in 2017 , we began a realignment of our business by executing on the above strategies and improving the overall efficiency of our operations while continuing to drive revenue growth . as part of this realignment plan , we incurred expenses of $ 72 million in 2017 , which are reported in `` selling , general and administrative expenses `` in our consolidated statements of operations , and are comprised of severance costs , including costs related to a voluntary separation program , or vsp , lease termination costs and advisory fees related to non-routine shareholder matters and to the development of our realignment and return of capital programs . the costs related to the realignment are excluded from non-gaap operating margin 1 and non-gaap diluted earnings per share 1 . we believe the majority of the costs related to the realignment have already been incurred , although we anticipate that we may incur additional realignment costs in 2018 . _ 1 non-gaap operating margin and non-gaap earnings per share are not measurements of financial performance prepared in accordance with gaap . see “ non-gaap financial measures ” for more information and a reconciliation to the most directly comparable gaap financial measures . 32 in february 2017 we announced a plan to return $ 3.4 billion to our stockholders over a two-year period . during 2017 , as part of this plan , we entered into multiple accelerated stock repurchase agreements , collectively referred to as the asr , to repurchase $ 1.8 billion of stock and , in may 2017 , initiated a quarterly cash dividend . during 2017 , we paid dividends totaling $ 265 million and , in february 2018 , increased our quarterly dividend to $ 0.20 per share . on an ongoing basis , we review our capital return plan , considering our financial performance and liquidity position , investments required to execute our strategic initiatives , the economic outlook , regulatory changes and other relevant factors . accordingly , we are currently evaluating the impact of the tax cuts and jobs act , or tax reform act , on our capital return plan . the following table sets forth a summary of our financial results for the years ended december 31 , 2017 and 2016 : replace_table_token_7_th the key drivers of our revenue growth in 2017 as compared to 2016 were as follows : solid performance in our communications , media and technology ( previously referred to as other ) , products and resources ( previously referred to as manufacturing/retail/logistics ) and healthcare business segments with revenue growth of 17.7 % , 14.3 % and 10.1 % , respectively ; revenues in our financial services business segment grew 5.0 % as certain banking customers continue to focus on optimizing their cost structure and managing their discretionary spending ; sustained strength in the north american market where revenues grew 8.6 % ; continued penetration of the european and rest of world ( primarily asia pacific ) markets : ◦ in europe , we experienced revenue growth of 11.8 % after a negative currency impact of 1.2 % . specifically , revenues from our rest of europe customers , including revenues from our newly acquired strategic customers , increased 28.8 % inclusive of a positive currency impact of 2.0 % , while within the united kingdom we experienced a decrease in revenues of 2.2 % after a negative currency impact of 3.8 % . revenue growth in the united kingdom was negatively affected by weakness in the banking sector in that country ; ◦ revenues from our rest of world customers increased 20.9 % ; increased customer spending on discretionary projects ; expansion of our service offerings , including consulting and digital services , next-generation it solutions and platform-based solutions ; continued expansion of the market for global delivery of technology and business process services ; and increased penetration at existing customers , including strategic customers . our customers seek to apply digital technologies to transform the way they engage with customers and employees , and to develop innovative products and services and bring them quickly to market . companies are also eager to automate additional aspects of their business to improve their cost structures and increase the quality and velocity of their operations . increasingly , the relative emphasis among our customers is shifting towards investment and innovation , as reflected in accelerated demand for our digital services . we also saw an increase in demand for larger , more complex projects , including managed services contracts , which are transformational for our customers . such contracts may have longer sales cycles and ramp-up periods and could lead to greater variability in our period to period operating results . _ 2 non-gaap income from operations and non-gaap diluted earnings per share are not measurements of financial performance prepared in accordance with gaap . see “ non-gaap financial measures ” for more information and a reconciliation to the most directly comparable gaap financial measures . 