calculation of diluted net loss per share excludes potential common shares as the effect would be anti-dilutive. Potential common shares consist of shares of common stock issuable upon the exercise of stock options and vesting of restricted stock units ("RSUs"). The following table sets forth the calculation of basic and diluted net loss per share (in thousands, except per share amounts): Three Months Ended 2016 2015 Net loss, as reported (A) $ (13,252 ) $ (3,459 ) Weighted average shares of common stock outstanding (B) 22,007 21,447 Dilutive effect of employee stock options and RSUs — — Common stock and common stock equivalents (C) 22,007 21,447 Net loss per share: Basic (A/B) $ (0.60 ) $ (0.16 ) Diluted (A/C) (0.60 ) (0.16 ) The Company's calculation of diluted net loss per share for the three months ended March 31, 2016 and 2015 excludes RSUs and stock options to purchase approximately 839,000 and 374,000 shares of the Company's common stock, respectively, as their inclusion would be anti-dilutive.

INVESTMENTS

INVESTMENTS	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
INVESTMENTS	INVESTMENTS FASB ASC Topic 820, Fair Value Measurement ("FASB ASC 820"), as amended, defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. FASB ASC 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes the following three levels of inputs that may be used to measure fair value: • Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. • Level 2 - Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company's short-term investments all mature in less than one year and its long-term investments all mature within three years. Both short-term and long-term investments are considered available for sale. The Company's assets that are measured at fair value on a recurring basis are classified within Level 1 or Level 2 of the fair value hierarchy. The types of instruments valued based on quoted market prices in active markets include money market securities. Such instruments are classified within Level 1 of the fair value hierarchy. The Company invests in money market funds that are traded daily and does not adjust the quoted price for such instruments. The types of instruments valued based on quoted prices in less active markets, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency include corporate notes, U.S. government securities, asset-backed securities, agency bonds and commercial paper. Such instruments are classified within Level 2 of the fair value hierarchy. The Company uses consensus pricing, which is based on multiple pricing sources, to value its fixed income investments. The following table sets forth a summary of the Company's financial assets, classified as cash and cash equivalents, short-term investments and long-term investments on its condensed consolidated balance sheets, measured at fair value as of March 31, 2016 and December 31, 2015 (in thousands): Fair Value Measurements at March 31, 2016 Using Description Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash & cash equivalents: Cash $ 98,021 $ 98,021 $ — $ — Money market funds 16,528 16,528 — — Total $ 114,549 $ 114,549 $ — $ — Short-term investments: Corporate notes $ 35,363 $ — $ 35,363 $ — U.S. government securities 13,514 — 13,514 — Asset-backed securities 4,686 — 4,686 — Agency bonds 3,496 — 3,496 — Commercial paper 1,499 — 1,499 — Total $ 58,558 $ — $ 58,558 $ — Long-term investments: Corporate notes $ 23,226 $ — $ 23,226 $ — Asset-backed securities 1,708 — 1,708 — Total $ 24,934 $ — $ 24,934 $ — Fair Value Measurements at December 31, 2015 Using Description Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash & cash equivalents: Cash $ 91,974 $ 91,974 $ — $ — Money market funds 2,834 2,834 — — Total $ 94,808 $ 94,808 $ — $ — Short-term investments: Corporate notes $ 27,105 $ — $ 27,105 $ — Agency bonds 27,002 — 27,002 — Asset-backed securities 4,681 — 4,681 — U.S. government securities 3,896 — 3,896 — Commercial paper 1,498 — 1,498 — Total $ 64,182 $ — $ 64,182 $ — Long-term investments: Corporate notes $ 29,504 $ — $ 29,504 $ — Asset-backed securities 999 $ — 999 — Total $ 30,503 $ — $ 30,503 $ —

ACCOUNTS RECEIVABLE AND CONCENT

ACCOUNTS RECEIVABLE AND CONCENTRATION OF CREDIT RISK	3 Months Ended
	Mar. 31, 2016
Risks and Uncertainties [Abstract]
ACCOUNTS RECEIVABLE AND CONCENTRATION OF CREDIT RISK	ACCOUNTS RECEIVABLE AND CONCENTRATION OF CREDIT RISK The Company evaluates the creditworthiness of its customers and partners on a periodic basis and generally does not require collateral. The Company records unbilled accounts receivable, which represents amounts recognized as revenues for invoices that have not yet been sent to customers. This balance fluctuates depending on the contractual billing milestones and work performed related to projects specified in the contract. When the work performed is ahead of the billing milestones related to a services engagement, unbilled accounts receivable will be recorded. The balance of unbilled accounts receivable recorded within accounts receivable on the condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 was $8.5 million and $9.6 million , respectively. In addition, the Company records deferred revenues, which represent cash collections for which the Company cannot yet recognize revenues. The balance of deferred revenues also fluctuates depending on the contractual billing milestones and work performed related to projects specified in the contract. When the billing milestones and related cash collections occur prior to the product or service being delivered, deferred revenues will be recorded. The balance of deferred revenues recorded on the condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 was $135.1 million and $135.4 million , respectively. No customer or partner accounted for more than 10% of the Company's accounts receivable as of March 31, 2016 or December 31, 2015 or for more than 10% of the Company's revenues for the three months ended March 31, 2016 or 2015 . The Company's top five partners collectively represented 13% and 14% of the Company's accounts receivables balance at March 31, 2016 and December 31, 2015 , respectively.

