operating income grew at a compounded annual rate of 7.4 % with consolidated operating margins improving from 10 % in 2015 to 11 % in 2018. growth in operating income was primarily due to higher sales volume , changes to our portfolio of businesses , control and leverage of our operating expenses and the benefits of productivity programs . during 2018 , the u.s. home products market grew due to increases in new home construction and repair and remodel activities . we believe new housing construction experienced approximately 5 % growth in 2018 compared to 2017 and spending for home repair and remodeling increased approximately 4 % . in 2018 , net sales grew 4 % due to price increases to help mitigate cumulative raw material cost increases , the acquisitions in our plumbing and doors & security segments , higher sales volume primarily resulting from u.s. home products market growth , and the effect of favorable foreign exchange . in 2018 , operating income decreased 12.8 % due to unfavorable mix , asset impairment charges , higher employee-related costs and restructuring charges . during 2017 , the u.s. home products market grew due to increases in new home construction and repair and remodel activities . we believe new housing construction experienced approximately 7 % growth in 2017 compared to 2016 and spending for home repair and remodeling increased by approximately 5 % . in 2017 , net sales grew 6 % and operating income increased 9 % due to higher sales volume primarily resulting from u.s. home products market growth , the acquisitions in our plumbing segments , price increases to help mitigate cumulative raw material cost increases , the effect of favorable foreign exchange and productivity improvements . during the fourth quarter of 2018 , our plumbing segment entered into strategic partnerships with several companies who incorporate emerging technology into plumbing-related products , and at the same time acquired non-controlling equity interests in two of our partners . this includes an investment in flo technologies , inc. in september 2018 , we issued $ 600 million of unsecured senior notes ( 2018 senior notes ) in a registered public offering . the 2018 senior notes are due in 2023 with a coupon rate of 4 % . all other terms and conditions of the 2018 senior notes are substantially consistent with our other senior notes issued in june 2015 ( 2015 senior notes , and collectively with the 2018 senior notes , the senior notes ) . we used the proceeds from the 2018 senior notes offering to pay down our revolving credit facility . in september 2018 , we acquired 100 % of the membership interests of fiber composites llc ( fiberon ) , a leading u.s. manufacturer of outdoor performance materials used in decking , railing and fencing products 19 for a total purchase price of approximately $ 470.0 million , subject to certain post-closing adjustments . the acquisition of fiberon provides category expansion and product extension opportunities into the outdoor living space for our doors & security segment . we financed the transaction using cash on hand and borrowings under our revolving credit and term loan facilities . fiberon 's results of operations are included in the doors & security segment from the date of acquisition . in july 2018 , we publicly announced an internal reorganization to combine our historical doors and security segments under common leadership to drive innovation , accelerate product development , and enhance investments and business processes . in connection with the reorganization , we changed how our chief operating decision maker evaluates and allocates the resources for the combined business . reporting for the new doors & security segment began in the third quarter of 2018 and historical financial segment information has been restated to conform to the new segment presentation . in march 2018 , the company entered into a $ 350 million term loan for general corporate purposes that matures in march 2019. in august 2018 , the company amended its existing $ 350 million term loan to increase the borrowings under the term loan from $ 350 million to $ 525 million . all terms and conditions on the amended term loan remain the same as the previous $ 350 million term loan . interest rates under the term loan are variable based on libor at the time of the borrowing and the company 's long-term credit rating and can range from libor + 0.625 % to libor + 1.25 % . covenants under the term loan are the same as the existing $ 1.25 billion revolving credit agreement . in october 2017 , we acquired domotec holdings limited ( victoria + albert ) , a uk-based premium brand of standalone bathtubs , sinks , tub fillers , faucets and other accessories . in july 2017 , we acquired shaws since1897 limited ( shaws ) , a uk-based luxury plumbing products company that specializes in manufacturing and selling fireclay sinks and selling brassware and accessories . the total combined consideration paid was approximately $ 146 million , subject to certain post-closing adjustments and deferred acquisition payments . we financed both of the acquisitions using cash on hand and borrowings under our revolving credit facility . these transactions broadened our plumbing portfolio . during the third