we provide management , leasing and real estate development services through preit services , llc ( “ preit services ” ) , which generally develops and manages properties that we consolidate for financial reporting purposes , and preit-rubin , inc. ( “ pri ” ) , which generally develops and manages properties that we do not consolidate for financial reporting purposes , including properties owned by partnerships in which we own an interest , and properties that are owned by third parties in which we do not have an interest . pri is a taxable reit subsidiary , as defined by federal tax laws , which means that it is able to offer additional services to tenants without jeopardizing our continuing qualification as a reit under federal tax law . our revenue consists primarily of fixed rental income , additional rent in the form of expense reimbursements , and percentage rent ( rent that is based on a percentage of our tenants ' sales or a percentage of sales in excess of thresholds that are specified in the leases ) derived from our income producing properties . we also receive income from our real estate partnership investments and from the management and leasing services pri provides . the covid-19 global pandemic that began in 2020 has adversely impacted and continues to impact our business , financial condition , liquidity and operating results , as well as our tenants ' businesses . the prolonged and increased spread of covid-19 has also led to unprecedented global economic disruption and volatility in financial markets . some of our tenants ' financial health and business viability have been adversely impacted and their creditworthiness has deteriorated . we anticipate that our future business , financial condition , liquidity and results of operations , including in 2021 and potentially in future periods , will continue to be materially impacted by the covid-19 pandemic . it remains highly uncertain how long the global pandemic , economic challenges and restrictions on day-to-day life and business operations will last based on the emergence of new strains of the virus and the current virus spread rate in the united states , which have resulted in a number of jurisdictions that previously relaxed restrictions implementing new or renewed restrictions . given these factors , so long as the lingering effects of covid-19 remain , the virus may continue to impact us or our tenants , or our ability or the ability of our tenants to resume more normal operations . covid-19 closures of our properties began on march 12 , 2020 and continued through the reopening of our last property on july 3 , 2020. these closures impacted most of our properties for the full second quarter of 2020 with traffic and tenant reopenings increasing through the third and fourth quarters of 2020. new or renewed restrictions in the jurisdictions where our properties are located may be implemented in response to evolving conditions and overall uncertainty about the timing of widespread availability of vaccines . as such , as the pandemic continues , intensifies or experiences resurgences , it is possible that additional closures will occur . during the mall closure period in the second quarter of 2020 , the company furloughed a significant portion of its property and corporate employee base and later made permanent headcount reductions , which contributed to decreased general and administrative expenses in the third and fourth quarters of 2020 . 43 all of our properties have remained open since the third quarter of 2020 and are employing safety and sanitation measures designed to address the risks posed by covid-19 , with some of our tenants still operating at reduced capacity . following the pandemic-related closures , approximately 4 % of our tenants failed to re-open ( inclusive of tenants that filed for bankruptcy protection in the aftermath ) . as a result of the challenging environment created by covid-19 , primarily beginning in the second quarter of 2020 , many of our tenants have sought rent relief and deferral and several have failed to pay rent due . although we continue to make progress in collecting covid-19-period rents , we have also initiated legal proceedings against certain tenants for failure to pay . as of december 31 , 2020 , we had cash receipts of 80 % of billed second , third and fourth quarter rents . we believe that our rent collections are probable , but expect that collections will continue to be below our tenants ' rent obligations as long as the effects of covid-19 affect the financial strength of our tenants . the significance of covid-19 on our business , however , will continue to depend on , among other things , the extent and duration of the pandemic , the severity of the disease and the number of people infected with the virus , the timing and widespread availability and acceptance of vaccines , the further effects on the economy of the pandemic and of the measures taken by governmental authorities and other third parties restricting daily activities and the length of time that such measures remain in place or are renewed , and implementation of governmental programs to assist businesses and consumers impacted by the covid-19 pandemic . our net loss increased by $ 253.7 million to a net loss of $ 266.7 million for the year ended december 31 , 2020 from a net loss of $ 13.0 million for the year ended december 31 , 2019. the change in our 2020 results of operations was primarily due to ( a ) a loss on remeasurement of fdp 's assets and an other than temporary impairment on our investment in fdp totaling $ 148.5 million ; ( b ) a decrease in real estate revenue of $ 74.0 million due to the covid-19 related closure of our properties for the majority of the second quarter , as well as rent concession requests from tenants for rent abatements ; ( story_separator_special_tag when collectability of lease revenue is not probable , leases are prospectively accounted for on a cash basis and any difference between the revenue that has been accrued and the cash collected from the tenant over the life of the lease is recognized as a current period adjustment to lease revenue . we review the collectability of our tenant receivables related to tenant rent including base rent , straight-line rent , expense reimbursements and other revenue or income by specifically analyzing billed and unbilled revenues , including straight-line rent receivable , and considering historical collection issues , tenant creditworthiness and current economic and industry trends . our revenue recognition and receivables collectability analysis places particular emphasis on past-due accounts and considers the nature and age of the receivables , the payment history and financial condition of the payor , the basis for any disputes or negotiations with the payor , and other information that could affect collectability . we record base rent on a straight-line basis , which means that the monthly base rent revenue according to the terms of our leases with our tenants is adjusted so that an average monthly rent is recorded for each tenant over the term of its lease . when tenants vacate prior to the end of their lease , we accelerate amortization of any related unamortized straight-line rent balances , and unamortized above-market and below-market intangible balances are amortized as a decrease or increase to real estate revenue , respectively . percentage rent represents rental revenue that the tenant pays based on a percentage of its sales , either as a percentage of its total sales or as a percentage of sales over a certain threshold . in the latter case , we do not record percentage rent until the sales threshold has been reached . revenue for rent received from tenants prior to their due dates is deferred until the period to which the rent applies . in addition to base rent , certain lease agreements contain provisions that require tenants to reimburse a fixed or pro rata share of certain cam costs , real estate taxes and utilities . tenants generally make monthly expense reimbursement payments based on a budgeted amount determined at the beginning of the year . effective january 1 , 2019 , we recognize fixed cam revenue prospectively on a straight-line basis . certain lease agreements contain co-tenancy clauses that can change the amount of rent or the type of rent that tenants are required to pay , or , in some cases , can allow the tenant to terminate their lease , in the event that certain events take place , such as a decline in property occupancy levels below certain defined levels or the vacating of an anchor store . co-tenancy clauses do not generally have any retroactive effect when they are triggered . the effect of co-tenancy clauses is applied on a prospective basis to recognize the new rent that is in effect . payments made to tenants as inducements to enter into a lease are treated as deferred costs that are amortized as a reduction of rental revenue over the term of the related lease . lease termination fee revenue is recognized in the period when a termination agreement is signed , collectability is assured , and the tenant has vacated the space . in the event that a tenant is in bankruptcy when the termination agreement is signed , termination fee income is deferred and recognized when it is received . we also generate revenue by providing management services to third parties , including property management , brokerage , leasing and development . management fees generally are a percentage of managed property revenue or cash receipts . leasing fees are earned upon the consummation of new leases . development fees are earned over the time period of the development activity and are recognized on the percentage of completion method . these activities are collectively included in “ other income ” in the consolidated statements of operations . 47 revenue from the reimbursement of marketing expenses is generated through tenant leases that require tenants to reimburse a defined amount of property marketing expenses . our contractual performance obligations are fulfilled as marketing expenditures are made . tenant payments are received monthly as required by the respective lease terms . we defer income recognition if the reimbursements exceed the aggregate marketing expenditures made through that date . deferred marketing reimbursement revenue is recorded in tenants ' deposits and deferred rent on the consolidated balance sheet . the marketing reimbursements are recognized as revenue at the time that the marketing expenditures occur . property management revenue from management and development activities is generated through contracts with third party owners of real estate properties or with certain of our joint ventures , and is recorded in other income in the consolidated statements of operations . in the case of management fees , our performance obligations are fulfilled over time as the management services are performed and the associated revenues are recognized on a monthly basis when the customer is billed . in the case of development fees , our performance obligations are fulfilled over time as we perform certain stipulated development activities as set forth in the respective development agreements and the associated revenues are recognized on a monthly basis when the customer is billed . derivatives in the normal course of business , we are exposed to financial market risks , including interest rate risk on our interest-bearing liabilities . we attempt to limit these risks by following established risk management policies , procedures and strategies , including the use of derivative financial instruments . we do not use derivative financial instruments for trading or speculative purposes . currently , we use interest rate swaps to manage our interest rate risk . the valuation of these instruments is determined using widely accepted valuation techniques , including discounted cash flow analysis on the expected cash flows of

cash flows net cash provided by operating activities totaled $ 6.3 million for 2020 , compared to $ 111.4 million for 2019. the decrease in net cash provided by operating activities in 2020 was primarily due to our decrease in revenue due to mall closures as a result of the covid-19 pandemic along with associated rent abatements and an increase in tenant bankruptcies in 2020. also , we had higher general and administrative expense along with increased interest expense in 2020 as a result of our financial restructuring contributed to the decrease . cash flows used in investing activities were $ 77.7 million for 2020 , compared to $ 131.4 million for 2019. investing activities in 2020 included investment in construction in progress of $ 22.8 million , investments in partnerships of $ 35.3 million ( primarily at fashion district philadelphia ) and real estate improvements of $ 37.8 million ( primarily related to capital improvements at our properties , including tenant allowances ) , partially offset by $ 22.5 million of proceeds from land and outparcel sales . investing activities in 2019 included investment in construction in progress of $ 113.8 million , investments in partnerships of $ 72.9 million ( primarily at fashion district philadelphia ) and real estate improvements of $ 34.3 million ( primarily related to capital improvements at our properties , including tenant allowances ) , partially offset by $ 50.4 million of proceeds from land and outparcel sales , and $ 25.0 million of distributions from the fdp term loan . cash flows provided by financing activities were $ 103.1 million for 2020 , compared to $ 7.1 million for 2019. cash flows provided by financing activities for 2020 included payments of aggregate dividends and distributions of $ 32.3 million , principal installments on mortgage loans of $ 16.1 million and deferred financing costs of $ 14.1 million , offset by $ 162.4 million of net new borrowings under our revolving facility and term loans .


 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 flows net cash provided by operating activities totaled $ 6.3 million for 2020 , compared to $ 111.4 million for 2019. the decrease in net cash provided by operating activities in 2020 was primarily due to our decrease in revenue due to mall closures as a result of the covid-19 pandemic along with associated rent abatements and an increase in tenant bankruptcies in 2020. also , we had higher general and administrative expense along with increased interest expense in 2020 as a result of our financial restructuring contributed to the decrease . cash flows used in investing activities were $ 77.7 million for 2020 , compared to $ 131.4 million for 2019. investing activities in 2020 included investment in construction in progress of $ 22.8 million , investments in partnerships of $ 35.3 million ( primarily at fashion district philadelphia ) and real estate improvements of $ 37.8 million ( primarily related to capital improvements at our properties , including tenant allowances ) , partially offset by $ 22.5 million of proceeds from land and outparcel sales . investing activities in 2019 included investment in construction in progress of $ 113.8 million , investments in partnerships of $ 72.9 million ( primarily at fashion district philadelphia ) and real estate improvements of $ 34.3 million ( primarily related to capital improvements at our properties , including tenant allowances ) , partially offset by $ 50.4 million of proceeds from land and outparcel sales , and $ 25.0 million of distributions from the fdp term loan . cash flows provided by financing activities were $ 103.1 million for 2020 , compared to $ 7.1 million for 2019. cash flows provided by financing activities for 2020 included payments of aggregate dividends and distributions of $ 32.3 million , principal installments on mortgage loans of $ 16.1 million and deferred financing costs of $ 14.1 million , offset by $ 162.4 million of net new borrowings under our revolving facility and term loans .
