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Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2009-01-01","end":"2009-12-31","val":0.22,"accn":"0001193125-12-122747","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-20","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.1,"accn":"0000950123-11-077394","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":-0.09,"accn":"0000950123-11-077394","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.18,"accn":"0000950123-11-094393","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-02"},{"start":"2010-07-01","end":"2010-09-30","val":-0.08,"accn":"0000950123-11-094393","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-02","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-0.27,"accn":"0001193125-12-122747","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-20"},{"start":"2010-01-01","end":"2010-12-31","val":-0.27,"accn":"0000025232-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-0.08,"accn":"0000025232-12-000005","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-0.12,"accn":"0000950123-11-077394","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":-0.12,"accn":"0000025232-12-000010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-31"},{"start":"2011-04-01","end":"2011-06-30","val":-0.05,"accn":"0000950123-11-077394","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":-0.05,"accn":"0000025232-12-000010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-31","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-0.12,"accn":"0000950123-11-094393","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-02"},{"start":"2011-01-01","end":"2011-09-30","val":-0.12,"accn":"0000025232-12-000017","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-30"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000950123-11-094393","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000025232-12-000017","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-30","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-1.36,"accn":"0001193125-12-122747","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-03-20"},{"start":"2011-01-01","end":"2011-12-31","val":-1.36,"accn":"0000025232-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-13"},{"start":"2011-01-01","end":"2011-12-31","val":-1.36,"accn":"0000025232-14-000004","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-0.13,"accn":"0000025232-12-000005","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-03-31","val":-0.13,"accn":"0000025232-13-000025","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.06,"accn":"0000025232-12-000010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-31"},{"start":"2012-01-01","end":"2012-06-30","val":-0.06,"accn":"0000025232-13-000029","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-29"},{"start":"2012-04-01","end":"2012-06-30","val":0.06,"accn":"0000025232-12-000010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-31"},{"start":"2012-04-01","end":"2012-06-30","val":0.06,"accn":"0000025232-13-000029","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-29","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.03,"accn":"0000025232-12-000017","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-30"},{"start":"2012-01-01","end":"2012-09-30","val":0.03,"accn":"0000025232-13-000034","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.09,"accn":"0000025232-12-000017","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.09,"accn":"0000025232-13-000034","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-30","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.32,"accn":"0000025232-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-13"},{"start":"2012-01-01","end":"2012-12-31","val":0.32,"accn":"0000025232-14-000004","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-13"},{"start":"2012-01-01","end":"2012-12-31","val":0.32,"accn":"0000025232-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-12"},{"start":"2012-01-01","end":"2012-12-31","val":0.32,"accn":"0000025232-15-000017","fy":2014,"fp":"FY","form":"10-K/A","filed":"2015-05-07","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.51,"accn":"0000025232-13-000025","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end"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Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests","description":"Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. 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Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000025232-15-000017","fy":2014,"fp":"FY","form":"10-K/A","filed":"2015-05-07","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0000025232-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-12"},{"end":"2012-12-31","val":0,"accn":"0000025232-14-000037","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29"},{"end":"2013-09-30","val":0,"accn":"0000025232-14-000037","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000025232-15-000017","fy":2014,"fp":"FY","form":"10-K/A","filed":"2015-05-07","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0000025232-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-12"},{"end":"2013-12-31","val":0,"accn":"0000025232-14-000037","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29"},{"end":"2014-09-30","val":0,"accn":"0000025232-14-000037","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000025232-15-000017","fy":2014,"fp":"FY","form":"10-K/A","filed":"2015-05-07","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0000025232-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-12"}]}},"TemporaryEquityRedemptionValue":{"label":"Temporary Equity, Redemption Value (Deprecated 2014-01-31)","description":"The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the 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In retail store and office building leases, for example, tenant reimbursements may cover items such as taxes, utilities, and common area 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transactions.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000025232-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-05","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":7025000,"accn":"0000025232-19-000030","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-07-24"},{"start":"2018-01-01","end":"2018-09-30","val":7025000,"accn":"0000025232-19-000044","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-10-23"},{"start":"2018-01-01","end":"2018-12-31","val":7025000,"accn":"0000025232-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000025232-20-000033","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-04-30","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000025232-19-000030","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-07-24"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000025232-20-000043","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000025232-19-000044","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-10-23"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000025232-20-000053","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-10-28"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000025232-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":29121000,"accn":"0000025232-20-000033","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-04-30"},{"start":"2020-01-01","end":"2020-03-31","val":29121000,"accn":"0000025232-21-000030","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-04-29","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":29121000,"accn":"0000025232-20-000043","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30"},{"start":"2020-01-01","end":"2020-06-30","val":29121000,"accn":"0000025232-21-000043","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-07-29"},{"start":"2020-01-01","end":"2020-09-30","val":29121000,"accn":"0000025232-20-000053","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-10-28"},{"start":"2020-01-01","end":"2020-09-30","val":29121000,"accn":"0000025232-21-000071","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-10-28"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000025232-21-000030","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-04-29","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000025232-21-000043","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000025232-21-000071","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-10-28"},{"start":"2024-01-01","end":"2024-03-31","val":145696000,"accn":"0000025232-25-000029","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-01","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":145696000,"accn":"0000025232-25-000045","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-07-31"},{"start":"2025-01-01","end":"2025-03-31","val":0,"accn":"0000025232-25-000029","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-01","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0,"accn":"0000025232-25-000045","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-07-31"}]}},"TransferOfOtherRealEstate":{"label":"Real 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