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION Stock Option Plan The Company's 2006 Equity Incentive Plan, as amended and as assumed by Interactive Intelligence Group, Inc. (the "2006 Plan") authorizes the Board of Directors or the Compensation Committee, as applicable, to grant incentive and nonqualified stock options, stock appreciation rights, restricted stock, RSUs, performance shares, performance units and other stock-based awards. After adoption of the 2006 Plan by the Company's shareholders in May 2006, the Company may no longer make any grants under previous plans. At the Company's 2013 Annual Meeting of Shareholders held on May 22, 2013, the Company's shareholders approved an amendment to the 2006 Plan which increased the number of shares available for issuance under the 2006 Plan by 2,000,000 shares. A maximum of 9,050,933 shares are available for delivery under the 2006 Plan. The number of shares available under the 2006 Plan is subject to adjustment for certain changes in the Company's capital structure. The exercise price of options granted under the 2006 Plan is equal to the closing price of the Company's common stock, as reported by The NASDAQ Global Select Market, on the business day immediately preceding the date of grant. As of March 31, 2016 , there were 345,191 shares of stock available for issuance for equity compensation awards under the 2006 Plan. The Company has historically granted both time-based and performance-based RSUs and three types of stock options. The Company's stock options are all granted with a term of six years from the grant date. The first type of stock option is subject only to time-based vesting. These stock options have historically been granted by the Company as annual grants to executives and other employees, to certain new employees and to newly-elected non-employee directors. These stock options vest in four equal annual installments beginning one year after the grant date. The fair value of these option grants is determined on the date of grant and the related compensation expense is recognized for the entire award on a straight-line basis over the requisite service period. The second type of stock option granted by the Company is performance-based and is subject to cancellation if the specified performance targets are not met. If the applicable performance targets have been achieved, the options will vest in four equal annual installments beginning one year after the grant date. The fair value of these stock option grants is determined on the date of grant and the related compensation expense is recognized over the requisite service period, including the initial period for which the specified performance targets must be met. The third type of stock option granted by the Company is director options and have historically been granted to non-employee directors annually at the Company's Annual Meeting of Shareholders during the second quarter of a fiscal year. These options are similar to the time-based options described above except that these director options vest one year after the grant date. The fair value of these option grants is determined on the date of the grant and the related compensation expense is recognized over one year . If an incentive stock option is granted to an employee who, at the time the option is granted, owns stock representing more than 10% percent of the voting power of all classes of our stock, the exercise price of the option may not be less than 110% of the market value per share on the date the option is granted and the term of the option shall be not more than five years from the date of grant. Performance-based and time-based RSUs can be granted by the Company to directors, executives, certain key employees and certain new employees. The fair value of the RSUs is determined on the date of grant. Time-based RSUs granted to executives, certain key employees, certain new employees and new non-employee directors vest in four equal annual installments beginning one year after the grant date. Time-based RSUs granted annually to non-employee directors vest in full one year after the grant date. Performance-based RSUs vest in four equal annual installments once the individual has achieved the performance targets. RSUs are not included in issued and outstanding common stock until the shares are vested and settlement has occurred. During 2015, the Company elected to grant performance-based and time-based RSUs to directors, executives, certain key employees and certain new employees. During 2016, the Company plans to utilize both stock options and RSUs for stock-based compensation. The 2006 Plan may be terminated by the Company's Board of Directors at any time. Stock-Based Compensation Expense Information The following table summarizes the allocation of stock-based compensation expense related to employee and director stock options and RSUs under FASB ASC Topic 718, Compensation – Stock Compensation ("FASB ASC 718") for the three months ended March 31, 2016 and 2015 (in thousands): Three Months Ended 2016 2015 Stock-based compensation expense by category: Costs of recurring revenues $ 393 $ 432 Costs of license and hardware revenues 30 22 Costs of services revenues 274 129 Sales and marketing 817 561 Research and development 1,754 819 General and administrative 701 1,030 Total stock-based compensation expense $ 3,969 $ 2,993 Effect of stock-based compensation expense on net loss per share: Basic $ (0.18 ) $ (0.14 ) Diluted (0.18 ) (0.14 ) During the three months ended March 31, 2016 and 2015 , the Company capitalized $106,000 and $630,000 , respectively, of stock-based compensation expense related to capitalized software. Stock Option and RSU Valuation The Company estimated the fair value of stock options using the Black-Scholes valuation model. There were no stock options granted during the first three months of 2015. The weighted-average estimated per option value of time-based and performance-based options granted under the 2006 Plan during the three months ended March 31, 2016 used the following assumptions: Three Months Ended Valuation assumptions for time-based options: 2016 Dividend yield — % Expected volatility 59.26 % Risk-free interest rate 1.17 % Expected life of option (in years) 4.00 Three Months Ended Valuation assumptions for performance-based options: 2016 Dividend yield — % Expected volatility 57.26 % Risk-free interest rate 1.14 % Expected life of option (in years) 4.25 RSUs are valued using the fair market value of the Company's stock on the date of grant and expense is recognized on a straight line basis taking into account an estimated forfeiture rate. Stock Option and RSU Activity The following table sets forth a summary of stock option activity for the three months ended March 31, 2016 : Options Weighted-Average Exercise Price Balances, beginning of year 1,060,858 $ 35.85 Options granted 329,745 27.73 Options exercised (93,550 ) 18.63 Options cancelled, forfeited or expired (1,500 ) 37.76 Options outstanding 1,295,553 35.02 Option price range $ 6.66 - 66.39 Weighted-average fair value of options granted $ 12.71 Options exercisable 818,879 $ 34.78 The following table sets forth information regarding the Company's stock options outstanding and exercisable as of March 31, 2016 : Options Outstanding Options Exercisable Range of Exercise Prices Number Weighted- Average Remaining Contractual Life Weighted Average Exercise Price Number Weighted $ 6.66 — $ 22.92 62,575 0.67 $ 18.92 62,575 $ 18.92 24.50 — 24.50 224,379 1.98 24.50 213,129 24.50 25.00 — 27.53 49,000 2.09 26.14 45,500 26.10 27.73 — 27.73 329,745 5.85 27.73 — — 28.82 — 30.92 13,750 1.93 30.35 11,250 30.22 32.33 — 32.33 182,250 0.99 32.33 182,250 32.33 32.53 — 34.69 54,000 1.70 33.05 47,750 32.98 39.97 — 39.97 137,905 3.06 39.97 96,470 39.97 48.12 — 66.21 87,000 3.64 50.30 83,500 49.67 66.39 — 66.39 154,949 3.95 66.39 76,455 66.39 Total shares/average price 1,295,553 3.22 $ 35.02 818,879 $ 34.78 The total intrinsic value of options exercised during the quarter ended March 31, 2016 was $616,000 . The aggregate intrinsic value of options outstanding as of March 31, 2016 was $8.1 million and the aggregate intrinsic value of options currently exercisable as of March 31, 2016 was $5.1 million . The aggregate intrinsic value represents the total intrinsic value, based on the Company's closing stock price per share of $36.42 as of March 31, 2016 , which would have been realized by the option holders had all option holders exercised their options as of that date. The total number of in-the-money options exercisable as of March 31, 2016 represented approximately 562,454 shares with a weighted average exercise price of $27.38 . As of March 31, 2016 , there was $7.7 million of total unrecognized compensation expense related to non-vested stock options. This expense is expected to be recognized over the weighted average remaining vesting period of 3.11 years. The following table sets forth a summary of RSU activity for the three months ended March 31, 2016 : Awards Weighted- Average Grant Date Price Balances, beginning of year 850,228 $ 45.53 RSUs granted 568,441 26.81 RSUs vested (203,817 ) 46.00 RSUs forfeited (26,606 ) 43.42 RSUs outstanding 1,188,246 36.54 As of March 31, 2016 , there was $40.1 million of total unrecognized compensation expense related to non-vested RSUs. This expense is expected to be recognized over the weighted average remaining vesting period of 3.03 years.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company's effective tax rate, without the effect of discrete items, for the three months ended March 31, 2016 was (2.4)% compared to (4.7)% for the same period in 2015 . No discrete items were recorded during the three months ended March 31, 2016 . During the three months ended March 31, 2015 , the Company recorded a net credit to income taxes of $1.9 million to correct an error in the Company's valuation reserve for deferred tax assets. With the effects of this discrete item, the Company's effective tax rate was 28.3% for the three months ended March 31, 2015 . The Company's effective tax rate for the three months ended March 31, 2016 was lower than the federal statutory tax rate of 35.0% primarily because the Company continues to record a full valuation allowance related to its domestic deferred tax assets.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Proceedings From time to time, the Company has received notification from competitors and other technology providers claiming that the Company's technology infringes upon their proprietary rights. The Company cannot provide assurance that these matters can be resolved amicably without litigation, or that the Company will be able to enter into licensing arrangements on terms and conditions that would not have a material adverse effect on its business, financial condition or results of operations. From time to time, the Company is also involved in certain legal proceedings in the ordinary course of conducting its business. While the ultimate liability pursuant to these actions cannot currently be determined, the Company believes these legal proceedings will not have a material adverse effect on its financial position or results of operations. Litigation, in general, and intellectual property litigation, in particular, can be expensive and disruptive to normal business operations. Moreover, the results of complex legal proceedings are difficult to predict. Guarantees The Company provides indemnifications of varying scope and amount to certain customers against claims of intellectual property infringement made by third parties arising from the use of its product and service offerings. The Company's software license and subscription agreements include certain provisions for indemnifying customers, in material compliance with their license agreement, against liabilities if the Company's software products or services infringe upon a third party's intellectual property rights, over the life of the agreement. There is no maximum potential amount of future payments set under the guarantee. However, the typical arrangement states that the Company may at any time and at its option and expense: (i) procure the right of the customer to continue to use the Company's software or services that may infringe a third party's rights; (ii) modify its software or services so as to avoid infringement; or (iii) require the customer to return its software or stop using the service and the Company will provide a refund to the customer depending on the type of offering (on-premises or cloud) used by such customer. The customer's failure to provide timely notice or reasonable assistance will relieve the Company of its obligations under this indemnification to the extent that it has been actually and materially prejudiced by such failure. To date, the Company has not incurred, nor does it expect to incur, any material related costs and, therefore, has not reserved for such liabilities, in accordance with FASB ASC Topic 460, Guarantees . The Company's software license and subscription agreements also include a warranty that its software products and services will substantially conform to its software user documentation for a period of one year , provided the customer is in material compliance with the software license or subscription agreement. To date, the Company has not incurred any material costs associated with these product warranties, and as such, has not reserved for any such warranty liabilities in its operating results. Lease Commitments The Company's world headquarters are located in approximately 425,000 square feet of space in four office buildings in Indianapolis, Indiana. In May 2014, the Company entered into new separate lease agreements with Duke Realty Limited Partnership for three of the office buildings, one of which was originally to expire in March 2018 and two of which were originally to expire on June 30, 2025. Also in May 2014, the Company entered into a lease agreement with Duke Construction Limited Partnership to expand its world headquarters to include a fourth, build-to-suit office building in Indianapolis, Indiana. The construction of the fourth office building was completed in June 2015 and the lease term was originally to expire in June 2025. See Note 11 - Subsequent Events for information related to the lease amendments and lease termination agreement entered into in April 2016 with respect to these office buildings. Other Contingencies Effective March 6, 2015, the Company entered into an agreement with Verint Americas Inc. ("Verint"), with an initial term of five years. Under the terms of the agreement, Verint granted to the Company limited rights to sell Verint product and the Company agreed to pay Verint license fees. If sales of Verint product are not maintained at levels as stated in the agreement, the Company could potentially owe Verint up to $5 million . No accrual has been recorded as of March 31, 2016, as the Company anticipates selling at least the minimum amounts of Verint product set forth in the agreement. The Company has received and may continue to receive certain payroll tax credits and real estate tax abatements that were granted to the Company based upon certain growth projections. If the Company's actual results are less than those projections, the Company may be subject to repayment of some or all of the tax credits or payment of additional real estate taxes in the case of the abatements. The Company does not believe that it will be subject to payment of any money related to these taxes; however, the Company cannot provide assurance as to the outcome.

