restructuring charges related to this plan were $ 1.5 million ( $ 1.0 million , net of tax ) and $ 2.7 million ( $ 1.8 million , net of tax ) for the years ended august 31 , 2014 and 2013. the restructuring plan was completed prior to the formation of gbw . the greenbrier companies 2014 annual report 29 results of operations revenue , margin and operating profit , presented below , include amounts from external parties and exclude intersegment activity that is eliminated in consolidation . performance for our segments is evaluated based on operating profit . corporate includes selling and administrative costs not directly related to goods and services and certain costs that are intertwined among segments due to our integrated business . management does not allocate interest and foreign exchange or income tax expense for either external or internal reporting purposes . overview ( in thousands ) 2014 2013 2012 revenue : manufacturing $ 1,624,916 $ 1,215,734 $ 1,253,964 wheels , repair & parts 495,627 469,222 481,865 leasing & services 83,419 71,462 71,887 2,203,962 1,756,418 1,807,716 margin : manufacturing 250,908 132,845 131,580 wheels , repair & parts 31,689 37,721 48,324 leasing & services 39,623 35,807 34,516 322,220 206,373 214,420 operating profit : manufacturing 202,555 88,822 87,880 wheels , repair & parts 40,597 ( 60,966 ) 31,455 leasing & services 41,055 42,411 31,055 corporate ( 44,687 ) ( 28,616 ) ( 31,602 ) earnings from operations 239,520 41,651 118,788 interest and foreign exchange 18,695 22,158 24,809 earnings before income tax and earnings ( loss ) from unconsolidated affiliates 220,825 19,493 93,979 income tax expense ( 72,401 ) ( 25,060 ) ( 32,393 ) earnings ( loss ) before earnings ( loss ) from unconsolidated affiliates 148,424 ( 5,567 ) 61,586 earnings ( loss ) from unconsolidated affiliates 1,355 186 ( 416 ) net earnings ( loss ) 149,779 ( 5,381 ) 61,170 net earnings attributable to noncontrolling interest ( 37,860 ) ( 5,667 ) ( 2,462 ) net earnings ( loss ) attributable to greenbrier $ 111,919 $ ( 11,048 ) $ 58,708 diluted earnings ( loss ) per common share $ 3.44 $ ( 0.41 ) $ 1.91 the increase in revenue for the year ended august 31 , 2014 was primarily the result of a higher volume of deliveries in the manufacturing segment of our business . the decrease in revenue for the year ended august 31 , 2013 was primarily the result of a lower volume of deliveries in the manufacturing segment of our business . the increase in earnings for the year ended august 31 , 2014 was primarily attributable to an increase in manufacturing gross margin and a non-cash gain on contribution to joint venture of $ 13.6 million , net of tax . in addition , the prior year included a non-cash goodwill impairment charge of $ 71.8 million , net of tax . the decrease in net earnings for the year ended august 31 , 2013 as compared to the year ended august 31 , 2012 was primarily attributable to a non-cash goodwill impairment charge of $ 71.8 million , net of tax and restructuring charges of $ 1.8 million , net of tax . these were partially offset by an increase in gain on disposition of equipment . 30 the greenbrier companies 2014 annual report manufacturing segment manufacturing revenue was $ 1.625 billion , $ 1.216 billion and $ 1.254 billion for the years ended august 31 , 2014 , 2013 and 2012. railcar deliveries , which are the primary source of manufacturing revenue , were 16,200 units in 2014 compared to 11,600 units in 2013 and 15,000 units in 2012. manufacturing revenue increased $ 409.2 million in 2014 compared to 2013 primarily due to a higher volume of deliveries as compared to the prior year . these higher deliveries were a result of improved efficiencies and an increase in capacity in response to higher demand . manufacturing revenue decreased $ 38.2 million in 2013 compared to 2012 primarily due to a lower volume of deliveries as compared to the prior year . these lower deliveries were a result of a change in product mix to more labor intensive railcar types and lower demand for certain of our products . manufacturing margin as a percentage of revenue was 15.4 % in 2014 , 10.9 % in 2013 and 10.5 % in 2012. the increase in 2014 compared to 2013 was primarily the result of a favorable change in product mix and pricing , higher volumes of new railcars syndicated with leases attached and improved production efficiencies and overhead absorption . the increase in 2013 compared to 2012 was primarily the result of a favorable change in product mix and an increase in marine revenue . these factors were partially offset by certain inefficiencies with ramping up tank car production . manufacturing operating profit was $ 202.6 million and 12.5 % of revenue for the year ended august 31 , 2014 , $ 88.8 million and 7.3 % of revenue for the year ended august 31 , 2013 and $ 87.9 million and 7.0 % of revenue for the year ended august 31 , 2012. the increase in operating profit in 2014 and 2013 compared to the prior comparable period was primarily attributed to higher margins . wheels , repair & parts segment the wheels , repair & parts segment included the results of operations for our repair , refurbishment and retrofitting operations ( repair ) through july 18 , 2014. on july 18 , 2014 we and watco , our joint venture partner , contributed our respective repair operations to gbw , an unconsolidated 50/50 joint venture . after july 18 , 2014 , the results of gbw were included as part of earnings ( loss ) from unconsolidated affiliates as we account for our interest in gbw under the equity method of accounting . wheels , repair & parts revenue was $ 495.6 million , $ 469.2 story_separator_special_tag the greenbrier companies 2014 annual report 37 due to uncertainty with respect to the timing of future cash flows associated with our unrecognized tax benefits at august 31 , 2014 , we are unable to estimate the period of cash settlement with the respective taxing authority . therefore , approximately $ 0.2 million in uncertain tax positions have been excluded from the contractual table above . see note 18 to the consolidated financial statements for a discussion on income taxes . off balance sheet arrangements we do not currently have off balance sheet arrangements that have or are likely to have a material current or future effect on our consolidated financial statements . critical accounting policies and estimates the preparation of financial statements in conformity with accounting principles generally accepted in the u.s. requires judgment on the part of management to arrive at estimates and assumptions on matters that are inherently uncertain . these estimates may affect the amount of assets , liabilities , revenue and expenses reported in the financial statements and accompanying notes and disclosure of contingent assets and liabilities within the financial statements . estimates and assumptions are periodically evaluated and may be adjusted in future periods . actual results could differ from those estimates . income taxes - for financial reporting purposes , income tax expense is estimated based on amounts anticipated to be reported on tax return filings . those anticipated amounts may change from when the financial statements are prepared to when the tax returns are filed . further , because tax filings are subject to review by taxing authorities , there is risk that a position taken in preparation of a tax return may be challenged by a taxing authority . if a challenge is successful , differences in tax expense or between current and deferred tax items may arise in future periods . any material effect of such differences would be reflected in the financial statements when management considers the effect probable of occurring and the amount reasonably estimable . valuation allowances reduce deferred tax assets to amounts more likely than not be realized based on information available when the financial statements are prepared . this information may include estimates of future income and other assumptions that are inherently uncertain . maintenance obligations - we are responsible for maintenance on a portion of the managed and owned lease fleet under the terms of maintenance obligations defined in the underlying lease or management agreement . the estimated maintenance liability is based on maintenance histories for each type and age of railcar . these estimates involve judgment as to the future costs of repairs and the types and timing of repairs required over the lease term . as we can not predict with certainty the prices , timing and volume of maintenance needed in the future on railcars under long-term leases , this estimate is uncertain and could be materially different from maintenance requirements . the liability is periodically reviewed and updated based on maintenance trends and known future repair or refurbishment requirements . these adjustments could be material due to the inherent uncertainty in predicting future maintenance requirements . warranty accruals - warranty costs to cover a defined warranty period are estimated and charged to operations . the estimated warranty cost is based on historical warranty claims for each particular product type . for new product types without a warranty history , preliminary estimates are based on historical information for similar product types . these estimates are inherently uncertain as they are based on historical data for existing products and judgment for new products . if warranty claims are made in the current period for issues that have not historically been the subject of warranty claims and were not taken into consideration in establishing the accrual or if claims for issues already considered in establishing the accrual exceed expectations , warranty expense may exceed the accrual for that particular product . conversely , there is the possibility that claims may be lower than estimates . the warranty accrual is periodically reviewed and updated based on warranty trends . however , as we can not predict future claims , the potential exists for the difference in any one reporting period to be material . environmental costs - at times we may be involved in various proceedings related to environmental matters . we estimate future costs for known environmental remediation requirements and accrue for them when it is probable that we have incurred a liability and the related costs can be reasonably estimated based on currently available information . if further developments or resolution of an environmental matter result in facts and circumstances 38 the greenbrier companies 2014 annual report that are significantly different than the assumptions used to develop these reserves , the accrual for environmental remediation could be materially understated or overstated . adjustments to these liabilities are made when additional information becomes available that affects the estimated costs to study or remediate any environmental issues or when expenditures for which reserves are established are made . due to the uncertain nature of estimating potential environmental matters , there can be no assurance that we will not become involved in future litigation or other proceedings or , if we were found to be responsible or liable in any litigation or proceeding , that such costs would not be material to us . revenue recognition - revenue is recognized when persuasive evidence of an arrangement exists , delivery has occurred or services have been rendered , the price is fixed or determinable and collectability is reasonably assured . railcars are generally manufactured , repaired or refurbished and wheels and parts produced under firm orders from third parties . revenue is recognized when these products or services are completed , accepted by an unaffiliated customer and contractual contingencies removed . certain leases are operated under car hire arrangements whereby revenue is earned based on utilization , car hire rates and terms specified in the lease

