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Income Taxes (Narrative) (Details) € in Thousands, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 28, 2012 EUR (€) | Dec. 31, 2013 EUR (€) | Jan. 31, 2012 EUR (€) | Jun. 28, 2014 EUR (€) | Sep. 29, 2012 EUR (€) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Percentage of earnings from continuing operations before income taxes attributable to the United States |  |  |  |  |  | 51.00% |  |  |
Reversal of uncertain tax positions |  |  |  |  |  | $ 6,294 | $ 13,471 |  |
Valuation allowance against deferred tax asset |  |  |  |  |  | 289,078 | 287,580 |  |
Increase (decrease) in the valuation allowance |  |  |  |  |  | 1,498 | (12,892) |  |
Net operating loss carryforwards and tax credit |  |  |  |  |  | 456,130 | 458,743 |  |
Net operating loss carryforwards in various foreign jurisdictions |  |  |  |  |  | 402,255 |  |  |
Federal income taxes on earnings |  |  |  |  |  | 1,400,000 |  |  |
Gross unrecognized tax benefits |  |  |  |  |  | 46,434 | 51,037 | $ 49,599 |
Unrecognized tax benefits that would impact effective tax rate |  |  |  |  |  | 28,489 |  |  |
Interest and penalties |  |  |  |  |  | 8,020 | 5,394 |  |
Accrued/(reversed) interest and penalties |  |  |  |  |  | (2,170) | $ 5,635 |  | $ 3,579
Expected decrease in unrecognized tax benefits within next twelve months |  |  |  |  |  | $ 10,336 |  |  |
Domestic tax authority |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Effective income tax rate |  |  |  |  |  | 38.50% | 39.80% | 42.80% |
State |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Net operating loss carryforwards and tax credit |  |  |  |  |  | $ 53,874 |  |  |
Foreign tax authority |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Effective income tax rate |  |  |  |  |  | 10.80% | 0.70% | (3.10%) |
Foreign tax authority | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Interest income related to interest tax examination refund | € |  |  |  |  | € 1,583 |  |  |  |
Foreign tax authority | Tax year 2008 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € |  |  | € 23,789 | € 30,131 |  |  |  |  |
Foreign tax authority | Tax year 2005 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € | € 46,135 |  |  |  |  |  |  |  |
Foreign tax authority | Tax year 2009 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € | € 35,567 |  |  |  |  |  |  |  |
Foreign tax authority | Tax year 2006 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € |  | € 38,817 |  |  |  |  |  |  |
Foreign tax authority | Tax year 2007 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € |  | 39,635 |  |  |  |  |  |  |
Foreign tax authority | Tax year 2010 | Belgium |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Foreign tax assessment | € |  | € 43,117 |  |  |  |  |  |  |
Foreign subsidiary and state net operating losses and tax credits |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Increase (decrease) in the valuation allowance |  |  |  |  |  | $ (9,364) | $ (24,718) |  |
State deferred tax assets |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Valuation allowance against deferred tax asset |  |  |  |  |  | 26,992 |  |  |
Operating loss carryforward, foreign jurisdiction |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Valuation allowance against deferred tax asset |  |  |  |  |  | 249,529 |  |  |
IVC group |  |  |  |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |
Reversal of uncertain tax positions |  |  |  |  |  | $ 5,371 | $ 11,180 |  |

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