DERIVATIVES

DERIVATIVES	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	DERIVATIVES The Company enters into derivative contracts to mitigate its foreign currency risk associated with transacting business internationally. The Company uses foreign currency forward contracts to hedge the revaluation exposure of its net monetary assets and liabilities including cash, accounts receivable, accounts payable and certain intercompany payables and receivables. These hedges are not designated under GAAP, and all realized and unrealized gains and losses are recorded as incurred within other income (expense) on the Company's condensed consolidated statements of operations. The objective is to offset the gains and losses on the underlying exposures with the gains and losses from the forward contracts. The Company's hedging policy prohibits entering into hedge contracts that are speculative in nature. The Company records the fair value of its outstanding hedge contracts in other current assets and accrued liabilities depending upon the market value of the forward contracts at each balance sheet date. The following table summarizes the notional amount and fair value of the Company's outstanding currency contracts at March 31, 2016 and December 31, 2015 , respectively (in thousands): USD Equivalent Notional Amount March 31, December 31, Euro $ 3,401 $ 3,275 Japanese Yen 1,599 1,495 South African Rand 357 347 US Dollar 150 150 Total $ 5,507 $ 5,267 Fair Value USD (1) March 31, December 31, Derivative Asset $ 31 $ 32 ___________ (1) The fair value measurement of these derivative contracts falls within Level 2 of the fair value hierarchy as defined in FASB ASC 820. See Note 4 - Investments for further information. During the three months ended March 31, 2016 , the Company recorded a hedging loss of $307,000 compared to a hedging gain of $491,000 for the same period last year. In May 2015, the Company issued $150 million aggregate principal amount of its 1.25% convertible senior notes (the "Notes") due June 1, 2020, unless earlier purchased by the Company or converted. In connection with the pricing of the Notes, the Company entered into privately-negotiated capped call transactions (the "capped call transactions") with each of Morgan Stanley & Co. LLC, JPMorgan Chase Bank, National Association, London Branch and Royal Bank of Canada. The capped call transactions cover, subject to anti-dilution adjustments substantially similar to those applicable to the Notes, the number of shares of the Company's common stock that underlie the Notes. The Company used approximately $12.8 million of the net proceeds from the issuance of the Notes to pay the cost of the capped call transactions. The strike price of the purchased call option is the same as the initial conversion price per share of the Notes of $61.24 . The capped call transactions have an initial cap price of $79.38 per share. These capped call transactions are recorded within equity on the condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 and are not remeasured as long as they continue to meet the conditions for equity classification.