liquidity and capital resources years ended august 31 , ( in thousands ) 2014 2013 2012 net cash provided by operating activities $ 135,907 $ 104,592 $ 116,056 net cash provided by ( used in ) investing activities ( 30,078 ) 6,159 ( 88,947 ) net cash used in financing activities ( 17,561 ) ( 65,732 ) ( 28,794 ) effect of exchange rate changes ( 787 ) ( 1,155 ) 5,034 net increase in cash and cash equivalents $ 87,481 $ 43,864 $ 3,349 we have been financed through cash generated from operations and borrowings . at august 31 , 2014 cash and cash equivalents was $ 184.9 million , an increase of $ 87.5 million from $ 97.4 million at the prior year end . cash provided by operating activities was $ 135.9 million , $ 104.6 million and $ 116.1 million for the years ended august 31 , 2014 , 2013 and 2012. the increase in 2014 was primarily due to higher earnings , a change in the timing of working capital needs , the timing of sales of leased railcars for syndication as well as billings in excess of costs , which are recorded in deferred revenue , for our marine barges recorded under the percentage of completion method . the decrease in 2013 was primarily due to a change in the timing of working capital needs and the timing of sales of leased railcars for syndication . cash provided by ( used in ) investing activities primarily related to capital expenditures less proceeds from the sale of assets . cash used in investing activities was $ 30.1 million for the year ended august 31 , 2014 compared to cash provided by investing activities of $ 6.2 million for the year ended august 31 , 2013. cash used in investing activities was $ 88.9 million in 2012. capital expenditures totaled $ 70.2 million , $ 60.8 million and $ 117.9 million for the years ended august 31 , 2014 , 2013 and 2012. proceeds from the sale of assets , which primarily related to sales of railcars from our lease fleet within leasing & services , were approximately $ 54.2 million , $ 75.3


 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 years ended august 31 , ( in thousands ) 2014 2013 2012 net cash provided by operating activities $ 135,907 $ 104,592 $ 116,056 net cash provided by ( used in ) investing activities ( 30,078 ) 6,159 ( 88,947 ) net cash used in financing activities ( 17,561 ) ( 65,732 ) ( 28,794 ) effect of exchange rate changes ( 787 ) ( 1,155 ) 5,034 net increase in cash and cash equivalents $ 87,481 $ 43,864 $ 3,349 we have been financed through cash generated from operations and borrowings . at august 31 , 2014 cash and cash equivalents was $ 184.9 million , an increase of $ 87.5 million from $ 97.4 million at the prior year end . cash provided by operating activities was $ 135.9 million , $ 104.6 million and $ 116.1 million for the years ended august 31 , 2014 , 2013 and 2012. the increase in 2014 was primarily due to higher earnings , a change in the timing of working capital needs , the timing of sales of leased railcars for syndication as well as billings in excess of costs , which are recorded in deferred revenue , for our marine barges recorded under the percentage of completion method . the decrease in 2013 was primarily due to a change in the timing of working capital needs and the timing of sales of leased railcars for syndication . cash provided by ( used in ) investing activities primarily related to capital expenditures less proceeds from the sale of assets . cash used in investing activities was $ 30.1 million for the year ended august 31 , 2014 compared to cash provided by investing activities of $ 6.2 million for the year ended august 31 , 2013. cash used in investing activities was $ 88.9 million in 2012. capital expenditures totaled $ 70.2 million , $ 60.8 million and $ 117.9 million for the years ended august 31 , 2014 , 2013 and 2012. proceeds from the sale of assets , which primarily related to sales of railcars from our lease fleet within leasing & services , were approximately $ 54.2 million , $ 75.3
```    
