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date.","units":{"USD":[{"end":"2011-12-31","val":28000000,"accn":"0001193125-14-121596","fy":2013,"fp":"FY","form":"40-F","filed":"2014-03-28","frame":"CY2011Q4I"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-14-121596","fy":2013,"fp":"FY","form":"40-F","filed":"2014-03-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-109609","fy":2014,"fp":"FY","form":"40-F","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2015-12-31","val":5000000,"accn":"0001193125-16-521370","fy":2015,"fp":"FY","form":"40-F","filed":"2016-03-29","frame":"CY2015Q4I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets","description":"Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.","units":{"USD":[{"end":"2013-12-31","val":2000000,"accn":"0001193125-14-121596","fy":2013,"fp":"FY","form":"40-F","filed":"2014-03-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-109609","fy":2014,"fp":"FY","form":"40-F","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-15-109609","fy":2014,"fp":"FY","form":"40-F","filed":"2015-03-27"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-16-521370","fy":2015,"fp":"FY","form":"40-F","filed":"2016-03-29","frame":"CY2014Q4I"},{"end":"2015-12-31","val":11000000,"accn":"0001193125-16-521370","fy":2015,"fp":"FY","form":"40-F","filed":"2016-03-29","frame":"CY2015Q4I"},{"end":"2020-12-29","val":1000000,"accn":"0001193125-21-097041","fy":2020,"fp":"FY","form":"40-F","filed":"2021-03-29","frame":"CY2020Q4I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment":{"label":"Business Combination, Recognized Identifiable Assets 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date.","units":{"USD":[{"end":"2014-12-31","val":24000000,"accn":"0001193125-15-109609","fy":2014,"fp":"FY","form":"40-F","filed":"2015-03-27"},{"end":"2014-12-31","val":24000000,"accn":"0001193125-16-521370","fy":2015,"fp":"FY","form":"40-F","filed":"2016-03-29","frame":"CY2014Q4I"},{"end":"2015-12-31","val":19000000,"accn":"0001193125-16-521370","fy":2015,"fp":"FY","form":"40-F","filed":"2016-03-29"},{"end":"2015-12-31","val":19000000,"accn":"0001193125-17-102145","fy":2016,"fp":"FY","form":"40-F","filed":"2017-03-30","frame":"CY2015Q4I"},{"end":"2016-12-31","val":16000000,"accn":"0001193125-17-102145","fy":2016,"fp":"FY","form":"40-F","filed":"2017-03-30"},{"end":"2016-12-31","val":16000000,"accn":"0001193125-18-099856","fy":2017,"fp":"FY","form":"40-F","filed":"2018-03-29","frame":"CY2016Q4I"},{"end":"2017-12-31","val":15000000,"accn":"0001193125-18-099856","fy":2017,"fp":"FY","form":"40-F","filed":"2018-03-29"},{"end":"2017-12-31","val":15000000,"accn":"0001193125-19-092912","fy":2018,"fp":"FY","form":"40-F","filed":"2019-03-29","frame":"CY2017Q4I"},{"end":"2018-12-31","val":16000000,"accn":"0001193125-19-092912","fy":2018,"fp":"FY","form":"40-F","filed":"2019-03-29"},{"end":"2018-12-31","val":16000000,"accn":"0001193125-20-088979","fy":2019,"fp":"FY","form":"40-F","filed":"2020-03-27","frame":"CY2018Q4I"}]}},"Cash":{"label":"Cash","description":"Amount 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Includes other kinds of accounts that have the general characteristics of demand deposits. 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onStockSharesIssued":{"label":"Common 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