the program includes , among other things , the elimination of full-time positions and facilities consolidation . we currently expect to record in the aggregate approximately $ 60.0 million to $ 100.0 million in pre-tax restructuring charges associated with this program . included in these pre-tax charges are approximately $ 55.0 million to $ 70.0 million related to employee severance arrangements and approximately $ 5.0 million to $ 30.0 million related to the consolidation of leased facilities and other charges associated with the program . on november 13 , 2017 , we announced that our board approved an increase of an additional $ 1.7 billion to our existing share repurchase program . additionally , on november 15 , 2017 , we issued $ 750.0 million of unsecured senior notes due 31 december 1 , 2027 ( the `` 2027 notes `` ) . the net proceeds from this offering were approximately $ 741.0 million , after deducting the underwriting discount and estimated offering expenses payable by us . net proceeds from this offering were used to repurchase $ 750.0 million of shares of our common stock through an asr program . on february 2 , 2018 , we entered into an asr transaction with goldman sachs & co. llc ( “ dealer ” ) to pay an aggregate of $ 750.0 million in exchange for the delivery of approximately 6.5 million shares of our common stock based on current market prices . the purchase price per share under the asr is subject to adjustment and is expected to equal the volume-weighted average price of our common stock during the term of the asr , less a discount . the exact number of shares repurchased pursuant to the asr will be determined based on such purchase price . the asr transaction is expected to be completed by the end of april 2018. the asr was entered into pursuant to our existing share repurchase program . after taking into account the additional $ 750.0 million shares repurchased pursuant to this asr , we will have approximately $ 500.0 million of remaining share repurchase authorization available . on february 6 , 2018 , we acquired all of the issued and outstanding securities of cedexis , inc. ( “ cedexis ” ) whose solution is a real-time data driven service for dynamically optimizing the flow of traffic across public clouds , data centers that provides a dynamic and reliable way to route and manage internet performance for customers moving towards hybrid and multi-cloud deployments . the total preliminary cash consideration for this transaction was approximately $ 66.5 million , net of $ 6.2 million cash acquired . during the year ended december 31 , 2017 , we accelerated our innovation in the cloud , with the introduction of new services , features and capabilities in our cloud solution to build out a comprehensive secure digital workspace . we are seeing an increasing shift in the way customers are purchasing our solutions , evolving towards a more subscription-based business model . we expect our transition to a subscription-based business model to provide financial and operational benefits to citrix , including by increasing customer life-time-value , expanding our customer use-cases and innovation opportunities , and extending the use of citrix services to securely deliver a broader array of applications , including web , saas apps and services . during the year ended december 31 , 2017 , we continued to report our revenues in four groupings : ( 1 ) product and license ; ( 2 ) license updates and maintenance ; ( 3 ) professional services ; and ( 4 ) software as a service . beginning in the first quarter of fiscal year 2018 , we plan to adjust our groupings for reporting revenue to align with our subscription-based business model transition as follows : ( 1 ) product and license revenue from perpetual product offerings ; ( 2 ) support and services revenue for perpetual product and license offerings ; and ( 3 ) subscription revenue , which will include revenue from our ratable cloud services offerings and on-premise subscriptions as well as revenue from our csp offerings . summary of results for the year ended december 31 , 2017 compared to the year ended december 31 , 2016 , we delivered the following financial performance : product and license revenue decreased 2.9 % to $ 857.3 million ; software as a service revenue increased 30.5 % to $ 175.8 million ; license updates and maintenance revenue increased 4.6 % to $ 1.7 billion ; professional services revenue increased 0.4 % to $ 131.7 million ; gross margin as a percentage of revenue decreased 0.8 % to 84.4 % ; operating income increased 1.9 % to $ 571.0 million ; and diluted earnings per share from continuing operations decreased 95.3 % to $ 0.14 . the decrease in our product and licenses revenue was primarily driven by lower