Period of performance under the deferred compensation arrangement.

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Represents the percentage of the original grant (target number) of performance share awards that will be earned and vested.

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No definition available.

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Represents the percentage of the original grant (target number) of performance share units that will be earned and vested.

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The ratio of shares of common stock issued for each vested equity-based payment instrument, excluding stock (or unit) options.

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

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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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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No definition available.

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

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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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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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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

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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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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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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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No definition available.

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Stock-Based Compensation - Performance Share Units and Performance Share Awards (Details) $ / shares in Units, $ in Thousands				12 Months Ended
	Jan. 01, 2021 $ / shares shares	Jan. 01, 2020 $ / shares shares	Jan. 01, 2019	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Stock-based compensation
Stock-based compensation expense \| $				$ 10,300	$ 13,100	$ 10,000
Performance Share Units
Stock-based compensation
Ratio of common stock for each vested award				1
Number of Shares
Unvested as of beginning of period (in shares)	857,282	695,316		942,506	857,282	695,316
Granted (in shares)				350,922	376,810	340,758
Vested (in shares)				(203,855)	(214,163)	(172,167)
Forfeited (in shares)				(135,439)	(77,423)	(6,625)
Unvested as of end of period (in shares)				954,134	942,506	857,282
Weighted Average Grant Date Fair Value
Unvested as of beginning of period (in dollars per share) \| $ / shares	$ 25.43	$ 26.46		$ 26.70	$ 25.43	$ 26.46
Granted (in dollars per share) \| $ / shares				28.57	27.07	25.96
Vested (in dollars per share) \| $ / shares				27.02	22.57	29.95
Forfeited (in dollars per share) \| $ / shares				26.63	24.62	26.13
Unvested as of end of period (in dollars per share) \| $ / shares				$ 27.36	$ 26.70	$ 25.43
Stock-based compensation
Unrecognized compensation expense \| $				$ 7,300	$ 6,100	$ 6,200
Period for recognition of unrecognized compensation expense				1 year 2 months 12 days
Total fair value of vested shares (in dollars) \| $				$ 5,500	$ 4,800	$ 5,200
Performance Share Units \| Key employees
Number of Shares
Granted (in shares)				350,922	376,810	340,758
Minimum
Stock-based compensation
Performance achieved, percentage of PSUs earned and vested				0
Performance achieved, percentage of PSAs earned and vested				0
Maximum
Stock-based compensation
Performance achieved, percentage of PSUs earned and vested				200
Performance achieved, percentage of PSAs earned and vested				200
LongTerm Incentive Plan
Stock-based compensation
Performance period	3 years	3 years	3 years	3 years