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Production (or lifting costs) are costs incurred in lifting the oil and gas to the surface and generally include gathering, treating, primary processing, field storage, property taxes and insurance on proved properties, but do not include depreciation, depletion, accretion, amortization, royalties, income taxes, interest, general and administrative and other expenses.","units":{"USD/bbl":[{"start":"2011-01-01","end":"2011-12-31","val":71.57,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":84.34,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":84.34,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"start":"2012-01-01","end":"2012-12-31","val":84.34,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-12-31","val":84.34,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":84.34,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":76.66,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":79.93,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":72.58,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":73.77,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12"},{"start":"2013-01-01","end":"2013-12-31","val":73.77,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-12-31","val":73.77,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-12-31","val":73.77,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":73.77,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":63.54,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":61.78,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":55.55,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-12-31","val":48.09,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"start":"2014-01-01","end":"2014-12-31","val":48.09,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":55.1,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2015Q1"}],"USD/item":[{"start":"2011-01-01","end":"2011-12-31","val":71.57,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2011-01-01","end":"2011-12-31","val":71.57,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":83.17,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":78.97,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"}]}},"CapitalizedExploratoryWellCosts":{"label":"Capitalized Exploratory Well Costs","description":"The amount of capitalized exploratory well costs that is pending the determination of proved reserves. 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Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2010-12-31","val":115492000,"accn":"0001104659-11-044959","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2010-12-31","val":115492000,"accn":"0001104659-11-062261","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":115492000,"accn":"0001104659-12-018171","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":115888000,"accn":"0001104659-11-044959","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":115910000,"accn":"0001104659-11-062261","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":115910000,"accn":"0001104659-12-018171","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14"},{"end":"2011-12-31","val":115910000,"accn":"0001104659-12-035864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2012-03-31","val":115910000,"accn":"0001104659-12-035864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":116319000,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":116333000,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":117806000,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1I"},{"end":"2013-06-30","val":117813000,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":117820000,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013Q4I"},{"end":"2014-03-31","val":118605000,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":118553000,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":118652000,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":118657000,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"end":"2014-12-31","val":118657000,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2014Q4I"},{"end":"2015-03-31","val":118663000,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2015Q1I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2010-12-31","val":115492000,"accn":"0001104659-11-044959","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09"},{"end":"2010-12-31","val":115492000,"accn":"0001104659-11-062261","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09"},{"end":"2010-12-31","val":115492000,"accn":"0001104659-12-018171","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14","frame":"CY2010Q4I"},{"end":"2011-06-30","val":115888000,"accn":"0001104659-11-044959","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-09","frame":"CY2011Q2I"},{"end":"2011-09-30","val":115910000,"accn":"0001104659-11-062261","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":115910000,"accn":"0001104659-12-018171","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14"},{"end":"2011-12-31","val":115910000,"accn":"0001104659-12-035864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":115910000,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2012-03-31","val":115910000,"accn":"0001104659-12-035864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1I"},{"end":"2012-06-30","val":116319000,"accn":"0001437749-12-008030","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":116333000,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":116932000,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12","frame":"CY2012Q4I"},{"end":"2013-03-31","val":117806000,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1I"},{"end":"2013-06-30","val":117813000,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":117820000,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":117526000,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013Q4I"},{"end":"2014-03-31","val":118605000,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":118553000,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":118652000,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":118657000,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"end":"2014-12-31","val":118657000,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2014Q4I"},{"end":"2015-03-31","val":118663000,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2015Q1I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' 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An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.","units":{"pure":[{"start":"2010-01-01","end":"2010-12-31","val":1,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"start":"2011-01-01","end":"2011-12-31","val":1,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-09-30","val":1,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":1,"accn":"0001437749-12-011353","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":1,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1,"accn":"0001437749-13-002962","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":1,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12"},{"start":"2012-01-01","end":"2012-12-31","val":1,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":1,"accn":"0001437749-13-005749","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"start":"2013-01-01","end":"2013-03-31","val":1,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":1,"accn":"0001437749-13-010367","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-09-30","val":1,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1,"accn":"0001437749-13-014264","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":1,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1,"accn":"0001437749-14-003934","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-12"},{"start":"2013-01-01","end":"2013-12-31","val":1,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1,"accn":"0001437749-14-008572","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":1,"accn":"0001437749-14-014765","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1,"accn":"0001437749-14-020056","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0001437749-15-005136","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1,"accn":"0001437749-15-009582","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2015Q1"}]}},"OilAndGasJointInterestBillingReceivablesCurrent":{"label":"Oil 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These are billings to the non-operators associated with the operation of wells and are based on those owners' working interests in the wells. 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of Financing Costs","description":"The cash outflow for loan and debt issuance 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