the acquisition and development of properties also entails various risks , including the risk that our investments may not perform as expected . for example , acquired existing and acquired and developed new properties may not sustain and or achieve anticipated occupancy and rental rate levels . with respect to acquired and developed new properties , we may not be able to complete construction on schedule or within budget , resulting in increased debt service expense and construction costs and delays in leasing the properties . also , we face significant competition for attractive acquisition and development opportunities from other well-capitalized real estate investors , including publicly-traded reits and private investors . further , as discussed below , we may not be able to finance the acquisition and development opportunities we identify . if we were unable to acquire and develop sufficient additional properties on favorable terms , or if such investments did not perform as expected , our revenue growth would be limited and our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units would be adversely affected . 27 we also generate income from the sale of our properties ( including existing buildings , buildings which we have developed or re-developed on a merchant basis and land ) . the gain or loss on , and fees from , the sale of such properties are included in our income and can be a significant source of funds , in addition to revenues generated from rental income and tenant recoveries . proceeds from sales are used to repay outstanding debt and , market conditions permitting , may be used to fund the acquisition of existing industrial properties , and the acquisition and development of new industrial properties . the sale of properties is impacted , variously , by property specific , market specific , general economic and other conditions , many of which are beyond our control . the sale of properties also entails various risks , including competition from other sellers and the availability of attractive financing for potential buyers of our properties . further , our ability to sell properties is limited by safe harbor rules applying to reits under the code which relate to the number of properties that may be disposed of in a year , their tax bases and the cost of improvements made to the properties , along with other tests which enable a reit to avoid punitive taxation on the sale of assets . if we are unable to sell properties on favorable terms , our income growth would be limited and our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units could be adversely affected . we utilize a portion of the net sales proceeds from property sales , borrowings under our unsecured credit facility and proceeds from the issuance , when and as warranted , of additional debt and equity securities to refinance debt and finance future acquisitions and developments . access to external capital on favorable terms plays a key role in our financial condition and results of operations , as it impacts our cost of capital and our ability and cost to refinance existing indebtedness as it matures and our ability to fund acquisitions and developments . our ability to access external capital on favorable terms is dependent on various factors , including general market conditions , interest rates , credit ratings on our debt , the market 's perception of our growth potential , our current and potential future earnings and cash distributions and the market price of the company 's common stock . if we were unable to access external capital on favorable terms , our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units could be adversely affected . summary of significant transactions during 2018 during 2018 , we completed the following significant transactions and financing activities : we acquired 10 industrial properties comprised of approximately 1.0 million square feet of gla located in our seattle , orlando , southern california , new jersey and houston markets for an aggregate purchase price of $ 124.9 million . we acquired 271.7 acres of land for development located in our dallas , denver , seattle , southern california , new jersey and miami markets for an aggregate purchase price of $ 42.6 million . we developed , placed in-service and leased at 100 % , 8 industrial properties comprising approximately 3.5 million square feet of gla located in southern california , chicago and phoenix at an estimated total cost of $ 226.6 million . we sold 53 industrial properties comprised of approximately 2.6 million square feet of gla and several land parcels for total gross sales proceeds of $ 192.0 million . we entered into the joint venture with a third party and acquired , for a purchase price of $ 49.0 million , approximately 532 net developable acres of land located in phoenix for the purpose of developing , selling , leasing and operating industrial properties . we issued $ 150.0 million of ten-year private placement notes at a rate of 3.86 % and $ 150.0 million of twelve-year private placement notes at a rate of 3.96 % . we issued 4,800,000 shares of the company 's common stock in an underwritten public offering . proceeds to the company , net of the underwriter 's discount , were $ 145.6 million . we paid off $ 157.8 million in mortgage loans payable . story_separator_special_tag as a result of this adoption , our acquisitions of real estate during the year ended december 31 , 2017 did not meet the definition of a business combination and thus the closing costs , which historically have been expensed , were capitalized as part of the basis of the real estate assets acquired . for the year ended december 31 , 2016 , we recognized $ 0.5 million of expenses related to costs associated with acquiring industrial properties from third parties . 33 replace_table_token_18_th depreciation and other amortization from same store properties decreased by $ 1.4 million due to accelerated depreciation and amortization taken during the year ended december 31 , 2016 attributable to certain tenants who terminated their leases early . depreciation and other amortization from acquired properties increased $ 3.5 million due to properties acquired subsequent to december 31 , 2015. depreciation and other amortization from sold properties decreased $ 5.0 million due to properties sold subsequent to december 31 , 2015. depreciation and other amortization from ( re ) developments increased $ 1.8 million primarily due to an increase in depreciation and amortization related to completed developments offset by accelerated depreciation on one property in rancho dominguez , ca which was razed during the year ended december 31 , 2016. depreciation from corporate furniture , fixtures and equipment and other increased $ 0.2 million due to higher depreciation related to incurred leasing costs at three properties acquired in the year ended december 31 , 2015 that were placed in service during the year ended december 31 , 2016. for the year ended december 31 , 2017 , we recognized $ 131.3 million of gain on sale of real estate related to the sale of 60 industrial properties comprising approximately 4.6 million square feet of gla and one land parcel . for the year ended december 31 , 2016 , we recognized $ 68.2 million of gain on sale of real estate related to the sale of 63 industrial properties comprising approximately 3.9 million square feet of gla and several land parcels . interest expense decreased $ 2.2 million , or 3.8 % , primarily due to a decrease in the weighted average interest rate for the year ended december 31 , 2017 ( 4.42 % ) as compared to the year ended december 31 , 2016 ( 4.50 % ) , a decrease in the weighted average debt balance outstanding for the year ended december 31 , 2017 ( $ 1,392.2 million ) as compared to the year ended december 31 , 2016 ( $ 1,400.5 million ) and an increase in capitalized interest of $ 0.8 million for the year ended december 31 , 2017 as compared to the year ended december 31 , 2016 due to an increase in development activities . amortization of debt issuance costs remained relatively unchanged . during the year ended december 31 , 2017 , we recorded $ 1.9 million of settlement gain on derivative instruments . in september 2017 , we entered into the 2017 treasury locks in order to fix the interest rate on an anticipated unsecured debt offering . the 2017 treasury locks were settled during the fourth quarter of 2017. for the year ended december 31 , 2017 , we recognized a loss from retirement of debt of $ 1.8 million due to prepayment penalties related to the early payoff of certain mortgage loans and the write-off of unamortized debt issuance costs on these mortgage loans as well as the write-off of unamortized debt issuance costs related to an exiting lender on our revolving line of credit and one of our unsecured term loans . the income tax provision remained relatively unchanged . 34 critical accounting policies we believe the following critical accounting policies relate to the more significant judgments and estimates used in the preparation of our consolidated financial statements . refer to note 2 to the consolidated financial statements for further detail on our critical accounting policies , which are as follows : acquisitions of real estate assets : we allocate the purchase price of acquired real estate , including real estate acquired as a portfolio , to the fair value of tangible assets ( land , building , and improvements ) by valuing the real estate as if it were vacant . the determination of fair value includes estimates such as discount rates , terminal capitalization rates and market rent assumptions . above-market and below-market lease and below market ground lease obligation values are recorded based on the present value ( using a discount rate which reflects