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 Suspicious Activity Report : we provide management , leasing and real estate development services through preit services , llc ( “ preit services ” ) , which generally develops and manages properties that we consolidate for financial reporting purposes , and preit-rubin , inc. ( “ pri ” ) , which generally develops and manages properties that we do not consolidate for financial reporting purposes , including properties owned by partnerships in which we own an interest , and properties that are owned by third parties in which we do not have an interest . pri is a taxable reit subsidiary , as defined by federal tax laws , which means that it is able to offer additional services to tenants without jeopardizing our continuing qualification as a reit under federal tax law . our revenue consists primarily of fixed rental income , additional rent in the form of expense reimbursements , and percentage rent ( rent that is based on a percentage of our tenants ' sales or a percentage of sales in excess of thresholds that are specified in the leases ) derived from our income producing properties . we also receive income from our real estate partnership investments and from the management and leasing services pri provides . the covid-19 global pandemic that began in 2020 has adversely impacted and continues to impact our business , financial condition , liquidity and operating results , as well as our tenants ' businesses . the prolonged and increased spread of covid-19 has also led to unprecedented global economic disruption and volatility in financial markets . some of our tenants ' financial health and business viability have been adversely impacted and their creditworthiness has deteriorated . we anticipate that our future business , financial condition , liquidity and results of operations , including in 2021 and potentially in future periods , will continue to be materially impacted by the covid-19 pandemic . it remains highly uncertain how long the global pandemic , economic challenges and restrictions on day-to-day life and business operations will last based on the emergence of new strains of the virus and the current virus spread rate in the united states , which have resulted in a number of jurisdictions that previously relaxed restrictions implementing new or renewed restrictions . given these factors , so long as the lingering effects of covid-19 remain , the virus may continue to impact us or our tenants , or our ability or the ability of our tenants to resume more normal operations . covid-19 closures of our properties began on march 12 , 2020 and continued through the reopening of our last property on july 3 , 2020. these closures impacted most of our properties for the full second quarter of 2020 with traffic and tenant reopenings increasing through the third and fourth quarters of 2020. new or renewed restrictions in the jurisdictions where our properties are located may be implemented in response to evolving conditions and overall uncertainty about the timing of widespread availability of vaccines . as such , as the pandemic continues , intensifies or experiences resurgences , it is possible that additional closures will occur . during the mall closure period in the second quarter of 2020 , the company furloughed a significant portion of its property and corporate employee base and later made permanent headcount reductions , which contributed to decreased general and administrative expenses in the third and fourth quarters of 2020 . 43 all of our properties have remained open since the third quarter of 2020 and are employing safety and sanitation measures designed to address the risks posed by covid-19 , with some of our tenants still operating at reduced capacity . following the pandemic-related closures , approximately 4 % of our tenants failed to re-open ( inclusive of tenants that filed for bankruptcy protection in the aftermath ) . as a result of the challenging environment created by covid-19 , primarily beginning in the second quarter of 2020 , many of our tenants have sought rent relief and deferral and several have failed to pay rent due . although we continue to make progress in collecting covid-19-period rents , we have also initiated legal proceedings against certain tenants for failure to pay . as of december 31 , 2020 , we had cash receipts of 80 % of billed second , third and fourth quarter rents . we believe that our rent collections are probable , but expect that collections will continue to be below our tenants ' rent obligations as long as the effects of covid-19 affect the financial strength of our tenants . the significance of covid-19 on our business , however , will continue to depend on , among other things , the extent and duration of the pandemic , the severity of the disease and the number of people infected with the virus , the timing and widespread availability and acceptance of vaccines , the further effects on the economy of the pandemic and of the measures taken by governmental authorities and other third parties restricting daily activities and the length of time that such measures remain in place or are renewed , and implementation of governmental programs to assist businesses and consumers impacted by the covid-19 pandemic . our net loss increased by $ 253.7 million to a net loss of $ 266.7 million for the year ended december 31 , 2020 from a net loss of $ 13.0 million for the year ended december 31 , 2019. the change in our 2020 results of operations was primarily due to ( a ) a loss on remeasurement of fdp 's assets and an other than temporary impairment on our investment in fdp totaling $ 148.5 million ; ( b ) a decrease in real estate revenue of $ 74.0 million due to the covid-19 related closure of our properties for the majority of the second quarter , as well as rent concession requests from tenants for rent abatements ; ( story_separator_special_tag when collectability of lease revenue is not probable , leases are prospectively accounted for