33 in 2017 , our operating margin decreased to 16.8 % from 17.0 % in 2016 , while our non-gaap operating margin increased to 19.7 % 3 from 19.5 % 3 in 2016 . the decrease in our gaap operating margin was due to increases in compensation and benefit costs , the impact of realignment charges and an increase in depreciation expense , partially offset by efficiencies of leveraging our cost structure over a larger organization and a reduction in immigration costs . the increase in our non-gaap operating margin was due to efficiencies of leveraging our cost structure over a larger organization and a reduction in immigration costs , partially offset by increases in compensation and benefit costs and an increase in depreciation expense . story_separator_special_tag demand within this segment continues to be driven by increased adoption of digital technologies that are reshaping our customers ' business and operating models , as well as growing demand for analytics , supply chain consulting , implementation initiatives , smart products , transformation of business models , internet of things and omni channel commerce implementation and integration services . discretionary spending by our retail customers has been and may continue to be affected by weakness in the retail sector . revenues from our products and resources segment grew 13.5 % in 2016 . during 2016 , our energy and utilities customers and manufacturing and logistic customers contributed $ 186 million to the year-over-year growth as compared to $ 130 million for our retail and consumer goods customers and travel and hospitality customers . in 2016 , revenues from customers added during that year were $ 71 million and represented 22.5 % of the year over year revenue increase in this segment . demand within this segment in 2016 was primarily driven by the same factors that contributed to the 2017 revenue growth . communications , media and technology ( previously referred to as other ) revenues from our communications , media and technology segment grew 17.7 % in 2017 . in 2017 , revenue growth was $ 154 million among our communications and media customers and $ 127 million among our technology customers . revenues from customers added during 2017 were $ 27 million and represented 9.6 % of the year-over-year revenues increase in this segment . growth within this segment was driven by the increased adoption of digital technologies , digital content operations , services to help our customers balance rationalizing costs while creating a differentiated user experience and an expanded range of services , such as business process services . revenues from our communications , media and technology segment grew 13.5 % in 2016 . in 2016 , growth within this segment was driven by the increased adoption of digital technologies , platform engineering for cloud solutions and an expanded range of services , such as business process services . revenue growth in this segment was strong among our communications and media customers , where revenues increased by $ 99 million , and our technology customers , where revenues increased by $ 90 million . revenues from customers added during 2016 were $ 35 million and represented 18.5 % of the year-over-year revenues increase in this segment . revenues - geographic locations . revenues by geographic market , as determined by customer location , were as follows : replace_table_token_11_th north america continues to be our largest market , representing 77.3 % of total 2017 revenues and 68.3 % of total revenue growth in 2017 . the increase in revenues in 2017 in this region was primarily attributed to services related to the integration of digital technologies that are reshaping our customers ' business and operating models to align with shifts in consumer preferences , increased customer spending on discretionary projects and continued interest in using our global delivery model as a means to reduce overall technology and operations costs . in 2017 , revenue growth in europe and rest of world markets was driven by an increase in demand for an expanded range of services , such as business process services and customer adoption 38 and integration of digital technologies that are reshaping our customers ' business and operating models . revenues from our customers in europe grew 11.8 % after a negative currency impact of 1.2 % . specifically , revenues from our rest of europe customers , including revenues from our newly acquired strategic customers , increased 28.8 % inclusive of a positive currency impact of 2.0 % , while within the united kingdom we experienced a decrease in revenues of 2.2 % after a negative currency impact of 3.8 % . revenue growth in the united kingdom was negatively affected by weakness in the banking sector in that country . revenues from our rest of world