| Real Estate Liabilities Associated with Assets Held for Development and Sale | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Real Estate Liabilities Associated with Assets Held for Development and Sale, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| For banks, amount of all liabilities for which a financial institution is required to include in its calculation of net investment in real estate assets held for development or sale. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |