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Borrowings - Conversions (Details) - USD ($) $ in Thousands, shares in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 25, 2016 | Jun. 26, 2016 | Sep. 27, 2015 | Sep. 25, 2016 | Sep. 27, 2015
Debt Instrument [Line Items] |  |  |  |  |
Debt conversion, amount converted |  |  |  | $ 35,205 | $ 62
Conversion of convertible notes, shares issued upon conversion | 1.3 |  | 2.9 | 1.9 | 2.6
Loss on extinguishment of debt | $ 0 |  | $ 0 | $ 19,261 | $ 10,454
Conversion [Member] | Convertible Notes Payable | Convertible Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount |  | $ 44,300 |  |  |
Debt conversion, amount converted |  | $ 44,300 |  |  |
Conversion of convertible notes, shares issued upon conversion |  | 0.4 |  |  |
Loss on extinguishment of debt |  | $ 3,000 |  |  |
Dealer Counterparty | Conversion [Member] | Convertible Notes Payable | Convertible Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Conversion of convertible notes, shares issued upon conversion |  | 0.4 |  |  |

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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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