ACCRUAL FOR TERMITE CONTRACTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of changes in the accrual for termite contracts
Beginning balance	$ 4,885	$ 4,800
Current year provision	2,392	3,611
Settlements, claims, and expenditures	(4,058)	(3,526)
Ending balance	3,219	4,885
Accrual for termite contracts, portion included in other current liabilities	2,200	2,900
Accrual for termite contracts, portion included in long-term accrued liabilities	$ 1,000	$ 2,000