customers grew 20.9 % , primarily driven by the australia and india markets . we believe that europe , the middle east , asia pacific and latin america will continue to be areas of significant investment for us as we see these regions as long term growth opportunities . in 2016 , north america was also our largest market , representing 78.2 % of total revenues and 73.5 % of total revenue growth . revenue growth in europe and rest of world markets was driven by an increase in demand for an expanded range of services , such as business process services and customer adoption and integration of digital technologies that are reshaping our customers ' business and operating models . revenues from our customers in europe grew 6.8 % , after a negative currency impact of 6.5 % . specifically , within the united kingdom , we experienced a decline in revenues of 1.0 % , after a negative currency impact of 10.0 % while revenues from our rest of europe customers increased 18.2 % after a negative currency impact of 1.4 % . revenue growth from our united kingdom and rest of europe customers was negatively affected by macroeconomic conditions , including the weakening of the british pound and uncertainty in the markets due to the result of the brexit referendum . revenues from our rest of world customers grew 22.7 % after a negative currency impact of 2.5 % and were primarily driven by the india , singapore , australia , japan and hong kong markets . cost of revenues ( exclusive of depreciation and amortization expense ) . our cost of revenues consists primarily of salaries , incentive-based compensation , stock-based compensation expense , employee benefits , project-related immigration and travel expenses for technical personnel and subcontracting costs related to revenues . our cost of revenues increased by 12.9 % during 2017 as compared to an increase of 9.0 % during 2016 . in

liquidity and capital resources our cash generated from operations has historically been our primary source of liquidity to fund operations and investments to grow our business . in addition , as of december 31 , 2017 , we had cash , cash equivalents and short-term investments of $ 5,056 million and additional available capacity under our revolving credit facility of approximately $ 675 million . the following table provides a summary of our cash flows for the three years ended december 31 : replace_table_token_17_th operating activities . the increase in cash generated from operating activities for 2017 compared to 2016 was primarily attributable to the increase in pre-tax earnings . the decrease in cash generated from operating activities for 2016 compared to 2015 was primarily attributed to the decrease in net income , which includes the impact of incremental taxes paid in connection with the india cash remittance , and higher incentive based compensation payments in 2016 as compared to 2015. trade accounts receivable increased to $ 2,865 million at december 31 , 2017 as compared to $ 2,556 million at december 31 , 2016 and $ 2,253 million at december 31 , 2015 . unbilled accounts receivable were $ 357 million at december 31 , 2017 , $ 349 million at december 31 , 2016 and $ 369 million at december 31 , 2015 . the increase in trade accounts receivable during 2017 was primarily due to increased revenues . we monitor turnover , aging and the collection of accounts receivable by customer .


 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 our cash generated from operations has historically been our primary source of liquidity to fund operations and investments to grow our business . in addition , as of december 31 , 2017 , we had cash , cash equivalents and short-term investments of $ 5,056 million and additional available capacity under our revolving credit facility of approximately $ 675 million . the following table provides a summary of our cash flows for the three years ended december 31 : replace_table_token_17_th operating activities . the increase in cash generated from operating activities for 2017 compared to 2016 was primarily attributable to the increase in pre-tax earnings . the decrease in cash generated from operating activities for 2016 compared to 2015 was primarily attributed to the decrease in net income , which includes the impact of incremental taxes paid in connection with the india cash remittance , and higher incentive based compensation payments in 2016 as compared to 2015. trade accounts receivable increased to $ 2,865 million at december 31 , 2017 as compared to $ 2,556 million at december 31 , 2016 and $ 2,253 million at december 31 , 2015 . unbilled accounts receivable were $ 357 million at december 31 , 2017 , $ 349 million at december 31 , 2016 and $ 369 million at december 31 , 2015 . the increase in trade accounts receivable during 2017 was primarily due to increased revenues . we monitor turnover , aging and the collection of accounts receivable by customer .
