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Quarterly Financial Data - Narrative (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2011 | Oct. 01, 2011 | Jul. 02, 2011 | Apr. 02, 2011 | Dec. 31, 2010 | Oct. 02, 2010 | Jul. 03, 2010 | Apr. 03, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring, integration, and other charges, net of taxes | $ 11,223 | $ 6,048 | $ 3,584 | $ 7,199 | $ 5,459 | $ 9,506 | $ 4,095 | $ 5,545 | $ 28,054 | $ 24,605 | $ 75,720
Restructuring Charges Net of Tax Per Share Basic and Diluted | $ 0.1 | $ 0.05 | $ 0.03 | $ 0.06 | $ 0.05 | $ 0.08 | $ 0.03 | $ 0.05 |  | $ 0.21 | $ 0.63
Non-cash impact of tax matters | 28,928 |  |  |  |  |  |  |  | 0 | (11,716) | 0
Extinguishment of Debt, Gain (Loss), Net of Tax | 549 |  |  |  |  |  | 964 |  |  | (964) | (3,228)
Extinguishment of Debt Gain Loss Net of Tax Per Share Basic and Diluted |  |  |  |  |  |  | $ 0.01 |  |  | $ (0.01) | $ 0.03
Gain Loss Related to Litigation Settlement Net of Tax |  |  |  | 3,609 |  |  |  |  | (3,609) | 0 | 0
Loss Related to Litigation Settlement, Per Share, Basic and Diluted |  |  |  | $ 0.03 |  |  |  |  |  |  |
Gain on bargain purchase | 410 |  |  | (1,078) |  |  |  |  |  |  |
Gain On Bargain Purchase Of Business Per Share Basic and Diluted |  |  |  | $ 0.01 |  |  |  |  |  |  |
Reduction of the Provision for Income Taxes [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions, Per Share Basic and Diluted |  |  |  |  | $ 0.08 |  |  |  |  |  |
Non-cash impact of tax matters | 28,928 |  |  |  | 9,404 |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions, Per Share Basic | $ 0.26 |  |  |  |  |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions, Per Share Diluted Basis | $ 0.25 |  |  |  |  |  |  |  |  |  |
Reduction of Interest Expense [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions, Per Share Basic and Diluted |  |  |  |  | $ 0.02 |  |  |  |  |  |
Non-cash impact of tax matters |  |  |  |  | $ 2,312 |  |  |  |  |  |

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