Stock Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 28, 2019 USD ($) $ / shares shares	Jun. 28, 2019 USD ($) $ / shares shares
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted \| shares		413,636
Weighted average grant-date fair value \| $ / shares		$ 18.53
Shares outstanding \| shares	985,258	985,258
Nonvested weighted average grant-date fair value \| $ / shares	$ 17.38	$ 17.38
Compensation expense \| $	$ 12.4	$ 12.4
Weighted average period		2 years 4 months 24 days
Common Stock Subject to Vesting Requirements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted \| shares	21,276
Weighted average grant-date fair value \| $ / shares	$ 15.29
Shares outstanding \| shares	109,293	109,293
Nonvested weighted average grant-date fair value \| $ / shares	$ 18.94	$ 18.94
Compensation expense \| $	$ 1.8	$ 1.8
Weighted average period		2 years

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.

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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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).

+ References

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-Publisher FASB
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-Paragraph 2
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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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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No definition available.

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