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Borrowings and Credit Arrangements (Tables) | 6 Months Ended
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Mar. 26, 2016
Debt Disclosure [Abstract] |
Company's Borrowings | The Company’s borrowings consisted of the following:
| March 26, 2016 |  | September 26, 2015
Current debt obligations, net of debt discount: |  |  |
Term Loan | $ | 74.7 |  |  | $ | 74.6 |
Revolver | 175.0 |  |  | 175.0 |
Convertible Notes | 58.0 |  |  | 142.2 |
Total current debt obligations | $ | 307.7 |  |  | $ | 391.8 |
Long-term debt obligations, net of debt discount: |  |  |
Term Loan | 1,363.1 |  |  | 1,399.8 |
2022 Senior Notes | 987.7 |  |  | 986.7 |
Convertible Notes | 747.2 |  |  | 861.5 |
Total long-term debt obligations | $ | 3,098.0 |  |  | $ | 3,248.0 |
Total debt obligations | $ | 3,405.7 |  |  | $ | 3,639.8 |
Interest Expense under Convertible Notes | Interest expense under the Convertible Notes was as follows:
| Three Months Ended |  | Six Months Ended
| March 26, 2016 |  | March 28, 2015 |  | March 26, 2016 |  | March 28, 2015
Amortization of debt discount | $ | 5.8 |  |  | $ | 9.0 |  |  | $ | 12.2 |  |  | $ | 17.8 |
Amortization of deferred financing costs | 0.3 |  |  | 0.4 |  |  | 0.6 |  |  | 0.9 |
Principal accretion | 4.1 |  |  | 4.0 |  |  | 8.2 |  |  | 7.9 |
Non-cash interest expense | 10.2 |  |  | 13.4 |  |  | 21.0 |  |  | 26.6 |
2.00% accrued interest (cash) | 2.7 |  |  | 4.8 |  |  | 5.9 |  |  | 9.5 |
| $ | 12.9 |  |  | $ | 18.2 |  |  | $ | 26.9 |  |  | $ | 36.1 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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