overall sales of our networking products . our software as a service revenues increased due to increased sales of our content collaboration offerings and our workspace services offerings delivered via the cloud . the increase in license updates and maintenance revenue was primarily due to increased sales of software maintenance revenues across our workspace services and networking products , partially offset by a decrease in our subscription advantage product , which has reached end of sale , and our technical support as customers continue to migrate to our new software maintenance solutions . professional services revenue remained consistent when comparing 2017 to 2016 . we currently expect total revenue to increase when comparing the first quarter of 2018 to the first quarter of 2017. in addition , when comparing the 2018 fiscal year to the 2017 fiscal year , we currently expect total revenue to increase . gross margin remained consistent when comparing 2017 to 2016 . story_separator_special_tag critical estimates in valuing certain other intangible assets include but are not limited to future expected cash flows from customer contracts , customer retention rates , customer lists , distribution agreements , patents , brand awareness and market position , as well as discount rates . management 's estimates of fair value are based upon assumptions believed to be reasonable . unanticipated events and circumstances may occur which may affect the accuracy or validity of such assumptions , estimates or actual results . we monitor acquired intangible assets for impairment on a periodic basis by reviewing for indicators of impairment . if an indicator exists we compare the estimated net realizable value to the unamortized cost of the intangible asset . the recoverability of the intangible assets is primarily dependent upon our ability to commercialize solutions utilizing the acquired technologies , retain existing customers and customer contracts , and maintain brand awareness . the estimated net realizable value of the acquired intangible assets is based on the estimated undiscounted future cash flows derived from such intangible assets . our assumptions about future revenues and expenses require significant judgment associated with the forecast of the performance of our solutions , customer retention rates and ability to secure and maintain our market position . actual revenues and costs could vary significantly from these forecasted amounts . if these solutions are not ultimately accepted by our customers and distributors , and there is no alternative future use for the technology ; or if we fail to retain acquired customers or successfully market acquired brands , we could determine that some or all of the remaining $ 142.0 million carrying value of our acquired intangible assets is impaired . in the event of impairment , we would record an impairment charge to earnings that could have a material adverse effect on our results of operations . goodwill the excess of the fair value of purchase price over the fair values of the identifiable assets and liabilities from our acquisitions is recorded as goodwill . at december 31 , 2017 , we had $ 1.61 billion in goodwill related to our acquisition s. our revenues are derived from sales of our workspace services solutions , networking products , and related license updates and maintenance , and our content collaboration offerings . as part of our continued transformation , effective january 1 , 2016 , we reorganized a part of our business by creating a new content collaboration product grouping . in connection with this change , we performed an assessment of our goodwill reporting units and determined that the reorganization resulted in the identification of two goodwill reporting units ( excluding the goto business ) . additionally , on january 31 , 2017 , we completed the spin-off of the goto business and $ 380.9 million of the goodwill attributable to the goto business as of december 31 , 2016 was distributed to getgo . as a result of the spin-off , we performed an assessment of the two remaining goodwill reporting units and determined that they remain unchanged . see note 12 to our consolidated financial statements included in this annual report on form 10-k for the year ended december 31 , 2017 for additional information regarding our reportable segment . we account for goodwill in accordance with fasb 's authoritative guidance , which requires that goodwill and certain intangible assets are not amortized , but are subject to an annual impairment test . we complete our goodwill and certain intangible assets impairment tests on an annual basis , during the fourth quarter of our fiscal year , or more frequently , if changes in facts and circumstances