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Note 12. Financing Arrangements (Details) - Net Carrying Amount of the Liability Component of the Notes (Senior Convertible Notes [Member], USD $)
In Thousands, unless otherwise specified |
Dec. 28, 2014
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Dec. 29, 2013
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Aug. 26, 2013
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Senior Convertible Notes [Member]
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| Note 12. Financing Arrangements (Details) - Net Carrying Amount of the Liability Component of the Notes [Line Items] | |||
| Principal amount | $ 150,000 | $ 150,000 | $ 150,000 |
| Unamortized debt discount | (33,561) | (38,267) | |
| Net carrying value | $ 116,439 | $ 111,733 |