on a cash basis and any difference between the revenue that has been accrued and the cash collected from the tenant over the life of the lease is recognized as a current period adjustment to lease revenue . we review the collectability of our tenant receivables related to tenant rent including base rent , straight-line rent , expense reimbursements and other revenue or income by specifically analyzing billed and unbilled revenues , including straight-line rent receivable , and considering historical collection issues , tenant creditworthiness and current economic and industry trends . our revenue recognition and receivables collectability analysis places particular emphasis on past-due accounts and considers the nature and age of the receivables , the payment history and financial condition of the payor , the basis for any disputes or negotiations with the payor , and other information that could affect collectability . we record base rent on a straight-line basis , which means that the monthly base rent revenue according to the terms of our leases with our tenants is adjusted so that an average monthly rent is recorded for each tenant over the term of its lease . when tenants vacate prior to the end of their lease , we accelerate amortization of any related unamortized straight-line rent balances , and unamortized above-market and below-market intangible balances are amortized as a decrease or increase to real estate revenue , respectively . percentage rent represents rental revenue that the tenant pays based on a percentage of its sales , either as a percentage of its total sales or as a percentage of sales over a certain threshold . in the latter case , we do not record percentage rent until the sales threshold has been reached . revenue for rent received from tenants prior to their due dates is deferred until the period to which the rent applies . in addition to base rent , certain lease agreements contain provisions that require tenants to reimburse a fixed or pro rata share of certain cam costs , real estate taxes and utilities . tenants generally make monthly expense reimbursement payments based on a budgeted amount determined at the beginning of the year . effective january 1 , 2019 , we recognize fixed cam revenue prospectively on a straight-line basis . certain lease agreements contain co-tenancy clauses that can change the amount of rent or the type of rent that tenants are required to pay , or , in some cases , can allow the tenant to terminate their lease , in the event that certain events take place , such as a decline in property occupancy levels below certain defined levels or the vacating of an anchor store . co-tenancy clauses do not generally have any retroactive effect when they are triggered . the effect of co-tenancy clauses is applied on a prospective basis to recognize the new rent that is in effect . payments made to tenants as inducements to enter into a lease are treated as deferred costs that are amortized as a reduction of rental revenue over the term of the related lease . lease termination fee revenue is recognized in the period when a termination agreement is signed , collectability is assured , and the tenant has vacated the space . in the event that a tenant is in bankruptcy when the termination agreement is signed , termination fee income is deferred and recognized when it is received . we also generate revenue by providing management services to third parties , including property management , brokerage , leasing and development . management fees generally are a percentage of managed property revenue or cash receipts . leasing fees are earned upon the consummation of new leases . development fees are earned over the time period of the development activity and are recognized on the percentage of completion method . these activities are collectively included in “ other income ” in the consolidated statements of operations . 47 revenue from the reimbursement of marketing expenses is generated through tenant leases that require tenants to reimburse a defined amount of property marketing expenses . our contractual performance obligations are fulfilled as marketing expenditures are made . tenant payments are received monthly as required by the respective lease terms . we defer income recognition if the reimbursements exceed the aggregate marketing expenditures made through that date . deferred marketing reimbursement revenue is recorded in tenants ' deposits and deferred rent on the consolidated balance sheet . the marketing reimbursements are recognized as revenue at the time that the marketing expenditures occur . property management revenue from management and development activities is generated through contracts with third party owners of real estate properties or with certain of our joint ventures , and is recorded in other income in the consolidated statements of operations . in the case of management fees , our performance obligations are fulfilled over time as the management services are performed and the associated revenues are recognized on a monthly basis when the customer is billed . in the case of development fees , our performance obligations are fulfilled over time as we perform certain stipulated development activities as set forth in the respective development agreements and the associated revenues are recognized on a monthly basis when the customer is billed . derivatives in the normal course of business , we are exposed to financial market risks , including interest rate risk on our interest-bearing liabilities . we attempt to limit these risks by following established risk management policies , procedures and strategies , including the use of derivative financial instruments . we do not use derivative financial instruments for trading or speculative purposes . currently , we use interest rate swaps to manage our interest rate risk . the valuation of these instruments is determined using widely accepted valuation techniques , including discounted cash flow analysis on the expected cash flows of

