SHARE-BASED COMPENSATION - MSUs (Details) - Market Share Units - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2016	Jan. 02, 2016
SHARE-BASED COMPENSATION
Granted (in shares)		105,245
Grant date fair value (in dollars)		$ 4.6
Valuation Assumptions:
Weighted-average fair value (in dollars per share)		$ 43.35
Expected volatility (as a percent)		43.20%
Weighted-average expected annual forfeiture (as a percent)		5.00%
Share-based Compensation Award, Tranche One
SHARE-BASED COMPENSATION
Vesting percentage		50.00%
Vesting period		2 years
Share-based Compensation Award, Tranche Two
SHARE-BASED COMPENSATION
Vesting percentage		50.00%
Vesting period		3 years
Minimum
SHARE-BASED COMPENSATION
Number of shares to be earned as a percentage of target amount	30.00%	30.00%
Valuation Assumptions:
Risk-free rate (as a percent)		1.10%
Maximum
SHARE-BASED COMPENSATION
Number of shares to be earned as a percentage of target amount	200.00%	200.00%
Valuation Assumptions:
Risk-free rate (as a percent)		1.70%

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 target shares, that a group of key executives can earn, under the plan.

+ 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.

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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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- 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://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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- Definition

Percentage of vesting of share-based compensation awards.

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