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For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"USD":[{"end":"2011-04-30","val":-2500,"accn":"0001477932-12-000891","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-29"},{"end":"2011-04-30","val":-2500,"accn":"0001477932-12-002560","fy":2012,"fp":"FY","form":"10-K","filed":"2012-07-31","frame":"CY2011Q1I"},{"end":"2012-01-31","val":3900,"accn":"0001477932-12-000891","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-29","frame":"CY2011Q4I"},{"end":"2012-04-30","val":12084,"accn":"0001477932-12-002560","fy":2012,"fp":"FY","form":"10-K","filed":"2012-07-31"},{"end":"2012-04-30","val":12084,"accn":"0001477932-12-003521","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-09-04"},{"end":"2012-04-30","val":12084,"accn":"0001477932-12-004741","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-07"},{"end":"2012-04-30","val":12084,"accn":"0001477932-13-000987","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-04"},{"end":"2012-04-30","val":12084,"accn":"0001477932-13-003611","fy":2013,"fp":"FY","form":"10-K","filed":"2013-08-13","frame":"CY2012Q1I"},{"end":"2012-07-31","val":12084,"accn":"0001477932-12-003521","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-09-04","frame":"CY2012Q2I"},{"end":"2012-10-31","val":29742,"accn":"0001477932-12-004741","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-07","frame":"CY2012Q3I"},{"end":"2013-01-31","val":29742,"accn":"0001477932-13-000987","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-04","frame":"CY2012Q4I"},{"end":"2013-04-30","val":29742,"accn":"0001477932-13-003611","fy":2013,"fp":"FY","form":"10-K","filed":"2013-08-13"},{"end":"2013-04-30","val":29742,"accn":"0001477932-13-004083","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-08-30"},{"end":"2013-04-30","val":29742,"accn":"0001477932-13-005961","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-06"},{"end":"2013-04-30","val":29742,"accn":"0001477932-14-001017","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-03-11"},{"end":"2013-04-30","val":29742,"accn":"0001477932-14-003828","fy":2014,"fp":"FY","form":"10-K","filed":"2014-07-23","frame":"CY2013Q1I"},{"end":"2013-07-31","val":29742,"accn":"0001477932-13-004083","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-08-30","frame":"CY2013Q2I"},{"end":"2013-10-31","val":29742,"accn":"0001477932-13-005961","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-06","frame":"CY2013Q3I"},{"end":"2014-01-31","val":29742,"accn":"0001477932-14-001017","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-04-30","val":29742,"accn":"0001477932-14-003828","fy":2014,"fp":"FY","form":"10-K","filed":"2014-07-23"},{"end":"2014-04-30","val":29742,"accn":"0001477932-14-004902","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-09-04"},{"end":"2014-04-30","val":29742,"accn":"0001477932-14-007050","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-12-15"},{"end":"2014-04-30","val":29742,"accn":"0001477932-15-001258","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-19"},{"end":"2014-04-30","val":29742,"accn":"0001477932-15-004744","fy":2015,"fp":"FY","form":"10-K","filed":"2015-07-29","frame":"CY2014Q1I"},{"end":"2014-07-31","val":29742,"accn":"0001477932-14-004902","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-09-04","frame":"CY2014Q2I"},{"end":"2014-10-31","val":29742,"accn":"0001477932-14-007050","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-12-15","frame":"CY2014Q3I"},{"end":"2015-01-31","val":29742,"accn":"0001477932-15-001258","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-19","frame":"CY2014Q4I"},{"end":"2015-04-30","val":29742,"accn":"0001477932-15-004744","fy":2015,"fp":"FY","form":"10-K","filed":"2015-07-29"},{"end":"2015-04-30","val":29742,"accn":"0001477932-15-005823","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-09-11"},{"end":"2015-04-30","val":29742,"accn":"0001477932-15-007384","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-25"},{"end":"2015-04-30","val":29742,"accn":"0001477932-15-007529","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-12-08"},{"end":"2015-04-30","val":-9033,"accn":"0001477932-16-008964","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-03-08"},{"end":"2015-04-30","val":-9033,"accn":"0001477932-16-011552","fy":2016,"fp":"FY","form":"10-K","filed":"2016-07-29","frame":"CY2015Q1I"},{"end":"2015-07-31","val":29742,"accn":"0001477932-15-005823","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