COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments for Operating Leases

The following is a summary of future minimum payments under operating leases that have initial or remaining non-cancelable lease terms in excess of one year at December 31, 2017 (in thousands):

Year	Total Operating Leases
2018	$	44,476
2019	37,161
2020	30,233
2021	22,173
2022	17,432
Thereafter	45,370
Total minimum lease payments	$	196,845

Self-Insurance Liabilities Anticipated Payments

Anticipated payments for contingencies related to workers' compensation, comprehensive general liability and vehicle liability related claims at December 31, 2017 for each of the next five years and thereafter were as follows (in thousands):

Years ending December 31,
2018	$	16,525
2019	11,259
2020	7,848
2021	4,393
2022	3,688
Thereafter	5,769
Undiscounted self-insurance liabilities	49,482
Less: Discount	1,568
Total self-insurance liabilities (included in accrued expenses)	$	47,914