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This item represents a periodic decrease to the plan obligations and a decrease to plan assets.","units":{"USD":[{"start":"2009-08-01","end":"2010-07-31","val":-22105000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2010"},{"start":"2010-08-01","end":"2011-07-31","val":26575000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2011"},{"start":"2010-08-01","end":"2011-07-31","val":-26575000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29"},{"start":"2011-08-01","end":"2012-07-31","val":25758000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01"},{"start":"2011-08-01","end":"2012-07-31","val":25758000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2012"},{"start":"2012-08-01","end":"2013-07-31","val":31383000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2013"},{"start":"2012-08-01","end":"2013-07-31","val":31383000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10"},{"start":"2013-08-01","end":"2014-07-31","val":37767000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014"}]}},"DefinedBenefitPlanContributionsByEmployer":{"label":"Defined Benefit Plan, Plan Assets, Contributions by Employer","description":"Amount of contribution received by defined benefit plan from employer which increases plan assets.","units":{"USD":[{"start":"2009-08-01","end":"2010-07-31","val":47253000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2010"},{"start":"2010-08-01","end":"2011-07-31","val":50576000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2011"},{"start":"2010-08-01","end":"2011-07-31","val":50576000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29"},{"start":"2011-08-01","end":"2012-07-31","val":29224000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01"},{"start":"2011-08-01","end":"2012-07-31","val":29224000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2012"},{"start":"2012-08-01","end":"2013-07-31","val":27785000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2013"},{"start":"2012-08-01","end":"2013-07-31","val":27785000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10"},{"start":"2013-08-01","end":"2014-07-31","val":47558000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014"}]}},"DefinedBenefitPlanContributionsByPlanParticipants":{"label":"Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31)","description":"The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.","units":{"USD":[{"start":"2009-08-01","end":"2010-07-31","val":25000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2010"},{"start":"2010-08-01","end":"2011-07-31","val":25000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2011"},{"start":"2010-08-01","end":"2011-07-31","val":25000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29"},{"start":"2011-08-01","end":"2012-07-31","val":18000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01"},{"start":"2011-08-01","end":"2012-07-31","val":18000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2012"},{"start":"2012-08-01","end":"2013-07-31","val":0,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013"}]}},"DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear":{"label":"Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2013-01-31)","description":"The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.","units":{"USD":[{"end":"2011-07-31","val":20643000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":26791000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years","description":"Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":191079000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":206702000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter (Deprecated 2012-01-31)","description":"The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position).","units":{"USD":[{"end":"2011-07-31","val":188186000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":190742000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Year Five (Deprecated 2012-01-31)","description":"The amount of the benefits expected to be paid in Year 5.","units":{"USD":[{"end":"2011-07-31","val":32328000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":33257000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Year Four (Deprecated 2012-01-31)","description":"The amount of the benefits expected to be paid in Year 4.","units":{"USD":[{"end":"2011-07-31","val":29681000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":31255000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Year One (Deprecated 2012-01-31)","description":"The amount of the benefits expected to be paid in Year 1.","units":{"USD":[{"end":"2011-07-31","val":24097000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":32706000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Year Three (Deprecated 2012-01-31)","description":"The amount of the benefits expected to be paid in Year 3.","units":{"USD":[{"end":"2011-07-31","val":27007000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":30033000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo":{"label":"Defined Benefit Plan, Expected Future Benefit Payments in Year Two (Deprecated 2012-01-31)","description":"The amount of the benefits expected to be paid in Year 2.","units":{"USD":[{"end":"2011-07-31","val":34814000,"accn":"0001206774-11-002167","fy":2011,"fp":"FY","form":"10-K","filed":"2011-09-29","frame":"CY2011Q2I"},{"end":"2012-07-31","val":26297000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year