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-06-14","frame":"CY2015Q1"},{"start":"2015-02-01","end":"2015-08-01","val":-3614000,"accn":"0000880460-15-000019","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-09-15"},{"start":"2015-02-01","end":"2015-08-01","val":-3614000,"accn":"0000880460-16-000057","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-09-09"},{"start":"2015-02-01","end":"2015-10-31","val":-5253000,"accn":"0000880460-15-000028","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-12-15"},{"start":"2015-02-01","end":"2015-10-31","val":-5253000,"accn":"0000880460-16-000066","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-12-13"},{"start":"2015-02-01","end":"2016-01-30","val":-8485000,"accn":"0000880460-16-000041","fy":29953000,"fp":"FY","form":"10-K","filed":"2016-04-29"},{"start":"2015-02-01","end":"2016-01-30","val":-8485000,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2015"},{"start":"2016-01-31","end":"2016-04-30","val":-809000,"accn":"0000880460-16-000048","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-06-14"},{"start":"2016-01-31","end":"2016-04-30","val":-809000,"accn":"0000880460-17-000024","fy":2016,"fp":"Q1","form":"10-Q","filed":"2017-06-19","frame":"CY2016Q1"},{"start":"2016-01-31","end":"2016-07-30","val":-1271000,"accn":"0000880460-16-000057","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-09-09"},{"start":"2016-01-31","end":"2016-10-29","val":-2617000,"accn":"0000880460-16-000066","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-12-13"},{"start":"2016-01-31","end":"2017-01-28","val":-3118000,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2016"},{"start":"2017-01-29","end":"2017-04-29","val":-295000,"accn":"0000880460-17-000024","fy":2016,"fp":"Q1","form":"10-Q","filed":"2017-06-19","frame":"CY2017Q1"}]}},"PropertyPlantAndEquipmentFairValueDisclosure":{"label":"Property, 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Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2013-02-02","val":0,"accn":"0000880460-14-000009","fy":2013,"fp":"FY","form":"10-K","filed":"2014-05-01","frame":"CY2012Q4I"},{"end":"2015-01-31","val":0,"accn":"0000880460-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-04-30"},{"end":"2015-01-31","val":0,"accn":"0000880460-16-000041","fy":29953000,"fp":"FY","form":"10-K","filed":"2016-04-29"},{"end":"2015-01-31","val":0,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2014Q4I"},{"end":"2016-01-30","val":0,"accn":"0000880460-16-000041","fy":29953000,"fp":"FY","form":"10-K","filed":"2016-04-29","frame":"CY2015Q4I"},{"end":"2017-01-28","val":0,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2016Q4I"}]}},"PropertyPlantAndEquipmentGross":{"label":"Property, Plant and Equipment, Gross","description":"Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2012-01-28","val":54061000,"accn":"0000880460-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-03","frame":"CY2011Q4I"},{"end":"2013-02-02","val":52913000,"accn":"0000880460-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-03"},{"end":"2013-02-02","val":52913000,"accn":"0000880460-14-000009","fy":2013,"fp":"FY","form":"10-K","filed":"2014-05-01","frame":"CY2012Q4I"},{"end":"2014-02-01","val":55154000,"accn":"0000880460-14-000009","fy":2013,"fp":"FY","form":"10-K","filed":"2014-05-01"},{"end":"2014-02-01","val":55154000,"accn":"0000880460-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-04-30","frame":"CY2013Q4I"},{"end":"2015-01-31","val":64165000,"accn":"0000880460-15-000006","fy":2014,"fp":"FY","form":"10-K","filed":"2015-04-30"},{"end":"2015-01-31","val":64165000,"accn":"0000880460-16-000041","fy":29953000,"fp":"FY","form":"10-K","filed":"2016-04-29","frame":"CY2014Q4I"},{"end":"2016-01-30","val":69356000,"accn":"0000880460-16-000041","fy":29953000,"fp":"FY","form":"10-K","filed":"2016-04-29"},{"end":"2016-01-30","val":69356000,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2015Q4I"},{"end":"2017-01-28","val":57310000,"accn":"0000880460-17-000007","fy":29953000,"fp":"FY","form":"10-K","filed":"2017-04-28","frame":"CY2016Q4I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and 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