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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Target Payout, If Circumstances Met

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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Target Payout, Performance Percentage

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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Fair Value

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Share based compensation arrangement by share based payment award grant target performance percentage.

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Share Based Compensation Arrangement By Share Based Payment Award Minimum Employee Subscription Rate

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- Definition

Share based compensation arrangement by share based payment award number of shares available for future issuance.

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Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Total Awards Granted To Participants In Plan

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Share based compensation arrangement by share based payment award reduced number of shares available for issuance.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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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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Discount rate from fair value on offering date that participants pay for shares.

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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

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

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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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

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Net number of share options (or share units) granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Jun. 27, 2020	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Dec. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance for each share issued		2
Share-based compensation expense		$ 17.2	$ 17.5	$ 22.7
Income tax benefit recognized related to share-based compensation		$ 3.4	2.2	0.8
Share-based compensation award vesting period		3 years
Closing price of common shares (in USD per share)					$ 15.54	$ 17.63	$ 15.68
Cash received from exercise of stock options		$ 0.8	23.8	2.0
Tax benefit realized on exercise of stock option		0.0	1.3	0.1
Fair value of options that vested		8.3	16.7	15.8
Performance-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 6.5	$ 7.4	$ 7.8
Share-based compensation award vesting period		3 years
Granted (in shares)		529,000	484,000	458,000
Aggregate grant date fair value of shares vested		$ 4.7	$ 8.1	$ 14.1
Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 8.4	5.5	4.9
Percentage of total awards granted to participants in plan		40.00%
Fair value of options that vested		$ 6.6	$ 3.9	$ 5.1
Granted (in shares)		413,000	665,000	542,000
Fist Anniversary, Date of Grant \| Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Second Anniversary, Date of Grant \| Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Third Anniversary, Date of Grant \| Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Minimum \| Performance-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of performance awards granted		0.00%
Minimum \| Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting period		2 years
Maximum \| Performance-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of performance awards granted		200.00%
Maximum \| Time-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting period		3 years
Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)		20,000,000
Shares available for future issuance		493,000
Share-based compensation expense				$ 2.9
Share-based compensation, liability				2.9
Expense associated with modification				$ 5.9
Equity Plan \| Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Bonus aggregate target payout, if circumstances met	$ 2.4
Bonus aggregate target payout, performance percentage	122.00%
Granted (in shares)		76,480,000
Granted, fair value		$ 1.2
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)		8,000,000
Shares available for future issuance		2,242,000
Stock Option Plan \| Certain employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		0	18,000	1,053,600
Granted (in USD per share)			$ 17.79	$ 15.48
Granted, estimated fair value (in USD per share)			$ 5.47	$ 4.63
Stock Option Plan \| Certain employee \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting period		10 years
Stock Option Plan, Awards Granted In 2021 And Thereafter \| Performance-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total awards granted to participants in plan		60.00%
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)		2,215,838
Share-based compensation expense		$ 0.3	$ 0.3	$ 0.3
Share based payment award number of shares authorized		3,000,000
Share based payment award offering price percentage		90.00%
Payroll deduction to purchase share, Minimum		1.00%
Payroll deduction to purchase share, Maximum		15.00%