CONVERTIBLE NOTES

CONVERTIBLE NOTES	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
CONVERTIBLE NOTES	CONVERTIBLE NOTES In May 2015, the Company issued $150 million aggregate principal amount of its Notes due June 1, 2020, unless earlier purchased by the Company or converted. Interest is payable semi-annually, in arrears, on June 1 and December 1 of each year. The Company made its first interest payment on the Notes on December 1, 2015. The Notes were sold in a private placement under a purchase agreement entered into by and among the Company and Morgan Stanley & Co. LLC, J.P. Morgan Securities LLC and RBC Capital Markets, LLC, as representatives of the several initial purchasers named therein, for resale to qualified institutional buyers as defined in, and in reliance on, Rule 144A under the Securities Act of 1933, as amended. The Notes are governed by an indenture between the Company, as issuer, and U.S. Bank National Association, as trustee (the "indenture"). The Notes are unsecured and do not contain any financial covenants or any restrictions on the payment of dividends or the incurrence of senior debt or other indebtedness. If converted, holders of the Notes will receive, at the Company's election, cash, shares of the Company's common stock or a combination of cash and shares. The initial conversion terms are as follows: Initial Conversion Rate per $1,000 Principal Amount Initial Conversion Price per Share 1.25% Convertible Senior Notes 16.3303 $ 61.24 Throughout the term of the Notes, the conversion rate may be adjusted upon the occurrence of certain events. Except for certain circumstances set forth in the indenture, holders of the Notes will not receive any cash payment representing accrued and unpaid interest upon conversion of a Note. Accrued but unpaid interest will be deemed to be paid in full upon conversion rather than canceled, extinguished or forfeited. Holders may convert the Notes under the following circumstances: • during any calendar quarter commencing after the calendar quarter ending on September 30, 2015 (and only during such calendar quarter), if the last reported sale price of the Company's common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; • during the five business day period after any 5 consecutive trading day period (the ‘‘measurement period'') in which the trading price (as defined below) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company's common stock and the conversion rate on each such trading day; • upon the occurrence of specified corporate transactions pursuant to the indenture; or • at any time on or after March 3, 2020. Holders of the Notes have the right to require the Company to repurchase for cash all or a portion of the Notes prior to maturity upon the occurrence of a fundamental change, including, among other things, a change of control, at a purchase price equal to 100% of the principal amount of the Notes to be repurchased plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, following certain corporate transactions that constitute a fundamental change, the Company is required to increase the conversion rate for a holder who elects to convert the Notes in connection with such change of control. In accounting for the issuances of the Notes, the Company separated the Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the Notes as a whole. The excess of the principal amount of the liability component over its carrying amount ("convertible notes discount") is amortized to interest expense over the term of the Notes using the effective interest rate method. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. Par Value Outstanding Equity Component Recorded at Issuance Liability Component of Par Value as of (In thousands) March 31, 2016 December 31, 2015 1.25% Convertible Senior Notes $ 150,000 $ 31,756 (1) $ 119,619 $ 118,022 ___________ (1) This amount represents the equity component recorded at the initial issuance of the Notes. In accounting for the transaction costs related to the issuance of the Notes, the Company allocated the total amount incurred to the liability and equity components based on their relative values. Transaction costs attributable to the liability component are being amortized to expense using the effective interest rate method over the term of the Notes, and transaction costs attributable to the equity component were netted with the equity component in shareholders' equity. The Notes consisted of the following (in thousands): As of March 31, 2016 December 31, 2015 Liability component: 1.25% Convertible Senior Notes (1) $ 150,000 $ 150,000 Less: debt discount, net (2) (27,133 ) (28,554 ) Less: debt issuance costs (2) (3,248 ) (3,424 ) Net carrying amount $ 119,619 $ 118,022 ___________ (1) The effective interest rate of the Notes is 6.25% . The interest rate is based on the interest rates of similar liabilities at the time of issuance that did not have an associated convertible feature. (2) Included in the condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 within convertible notes and is amortized over the term of the Notes using the effective interest rate method. The total estimated fair value of the Notes at March 31, 2016 was $123.8 million . The fair value was determined based on inputs that are observable in the market (Level 2) and was based on the closing trading price per $100 of the Notes as of the last day of trading for the first quarter of 2016. Based on the closing price of the Company's common stock of $36.42 on March 31, 2016 , the if-converted value of the Notes fell below the principal amount by approximately $60.8 million . Based on the terms of the Notes, the Notes were not convertible at any time during the three months ended March 31, 2016 .

SUBSEQUENT EVENTS (Notes)

SUBSEQUENT EVENTS (Notes)	3 Months Ended
	Mar. 31, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS In April 2016, the Company entered into a lease termination agreement with Duke Realty Limited Partnership for its headquarters office building that was to expire on March 31, 2018. Pursuant to the lease termination agreement, the lease will terminate and be cancelled effective as of September 30, 2016. Additionally, the Company entered into a lease amendment with Duke Realty Limited Partnership for each of its remaining three headquarters office buildings, which extend the term of the leases through June 30, 2027.

SUMMARY OF CERTAIN ACCOUNTING19

SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	In March 2016, the Financial Accounting Standards Board ("FASB") issued FASB Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation ("FASB ASU 2016-09"), which includes the simplification of several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. Public business entities must apply the new requirements in fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any entity in any interim or annual period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The Company is evaluating the effect that FASB ASU 2016-09 will have on its consolidated financial statements and related disclosures. The Company has not yet adopted the amendments nor has it determined the effect of the guidance on its ongoing financial reporting. In February 2016, the FASB issued FASB ASU No. 2016-02, Leases ("FASB ASU 2016-02), which amends the FASB Accounting Standards Codification ("ASC") to increase transparency and comparability among organizations by requiring companies to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. Public business entities must apply the new requirements in fiscal years beginning after December 15, 2018, including interim periods within those years. All entities have the option of applying the amendments as of an earlier date for financial statements that have not been previously issued. The Company is evaluating the effect that FASB ASU 2016-02 will have on its consolidated financial statements and related disclosures. The Company has not yet adopted the amendments nor has it determined the effect of the guidance on its ongoing financial reporting. In May 2014, the FASB issued FASB ASU No. 2014-09, Revenue from Contracts with Customers ("FASB ASU 2014-09"), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. FASB ASU 2014-09 will replace most existing U.S. GAAP revenue recognition guidance when it becomes effective. As originally issued, the new standard was to become effective for the Company on January 1, 2017, and early adoption is not permitted. In August 2015, the FASB issued FASB ASU No. 2015-14, Deferral of the Effective Date , which declared a one-year deferral of the effective date of the new revenue recognition standard. As a result, the new standard will become effective for the Company beginning with the first quarter of 2018. FASB ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that FASB ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the guidance on its ongoing financial reporting.
Internal Use Software	The Company capitalizes certain costs related to its multi-tenant cloud offering, PureCloud SM ("PureCloud"), and certain projects described below for internal use in accordance with FASB ASC 350-40, Internal Use Software . Once a product has reached the development stage, internal and external costs, if direct and incremental, are capitalized until the software is substantially complete and ready for its intended use. The capitalization of costs ceases upon completion of all substantial testing. Costs incurred in the preliminary stages of development, maintenance and training costs are expensed as incurred.

