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EQUITY AND LONG-TERM INCENTIVE COMPENSATION - Long Term Incentive Compensation (Details) - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
	May 10, 2019	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Performance Shares
Stock-based Compensation
Award vesting period (years)				3 years
RSU
Stock-based Compensation
Award vesting period (years)				3 years
Restricted stock shares, restricted stock units, and stock options
Stock-based Compensation
Compensation expense		$ 3.3	$ 4.2	$ 6.8	$ 8.1
Related tax benefit		$ 0.8	$ 1.1	$ 1.7	$ 2.1
Director | RSU
Stock-based Compensation
Granted (in shares)	23

X

- Definition

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

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

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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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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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