Deferred Compensation, Trading Days

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- Definition

Share based compensation arrangement by share based payment award award shares holding requirement percentage.

+ References

No definition available.

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- Definition

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

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- Definition

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

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 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 non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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 estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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- Definition

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

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Number of shares issued under share-based payment arrangement.

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

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Percentage of vesting of award under share-based payment arrangement.

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Expected term of 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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Share-Based Employee Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2025	Sep. 28, 2025	Sep. 29, 2024	Oct. 01, 2023	Oct. 02, 2022
Del Taco
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					1 year
Nonvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Awards outstanding (in shares)		543,552	381,738
Total unrecognized compensation cost related to stock options granted		$ 12.3
Weighted-average period for unrecognized compensation cost, (in years)		1 year 10 months 24 days
Weighted-average grant-date fair value (in usd per share)		$ 38.04	$ 67.74	$ 68.56
Total fair value of awards vested		$ 10.4	$ 8.0	$ 4.6
Modified restricted stock units vested in period (in shares)		146,379
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Total unrecognized compensation cost related to stock options granted		$ 0.0
Option grants contractual term		7 years
Total intrinsic value of stock options exercised		$ 0.0		$ 0.1
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years	3 years
Awards outstanding (in shares)		168,339	145,167
Total unrecognized compensation cost related to stock options granted		$ 2.5
Weighted-average period for unrecognized compensation cost, (in years)		2 years 9 months 18 days
Weighted-average grant-date fair value (in usd per share)		$ 37.11	$ 70.19	$ 65.74
Total fair value of awards vested		$ 0.9	$ 2.7	$ 1.8
Modified restricted stock units vested in period (in shares)		39,789
Volatility assumption	42.13%
Risk-free interest rate	3.62%
Dividends yield	0.00%
Fair value assumptions, expected term	3 years
Share price (in dollars per share)	$ 32.16
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to stock options granted		$ 0.0
Total fair value of awards vested				$ 0.4
Deferred Compensation for Non Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards outstanding (in shares)		94,834	91,885
Number of trading days		10 days
Shares issued in connection with director retirement (in shares)		765	765	765
Minimum \| Nonvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units vested, percentage		50.00%
Minimum \| Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards vesting rights, percentage	0.00%	0.00%
Maximum \| Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards vesting rights, percentage	200.00%	150.00%
Executive Officers \| Nonvested restricted stock units \| Share-Based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Awards outstanding (in shares)		4,046
Executive Officers \| Nonvested restricted stock units \| Share-Based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Awards outstanding (in shares)		219,954,000
Non-Management Directors \| Nonvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		12 months
Awards outstanding (in shares)		84,801
Management \| Nonvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Awards outstanding (in shares)		234,751
Two Thousand Four Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized (in shares)		11,600,000
Common stock available for future issuance (in shares)		972,739
Deferred Compensation Plan for Non-Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized (in shares)		350,000
Common stock available for future issuance (in shares)		105,811
2023 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized (in shares)		2,500,000