Employee Stock Purchase Plan (ESPP), Weighted Average Purchase Price Of Shares Purchased

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- Definition

Maximum Discounted Purchase Price Of Common Stock As A Percent Of Fair Market Value

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- Definition

Performance period for Performance shares

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Performance targets for performance shares

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

Description of terms of award under share-based payment arrangement.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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Equity-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017	Jan. 07, 2015
Share-based Compensation Arrangement by Share-based Payment Award
Shares issued, employee stock purchase plan	79,928	53,587
ESPP, weighted average price per share	$ 65.91	$ 65.55
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Maximum discounted purchase price of common stock as a percent of fair market value	85.00%
2014 Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares authorized for the issuance				2,000,000
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Closing price of common stock	$ 81.71
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Closing price of common stock	$ 86.60
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award
Unvested compensation expense	$ 2,832
Total fair value of awards vested	$ 2,871	$ 3,282	$ 4,044
Unvested compensation expense weighted-average period of recognition, in years	2 years
Award terms	10 years
Performance shares cliff vesting schedule	3 years
Performance-based Restricted Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Unvested compensation expense	$ 2,798
Granted in Period	36,415
Weighted Average Grant Date Fair Value, Granted	$ 80.19
Unvested compensation expense weighted-average period of recognition, in years	2 years
Performance period for PSUs	3 years
Performance shares cliff vesting schedule	3 years
STIs, Vested	31,601
Weighted Average Grant Date Fair Value, Vested	$ 71.65
Performance-based Restricted Stock Units (PSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Performance targets for performance based units	0.00%
Performance-based Restricted Stock Units (PSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Performance targets for performance based units	200.00%
Performance-based Restricted Stock Units (PSUs) \| Class A and Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Common stock issued for awards granted in 2016	28,700
Restricted Stock Awards (RSAs)
Share-based Compensation Arrangement by Share-based Payment Award
Granted in Period	5,988
Weighted Average Grant Date Fair Value, Granted	$ 80.19
Total fair value of awards vested	$ 480
STIs, Vested	5,988
Weighted Average Grant Date Fair Value, Vested	$ 80.19
Short Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Granted in Period	42,795
Weighted Average Grant Date Fair Value, Granted	$ 84.00
Total fair value of awards vested	$ 3,595