-09-11","frame":"CY2015Q2I"},{"end":"2015-10-31","val":29742,"accn":"0001477932-15-007384","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-25"},{"end":"2015-10-31","val":29742,"accn":"0001477932-15-007529","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-12-08","frame":"CY2015Q3I"},{"end":"2016-01-31","val":-9033,"accn":"0001477932-16-008964","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-03-08","frame":"CY2015Q4I"},{"end":"2016-04-30","val":-9033,"accn":"0001477932-16-011552","fy":2016,"fp":"FY","form":"10-K","filed":"2016-07-29"},{"end":"2016-04-30","val":-9033,"accn":"0001477932-16-012470","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-13"},{"end":"2016-04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aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.","units":{"USD":[{"start":"2016-05-01","end":"2017-04-30","val":105133,"accn":"0001477932-17-003995","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-15","frame":"CY2016"}]}},"AmortizationOfDebtDiscountPremium":{"label":"Amortization of Debt Discount (Premium)","description":"Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.","units":{"USD":[{"start":"2016-05-01","end":"2017-01-31","val":10098,"accn":"0001477932-17-001251","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-05-01","end":"2017-04-30","val":34421,"accn":"0001477932-17-003995","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-15","frame":"CY2016"},{"start":"2017-05-01","end":"2017-07-31","val":65194,"accn":"0001477932-17-004603","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-09-19","frame":"CY2017Q2"},{"start":"2017-05-01","end":"2017-10-31","val":116112,"accn":"0001477932-20-002187","fy":2018,"fp":"Q2","form":"10-Q","filed":"2020-04-27"}]}},"AmortizationOfLeasedAsset":{"label":"Amortization of Leased Asset","description":"The expense charged against earnings for the periodic recognition of capitalized leases. This element may apply to energy companies that lease mineral producing properties and to other enterprises that capitalize property, plant, or equipment obtained through capital leases.","units":{"USD":[{"start":"2016-05-01","end":"2016-07-31","val":25132,"accn":"0001477932-16-012470","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-13","frame":"CY2016Q2"},{"start":"2016-05-01","end":"2016-10-31","val":51799,"accn":"0001477932-16-014177","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-12-20"},{"start":"2016-05-01","end":"2017-01-31","val":78466,"accn":"0001477932-17-001251","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-05-01","end":"2017-04-30","val":78466,"accn":"0001477932-17-003995","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-15","frame":"CY2016"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or 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al":10475,"accn":"0001477932-16-014177","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-12-20"},{"end":"2016-04-30","val":10475,"accn":"0001477932-17-001251","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-03-22"},{"end":"2016-04-30","val":10475,"accn":"0001477932-17-003995","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-15","frame":"CY2016Q1I"},{"end":"2016-07-31","val":1581545,"accn":"0001477932-16-012470","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-13","frame":"CY2016Q2I"},{"end":"2016-10-31","val":1658863,"accn":"0001477932-16-014177","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-12-20","frame":"CY2016Q3I"},{"end":"2017-01-31","val":1674788,"accn":"0001477932-17-001251","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-03-22","frame":"CY2016Q4I"},{"end":"2017-04-30","val":34860,"accn":"0001477932-17-003995","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-15"},{"end":"2017-04-30","val":34860,"accn":"0001477932-17-004603","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-09-19"},{"end":"2017-04-30","val":34860,"accn":"0001477932-20-002187","fy":2018,"fp":"Q2","form":"10-Q","filed":"2020-04-27","frame":"CY2017Q1I"},{"end":"2017-07-31","val":8011,"accn":"0001477932-17-004603","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-09-19","frame":"CY2017Q2I"},{"end":"2017-10-31","val":33504,"accn":"0001477932-20-002187","fy":2018,"fp":"Q2","form":"10-Q","filed":"2020-04-27","frame":"CY2017Q3I"}]}},"AssetsCurrent":{"label":"Assets, 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tedPartyTransactionRate":{"label":"Related 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