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Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jan. 01, 2017 | Dec. 27, 2015
Reclassifications out of accumulated other comprehensive income (loss) |  |
Balance at the beginning of the period | $ 869,259 |
Balance at the end of the period | 872,571 |
Foreign Currency Translation Adjustments |  |
Reclassifications out of accumulated other comprehensive income (loss) |  |
Balance at the beginning of the period | (126,844) | $ (141,229)
Other comprehensive income (loss) before classifications | (16,182) | (16,484)
Net current-period other comprehensive income (loss) | (16,182) | (16,484)
Balance at the end of the period | (143,026) | (157,713)
Loss on Derivative Instruments |  |
Reclassifications out of accumulated other comprehensive income (loss) |  |
Balance at the beginning of the period | (1,164) | (1,942)
Other comprehensive income (loss) before classifications | 1,338 | 1,671
Reclassification adjustment of prior derivative settlement, net of tax | (342) | (561)
Net current-period other comprehensive income (loss) | 996 | 1,110
Balance at the end of the period | (168) | (832)
Accumulated Other Comprehensive Loss |  |
Reclassifications out of accumulated other comprehensive income (loss) |  |
Balance at the beginning of the period | (128,008) | (143,171)
Other comprehensive income (loss) before classifications | (14,844) | (14,813)
Reclassification adjustment of prior derivative settlement, net of tax | (342) | (561)
Net current-period other comprehensive income (loss) | (15,186) | (15,374)
Balance at the end of the period | $ (143,194) | $ (158,545)

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