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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended
	Mar. 31, 2019	Apr. 01, 2018
Revenue, Major Customer [Line Items]
Effective income tax rate reconciliation, percent	22.80%	22.10%
Sales Revenue, Net | Credit Concentration Risk | Maryland
Revenue, Major Customer [Line Items]
Concentration risk, percentage	11.00%	12.00%
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	29.00%	28.00%
Minimum
Revenue, Major Customer [Line Items]
Lessee, Operating Lease, Renewal Term	3 years
Maximum
Revenue, Major Customer [Line Items]
Lessee, Operating Lease, Renewal Term	10 years

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