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 Suspicious Activity Report : in 2017 , we began a realignment of our business by executing on the above strategies and improving the overall efficiency of our operations while continuing to drive revenue growth . as part of this realignment plan , we incurred expenses of $ 72 million in 2017 , which are reported in `` selling , general and administrative expenses `` in our consolidated statements of operations , and are comprised of severance costs , including costs related to a voluntary separation program , or vsp , lease termination costs and advisory fees related to non-routine shareholder matters and to the development of our realignment and return of capital programs . the costs related to the realignment are excluded from non-gaap operating margin 1 and non-gaap diluted earnings per share 1 . we believe the majority of the costs related to the realignment have already been incurred , although we anticipate that we may incur additional realignment costs in 2018 . _ 1 non-gaap operating margin and non-gaap earnings per share are not measurements of financial performance prepared in accordance with gaap . see “ non-gaap financial measures ” for more information and a reconciliation to the most directly comparable gaap financial measures . 32 in february 2017 we announced a plan to return $ 3.4 billion to our stockholders over a two-year period . during 2017 , as part of this plan , we entered into multiple accelerated stock repurchase agreements , collectively referred to as the asr , to repurchase $ 1.8 billion of stock and , in may 2017 , initiated a quarterly cash dividend . during 2017 , we paid dividends totaling $ 265 million and , in february 2018 , increased our quarterly dividend to $ 0.20 per share . on an ongoing basis , we review our capital return plan , considering our financial performance and liquidity position , investments required to execute our strategic initiatives , the economic outlook , regulatory changes and other relevant factors . accordingly , we are currently evaluating the impact of the tax cuts and jobs act , or tax reform act , on our capital return plan . the following table sets forth a summary of our financial results for the years ended december 31 , 2017 and 2016 : replace_table_token_7_th the key drivers of our revenue growth in 2017 as compared to 2016 were as follows : solid performance in our communications , media and technology ( previously referred to as other ) , products and resources ( previously referred to as manufacturing/retail/logistics ) and healthcare business segments with revenue growth of 17.7 % , 14.3 % and 10.1 % , respectively ; revenues in our financial services business segment grew 5.0 % as certain banking customers continue to focus on optimizing their cost structure and managing their discretionary spending ; sustained strength in the north american market where revenues grew 8.6 % ; continued penetration of the european and rest of world ( primarily asia pacific ) markets : ◦ in europe , we experienced revenue growth of 11.8 % after a negative currency impact of 1.2 % . specifically , revenues from our rest of europe customers , including revenues from our newly acquired strategic customers , increased 28.8 % inclusive of a positive currency impact of 2.0 % , while within the united kingdom we experienced a decrease in revenues of 2.2 % after a negative currency impact of 3.8 % . revenue growth in the united kingdom was negatively affected by weakness in the banking sector in that country ; ◦ revenues from our rest of world customers increased 20.9 % ; increased customer spending on discretionary projects ; expansion of our service offerings , including consulting and digital services , next-generation it solutions and platform-based solutions ; continued expansion of the market for global delivery of technology and business process services ; and increased penetration at existing customers , including strategic customers . our customers seek to apply digital technologies to transform the way they engage with customers and employees , and to develop innovative products and services and bring them quickly to market . companies are also eager to automate additional aspects of their business to improve their cost structures and increase the quality and velocity of their operations . increasingly , the relative emphasis among our customers is shifting towards investment and innovation , as reflected in accelerated demand for our digital services . we also saw an increase in demand for larger , more complex projects , including managed services contracts , which are transformational for our customers . such contracts may have longer sales cycles and ramp-up periods and could lead to greater variability in our period to period operating results . _ 2 non-gaap income from operations and non-gaap diluted earnings per share are not measurements of financial performance prepared in accordance with gaap . see “ non-gaap financial measures ” for more information and a reconciliation to the most directly comparable gaap financial measures . 