NET LOSS PER SHARE (Tables)

NET LOSS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Calculation Of Basic And Diluted Net Income Per Share	The following table sets forth the calculation of basic and diluted net loss per share (in thousands, except per share amounts): Three Months Ended 2016 2015 Net loss, as reported (A) $ (13,252 ) $ (3,459 ) Weighted average shares of common stock outstanding (B) 22,007 21,447 Dilutive effect of employee stock options and RSUs — — Common stock and common stock equivalents (C) 22,007 21,447 Net loss per share: Basic (A/B) $ (0.60 ) $ (0.16 ) Diluted (A/C) (0.60 ) (0.16 )

INVESTMENTS (Tables)

INVESTMENTS (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Financial Assets Measured At Fair Value	The following table sets forth a summary of the Company's financial assets, classified as cash and cash equivalents, short-term investments and long-term investments on its condensed consolidated balance sheets, measured at fair value as of March 31, 2016 and December 31, 2015 (in thousands): Fair Value Measurements at March 31, 2016 Using Description Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Cash & cash equivalents: Cash $ 98,021 $ 98,021 $ — $ — Money market funds 16,528 16,528 — — Total $ 114,549 $ 114,549 $ — $ — Short-term investments: Corporate notes $ 35,363 $ — $ 35,363 $ — U.S. government securities 13,514 — 13,514 — Asset-backed securities 4,686 — 4,686 — Agency bonds 3,496 — 3,496 — Commercial paper 1,499 — 1,499 — Total $ 58,558 $ — $ 58,558 $ — Long-term investments: Corporate notes $ 23,226 $ — $ 23,226 $ — Asset-backed securities 1,708 — 1,708 — Total $ 24,934 $ — $ 24,934 $ — Fair Value Measurements at December 31, 2015 Using Description Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash & cash equivalents: Cash $ 91,974 $ 91,974 $ — $ — Money market funds 2,834 2,834 — — Total $ 94,808 $ 94,808 $ — $ — Short-term investments: Corporate notes $ 27,105 $ — $ 27,105 $ — Agency bonds 27,002 — 27,002 — Asset-backed securities 4,681 — 4,681 — U.S. government securities 3,896 — 3,896 — Commercial paper 1,498 — 1,498 — Total $ 64,182 $ — $ 64,182 $ — Long-term investments: Corporate notes $ 29,504 $ — $ 29,504 $ — Asset-backed securities 999 $ — 999 — Total $ 30,503 $ — $ 30,503 $ —

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Allocation of Stock-Based Compensation Expense	The following table summarizes the allocation of stock-based compensation expense related to employee and director stock options and RSUs under FASB ASC Topic 718, Compensation – Stock Compensation ("FASB ASC 718") for the three months ended March 31, 2016 and 2015 (in thousands): Three Months Ended 2016 2015 Stock-based compensation expense by category: Costs of recurring revenues $ 393 $ 432 Costs of license and hardware revenues 30 22 Costs of services revenues 274 129 Sales and marketing 817 561 Research and development 1,754 819 General and administrative 701 1,030 Total stock-based compensation expense $ 3,969 $ 2,993 Effect of stock-based compensation expense on net loss per share: Basic $ (0.18 ) $ (0.14 ) Diluted (0.18 ) (0.14 )
Schedule of Valuation Assumptions	The weighted-average estimated per option value of time-based and performance-based options granted under the 2006 Plan during the three months ended March 31, 2016 used the following assumptions: Three Months Ended Valuation assumptions for time-based options: 2016 Dividend yield — % Expected volatility 59.26 % Risk-free interest rate 1.17 % Expected life of option (in years) 4.00 Three Months Ended Valuation assumptions for performance-based options: 2016 Dividend yield — % Expected volatility 57.26 % Risk-free interest rate 1.14 % Expected life of option (in years) 4.25
Summary of Stock Option Activity	The following table sets forth a summary of stock option activity for the three months ended March 31, 2016 : Options Weighted-Average Exercise Price Balances, beginning of year 1,060,858 $ 35.85 Options granted 329,745 27.73 Options exercised (93,550 ) 18.63 Options cancelled, forfeited or expired (1,500 ) 37.76 Options outstanding 1,295,553 35.02 Option price range $ 6.66 - 66.39 Weighted-average fair value of options granted $ 12.71 Options exercisable 818,879 $ 34.78
Summary of Stock Options Outstanding and Exercisable	The following table sets forth information regarding the Company's stock options outstanding and exercisable as of March 31, 2016 : Options Outstanding Options Exercisable Range of Exercise Prices Number Weighted- Average Remaining Contractual Life Weighted Average Exercise Price Number Weighted $ 6.66 — $ 22.92 62,575 0.67 $ 18.92 62,575 $ 18.92 24.50 — 24.50 224,379 1.98 24.50 213,129 24.50 25.00 — 27.53 49,000 2.09 26.14 45,500 26.10 27.73 — 27.73 329,745 5.85 27.73 — — 28.82 — 30.92 13,750 1.93 30.35 11,250 30.22 32.33 — 32.33 182,250 0.99 32.33 182,250 32.33 32.53 — 34.69 54,000 1.70 33.05 47,750 32.98 39.97 — 39.97 137,905 3.06 39.97 96,470 39.97 48.12 — 66.21 87,000 3.64 50.30 83,500 49.67 66.39 — 66.39 154,949 3.95 66.39 76,455 66.39 Total shares/average price 1,295,553 3.22 $ 35.02 818,879 $ 34.78
Summary of RSU activity	The following table sets forth a summary of RSU activity for the three months ended March 31, 2016 : Awards Weighted- Average Grant Date Price Balances, beginning of year 850,228 $ 45.53 RSUs granted 568,441 26.81 RSUs vested (203,817 ) 46.00 RSUs forfeited (26,606 ) 43.42 RSUs outstanding 1,188,246 36.54

DERIVATIVES (Tables)

DERIVATIVES (Tables)	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Derivative Notional Amount And Fair Value	The following table summarizes the notional amount and fair value of the Company's outstanding currency contracts at March 31, 2016 and December 31, 2015 , respectively (in thousands): USD Equivalent Notional Amount March 31, December 31, Euro $ 3,401 $ 3,275 Japanese Yen 1,599 1,495 South African Rand 357 347 US Dollar 150 150 Total $ 5,507 $ 5,267 Fair Value USD (1) March 31, December 31, Derivative Asset $ 31 $ 32 ___________ (1) The fair value measurement of these derivative contracts falls within Level 2 of the fair value hierarchy as defined in FASB ASC 820. See Note 4 - Investments for further information.