indicate that an impairment in the value of goodwill and certain intangible assets recorded on our balance sheet may exist . in the fourth quarter of 2017 , we performed a qualitative assessment to determine whether further quantitative impairment testing for goodwill and certain intangible assets is necessary , and we refer to this assessment as the qualitative screen . in performing the qualitative screen , we are required to make assumptions and judgments including but not limited to the following : the evaluation of macroeconomic conditions as related to our business , industry and market trends , and the overall future financial performance of our reporting units and future opportunities in the markets in which they operate . if after performing the qualitative screen impairment indicators are present , we would perform a quantitative impairment test to estimate the fair value of goodwill and certain intangible assets . in doing so , we would estimate future revenue , consider market factors and estimate our future cash flows . based on these key assumptions , judgments and estimates , we determine whether we need to record an impairment charge to reduce the value of the goodwill and certain intangible assets carried on our balance sheet to its estimated fair value . assumptions , judgments and estimates about future values are complex and often subjective and can be affected by a variety of factors , including external factors such as industry and economic trends , and internal factors such as changes in our business strategy or our internal forecasts . although we believe the assumptions , judgments and estimates we have made have been reasonable and appropriate , different assumptions , judgments and estimates could materially affect our results of operations . as a result of the qualitative screen , no further quantitative impairment test was deemed necessary . there was no impairment of goodwill as a result of the annual impairment tests completed during the 36 fourth quarters of 2017 and 2016 . income taxes we are required to estimate our income taxes in each of the jurisdictions in which we operate as part of the process of preparing our consolidated financial statements . at december 31 , 2017 , we had $ 152.3 million in net deferred tax assets . the authoritative guidance requires a

liquidity and capital resources during 2017 , we generated continuing operating cash flows of $ 964.3 million . these operating cash flows related primarily to net income from continuing operations of $ 22.0 million , adjusted for , among other things , non-cash charges , depreciation and amortization expenses of $ 170.0 million , stock-based compensation expense of $ 165.1 million , deferred income tax expense of $ 94.2 million , and amortization of debt discount and transaction costs of $ 38.3 million . also contributing to these cash inflows was a change in operating assets and liabilities of $ 470.5 million , net of effects of acquisitions . the change in our net operating assets and liabilities was primarily a result of changes in net income taxes of $ 318.8 million due to tax reform , and changes in deferred revenue of $ 174.4 million . our continuing operations investing activities used $ 60.0 million of cash consisting primarily of cash paid for net purchases of investments of $ 86.4 million , cash paid for the purchase of property and equipment of $ 80.9 million , cash paid for acquisitions of $ 60.4 million , and cash paid for licensing agreements and technology of $ 7.4 million .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources during 2017 , we generated continuing operating cash flows of $ 964.3 million . these operating cash flows related primarily to net income from continuing operations of $ 22.0 million , adjusted for , among other things , non-cash charges , depreciation and amortization expenses of $ 170.0 million , stock-based compensation expense of $ 165.1 million , deferred income tax expense of $ 94.2 million , and amortization of debt discount and transaction costs of $ 38.3 million . also contributing to these cash inflows was a change in operating assets and liabilities of $ 470.5 million , net of effects of acquisitions . the change in our net operating assets and liabilities was primarily a result of changes in net income taxes of $ 318.8 million due to tax reform , and changes in deferred revenue of $ 174.4 million . our continuing operations investing activities used $ 60.0 million of cash consisting primarily of cash paid for net purchases of investments of $ 86.4 million , cash paid for the purchase of property and equipment of $ 80.9 million , cash paid for acquisitions of $ 60.4 million , and cash paid for licensing agreements and technology of $ 7.4 million .