the risks associated with the leases acquired ) of the difference between ( i ) the contractual amounts to be paid pursuant to each in-place lease and ( ii ) our estimate of fair market lease rents for each corresponding in-place lease . the purchase price is further allocated to leasing commissions , in-place lease and tenant relationship values based on our evaluation of the specific characteristics of each tenant 's lease and our overall relationship with the respective tenant . the value allocated to tenant relationships is amortized to depreciation and amortization expense over the expected term of the relationship , which includes an estimate of the probability of lease renewal and its estimated term . impairment of real estate assets : we review our real estate assets for possible impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable . the judgments regarding the existence of indicators of impairment are based on the operating performance , market conditions , as well as our ability to hold and our intent with regard to each property . the judgments regarding whether the carrying amounts of these assets may not be recoverable are based on estimates of future undiscounted cash flows from properties which include estimates of future operating performance and market conditions . if any real estate investment is considered impaired , a loss is recorded to reduce the

cash flow activity the following table summarizes our cash flow activity for the company for the years ended december 31 , 2018 and 2017 : replace_table_token_19_th the following table summarizes our cash flow activity for the operating partnership for the years ended december 31 , 2018 and 2017 : replace_table_token_20_th changes in cash flow for the year ended december 31 , 2018 , compared to the prior year are described as follows : operating activities : cash provided by operating activities increased $ 17.9 million for the company ( increased by $ 17.6 million for the operating partnership ) , primarily due to the following : decrease in interest expense of $ 6.4 million ; increase in cash noi from same store properties , acquired properties , and recently developed properties offset by decreases in cash noi due to building disposals for a net total increase of approximately $ 6.8 million ; increase in accounts payable , accrued expenses and other liabilities as well as a decrease in other assets due to timing of cash payments and cash receipts . investing activities : cash used in investing activities increased $ 140.9 million , primarily due to the following : increase in cash used of $ 78.5 million related to non-acquisition additions and improvements to real estate primarily due to an increase in development expenditures in 2018 ; increase in cash used of $ 23.4 million related to our net contributions to the joint venture in 2018 ; decrease in cash received of $ 43.3 million related to the disposition of real estate in 2018 ; decrease in cash received of $ 9.2 million related to insurance proceeds on casualty losses ; offset by : decrease in cash used to acquire real estate in 2018 of $ 17.5 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.
     ```cash flow activity the following table summarizes our cash flow activity for the company for the years ended december 31 , 2018 and 2017 : replace_table_token_19_th the following table summarizes our cash flow activity for the operating partnership for the years ended december 31 , 2018 and 2017 : replace_table_token_20_th changes in cash flow for the year ended december 31 , 2018 , compared to the prior year are described as follows : operating activities : cash provided by operating activities increased $ 17.9 million for the company ( increased by $ 17.6 million for the operating partnership ) , primarily due to the following : decrease in interest expense of $ 6.4 million ; increase in cash noi from same store properties , acquired properties , and recently developed properties offset by decreases in cash noi due to building disposals for a net total increase of approximately $ 6.8 million ; increase in accounts payable , accrued expenses and other liabilities as well as a decrease in other assets due to timing of cash payments and cash receipts . investing activities : cash used in investing activities increased $ 140.9 million , primarily due to the following : increase in cash used of $ 78.5 million related to non-acquisition additions and improvements to real estate primarily due to an increase in development expenditures in 2018 ; increase in cash used of $ 23.4 million related to our net contributions to the joint venture in 2018 ; decrease in cash received of $ 43.3 million related to the disposition of real estate in 2018 ; decrease in cash received of $ 9.2 million related to insurance proceeds on casualty losses ; offset by : decrease in cash used to acquire real estate in 2018 of $ 17.5 million .
