SHARE-BASED COMPENSATION - Performance Units (Details) - Performance Shares - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016
SHARE-BASED COMPENSATION
Granted (in shares)	343,886		452,922
Vesting period	3 years		3 years
Grant date fair value (in dollars)	$ 13.4		$ 11.8
Valuation Assumptions:
Weighted-average fair value (in dollars per share)	$ 39.10	$ 25.99
Expected volatility (as a percent)	48.60%	42.50%
Risk-free rate (as a percent)	1.50%	1.00%
Weighted-average expected annual forfeiture (as a percent)	3.60%	3.60%
Minimum
SHARE-BASED COMPENSATION
Number of awards to be granted depending on the Company's TSR relative to the TSR of the S&P Mid-Cap 400 Index (as a percent)	0.00%		0.00%
Maximum
SHARE-BASED COMPENSATION
Number of awards to be granted depending on the Company's TSR relative to the TSR of the S&P Mid-Cap 400 Index (as a percent)	200.00%		200.00%

Expected forfeiture rate assumption used in valuing an instrument.

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- Definition

Represents the aggregate grant date value of shares granted during the period.

+ References

No definition available.

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- Definition

Represents the percentage of awards granted depending on the Company's Total Shareholder Return ("TSR") relative to the TSR of the S&P Mid-Cap 400 Index.

+ References

No definition available.

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Risk-free interest rate assumption used in valuing an instrument.

+ References

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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