One","description":"Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":27518000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":36920000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Five","description":"Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":37250000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":39969000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Four","description":"Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":35375000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":36233000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Three","description":"Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":31953000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":34760000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Two","description":"Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-07-31","val":33435000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2014-07-31","val":37354000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2014Q2I"}]}},"DefinedBenefitPlanExpectedReturnOnPlanAssets":{"label":"Defined Benefit Plan, Expected Return (Loss) on Plan Assets","description":"Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.","units":{"USD":[{"start":"2009-08-01","end":"2010-07-31","val":21401000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01","frame":"CY2010"},{"start":"2010-08-01","end":"2010-10-31","val":5715000,"accn":"0001206774-11-002827","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-08-01","end":"2011-01-31","val":11442000,"accn":"0001445305-12-000621","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-03-09"},{"start":"2010-11-01","end":"2011-01-31","val":5727000,"accn":"0001445305-12-000621","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-03-09","frame":"CY2010Q4"},{"start":"2010-08-01","end":"2011-04-30","val":17269000,"accn":"0001445305-12-001985","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-06-11"},{"start":"2011-02-01","end":"2011-04-30","val":5756000,"accn":"0001445305-12-001985","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-06-11","frame":"CY2011Q1"},{"start":"2010-08-01","end":"2011-07-31","val":22700000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01"},{"start":"2010-08-01","end":"2011-07-31","val":22700000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10","frame":"CY2011"},{"start":"2011-08-01","end":"2011-10-31","val":6267000,"accn":"0001206774-11-002827","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":6267000,"accn":"0001445305-12-003812","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-12-07","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2012-01-31","val":12425000,"accn":"0001445305-12-000621","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-03-09"},{"start":"2011-08-01","end":"2012-01-31","val":12425000,"accn":"0001445305-13-000506","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-03-06"},{"start":"2011-11-01","end":"2012-01-31","val":6158000,"accn":"0001445305-12-000621","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-03-09"},{"start":"2011-11-01","end":"2012-01-31","val":6158000,"accn":"0001445305-13-000506","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-03-06","frame":"CY2011Q4"},{"start":"2011-08-01","end":"2012-04-30","val":18636000,"accn":"0001445305-12-001985","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-06-11"},{"start":"2011-08-01","end":"2012-04-30","val":18636000,"accn":"0001445305-13-001429","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-06-06"},{"start":"2012-02-01","end":"2012-04-30","val":6211000,"accn":"0001445305-12-001985","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-06-11"},{"start":"2012-02-01","end":"2012-04-30","val":6211000,"accn":"0001445305-13-001429","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-06-06","frame":"CY2012Q1"},{"start":"2011-08-01","end":"2012-07-31","val":24794000,"accn":"0001445305-12-003029","fy":2012,"fp":"FY","form":"10-K","filed":"2012-10-01"},{"start":"2011-08-01","end":"2012-07-31","val":24794000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10"},{"start":"2011-08-01","end":"2012-07-31","val":24794000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2012"},{"start":"2012-08-01","end":"2012-10-31","val":6486000,"accn":"0001445305-12-003812","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-12-07"},{"start":"2012-08-01","end":"2012-10-31","val":6486000,"accn":"0000075829-13-000015","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-12-03","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2013-01-31","val":12988000,"accn":"0001445305-13-000506","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-03-06"},{"start":"2012-08-01","end":"2013-01-31","val":12988000,"accn":"0000075829-14-000009","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-03-03"},{"start":"2012-11-01","end":"2013-01-31","val":6502000,"accn":"0001445305-13-000506","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-03-06"},{"start":"2012-11-01","end":"2013-01-31","val":6502000,"accn":"0000075829-14-000009","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-03-03","frame":"CY2012Q4"},{"start":"2012-08-01","end":"2013-04-30","val":19308000,"accn":"0001445305-13-001429","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-06-06"},{"start":"2012-08-01","end":"2013-04-30","val":19308000,"accn":"0000075829-14-000021","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-06-02"},{"start":"2013-02-01","end":"2013-04-30","val":6320000,"accn":"0001445305-13-001429","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-06-06"},{"start":"2013-02-01","end":"2013-04-30","val":6320000,"accn":"0000075829-14-000021","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-06-02","frame":"CY2013Q1"},{"start":"2012-08-01","end":"2013-07-31","val":25633000,"accn":"0000075829-13-000007","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-10"},{"start":"2012-08-01","end":"2013-07-31","val":25633000,"accn":"0000075829-14-000025","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-08","frame":"CY2013"},{"start":"2013-08-01","end":"2013-10-31","val":5763000,"accn":"0000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