CONVERTIBLE NOTES (Tables)

CONVERTIBLE NOTES (Tables)	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Schedule of Debt Conversions	If converted, holders of the Notes will receive, at the Company's election, cash, shares of the Company's common stock or a combination of cash and shares. The initial conversion terms are as follows: Initial Conversion Rate per $1,000 Principal Amount Initial Conversion Price per Share 1.25% Convertible Senior Notes 16.3303 $ 61.24
Convertible Debt	Par Value Outstanding Equity Component Recorded at Issuance Liability Component of Par Value as of (In thousands) March 31, 2016 December 31, 2015 1.25% Convertible Senior Notes $ 150,000 $ 31,756 (1) $ 119,619 $ 118,022 ___________ (1) This amount represents the equity component recorded at the initial issuance of the Notes.
Schedule of Long-term Debt Instruments	The Notes consisted of the following (in thousands): As of March 31, 2016 December 31, 2015 Liability component: 1.25% Convertible Senior Notes (1) $ 150,000 $ 150,000 Less: debt discount, net (2) (27,133 ) (28,554 ) Less: debt issuance costs (2) (3,248 ) (3,424 ) Net carrying amount $ 119,619 $ 118,022 ___________ (1) The effective interest rate of the Notes is 6.25% . The interest rate is based on the interest rates of similar liabilities at the time of issuance that did not have an associated convertible feature. (2) Included in the condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 within convertible notes and is amortized over the term of the Notes using the effective interest rate method.

SUMMARY OF CERTAIN ACCOUNTING25

SUMMARY OF CERTAIN ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Capitalized costs related to development	$ 1	$ 5.6
Capitalized costs with development and implementation of business systems	$ 0.4	$ 0.9

NET LOSS PER SHARE (Details)

NET LOSS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net loss	$ (13,252)	$ (3,459)
Weighted average shares of common stock outstanding (shares)	22,007,000	21,447,000
Dilutive effect of employee stock options and RSUs	0	0
Common stock and common stock equivalents (shares)	22,007,000	21,447,000
Basic (A/B) (in dollars per share)	$ (0.60)	$ (0.16)
Diluted (A/C) (in dollars per share)	$ (0.60)	$ (0.16)
Stock options excluded from diluted net income (loss) per share (shares)	839,000	374,000

INVESTMENTS (Financial Assets M

INVESTMENTS (Financial Assets Measured At Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	$ 114,549	$ 94,808
Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maturity period	1 year
Investments, Total	$ 58,558	64,182
Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maturity period	3 years
Investments, Total	$ 24,934	30,503
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	114,549	94,808
Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	58,558	64,182
Significant Other Observable Inputs (Level 2) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	24,934	30,503
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Significant Unobservable Inputs (Level 3) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	98,021	91,974
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	98,021	91,974
Cash | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Cash | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	16,528	2,834
Money market funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	16,528	2,834
Money market funds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Money market funds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash & cash equivalents, Total	0	0
Agency bonds | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	3,496	27,002
Agency bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Agency bonds | Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	3,496	27,002
Agency bonds | Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Asset-backed Securities [Member] | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	4,686	4,681
Asset-backed Securities [Member] | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	1,708	999
Asset-backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Asset-backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Asset-backed Securities [Member] | Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	4,686	4,681
Asset-backed Securities [Member] | Significant Other Observable Inputs (Level 2) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	1,708	999
Asset-backed Securities [Member] | Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Asset-backed Securities [Member] | Significant Unobservable Inputs (Level 3) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
US Treasury and Government [Member] | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	13,514	3,896
US Treasury and Government [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
US Treasury and Government [Member] | Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	13,514	3,896
US Treasury and Government [Member] | Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Corporate notes | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	35,363	27,105
Corporate notes | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	23,226	29,504
Corporate notes | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Corporate notes | Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Corporate notes | Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	35,363	27,105
Corporate notes | Significant Other Observable Inputs (Level 2) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	23,226	29,504
Corporate notes | Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Corporate notes | Significant Unobservable Inputs (Level 3) | Long-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Commercial paper | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	1,499	1,498
Commercial paper | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	0	0
Commercial paper | Significant Other Observable Inputs (Level 2) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	1,499	1,498
Commercial paper | Significant Unobservable Inputs (Level 3) | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Total	$ 0	$ 0

ACCOUNTS RECEIVABLE AND CONCE28

ACCOUNTS RECEIVABLE AND CONCENTRATION OF CREDIT RISK (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)customer	Mar. 31, 2015customer	Dec. 31, 2015USD ($)customer
Concentration Risk [Line Items]
Unbilled accounts receivable | $	$ 8.5		$ 9.6
Deferred Revenue | $	$ 135.1		$ 135.4
Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Number of customers or partners with significant holding	0		0
Percentage of concentration risk	10.00%		10.00%
Accounts Receivable | Top Five Partners
Concentration Risk [Line Items]
Number of customers or partners with significant holding	5		5
Percentage of concentration risk	13.00%		14.00%
Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Number of customers or partners with significant holding	0	0
Percentage of concentration risk	10.00%	10.00%