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 Suspicious Activity Report : the acquisition and development of properties also entails various risks , including the risk that our investments may not perform as expected . for example , acquired existing and acquired and developed new properties may not sustain and or achieve anticipated occupancy and rental rate levels . with respect to acquired and developed new properties , we may not be able to complete construction on schedule or within budget , resulting in increased debt service expense and construction costs and delays in leasing the properties . also , we face significant competition for attractive acquisition and development opportunities from other well-capitalized real estate investors , including publicly-traded reits and private investors . further , as discussed below , we may not be able to finance the acquisition and development opportunities we identify . if we were unable to acquire and develop sufficient additional properties on favorable terms , or if such investments did not perform as expected , our revenue growth would be limited and our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units would be adversely affected . 27 we also generate income from the sale of our properties ( including existing buildings , buildings which we have developed or re-developed on a merchant basis and land ) . the gain or loss on , and fees from , the sale of such properties are included in our income and can be a significant source of funds , in addition to revenues generated from rental income and tenant recoveries . proceeds from sales are used to repay outstanding debt and , market conditions permitting , may be used to fund the acquisition of existing industrial properties , and the acquisition and development of new industrial properties . the sale of properties is impacted , variously , by property specific , market specific , general economic and other conditions , many of which are beyond our control . the sale of properties also entails various risks , including competition from other sellers and the availability of attractive financing for potential buyers of our properties . further , our ability to sell properties is limited by safe harbor rules applying to reits under the code which relate to the number of properties that may be disposed of in a year , their tax bases and the cost of improvements made to the properties , along with other tests which enable a reit to avoid punitive taxation on the sale of assets . if we are unable to sell properties on favorable terms , our income growth would be limited and our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units could be adversely affected . we utilize a portion of the net sales proceeds from property sales , borrowings under our unsecured credit facility and proceeds from the issuance , when and as warranted , of additional debt and equity securities to refinance debt and finance future acquisitions and developments . access to external capital on favorable terms plays a key role in our financial condition and results of operations , as it impacts our cost of capital and our ability and cost to refinance existing indebtedness as it matures and our ability to fund acquisitions and developments . our ability to access external capital on favorable terms is dependent on various factors , including general market conditions , interest rates , credit ratings on our debt , the market 's perception of our growth potential , our current and potential future earnings and cash distributions and the market price of the company 's common stock . if we were unable to access external capital on favorable terms , our financial condition , results of operations , cash flow and ability to make distributions to our stockholders and unitholders , the market price of the company 's common stock and the market value of the units could be adversely affected . summary of significant transactions during 2018 during 2018 , we completed the following significant transactions and financing activities : we acquired 10 industrial properties comprised of approximately 1.0 million square feet of gla located in our seattle , orlando , southern california , new jersey and houston markets for an aggregate purchase price of $ 124.9 million . we acquired 271.7 acres of land for development located in our dallas , denver , seattle , southern california , new jersey and miami markets for an aggregate purchase price of $ 42.6 million . we developed , placed in-service and leased at 100 % , 8 industrial properties comprising approximately 3.5 million square feet of gla located in southern california , chicago and phoenix at an estimated total cost of $ 226.6 million . we sold 53 industrial properties comprised of approximately 2.6 million square feet of gla and several land parcels for total gross sales proceeds of $ 192.0 million . we entered into the joint venture with a third party and acquired , for a purchase price of $ 49.0 million , approximately 532 net developable acres of land located in phoenix for the purpose of developing , selling , leasing and operating industrial properties . we issued $ 150.0 million of ten-year private placement notes at a rate of 3.86 % and $ 150.0 million of twelve-year private placement notes at a rate of 3.96 % . we issued 4,800,000 shares of the company 's common stock in an underwritten public offering . proceeds to the company , net of the underwriter 's discount , were $ 145.6 million . we paid off $ 157.8 million in mortgage loans payable . story_separator_special_tag as a result of this adoption , our acquisitions of real estate during the year ended december 31 , 2017 did not meet the definition of a business combination and thus the closing costs , which historically have been expensed , were capitalized as part of the basis of the real estate assets acquired . for the year ended december 31 , 2016 , we recognized $ 0.5 million of expenses related to costs associated with acquiring industrial properties from third parties . 