33 in 2017 , our operating margin decreased to 16.8 % from 17.0 % in 2016 , while our non-gaap operating margin increased to 19.7 % 3 from 19.5 % 3 in 2016 . the decrease in our gaap operating margin was due to increases in compensation and benefit costs , the impact of realignment charges and an increase in depreciation expense , partially offset by efficiencies of leveraging our cost structure over a larger organization and a reduction in immigration costs . the increase in our non-gaap operating margin was due to efficiencies of leveraging our cost structure over a larger organization and a reduction in immigration costs , partially offset by increases in compensation and benefit costs and an increase in depreciation expense . story_separator_special_tag demand within this segment continues to be driven by increased adoption of digital technologies that are reshaping our customers ' business and operating models , as well as growing demand for analytics , supply chain consulting , implementation initiatives , smart products , transformation of business models , internet of things and omni channel commerce implementation and integration services . discretionary spending by our retail customers has been and may continue to be affected by weakness in the retail sector . revenues from our products and resources segment grew 13.5 % in 2016 . during 2016 , our energy and utilities customers and manufacturing and logistic customers contributed $ 186 million to the year-over-year growth as compared to $ 130 million for our retail and consumer goods customers and travel and hospitality customers . in 2016 , revenues from customers added during that year were $ 71 million and represented 22.5 % of the year over year revenue increase in this segment . demand within this segment in 2016 was primarily driven by the same factors that contributed to the 2017 revenue growth . communications , media and technology ( previously referred to as other ) revenues from our communications , media and technology segment grew 17.7 % in 2017 . in 2017 , revenue growth was $ 154 million among our communications and media customers and $ 127 million among our technology customers . revenues from customers added during 2017 were $ 27 million and represented 9.6 % of the year-over-year revenues increase in this segment . growth within this segment was driven by the increased adoption of digital technologies , digital content operations , services to help our customers balance rationalizing costs while creating a differentiated user experience and an expanded range of services , such as business process services . revenues from our communications , media and technology segment grew 13.5 % in 2016 . in 2016 , growth within this segment was driven by the increased adoption of digital technologies , platform engineering for cloud solutions and an expanded range of services , such as business process services . revenue growth in this segment was strong among our communications and media customers , where revenues increased by $ 99 million , and our technology customers , where revenues increased by $ 90 million . revenues from customers added during 2016 were $ 35 million and represented 18.5 % of the year-over-year revenues increase in this segment . revenues - geographic locations . revenues by geographic market , as determined by customer location , were as follows : replace_table_token_11_th north america continues to be our largest market , representing 77.3 % of total 2017 revenues and 68.3 % of total revenue growth in 2017 . the increase in revenues in 2017 in this region was primarily attributed to services related to the integration of digital technologies that are reshaping our customers ' business and operating models to align with shifts in consumer preferences , increased customer spending on discretionary projects and continued interest in using our global delivery model as a means to reduce overall technology and operations costs . in 2017 , revenue growth in europe and rest of world markets was driven by an increase in demand for an expanded range of services , such as business process services and customer adoption 38 and integration of digital technologies that are reshaping our customers ' business and operating models . revenues from our customers in europe grew 11.8 % after a negative currency impact of 1.2 % . specifically , revenues from our rest of europe customers , including revenues from our newly acquired strategic customers , increased 28.8 % inclusive of a positive currency impact of 2.0 % , while within the united kingdom we experienced a decrease in revenues of 2.2 % after a negative currency impact of 3.8 % . revenue growth in the united kingdom was negatively affected by weakness in the banking sector in that country . revenues from our rest of world customers grew 20.9 % , primarily driven by the australia and india markets . we believe that europe , the middle east , asia pacific and latin america will continue to be areas of significant investment for us as we see these regions as long term growth opportunities . in 2016 , north america was also our largest market , representing 78.2 % of total revenues and 73.5 % of total revenue growth . revenue growth in europe and rest of world markets was driven by an increase in demand for an expanded range of services , such as business process services and customer adoption and integration of digital technologies that are reshaping our customers ' business and operating models . revenues from our customers in europe grew 6.8 % , after a negative currency impact of 6.5 % . specifically , within the united kingdom , we experienced a decline in revenues of 1.0 % , after a negative currency impact of 10.0 % while revenues from our rest of europe customers increased 18.2 % after a negative currency impact of 1.4 % . revenue growth from our united kingdom and rest of europe customers was negatively affected by macroeconomic conditions , including the weakening of the british pound and uncertainty in the markets due to the result of the brexit referendum . revenues from our rest of world customers grew 22.7 % after a negative currency impact of 2.5 % and were primarily driven by the india , singapore , australia , japan and hong kong markets . cost of revenues ( exclusive of depreciation and amortization expense ) . our cost of revenues consists primarily of salaries , incentive-based compensation , stock-based compensation expense , employee benefits , project-related immigration and travel expenses for technical personnel and subcontracting costs related to revenues . our cost of revenues increased by 12.9 % during 2017 as compared to an increase of 9.0 % during 2016 . in

