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Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. 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For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred 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Paid in Capital, Common Stock","description":"Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in 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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 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This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. 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The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project (generally one to seven years), usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property.","units":{"USD":[{"end":"2013-04-30","val":0,"accn":"0001003297-14-000313","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-06-10","frame":"CY2013Q1I"},{"end":"2013-10-31","val":0,"accn":"0001003297-14-000313","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-06-10","frame":"CY2013Q3I"}]}},"LongTermDebt":{"label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2015-04-30","val":203804940,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2015Q1I"},{"end":"2016-04-30","val":221547920,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2016Q1I"},{"end":"2016-04-30","val":221547920,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05"},{"end":"2017-04-30","val":230797643,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2017Q1I"},{"end":"2017-04-30","val":230797643,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31"},{"end":"2018-04-30","val":230230866,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":{"label":"Long-Term Debt, Maturity, after Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":154870039,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":169702580,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":173162269,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":30092123,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":32602471,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":38765866,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":{"label":"Long-Term Debt, Maturity, Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":2296650,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":6628223,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":3771121,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":{"label":"Long-Term Debt, Maturity, Year Four","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":5376865,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":5862559,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":4808491,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":{"label":"Long-Term Debt, Maturity, Year Three","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":3138909,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":7116034,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":3453706,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-04-30","val":25773334,"accn":"0001003297-16-000794","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-05","frame":"CY2016Q1I"},{"end":"2017-04-30","val":8885776,"accn":"0001003297-17-000263","fy":2017,"fp":"FY","form":"10-K","filed":"2017-07-31","frame":"CY2017Q1I"},{"end":"2018-04-30","val":6269413,"accn":"0001003297-18-000130","fy":2018,"fp":"FY","form":"10-K","filed":"2018-07-30","frame":"CY2018Q1I"}]}},"LongtermConstructionLoanCurrentAndNoncurrent":{"label":"Long-term Construction Loan","description":"This element represents the current and noncurrent portions of a long-term real estate loan with an initial maturity beyond one year or beyond the normal operating cycle, if longer, to finance building costs. 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