33 replace_table_token_18_th depreciation and other amortization from same store properties decreased by $ 1.4 million due to accelerated depreciation and amortization taken during the year ended december 31 , 2016 attributable to certain tenants who terminated their leases early . depreciation and other amortization from acquired properties increased $ 3.5 million due to properties acquired subsequent to december 31 , 2015. depreciation and other amortization from sold properties decreased $ 5.0 million due to properties sold subsequent to december 31 , 2015. depreciation and other amortization from ( re ) developments increased $ 1.8 million primarily due to an increase in depreciation and amortization related to completed developments offset by accelerated depreciation on one property in rancho dominguez , ca which was razed during the year ended december 31 , 2016. depreciation from corporate furniture , fixtures and equipment and other increased $ 0.2 million due to higher depreciation related to incurred leasing costs at three properties acquired in the year ended december 31 , 2015 that were placed in service during the year ended december 31 , 2016. for the year ended december 31 , 2017 , we recognized $ 131.3 million of gain on sale of real estate related to the sale of 60 industrial properties comprising approximately 4.6 million square feet of gla and one land parcel . for the year ended december 31 , 2016 , we recognized $ 68.2 million of gain on sale of real estate related to the sale of 63 industrial properties comprising approximately 3.9 million square feet of gla and several land parcels . interest expense decreased $ 2.2 million , or 3.8 % , primarily due to a decrease in the weighted average interest rate for the year ended december 31 , 2017 ( 4.42 % ) as compared to the year ended december 31 , 2016 ( 4.50 % ) , a decrease in the weighted average debt balance outstanding for the year ended december 31 , 2017 ( $ 1,392.2 million ) as compared to the year ended december 31 , 2016 ( $ 1,400.5 million ) and an increase in capitalized interest of $ 0.8 million for the year ended december 31 , 2017 as compared to the year ended december 31 , 2016 due to an increase in development activities . amortization of debt issuance costs remained relatively unchanged . during the year ended december 31 , 2017 , we recorded $ 1.9 million of settlement gain on derivative instruments . in september 2017 , we entered into the 2017 treasury locks in order to fix the interest rate on an anticipated unsecured debt offering . the 2017 treasury locks were settled during the fourth quarter of 2017. for the year ended december 31 , 2017 , we recognized a loss from retirement of debt of $ 1.8 million due to prepayment penalties related to the early payoff of certain mortgage loans and the write-off of unamortized debt issuance costs on these mortgage loans as well as the write-off of unamortized debt issuance costs related to an exiting lender on our revolving line of credit and one of our unsecured term loans . the income tax provision remained relatively unchanged . 34 critical accounting policies we believe the following critical accounting policies relate to the more significant judgments and estimates used in the preparation of our consolidated financial statements . refer to note 2 to the consolidated financial statements for further detail on our critical accounting policies , which are as follows : acquisitions of real estate assets : we allocate the purchase price of acquired real estate , including real estate acquired as a portfolio , to the fair value of tangible assets ( land , building , and improvements ) by valuing the real estate as if it were vacant . the determination of fair value includes estimates such as discount rates , terminal capitalization rates and market rent assumptions . above-market and below-market lease and below market ground lease obligation values are recorded based on the present value ( using a discount rate which reflects the risks associated with the leases acquired ) of the difference between ( i ) the contractual amounts to be paid pursuant to each in-place lease and ( ii ) our estimate of fair market lease rents for each corresponding in-place lease . the purchase price is further allocated to leasing commissions , in-place lease and tenant relationship values based on our evaluation of the specific characteristics of each tenant 's lease and our overall relationship with the respective tenant . the value allocated to tenant relationships is amortized to depreciation and amortization expense over the expected term of the relationship , which includes an estimate of the probability of lease renewal and its estimated term . impairment of real estate assets : we review our real estate assets for possible impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable . the judgments regarding the existence of indicators of impairment are based on the operating performance , market conditions , as well as our ability to hold and our intent with regard to each property . the judgments regarding whether the carrying amounts of these assets may not be recoverable are based on estimates of future undiscounted cash flows from properties which include estimates of future operating performance and market conditions . if any real estate investment is considered impaired , a loss is recorded to reduce the

