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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  | 12 Months Ended |  |  |
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Dec. 29, 2013 | Jun. 30, 2013 | Dec. 29, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] | Dec. 29, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Y | Nov. 15, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Prior Fiscal Year [Member] | Jun. 22, 2014 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Scenario, Forecast [Member] | Nov. 15, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Scenario, Forecast [Member] | Jan. 06, 2010 Third Quarter Fiscal 2010 Investment Tax Credit Award [Member] | Nov. 15, 2013 Maximum [Member] Second Quarter Fiscal 2014 Investment Tax Credit Award [Member]
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |  |
U.S. statutory tax rate | 35.00% |  |  |  |  |  |  |  |
48C Tax Credit Carryforward, Amount |  |  |  |  | $ 15 |  | $ 15 | $ 39 | $ 30
Amount Of Qualified Equipment |  |  |  | 100 |  |  |  |  |
Investment Credit Period Recognized |  |  |  | 5 |  |  |  |  |
Income tax benefit related to award |  |  | 3.7 |  |  | 5.2 |  |  |
Unrecognized tax benefits balance | 20.0 | 2.7 |  |  |  |  |  |  |
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 18.0 |  |  |  |  |  |  |  |
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 0.7 |  |  |  |  |  |  |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 20.0 |  |  |  |  |  |  |  |
Estimated change in unrecognized tax benefits in next 12 months | $ 1.4 |  |  |  |  |  |  |  |

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- Definition Number of years over which the benefit of the investment tax credit will be recognized. + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to investment tax credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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