Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income Loss) (Details) (USD $) | 3 Months Ended | 9 Months Ended |
In Thousands, unless otherwise specified | Sep. 28, 2013 | Sep. 29, 2012 | Sep. 28, 2013 | Sep. 29, 2012 |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax | ' | ' | ($842) | ' |
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | ' | ' | -368 | ' |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | 247 | 5 | 229 | -288 |
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax | -613 | ' | -613 | ' |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | ' | ' | 15,960 | ' |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | 1,432 | 2,468 | -2,473 | 2,794 |
Other Comprehensive Income (Loss), Reclassification Adjustment on Foreign Currency Transaction And Translation Gain Loss Included In Net Income, Net Of Tax | ' | ' | 0 | ' |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | 13,487 | ' | 13,487 | ' |
Accumulated Other Comprehensive Income (Loss), Net of Tax | ' | ' | 15,118 | ' |
Other Comprehensive Income (Loss), Net of Tax | 1,679 | 2,473 | -2,244 | 2,506 |
Accumulated Other Comprehensive Income (Loss), Net of Tax | 12,874 | ' | 12,874 | ' |
Derivatives Designated As Hedging Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax | 185 | -21 | 597 | 74 |
Income (Loss) Reclassified from Other Comprehensive Income [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Net of Tax | ' | ' | 597 | ' |
Other Comprehensive Income (Loss) Before Reclassifications [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Net of Tax | ' | ' | -2,841 | ' |
Foreign Exchange Forward [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | 246 | 106 | -2 | 82 |
Foreign Exchange Forward [Member] | Net Revenue [Member] | Derivatives Designated As Hedging Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax | 75 | -149 | 265 | -308 |
Foreign Exchange Forward [Member] | Other Income [Member] | Derivatives Designated As Hedging Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax | 20 | 15 | 42 | 32 |
Interest Rate Swaps [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | 1 | -101 | 231 | -370 |
Interest Rate Swaps [Member] | Interest Expense [Member] | Derivatives Designated As Hedging Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Flow Hedging [Member] | ' | ' | ' | ' |
Schedule Of Accumulated Other Comprehensive Income Loss [Line Items] | ' | ' | ' | ' |
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax | $90 | $113 | $290 | $350 |