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Comprehensive Income - Foreign Currency Translation Gain (Loss) Components (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 01, 2017 USD ($) | Jun. 25, 2016 USD ($) | Jul. 01, 2017 USD ($) | Jun. 25, 2016 USD ($) | Apr. 01, 2017 | Dec. 31, 2016 | Mar. 26, 2016 | Dec. 26, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 72,798 | $ (5,568) | $ 114,250 | $ 4,422 |  |  |  |
Euro |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 53,494 | $ 7 | $ 65,342 | $ 11,177 |  |  |  |
FX rate into USD | 1.14 | 1.12 | 1.14 | 1.12 | 1.07 | 1.05 | 1.12 | 1.1
British Pound |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 10,938 | $ (7,603) | $ 15,544 | $ (22,375) |  |  |  |
FX rate into USD | 1.3 | 1.38 | 1.3 | 1.38 | 1.25 | 1.23 | 1.41 | 1.49
Australian Dollar |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 1,737 | $ 371 | $ 12,453 | $ 5,442 |  |  |  |
FX rate into USD | 0.77 | 0.75 | 0.77 | 0.75 | 0.76 | 0.72 | 0.75 | 0.73
Canadian Dollar |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 3,368 | $ 2,550 | $ 4,180 | $ 7,506 |  |  |  |
FX rate into USD | 0.77 | 0.77 | 0.77 | 0.77 | 0.75 | 0.74 | 0.75 | 0.72
Polish Zloty |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 4,312 | $ (2,115) | $ 6,951 | $ (1,616) |  |  |  |
FX rate into USD | 0.27 | 0.25 | 0.27 | 0.25 | 0.25 | 0.24 | 0.26 | 0.26
Swiss Franc |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 3,742 | $ 298 | $ 4,898 | $ 1,219 |  |  |  |
FX rate into USD | 1.04 | 1.03 | 1.04 | 1.03 | 1 | 0.98 | 1.02 | 1.01
Brazilian Real |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ (7,902) | $ 1,299 | $ (2,264) | $ 2,229 |  |  |  |
FX rate into USD | 0.3 | 0.3 | 0.3 | 0.3 | 0.32 | 0.31 | 0.27 | 0.25
All other currencies |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) | $ 3,109 | $ (375) | $ 7,146 | $ 840 |  |  |  |

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