STOCK-BASED COMPENSATION (Detai

STOCK-BASED COMPENSATION (Details)	May. 22, 2013shares	Mar. 31, 2016USD ($)itemstock_option_type$ / sharesshares	Mar. 31, 2015USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of types of stock options | stock_option_type		3
Options granted (shares) | shares			0
Total intrinsic value of options exercised | $		$ 616,000
Aggregate intrinsic value of options outstanding | $		8,100,000
Aggregate intrinsic value of options currently exercisable | $		$ 5,100,000
Company's closing stock price per share | $ / shares		$ 36.42
Total unrecognized compensation cost related to non-vested stock options | $		$ 7,700,000
Weighted average remaining vesting period		3 years 1 month 10 days
Non-Performance-Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments | item		4
Award vesting period		1 year
Performance-Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments | item		4
Award vesting period		1 year
Director Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		1 year
Period of recognizing compensation expense		1 year
Non Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments | item		4
Award vesting period		1 year
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments | item		4
In the Money Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of in-the-money options exercisable | shares		562,454
Weighted average exercise price (dollars per share) | $ / shares		$ 27.38
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (shares) | shares		568,441
Weighted average remaining vesting period		3 years 11 days
Total unrecognized compensation cost related to non-vested RSUs | $		$ 40,100,000
Capitalized software, net
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, capitalized amount | $		$ 106,000	$ 630,000
2006 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares available for issuance | shares	2,000,000
Shares available for delivery | shares	9,050,933
Shares of stock available for issuance for equity compensation awards | shares		345,191

STOCK-BASED COMPENSATION (Alloc

STOCK-BASED COMPENSATION (Allocation of Stock-Based Compensation Expense) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 3,969	$ 2,993
Effects of Stock-based compensation: Basic (dollars per share)	$ (0.18)	$ (0.14)
Effects of Stock-based compensation: Diluted (dollars per share)	$ (0.18)	$ (0.14)
Costs of recurring revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 393	$ 432
Cost Of License and Hardware Revenues [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	30	22
Costs of services revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	274	129
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	817	561
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,754	819
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 701	$ 1,030

STOCK-BASED COMPENSATION (Sched

STOCK-BASED COMPENSATION (Schedule of Valuation Assumptions) (Details)	3 Months Ended
	Mar. 31, 2016
Non-Performance-Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%
Expected volatility	59.26%
Risk-free interest rate	1.17%
Expected life of option (in years)	4 years
Performance-Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%
Expected volatility	57.26%
Risk-free interest rate	1.14%
Expected life of option (in years)	4 years 3 months

STOCK-BASED COMPENSATION (Summa

STOCK-BASED COMPENSATION (Summary of Stock Option Activity) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Options
Options granted (shares)		0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 12.71
Options
Balances, beginning of year (shares)	1,060,858
Options granted (shares)	329,745
Exercise of stock options (shares)	(93,550)
Options cancelled, forfeited or expired (shares)	(1,500)
Options outstanding at end of year (shares)	1,295,553
Option price range, lower limit (dollars per share)	$ 6.66
Option price range, upper limit (dollars per share)	$ 66.39
Options exercisable (shares)	818,879
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Balance, beginning of year (dollars per share)	$ 35.85
Weighted-Average Exercise Price, Options granted (dollars per share)	27.73
Weighted-Average Exercise Price, Options exercised (dollars per share)	18.63
Weighted-Average Exercise Price, Options cancelled, forfeited or expired (dollars per share)	37.76
Weighted-Average Exercise Price, Options outstanding (dollars per share)	35.02
Weighted-Average Exercise Price, Options exercisable (dollars per share)	$ 34.78

STOCK-BASED COMPENSATION (Sum33

STOCK-BASED COMPENSATION (Summary of Stock Options Outstanding and Exercisable) (Details)	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding, number (shares) | shares	1,295,553
Options outstanding, weighted-average remaining contractual life (in years)	3 years 2 months 19 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 35.02
Options exercisable, number | shares	818,879
Options exercisable, weighted-average exercise price (dollars per share)	$ 34.78
Range 1
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	6.66
Option price range, upper limit (dollars per share)	$ 22.92
Options outstanding, number (shares) | shares	62,575
Options outstanding, weighted-average remaining contractual life (in years)	8 months 1 day
Options outstanding, weighted-average exercise price (dollars per share)	$ 18.92
Options exercisable, number | shares	62,575
Options exercisable, weighted-average exercise price (dollars per share)	$ 18.92
Range 2
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	24.50
Option price range, upper limit (dollars per share)	$ 24.50
Options outstanding, number (shares) | shares	224,379
Options outstanding, weighted-average remaining contractual life (in years)	1 year 11 months 23 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 24.50
Options exercisable, number | shares	213,129
Options exercisable, weighted-average exercise price (dollars per share)	$ 24.50
Range 3
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	25
Option price range, upper limit (dollars per share)	$ 27.53
Options outstanding, number (shares) | shares	49,000
Options outstanding, weighted-average remaining contractual life (in years)	2 years 1 month 2 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 26.14
Options exercisable, number | shares	45,500
Options exercisable, weighted-average exercise price (dollars per share)	$ 26.10
Range 4
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	27.73
Option price range, upper limit (dollars per share)	$ 27.73
Options outstanding, number (shares) | shares	329,745
Options outstanding, weighted-average remaining contractual life (in years)	5 years 10 months 6 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 27.73
Options exercisable, number | shares	0
Options exercisable, weighted-average exercise price (dollars per share)	$ 0
Range 5
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	28.82
Option price range, upper limit (dollars per share)	$ 30.92
Options outstanding, number (shares) | shares	13,750
Options outstanding, weighted-average remaining contractual life (in years)	1 year 11 months 5 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 30.35
Options exercisable, number | shares	11,250
Options exercisable, weighted-average exercise price (dollars per share)	$ 30.22
Range 6
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	32.33
Option price range, upper limit (dollars per share)	$ 32.33
Options outstanding, number (shares) | shares	182,250
Options outstanding, weighted-average remaining contractual life (in years)	11 months 27 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 32.33
Options exercisable, number | shares	182,250
Options exercisable, weighted-average exercise price (dollars per share)	$ 32.33
Range 7
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	32.53
Option price range, upper limit (dollars per share)	$ 34.69
Options outstanding, number (shares) | shares	54,000
Options outstanding, weighted-average remaining contractual life (in years)	1 year 8 months 12 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 33.05
Options exercisable, number | shares	47,750
Options exercisable, weighted-average exercise price (dollars per share)	$ 32.98
Range 8
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	39.97
Option price range, upper limit (dollars per share)	$ 39.97
Options outstanding, number (shares) | shares	137,905
Options outstanding, weighted-average remaining contractual life (in years)	3 years 22 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 39.97
Options exercisable, number | shares	96,470
Options exercisable, weighted-average exercise price (dollars per share)	$ 39.97
Range 9
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	48.12
Option price range, upper limit (dollars per share)	$ 66.21
Options outstanding, number (shares) | shares	87,000
Options outstanding, weighted-average remaining contractual life (in years)	3 years 7 months 21 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 50.30
Options exercisable, number | shares	83,500
Options exercisable, weighted-average exercise price (dollars per share)	$ 49.67
Range 10
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Option price range, lower limit (dollars per share)	66.39
Option price range, upper limit (dollars per share)	$ 66.39
Options outstanding, number (shares) | shares	154,949
Options outstanding, weighted-average remaining contractual life (in years)	3 years 11 months 12 days
Options outstanding, weighted-average exercise price (dollars per share)	$ 66.39
Options exercisable, number | shares	76,455
Options exercisable, weighted-average exercise price (dollars per share)	$ 66.39

