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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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fp":"FY","form":"10-K","filed":"2016-03-21","frame":"CY2014Q4I"},{"end":"2015-01-31","val":866246000,"accn":"0000701811-15-000012","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-12-03"},{"end":"2015-01-31","val":866246000,"accn":"0000701811-15-000009","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-31"},{"end":"2015-01-31","val":866246000,"accn":"0000701811-15-000006","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-06-03"},{"end":"2015-01-31","val":866246000,"accn":"0000701811-15-000003","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"end":"2015-04-30","val":785614000,"accn":"0000701811-15-000006","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-06-03","frame":"CY2015Q1I"},{"end":"2015-07-31","val":831360000,"accn":"0000701811-15-000009","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-31","frame":"CY2015Q2I"},{"end":"2015-10-31","val":817867000,"accn":"0000701811-15-000012","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-12-03","frame":"CY2015Q3I"},{"end":"2016-01-31","val":898467000,"accn":"0000701811-17-000004","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-17","frame":"CY2015Q4I"},{"end":"2016-01-31","val":898467000,"accn":"0000701811-16-000028","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-12-06"},{"end":"2016-01-31","val":898467000,"accn":"0000701811-16-000022","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-30"},{"end":"2016-01-31","val":898467000,"accn":"0000701811-16-000019","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-06-02"},{"end":"2016-01-31","val":898467000,"accn":"0000701811-16-000016","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-21"},{"end":"2016-04-30","val":708646000,"accn":"0000701811-16-000019","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-06-02","frame":"CY2016Q1I"},{"end":"2016-07-31","val":725747000,"accn":"0000701811-16-000022","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-30","frame":"CY2016Q2I"},{"end":"2016-10-31","val":756912000,"accn":"0000701811-16-000028","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-12-06","frame":"CY2016Q3I"},{"end":"2017-01-31","val":1023851000,"accn":"0000701811-17-000004","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-17","frame":"CY2016Q4I"}]}},"BuildingsAndImprovementsGross":{"label":"Buildings and Improvements, Gross","description":"Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.","units":{"USD":[{"end":"2011-01-31","val":75211000,"accn":"0001193125-12-117554","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2012-01-31","val":85704000,"accn":"0001193125-12-117554","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2012-01-31","val":85704000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2013-01-31","val":97989000,"accn":"0000701811-14-000003","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-17","frame":"CY2012Q4I"},{"end":"2013-01-31","val":97989000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2014-01-31","val":101073000,"accn":"0000701811-15-000003","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013Q4I"},{"end":"2014-01-31","val":101073000,"accn":"0000701811-14-000003","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-17"},{"end":"2015-01-31","val":110854000,"accn":"0000701811-15-000003","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2014Q4I"}]}},"BusinessAcquisitionContingentConsiderationAtFairValueCurrent":{"label":"Business 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applicable.","units":{"USD":[{"end":"2011-10-31","val":795000,"accn":"0001193125-11-333150","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-12-07","frame":"CY2011Q3I"},{"end":"2012-01-31","val":510000,"accn":"0001445305-12-001941","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-06"},{"end":"2012-01-31","val":510000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2012-01-31","val":510000,"accn":"0000701811-12-000007","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-04"},{"end":"2012-01-31","val":510000,"accn":"0000701811-12-000004","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-07"},{"end":"2012-04-30","val":772000,"accn":"0001445305-12-001941","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-06","frame":"CY2012Q1I"},{"end":"2012-07-31","val":1989000,"accn":"0000701811-12-000004","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-10-31","val":1896000,"accn":"0000701811-12-000007","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-04","frame":"CY2012Q3I"},{"end":"2013-01-31","val":1197000,"accn":"0000701811-13-000007","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-05","frame":"CY2012Q4I"},{"end":"2013-01-31","val":1197000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2013-04-30","val":1540000,"accn":"0000701811-13-000007","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-05","frame":"CY2013Q1I"}]}},"BusinessAcquisitionContingentConsiderationAtFairValueNoncurrent":{"label":"Business 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applicable.","units":{"USD":[{"end":"2011-10-31","val":4876000,"accn":"0001193125-11-333150","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-12-07","frame":"CY2011Q3I"},{"end":"2012-01-31","val":5610000,"accn":"0001445305-12-001941","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-06"},{"end":"2012-01-31","val":5610000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2012-01-31","val":5610000,"accn":"0000701811-12-000007","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-04"},{"end":"2012-01-31","val":5610000,"accn":"0000701811-12-000004","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-07"},{"end":"2012-04-30","val":4381000,"accn":"0001445305-12-001941","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-06","frame":"CY2012Q1I"},{"end":"2012-07-31","val":4161000,"accn":"0000701811-12-000004","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-07","frame":"CY2012Q2I"},{"end":"2012-10-31","val":4321000,"accn":"0000701811-12-000007","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-04","frame":"CY2012Q3I"},{"end":"2013-01-31","val":4819000,"accn":"0000701811-13-000007","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-05","frame":"CY2012Q4I"},{"end":"2013-01-31","val":4819000,"accn":"0000701811-13-000003","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2013-04-30","val":2800000,"accn":"0000701811-13-000007","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-05","frame":"CY2013Q1I"}]}},"BusinessAcquisitionCostOfAcquiredEntityPurchasePrice":{"label":"Business 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