quarter of 2016 , we announced the creation of gpg , which was designed to support the growth of multiple plumbing brands with an enhanced set of products and brands , while leveraging moen 's existing global supply chain and broad distribution network . in september 2016 , we acquired rohl llc ( rohl ) , a california-based luxury plumbing company and in a related transaction , we acquired tcl manufacturing ltd , which gave us ownership of perrin & rowe , a uk manufacturer and designer of luxury kitchen and bathroom plumbing products . story_separator_special_tag operating income increased $ 16.8 million , or 4.7 % , due to the higher net sales and benefits from productivity improvements . these benefits were partially offset by commodity cost inflation , higher employee-related costs , unfavorable mix , amortization of the acquisition-related inventory fair value adjustments ( $ 5.5 million ) related to our 2017 acquisitions and increased marketing and advertising costs . in addition , 2017 operating income reflects the impact of adopting asu 2017-07 during 2018 and the reclassification of approximately $ 5.1 million from plumbing operating income to other income , net . doors & security net sales increased $ 87.8 million , or 8.0 % , due to higher sales volume , resulting from the benefit from new product introductions , the acquisition of fiberon in 2018 , price increases to help mitigate cumulative raw material cost increases and the impact of favorable foreign exchange , which were partly offset by increased non-repeating sales promotions and unfavorable mix . operating income increased $ 8.7 million , or 5.9 % , due to higher net sales and an inventory valuation accounting change benefit of $ 12.8 million , which were partially offset by non-repeating sales promotions and inventory step up amortization related to the fiberon acquisition . corporate corporate expenses decreased by $ 10.9 million mainly due to lower employee-related costs . in addition , 2017 corporate expense reflects the impact of adopting asu 2017-07 during the first quarter of 2018 and the related reclassification of approximately $ 4.5 million of 2017 income from corporate expenses to other income , net . 25 2017 compared to 2016 total fortune brands net sales net sales increased $ 298.4 million , or 6.0 % . the increase was due to higher sales volume primarily from improvement in u.s. market conditions for home products , new product introductions , the benefit from the acquisitions in our plumbing segment and price increases to help mitigate cumulative raw material cost increases as well as the benefit from favorable foreign exchange of approximately $ 4 million . these benefits were partially offset by unfavorable mix , higher sales promotions , and sales rebates . cost of products sold cost of products sold increased $ 169.5 million , or 5.3 % , due to higher net sales , including the impact of the acquisitions in our plumbing segment and raw material cost increases , partially offset by the benefit of productivity improvements . selling , general and administrative expenses selling , general and administrative expenses increased $ 61.4 million , or 5.4 % , due to higher employee-related costs and advertising costs as well as the impact of the acquisitions in our plumbing segment . amortization of intangible assets amortization of intangible assets increased $ 3.6 million primarily due to the acquisitions in our plumbing segment , partially offset by a decrease relating to a definite-lived customer relationship intangible in our doors & security segment that was fully amortized during the second quarter of 2017. loss on sale of product line in april 2017 , we completed the sale of field id , our cloud-based inspection and safety compliance software product line included in our doors & security segment . we recorded a pre-tax loss of $ 2.4 million as the result of this sale . asset impairment charges asset impairment charges of $ 3.2 million relate to our decision in the first quarter of 2017 to sell field id . restructuring charges restructuring charges of $ 8.3 million in 2017 primarily related to severance costs within all of our segments as well as charges associated with a plant relocation in our cabinets segment . restructuring charges of $ 13.9 million in 2016 primarily related to the severance costs and charges associated with the relocation of a manufacturing facility within our doors & security segment . operating income operating income increased $ 63.9 million or 10.3 % . operating income increased due to higher net sales , including the benefit from acquisitions in our plumbing segment and productivity improvements . these benefits were partially offset by unfavorable mix , higher employee-related costs , raw material , labor inflation and advertising costs . 2017 and 2016 were adjusted to reflect the impact of adopting asu 2017-07 and reclassification of $ 9.6 million and $ 14.1 million , respectively from operating income to other income , net . 