STOCK-BASED COMPENSATION (Sum34

STOCK-BASED COMPENSATION (Summary of RSU Activity) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted (shares)		0
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balances, beginning of year (shares)	850,228
RSUs granted (shares)	568,441
RSUs vested (shares)	(203,817)
RSUs forfeited (shares)	(26,606)
Options outstanding at end of year (shares)	1,188,246
Weighted-Average Exercise Price, Balance, beginning of year (dollars per share)	$ 45.53
Weighted-Average Exercise Price, RSUs granted (dollars per share)	26.81
Weighted-Average Exercise Price, RSUs vested (dollars per share)	46
Weighted-Average Exercise Price, RSUs forfeited (dollars per share)	43.42
Weighted-Average Exercise Price, Options outstanding (dollars per share)	$ 36.54

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Effective tax rate without the effect of discrete item	(2.40%)	(4.70%)
Discrete items	$ 0	$ (1,900,000)
Effective income tax rate		28.30%
Federal statutory tax rate	35.00%

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Narrative) (Details)	Mar. 06, 2015USD ($)	May. 31, 2014building	Mar. 31, 2016ft²building
Operating Leased Assets [Line Items]
Warranty period			1 year
Size Of Building | ft²			425,000
Number Of Office Buildings			4
Verint agreement, term	5 years
Other Commitment | $	$ 5,000,000
Duke Realty Limited Partnership
Operating Leased Assets [Line Items]
Number Of Office Buildings		3
Duke Realty Limited Partnership | Expires March 2018
Operating Leased Assets [Line Items]
Number Of Office Buildings		1
Duke Realty Limited Partnership | Expires on or after June 2025
Operating Leased Assets [Line Items]
Number Of Office Buildings		2

COMMITMENTS AND CONTINGENCIES37

COMMITMENTS AND CONTINGENCIES (Schedule Of Contractual Obligations) (Details)	Mar. 06, 2015USD ($)
Debt Instrument [Line Items]
Verint agreement	$ 5,000,000

DERIVATIVES (Details)

DERIVATIVES (Details)	1 Months Ended	3 Months Ended
	May. 31, 2015USD ($)$ / shares$ / unit	Mar. 31, 2016USD ($)	Mar. 31, 2015USD ($)
Derivative [Line Items]
Hedging gains (losses)		$ (307,000)	$ 491,000
Convertible Debt | Convertible 1.25% Senior Notes
Derivative [Line Items]
Outstanding debt	$ 150,000,000
Interest rate	1.25%
Call Option | Convertible Debt | Convertible 1.25% Senior Notes
Derivative [Line Items]
Payment for capped call premiums	$ 12,800,000
Strike price (usd per share) | $ / shares	$ 61.24
Initial cap price (usd per share) | $ / unit	79.38

DERIVATIVES (Schedule Of Deriva

DERIVATIVES (Schedule Of Derivative Notional Amount And Fair Value) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Notional Amount	$ 5,507	$ 5,267
Derivative Asset
Derivatives, Fair Value [Line Items]
Derivative Asset	31	32
Euro
Derivatives, Fair Value [Line Items]
Notional Amount	3,401	3,275
Japanese Yen
Derivatives, Fair Value [Line Items]
Notional Amount	1,599	1,495
South Africa, Rand
Derivatives, Fair Value [Line Items]
Notional Amount	357	347
US Dollar
Derivatives, Fair Value [Line Items]
Notional Amount	$ 150	$ 150

CONVERTIBLE NOTES (Details)

CONVERTIBLE NOTES (Details)	1 Months Ended	3 Months Ended
	May. 31, 2015USD ($)trading_days	Mar. 31, 2016USD ($)$ / shares
Debt Instrument [Line Items]
Company's closing stock price per share | $ / shares		$ 36.42
Common Stock
Debt Instrument [Line Items]
Company's closing stock price per share | $ / shares		$ 36.42
Convertible Debt | Convertible 1.25% Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 150,000,000
Redemption price in event of change of control, percentage	100.00%
If-converted value amount below principal		$ 60,800,000
Convertible Debt | Convertible 1.25% Senior Notes | Calendar quarter ending on September 30, 2015
Debt Instrument [Line Items]
Number of trading days, whether or not consecutive | trading_days	20
Number of consecutive trading days	30 days
Percentage of the conversion price	130.00%
Convertible Debt | Convertible 1.25% Senior Notes | Measurement period
Debt Instrument [Line Items]
Number of trading days, whether or not consecutive | trading_days	5
Number of consecutive trading days	5 days
Percentage of the conversion price	98.00%
Significant Other Observable Inputs (Level 2) | Convertible Debt | Convertible 1.25% Senior Notes
Debt Instrument [Line Items]
Fair value of notes		$ 123,800,000

CONVERTIBLE NOTES (Schedule of

CONVERTIBLE NOTES (Schedule of Debt Conversions) (Details) - Convertible Debt - Convertible 1.25% Senior Notes	1 Months Ended
	May. 31, 2015$ / shares
Debt Instrument [Line Items]
Initial Conversion Rate per $1,000 Principal Amount	16.3303
Initial Conversion Price per Share (dollars per share)	$ 61.24

CONVERTIBLE NOTES (Convertible

CONVERTIBLE NOTES (Convertible Debt) (Details) - Convertible Debt - Convertible 1.25% Senior Notes - USD ($)	Mar. 31, 2016	Dec. 31, 2015	May. 31, 2015
Debt Instrument [Line Items]
Par Value Outstanding	$ 150,000,000	$ 150,000,000
Equity Component Recorded at Issuance			$ 31,756,000
Liability Component of Par Value as of	$ 119,619,000	$ 118,022,000

CONVERTIBLE NOTES (Schedule o43

CONVERTIBLE NOTES (Schedule of Long-term Debt Instruments) (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Less: debt discount, net	$ (27,133,000)	$ (28,554,000)
Less: debt issuance costs	(3,248,000)	(3,424,000)
Convertible notes	119,619,000	118,022,000
Convertible Debt | Convertible 1.25% Senior Notes
Debt Instrument [Line Items]
Par Value Outstanding	$ 150,000,000	$ 150,000,000
Effective interest rate	6.25%