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 Suspicious Activity Report : the program includes , among other things , the elimination of full-time positions and facilities consolidation . we currently expect to record in the aggregate approximately $ 60.0 million to $ 100.0 million in pre-tax restructuring charges associated with this program . included in these pre-tax charges are approximately $ 55.0 million to $ 70.0 million related to employee severance arrangements and approximately $ 5.0 million to $ 30.0 million related to the consolidation of leased facilities and other charges associated with the program . on november 13 , 2017 , we announced that our board approved an increase of an additional $ 1.7 billion to our existing share repurchase program . additionally , on november 15 , 2017 , we issued $ 750.0 million of unsecured senior notes due 31 december 1 , 2027 ( the `` 2027 notes `` ) . the net proceeds from this offering were approximately $ 741.0 million , after deducting the underwriting discount and estimated offering expenses payable by us . net proceeds from this offering were used to repurchase $ 750.0 million of shares of our common stock through an asr program . on february 2 , 2018 , we entered into an asr transaction with goldman sachs & co. llc ( “ dealer ” ) to pay an aggregate of $ 750.0 million in exchange for the delivery of approximately 6.5 million shares of our common stock based on current market prices . the purchase price per share under the asr is subject to adjustment and is expected to equal the volume-weighted average price of our common stock during the term of the asr , less a discount . the exact number of shares repurchased pursuant to the asr will be determined based on such purchase price . the asr transaction is expected to be completed by the end of april 2018. the asr was entered into pursuant to our existing share repurchase program . after taking into account the additional $ 750.0 million shares repurchased pursuant to this asr , we will have approximately $ 500.0 million of remaining share repurchase authorization available . on february 6 , 2018 , we acquired all of the issued and outstanding securities of cedexis , inc. ( “ cedexis ” ) whose solution is a real-time data driven service for dynamically optimizing the flow of traffic across public clouds , data centers that provides a dynamic and reliable way to route and manage internet performance for customers moving towards hybrid and multi-cloud deployments . the total preliminary cash consideration for this transaction was approximately $ 66.5 million , net of $ 6.2 million cash acquired . during the year ended december 31 , 2017 , we accelerated our innovation in the cloud , with the introduction of new services , features and capabilities in our cloud solution to build out a comprehensive secure digital workspace . we are seeing an increasing shift in the way customers are purchasing our solutions , evolving towards a more subscription-based business model . we expect our transition to a subscription-based business model to provide financial and operational benefits to citrix , including by increasing customer life-time-value , expanding our customer use-cases and innovation opportunities , and extending the use of citrix services to securely deliver a broader array of applications , including web , saas apps and services . during the year ended december 31 , 2017 , we continued to report our revenues in four groupings : ( 1 ) product and license ; ( 2 ) license updates and maintenance ; ( 3 ) professional services ; and ( 4 ) software as a service . beginning in the first quarter of fiscal year 2018 , we plan to adjust our groupings for reporting revenue to align with our subscription-based business model transition as follows : ( 1 ) product and license revenue from perpetual product offerings ; ( 2 ) support and services revenue for perpetual product and license offerings ; and ( 3 ) subscription revenue , which will include revenue from our ratable cloud services offerings and on-premise subscriptions as well as revenue from our csp offerings . summary of results for the year ended december 31 , 2017 compared to the year ended december 31 , 2016 , we delivered the following financial performance : product and license revenue decreased 2.9 % to $ 857.3 million ; software as a service revenue increased 30.5 % to $ 175.8 million ; license updates and maintenance revenue increased 4.6 % to $ 1.7 billion ; professional services revenue increased 0.4 % to $ 131.7 million ; gross margin as a percentage of revenue decreased 0.8 % to 84.4 % ; operating income increased 1.9 % to $ 571.0 million ; and diluted earnings per share from continuing operations decreased 95.3 % to $ 0.14 . the decrease in our product and licenses revenue was primarily driven by lower overall sales of our networking products . our software as a service revenues increased due to increased sales of our content collaboration offerings and our workspace services offerings delivered via the cloud . the increase in license updates and maintenance revenue was primarily due to increased sales of software maintenance revenues across our workspace services and networking products , partially offset by a decrease in our subscription advantage product , which has reached end of sale , and our technical support as customers continue to migrate to our new software maintenance solutions . professional services revenue remained consistent when comparing 2017 to 2016 . we currently expect total revenue to increase when comparing the first quarter of 2018 to the first quarter of 2017. in addition , when comparing the 2018 fiscal year to the 2017 fiscal year , we currently expect total revenue to increase . gross margin remained consistent when comparing 2017 to 2016 . story_separator_special_tag critical estimates in valuing certain other intangible assets include but are not limited to future expected cash