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Equity-Based Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
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Sep. 29, 2012
Outside Directors Member |
Equity Based Compensation [Line Items] |
Stock option vesting period | 1 year
Key Employees Member |
Equity Based Compensation [Line Items] |
Stock option vesting period | 5 years
Officers And Key Employees Member |
Equity Based Compensation [Line Items] |
Stock option vesting period | 3 years
1998 Stock Option Plan [Member] |
Equity Based Compensation [Line Items] |
Shares authorized for the issuance | 2,025,000
2003 Stock Option Plan [Member] |
Equity Based Compensation [Line Items] |
Shares authorized for the issuance | 1,350,000
2008 Stock Appreciation Rights Plan [Member] |
Equity Based Compensation [Line Items] |
Shares authorized for the issuance | 2,000,000
Stock option term in years, max | 10
Stock Options [Member] |
Equity Based Compensation [Line Items] |
Stock option term in years, max | 10
Unvested compensation expense | 925
Unvested compensation expense weighted-average period of recognition, in years | 3 years
Stock Appreciation Rights (SARs) [Member] |
Equity Based Compensation [Line Items] |
Unvested compensation expense | 3,509
Unvested compensation expense weighted-average period of recognition, in years | 2 years
Class A Common Stock [Member] |
Equity Based Compensation [Line Items] |
Closing price of common stock | 37.87

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- Definition Closing price of common stock. + References No definition available. + Details
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- Details
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- Definition Share based compensation arrangement term of awards granted. + References No definition available. + Details
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- Definition As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph h -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 Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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