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Fair Value Measurements (Tables) | 12 Months Ended
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Sep. 24, 2016
Fair Value Disclosures [Abstract] |
Fair Value Assets and Liabilities Measured on Recurring Basis | Assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following:
|  |  | Fair Value Measurements at September 24, 2016
| Carrying Value |  | Quoted Prices in Active Market for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Equity securities | $ | 1.0 |  |  | $ | 1.0 |  |  | $ | — |  |  | $ | — |
Interest rate caps - derivative | 1.4 |  |  | — |  |  | 1.4 |  |  | — |
Forward foreign currency contracts | 0.2 |  |  | — |  |  | 0.2 |  |  | — |
Total | $ | 2.6 |  |  | $ | 1.0 |  |  | $ | 1.6 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Deferred compensation liabilities | $ | 37.0 |  |  | $ | 37.0 |  |  | $ | — |  |  | $ | — |
Forward foreign currency contracts | 1.3 |  |  | — |  |  | 1.3 |  |  | — |
Total | $ | 38.3 |  |  | $ | 37.0 |  |  | $ | 1.3 |  |  | $ | — |
|  |  | Fair Value Measurements at September 26, 2015
| Carrying Value |  | Quoted Prices in Active Market for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Marketable securities: |  |  |  |  |  |  |
Equity securities | $ | 15.2 |  |  | $ | 15.2 |  |  | $ | — |  |  | $ | — |
Mutual funds | 5.6 |  |  | 5.6 |  |  | — |  |  | — |
Interest rate cap- derivative | 6.9 |  |  | — |  |  | 6.9 |  |  | — |
Total | $ | 27.7 |  |  | $ | 20.8 |  |  | $ | 6.9 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Deferred compensation liabilities | $ | 29.4 |  |  | $ | 29.4 |  |  | $ | — |  |  | $ | — |
Total | $ | 29.4 |  |  | $ | 29.4 |  |  | $ | — |  |  | $ | — |
Changes in Fair Value of Recurring Fair Value Measurements Using Significant Unobservable Inputs (Level 3), Consisting of Contingent Consideration Liabilities | Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3), which solely consisted of contingent consideration liabilities, during the year ended September 27, 2014 were as follows:
| 2014
Balance at beginning of period | $ | 3.8 |
Payments / Accruals | (3.8 | )
Balance at end of period | $ | — |
Schedule of Estimated Fair Value of Assets Measured on a Nonrecurring Basis | The following chart depicts certain assets presented at fair value using level 3 inputs under the fair value hierarchy measured on a nonrecurring basis for which the Company has recorded impairment charges:
|  |  | Fair Value Measurements Using |  |
| Fair Value |  | Quoted Prices in Active Market for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total Losses
Fiscal 2014: |  |  |  |  |  |  |  |  |
Intangible assets | $ | 36.2 |  |  | — |  |  | — |  |  | $ | 36.2 |  |  | $ | (32.2 | )
Property and equipment | 1.0 |  |  | — |  |  | — |  |  | 1.0 |  |  | (1.5 | )
Buildings | 1.4 |  |  | — |  |  | — |  |  | 1.4 |  |  | (3.1 | )
Cost-method equity investments | 0.8 |  |  | — |  |  | — |  |  | 0.8 |  |  | (6.9 | )
|  |  |  |  |  |  |  |  | $ | (43.7 | )
Estimated Fair Values of Convertible Notes | The estimated fair values of the Company’s Convertible Notes at September 24, 2016 and September 26, 2015 are as follows:
| 2016 |  | 2015
2010 Notes | 20.2 |  |  | 264.1 |
2012 Notes | 481.9 |  |  | 688.2 |
2013 Notes | 458.8 |  |  | 471.8 |
| $ | 960.9 |  |  | $ | 1,424.1 |

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- Definition Schedule of reconciliation of accounts remeasured at fair value on recurring basis with level 3 inputs. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19296-110258 + Details
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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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