26 interest expense interest expense of $ 49.4 million was $ 0.3 million higher as compared to last year primarily due to higher average interest rates which was partially offset by lower average borrowings and the absence of the write-off of debt issuance costs incurred in 2016. other income , net other income , net , was of $ 1.7 million in the twelve months ended december 31 , 2017 compared to $ 12.6 million in the twelve months ended december 31 , 2016. the decrease of $ 10.9 million was primarily due to a $ 7.0 million impairment charge in 2017 pertaining to a cost method investment and a decrease in defined benefit income of $ 4.5 million . income taxes the effective income tax rates for 2017 and 2016 were 25.1 % and 29.2 % respectively . the 2017 effective income tax rate was favorably impacted by the tax act ( $ 25.7 million ) . the effective income tax rates for 2017 and 2016 were favorably impacted by the tax benefit attributable to share-based compensation ( asu 2016-09 ) deduction ( $ 23.9 million and $ 27.8 million , respectively ) , the domestic production activity ( internal revenue code section 199 ) deduction ( $ 10.9 million and $ 13.0 million , respectively ) and favorable tax rates in foreign jurisdictions ( $ 8.3 million and $ 7.6 million , respectively ) , offset by state and local taxes and increases to uncertain tax positions ( $ 11.6 million and $ 13.2 million , respectively ) . income from continuing operations net

liquidity and capital resources our primary liquidity needs are to support working capital requirements , fund capital expenditures and service indebtedness , as well as to finance acquisitions , repurchase shares of our common stock and pay dividends to stockholders , as deemed appropriate . our principal sources of liquidity are cash on hand , cash flows from operating activities , availability under our credit facility and debt issuances in the capital markets . our operating income is generated by our subsidiaries . there are no restrictions on the ability of our subsidiaries to pay dividends or make other distributions to fortune brands . in december 2018 , our board of directors increased the quarterly cash dividend by 10 % to $ 0.22 per share of our common stock . our board of directors will continue to evaluate dividend payment opportunities on a quarterly basis . there can be no assurance as to when and if future dividends will be paid , and at what level , because the payment of dividends is dependent on our financial condition , results of operations , cash flows , capital requirements and other factors deemed relevant by our board of directors . in september 2018 , we issued $ 600 million of unsecured senior notes ( 2018 senior notes ) in a registered public offering . the 2018 senior notes are due in 2023 with a coupon rate of 4 % . we used the proceeds from the senior notes offering to pay down our revolving credit facility . on december 31 , 2018 , the outstanding amount of the 2018 senior notes , net of underwriting commissions , price discounts , and debt issuance costs , was $ 595.0 million . in march 2018 , the company entered into a $ 350 million term loan for general corporate purposes that matures in march 2019. in august 2018 , the company amended its existing $ 350 million term loan to increase the borrowings under the term loan from $ 350 million to $ 525 million . all terms and conditions on the amended term loan remain the same as the previous $ 350 million term loan .


 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 primary liquidity needs are to support working capital requirements , fund capital expenditures and service indebtedness , as well as to finance acquisitions , repurchase shares of our common stock and pay dividends to stockholders , as deemed appropriate . our principal sources of liquidity are cash on hand , cash flows from operating activities , availability under our credit facility and debt issuances in the capital markets . our operating income is generated by our subsidiaries . there are no restrictions on the ability of our subsidiaries to pay dividends or make other distributions to fortune brands . in december 2018 , our board of directors increased the quarterly cash dividend by 10 % to $ 0.22 per share of our common stock . our board of directors will continue to evaluate dividend payment opportunities on a quarterly basis . there can be no assurance as to when and if future dividends will be paid , and at what level , because the payment of dividends is dependent on our financial condition , results of operations , cash flows , capital requirements and other factors deemed relevant by our board of directors . in september 2018 , we issued $ 600 million of unsecured senior notes ( 2018 senior notes ) in a registered public offering . the 2018 senior notes are due in 2023 with a coupon rate of 4 % . we used the proceeds from the senior notes offering to pay down our revolving credit facility . on december 31 , 2018 , the outstanding amount of the 2018 senior notes , net of underwriting commissions , price discounts , and debt issuance costs , was $ 595.0 million . in march 2018 , the company entered into a $ 350 million term loan for general corporate purposes that matures in march 2019. in august 2018 , the company amended its existing $ 350 million term loan to increase the borrowings under the term loan from $ 350 million to $ 525 million . all terms and conditions on the amended term loan remain the same as the previous $ 350 million term loan .
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 Suspicious Activity Report : operating income grew at a compounded annual rate of 7.4 % with consolidated operating margins improving from 10 % in 2015 to 11 % in 2018. growth in operating income was primarily due to higher sales volume , changes to our portfolio of businesses , control and leverage of our operating expenses and the benefits of productivity programs . during 2018 , the u.s. home products market grew due to increases in new home construction and repair and remodel activities . we believe new housing construction experienced approximately 5 % growth in 2018 compared to 2017 and spending for home repair and remodeling increased approximately 4 % . in 2018 , net sales grew 4 % due to price increases to help mitigate cumulative raw material cost increases , the acquisitions in our plumbing and doors & security segments , higher sales volume primarily resulting from u.s. home products market growth , and the effect of favorable foreign exchange . in 2018 , operating income decreased 12.8 % due to unfavorable mix , asset impairment charges , higher employee-related costs and restructuring charges . during 2017 , the u.s. home products market grew due to increases in new home construction and repair and remodel activities . we believe new housing construction experienced approximately 7 % growth in 2017 compared to 2016 and spending for home repair and remodeling increased by approximately 5 % . in 2017 , net sales grew 6 % and operating income increased 9 % due to higher sales volume primarily resulting from u.s. home products market growth , the acquisitions in our plumbing segments , price increases to help mitigate cumulative raw material cost increases , the effect of favorable foreign exchange and productivity improvements . during the fourth quarter of 2018 , our plumbing segment entered into strategic partnerships with several companies who incorporate emerging technology into plumbing-related products , and at the same time acquired non-controlling equity interests in two of our partners . this includes an investment in flo technologies , inc. in september 2018 , we issued $ 600 million of unsecured senior notes ( 2018 senior notes ) in a registered public offering . the 2018 senior notes are due in 2023 with a coupon rate of 4 % . all other terms and conditions of the 2018 senior notes are substantially consistent with our other senior notes issued in june 2015 ( 2015 senior notes , and collectively with the 2018 senior notes , the senior notes ) . we used the proceeds from the 2018 senior notes offering to pay down our revolving credit facility . in september 2018 , we acquired 100 % of the membership interests of fiber composites llc ( fiberon ) , a leading u.s. manufacturer of outdoor performance materials used in decking , railing and fencing products 19 for a total purchase price of approximately $ 470.0 million , subject to certain post-closing adjustments . the acquisition of fiberon provides category expansion and product extension opportunities into the outdoor living space for our doors & security segment . we financed the transaction using cash on hand and borrowings under our revolving credit and term loan facilities . fiberon 's results of operations are included in the doors & security segment from the date of acquisition . in july 2018 , we publicly announced an internal reorganization to combine our historical doors and security segments under common leadership to drive innovation , accelerate product development , and enhance investments and business processes . in connection with the reorganization , we changed how our chief operating decision maker evaluates and allocates the resources for the combined business . reporting for the new doors & security segment began in the third quarter of 2018 and historical financial segment information has been restated to conform to the new segment presentation . in march 2018 , the company entered into a $ 350 million term loan for general corporate purposes that matures in march 2019. in august 2018 , the company amended its existing $ 350 million term loan to increase the borrowings under the term loan from $ 350 million to $ 525 million . all terms and conditions on the amended term loan remain the same as the previous $ 350 million term loan . interest rates under the term loan are variable based on libor at the time of the borrowing and the company 's long-term credit rating and can range from libor + 0.625 % to libor + 1.25 % . covenants under the term loan are the same as the existing $ 1.25 billion revolving credit agreement . in october 2017 , we acquired domotec holdings limited ( victoria + albert ) , a uk-based premium brand of standalone bathtubs , sinks , tub fillers , faucets and other accessories . in july 2017 , we acquired shaws since1897 limited ( shaws ) , a uk-based luxury plumbing products company that specializes in manufacturing and selling fireclay sinks and selling brassware and accessories . the total combined consideration paid was approximately $ 146 million , subject to certain post-closing adjustments and deferred acquisition payments . we financed both of the acquisitions using cash on hand and borrowings under our revolving credit facility . these transactions broadened our plumbing portfolio . during the third quarter of 2016 , we announced the creation of gpg , which was designed to support the growth of multiple plumbing brands with an enhanced set of products and brands , while leveraging moen 's existing global supply chain and broad distribution network . in september 2016 , we acquired rohl llc ( rohl ) , a california-based luxury plumbing company and in a related transaction , we acquired tcl manufacturing ltd , which gave us ownership of perrin & rowe , a uk manufacturer and designer of luxury kitchen and bathroom plumbing products . story_separator_special_tag