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Fair value measurement (Tables) | 9 Months Ended
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Sep. 30, 2012
Financial Assets And Liabilities Carried At Fair Value Measured On A Recurring Basis | The following tables provide information regarding the financial assets and liabilities carried at fair value measured on a recurring basis as of September 30, 2012 and September 25, 2011:
|  | Total carrying value at September 30, 2012 |  |  | Quoted prices in active markets (Level 1) |  |  | Significant other observable inputs (Level 2) |  |  | Significant unobservable inputs (Level 3) |
|  | (Dollars in thousands) |
Investments in marketable securities |  | $ | 4,781 |  |  | $ | 4,781 |  |  | $ | — |  |  | $ | — |
Derivative assets |  |  | 447 |  |  |  | — |  |  |  | 447 |  |  |  | — |
Derivative liabilities |  |  | 957 |  |  |  | — |  |  |  | 957 |  |  |  | — |
Contingent consideration liabilities |  |  | 58,885 |  |  |  | — |  |  |  | — |  |  |  | 58,885 |
|  | Total carrying value at September 25, 2011 |  |  | Quoted prices in active markets (Level 1) |  |  | Significant other observable inputs (Level 2) |  |  | Significant unobservable inputs (Level 3) |
|  | (Dollars in thousands) |
Cash and cash equivalents |  | $ | 45,004 |  |  | $ | 45,004 |  |  | $ | — |  |  | $ | — |
Investments in marketable securities |  |  | 3,762 |  |  |  | 3,762 |  |  |  | — |  |  |  | — |
Bonds — foreign government |  |  | 4,976 |  |  |  | — |  |  |  | 4,976 |  |  |  | — |
Derivative assets |  |  | 66 |  |  |  | — |  |  |  | 66 |  |  |  | — |
Derivative liabilities |  |  | 15,566 |  |  |  | — |  |  |  | 15,566 |  |  |  | — |
Contingent consideration liabilities |  |  | 9,566 |  |  |  | — |  |  |  | — |  |  |  | 9,566 |
Schedule Of Reconciliation Of Changes In Level 3 Financial Liabilities Measured At Fair Value On A Recurring Basis | The following table provides information regarding changes in Level 3 financial liabilities during the periods ended September 30, 2012 and September 25, 2011:
|  | Contingent consideration |
|  | 2012 |  |  | 2011 |
|  | (Dollars in thousands) |
Beginning balance |  | $ | 9,676 |  |  | $ | — |
Initial estimate upon acquisition |  |  | 55,773 |  |  |  | 15,400 |
Payment |  |  | (7,000 | ) |  |  | (6,000 | )
Revaluations |  |  | 461 |  |  |  | 166 |
Translation adjustment |  |  | (25 | ) |  |  | — |
Ending balance |  | $ | 58,885 |  |  | $ | 9,566 |
Schedule Of Fair Value Of Debt | determining the market interest yield curve. The following table provides the fair value of the Company’s debt by fair value hierarchy level as of September 30, 2012:
|  | Fair value of debt |
|  | (Dollars in thousands) |
Level 1 |  | $ | 773,404 |
Level 2 |  |  | 381,678 |
Total |  | $ | 1,155,082 |

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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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