 Suspicious Activity Report : restructuring charges related to this plan were $ 1.5 million ( $ 1.0 million , net of tax ) and $ 2.7 million ( $ 1.8 million , net of tax ) for the years ended august 31 , 2014 and 2013. the restructuring plan was completed prior to the formation of gbw . the greenbrier companies 2014 annual report 29 results of operations revenue , margin and operating profit , presented below , include amounts from external parties and exclude intersegment activity that is eliminated in consolidation . performance for our segments is evaluated based on operating profit . corporate includes selling and administrative costs not directly related to goods and services and certain costs that are intertwined among segments due to our integrated business . management does not allocate interest and foreign exchange or income tax expense for either external or internal reporting purposes . overview ( in thousands ) 2014 2013 2012 revenue : manufacturing $ 1,624,916 $ 1,215,734 $ 1,253,964 wheels , repair & parts 495,627 469,222 481,865 leasing & services 83,419 71,462 71,887 2,203,962 1,756,418 1,807,716 margin : manufacturing 250,908 132,845 131,580 wheels , repair & parts 31,689 37,721 48,324 leasing & services 39,623 35,807 34,516 322,220 206,373 214,420 operating profit : manufacturing 202,555 88,822 87,880 wheels , repair & parts 40,597 ( 60,966 ) 31,455 leasing & services 41,055 42,411 31,055 corporate ( 44,687 ) ( 28,616 ) ( 31,602 ) earnings from operations 239,520 41,651 118,788 interest and foreign exchange 18,695 22,158 24,809 earnings before income tax and earnings ( loss ) from unconsolidated affiliates 220,825 19,493 93,979 income tax expense ( 72,401 ) ( 25,060 ) ( 32,393 ) earnings ( loss ) before earnings ( loss ) from unconsolidated affiliates 148,424 ( 5,567 ) 61,586 earnings ( loss ) from unconsolidated affiliates 1,355 186 ( 416 ) net earnings ( loss ) 149,779 ( 5,381 ) 61,170 net earnings attributable to noncontrolling interest ( 37,860 ) ( 5,667 ) ( 2,462 ) net earnings ( loss ) attributable to greenbrier $ 111,919 $ ( 11,048 ) $ 58,708 diluted earnings ( loss ) per common share $ 3.44 $ ( 0.41 ) $ 1.91 the increase in revenue for the year ended august 31 , 2014 was primarily the result of a higher volume of deliveries in the manufacturing segment of our business . the decrease in revenue for the year ended august 31 , 2013 was primarily the result of a lower volume of deliveries in the manufacturing segment of our business . the increase in earnings for the year ended august 31 , 2014 was primarily attributable to an increase in manufacturing gross margin and a non-cash gain on contribution to joint venture of $ 13.6 million , net of tax . in addition , the prior year included a non-cash goodwill impairment charge of $ 71.8 million , net of tax . the decrease in net earnings for the year ended august 31 , 2013 as compared to the year ended august 31 , 2012 was primarily attributable to a non-cash goodwill impairment charge of $ 71.8 million , net of tax and restructuring charges of $ 1.8 million , net of tax . these were partially offset by an increase in gain on disposition of equipment . 30 the greenbrier companies 2014 annual report manufacturing segment manufacturing revenue was $ 1.625 billion , $ 1.216 billion and $ 1.254 billion for the years ended august 31 , 2014 , 2013 and 2012. railcar deliveries , which are the primary source of manufacturing revenue , were 16,200 units in 2014 compared to 11,600 units in 2013 and 15,000 units in 2012. manufacturing revenue increased $ 409.2 million in 2014 compared to 2013 primarily due to a higher volume of deliveries as compared to the prior year . these higher deliveries were a result of improved efficiencies and an increase in capacity in response to higher demand . manufacturing revenue decreased $ 38.2 million in 2013 compared to 2012 primarily due to a lower volume of deliveries as compared to the prior year . these lower deliveries were a result of a change in product mix to more labor intensive railcar types and lower demand for certain of our products . manufacturing margin as a percentage of revenue was 15.4 % in 2014 , 10.9 % in 2013 and 10.5 % in 2012. the increase in 2014 compared to 2013 was primarily the result of a favorable change in product mix and pricing , higher volumes of new railcars syndicated with leases attached and improved production efficiencies and overhead absorption . the increase in 2013 compared to 2012 was primarily the result of a favorable change in product mix and an increase in marine revenue . these factors were partially offset by certain inefficiencies with ramping up tank car production . manufacturing operating profit was $ 202.6 million and 12.5 % of revenue for the year ended august 31 , 2014 , $ 88.8 million and 7.3 % of revenue for the year ended august 31 , 2013 and $ 87.9 million and 7.0 % of revenue for the year ended august 31 , 2012. the increase in operating profit in 2014 and 2013 compared to the prior comparable period was primarily attributed to higher margins . wheels , repair & parts segment the wheels , repair & parts segment included the results of operations for our repair , refurbishment and retrofitting operations ( repair ) through july 18 , 2014. on july 18 , 2014 we and watco , our joint venture partner , contributed our respective repair operations to gbw , an unconsolidated 50/50 joint venture . after july 18 , 2014 , the results of gbw were included as part of earnings ( loss ) from unconsolidated affiliates as we account for our interest in gbw under the equity method of accounting . wheels , repair & parts revenue was $ 495.6 million , $ 469.2 story_separator_special_tag the greenbrier companies 2014 annual report 37 due to uncertainty with respect to the timing of future cash flows associated with our unrecognized tax benefits at august 31 , 2014 , we are unable to estimate the period of cash settlement with the respective taxing authority . therefore , approximately $ 0.2 million in uncertain tax positions have been excluded from the contractual table above . see note 18 to the consolidated financial statements for a discussion on income taxes . off balance sheet arrangements we do not currently have off balance sheet arrangements that have or are likely to have a material current or future effect on our consolidated financial statements . critical accounting policies and