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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Revenue, Major Customer [Line Items]
Effective income tax rate reconciliation, percent	22.80%	11.40%	22.80%	15.20%
Sales Revenue, Net | Credit Concentration Risk | Maryland
Revenue, Major Customer [Line Items]
Concentration risk, percentage			11.00%	11.00%
Sales Revenue, Net | Credit Concentration Risk | Tennessee
Revenue, Major Customer [Line Items]
Concentration risk, percentage			16.00%	14.00%
Sales Revenue, Net | Credit Concentration Risk | Texas
Revenue, Major Customer [Line Items]
Concentration risk, percentage			30.00%	29.00%
Minimum
Revenue, Major Customer [Line Items]
Lessee, Operating Lease, Renewal Term	3 years		3 years
Maximum
Revenue, Major Customer [Line Items]
Lessee, Operating Lease, Renewal Term	10 years		10 years

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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