operating income increased $ 16.8 million , or 4.7 % , due to the higher net sales and benefits from productivity improvements . these benefits were partially offset by commodity cost inflation , higher employee-related costs , unfavorable mix , amortization of the acquisition-related inventory fair value adjustments ( $ 5.5 million ) related to our 2017 acquisitions and increased marketing and advertising costs . in addition , 2017 operating income reflects the impact of adopting asu 2017-07 during 2018 and the reclassification of approximately $ 5.1 million from plumbing operating income to other income , net . doors & security net sales increased $ 87.8 million , or 8.0 % , due to higher sales volume , resulting from the benefit from new product introductions , the acquisition of fiberon in 2018 , price increases to help mitigate cumulative raw material cost increases and the impact of favorable foreign exchange , which were partly offset by increased non-repeating sales promotions and unfavorable mix . operating income increased $ 8.7 million , or 5.9 % , due to higher net sales and an inventory valuation accounting change benefit of $ 12.8 million , which were partially offset by non-repeating sales promotions and inventory step up amortization related to the fiberon acquisition . corporate corporate expenses decreased by $ 10.9 million mainly due to lower employee-related costs . in addition , 2017 corporate expense reflects the impact of adopting asu 2017-07 during the first quarter of 2018 and the related reclassification of approximately $ 4.5 million of 2017 income from corporate expenses to other income , net . 25 2017 compared to 2016 total fortune brands net sales net sales increased $ 298.4 million , or 6.0 % . the increase was due to higher sales volume primarily from improvement in u.s. market conditions for home products , new product introductions , the benefit from the acquisitions in our plumbing segment and price increases to help mitigate cumulative raw material cost increases as well as the benefit from favorable foreign exchange of approximately $ 4 million . these benefits were partially offset by unfavorable mix , higher sales promotions , and sales rebates . cost of products sold cost of products sold increased $ 169.5 million , or 5.3 % , due to higher net sales , including the impact of the acquisitions in our plumbing segment and raw material cost increases , partially offset by the benefit of productivity improvements . selling , general and administrative expenses selling , general and administrative expenses increased $ 61.4 million , or 5.4 % , due to higher employee-related costs and advertising costs as well as the impact of the acquisitions in our plumbing segment . amortization of intangible assets amortization of intangible assets increased $ 3.6 million primarily due to the acquisitions in our plumbing segment , partially offset by a decrease relating to a definite-lived customer relationship intangible in our doors & security segment that was fully amortized during the second quarter of 2017. loss on sale of product line in april 2017 , we completed the sale of field id , our cloud-based inspection and safety compliance software product line included in our doors & security segment . we recorded a pre-tax loss of $ 2.4 million as the result of this sale . asset impairment charges asset impairment charges of $ 3.2 million relate to our decision in the first quarter of 2017 to sell field id . restructuring charges restructuring charges of $ 8.3 million in 2017 primarily related to severance costs within all of our segments as well as charges associated with a plant relocation in our cabinets segment . restructuring charges of $ 13.9 million in 2016 primarily related to the severance costs and charges associated with the relocation of a manufacturing facility within our doors & security segment . operating income operating income increased $ 63.9 million or 10.3 % . operating income increased due to higher net sales , including the benefit from acquisitions in our plumbing segment and productivity improvements . these benefits were partially offset by unfavorable mix , higher employee-related costs , raw material , labor inflation and advertising costs . 2017 and 2016 were adjusted to reflect the impact of adopting asu 2017-07 and reclassification of $ 9.6 million and $ 14.1 million , respectively from operating income to other income , net . 26 interest expense interest expense of $ 49.4 million was $ 0.3 million higher as compared to last year primarily due to higher average interest rates which was partially offset by lower average borrowings and the absence of the write-off of debt issuance costs incurred in 2016. other income , net other income , net , was of $ 1.7 million in the twelve months ended december 31 , 2017 compared to $ 12.6 million in the twelve months ended december 31 , 2016. the decrease of $ 10.9 million was primarily due to a $ 7.0 million impairment charge in 2017 pertaining to a cost method investment and a decrease in defined benefit income of $ 4.5 million . income taxes the effective income tax rates for 2017 and 2016 were 25.1 % and 29.2 % respectively . the 2017 effective income tax rate was favorably impacted by the tax act ( $ 25.7 million ) . the effective income tax rates for 2017 and 2016 were favorably impacted by the tax benefit attributable to share-based compensation ( asu 2016-09 ) deduction ( $ 23.9 million and $ 27.8 million , respectively ) , the domestic production activity ( internal revenue code section 199 ) deduction ( $ 10.9 million and $ 13.0 million , respectively ) and favorable tax rates in foreign jurisdictions ( $ 8.3 million and $ 7.6 million , respectively ) , offset by state and local taxes and increases to uncertain tax positions ( $ 11.6 million and $ 13.2 million , respectively ) . income from continuing operations net