flows from customer contracts , customer retention rates , customer lists , distribution agreements , patents , brand awareness and market position , as well as discount rates . management 's estimates of fair value are based upon assumptions believed to be reasonable . unanticipated events and circumstances may occur which may affect the accuracy or validity of such assumptions , estimates or actual results . we monitor acquired intangible assets for impairment on a periodic basis by reviewing for indicators of impairment . if an indicator exists we compare the estimated net realizable value to the unamortized cost of the intangible asset . the recoverability of the intangible assets is primarily dependent upon our ability to commercialize solutions utilizing the acquired technologies , retain existing customers and customer contracts , and maintain brand awareness . the estimated net realizable value of the acquired intangible assets is based on the estimated undiscounted future cash flows derived from such intangible assets . our assumptions about future revenues and expenses require significant judgment associated with the forecast of the performance of our solutions , customer retention rates and ability to secure and maintain our market position . actual revenues and costs could vary significantly from these forecasted amounts . if these solutions are not ultimately accepted by our customers and distributors , and there is no alternative future use for the technology ; or if we fail to retain acquired customers or successfully market acquired brands , we could determine that some or all of the remaining $ 142.0 million carrying value of our acquired intangible assets is impaired . in the event of impairment , we would record an impairment charge to earnings that could have a material adverse effect on our results of operations . goodwill the excess of the fair value of purchase price over the fair values of the identifiable assets and liabilities from our acquisitions is recorded as goodwill . at december 31 , 2017 , we had $ 1.61 billion in goodwill related to our acquisition s. our revenues are derived from sales of our workspace services solutions , networking products , and related license updates and maintenance , and our content collaboration offerings . as part of our continued transformation , effective january 1 , 2016 , we reorganized a part of our business by creating a new content collaboration product grouping . in connection with this change , we performed an assessment of our goodwill reporting units and determined that the reorganization resulted in the identification of two goodwill reporting units ( excluding the goto business ) . additionally , on january 31 , 2017 , we completed the spin-off of the goto business and $ 380.9 million of the goodwill attributable to the goto business as of december 31 , 2016 was distributed to getgo . as a result of the spin-off , we performed an assessment of the two remaining goodwill reporting units and determined that they remain unchanged . see note 12 to our consolidated financial statements included in this annual report on form 10-k for the year ended december 31 , 2017 for additional information regarding our reportable segment . we account for goodwill in accordance with fasb 's authoritative guidance , which requires that goodwill and certain intangible assets are not amortized , but are subject to an annual impairment test . we complete our goodwill and certain intangible assets impairment tests on an annual basis , during the fourth quarter of our fiscal year , or more frequently , if changes in facts and circumstances indicate that an impairment in the value of goodwill and certain intangible assets recorded on our balance sheet may exist . in the fourth quarter of 2017 , we performed a qualitative assessment to determine whether further quantitative impairment testing for goodwill and certain intangible assets is necessary , and we refer to this assessment as the qualitative screen . in performing the qualitative screen , we are required to make assumptions and judgments including but not limited to the following : the evaluation of macroeconomic conditions as related to our business , industry and market trends , and the overall future financial performance of our reporting units and future opportunities in the markets in which they operate . if after performing the qualitative screen impairment indicators are present , we would perform a quantitative impairment test to estimate the fair value of goodwill and certain intangible assets . in doing so , we would estimate future revenue , consider market factors and estimate our future cash flows . based on these key assumptions , judgments and estimates , we determine whether we need to record an impairment charge to reduce the value of the goodwill and certain intangible assets carried on our balance sheet to its estimated fair value . assumptions , judgments and estimates about future values are complex and often subjective and can be affected by a variety of factors , including external factors such as industry and economic trends , and internal factors such as changes in our business strategy or our internal forecasts . although we believe the assumptions , judgments and estimates we have made have been reasonable and appropriate , different assumptions , judgments and estimates could materially affect our results of operations . as a result of the qualitative screen , no further quantitative impairment test was deemed necessary . there was no impairment of goodwill as a result of the annual impairment tests completed during the 36 fourth quarters of 2017 and 2016 . income taxes we are required to estimate our income taxes in each of the jurisdictions in which we operate as part of the process of preparing our consolidated financial statements . at december 31 , 2017 , we had $ 152.3 million in net deferred tax assets . the authoritative guidance requires a