estimates the preparation of financial statements in conformity with accounting principles generally accepted in the u.s. requires judgment on the part of management to arrive at estimates and assumptions on matters that are inherently uncertain . these estimates may affect the amount of assets , liabilities , revenue and expenses reported in the financial statements and accompanying notes and disclosure of contingent assets and liabilities within the financial statements . estimates and assumptions are periodically evaluated and may be adjusted in future periods . actual results could differ from those estimates . income taxes - for financial reporting purposes , income tax expense is estimated based on amounts anticipated to be reported on tax return filings . those anticipated amounts may change from when the financial statements are prepared to when the tax returns are filed . further , because tax filings are subject to review by taxing authorities , there is risk that a position taken in preparation of a tax return may be challenged by a taxing authority . if a challenge is successful , differences in tax expense or between current and deferred tax items may arise in future periods . any material effect of such differences would be reflected in the financial statements when management considers the effect probable of occurring and the amount reasonably estimable . valuation allowances reduce deferred tax assets to amounts more likely than not be realized based on information available when the financial statements are prepared . this information may include estimates of future income and other assumptions that are inherently uncertain . maintenance obligations - we are responsible for maintenance on a portion of the managed and owned lease fleet under the terms of maintenance obligations defined in the underlying lease or management agreement . the estimated maintenance liability is based on maintenance histories for each type and age of railcar . these estimates involve judgment as to the future costs of repairs and the types and timing of repairs required over the lease term . as we can not predict with certainty the prices , timing and volume of maintenance needed in the future on railcars under long-term leases , this estimate is uncertain and could be materially different from maintenance requirements . the liability is periodically reviewed and updated based on maintenance trends and known future repair or refurbishment requirements . these adjustments could be material due to the inherent uncertainty in predicting future maintenance requirements . warranty accruals - warranty costs to cover a defined warranty period are estimated and charged to operations . the estimated warranty cost is based on historical warranty claims for each particular product type . for new product types without a warranty history , preliminary estimates are based on historical information for similar product types . these estimates are inherently uncertain as they are based on historical data for existing products and judgment for new products . if warranty claims are made in the current period for issues that have not historically been the subject of warranty claims and were not taken into consideration in establishing the accrual or if claims for issues already considered in establishing the accrual exceed expectations , warranty expense may exceed the accrual for that particular product . conversely , there is the possibility that claims may be lower than estimates . the warranty accrual is periodically reviewed and updated based on warranty trends . however , as we can not predict future claims , the potential exists for the difference in any one reporting period to be material . environmental costs - at times we may be involved in various proceedings related to environmental matters . we estimate future costs for known environmental remediation requirements and accrue for them when it is probable that we have incurred a liability and the related costs can be reasonably estimated based on currently available information . if further developments or resolution of an environmental matter result in facts and circumstances 38 the greenbrier companies 2014 annual report that are significantly different than the assumptions used to develop these reserves , the accrual for environmental remediation could be materially understated or overstated . adjustments to these liabilities are made when additional information becomes available that affects the estimated costs to study or remediate any environmental issues or when expenditures for which reserves are established are made . due to the uncertain nature of estimating potential environmental matters , there can be no assurance that we will not become involved in future litigation or other proceedings or , if we were found to be responsible or liable in any litigation or proceeding , that such costs would not be material to us . revenue recognition - revenue is recognized when persuasive evidence of an arrangement exists , delivery has occurred or services have been rendered , the price is fixed or determinable and collectability is reasonably assured . railcars are generally manufactured , repaired or refurbished and wheels and parts produced under firm orders from third parties . revenue is recognized when these products or services are completed , accepted by an unaffiliated customer and contractual contingencies removed . certain leases are operated under car hire arrangements whereby revenue is earned based on utilization , car hire rates and terms specified in the lease

