LEASES - Maturity of Lease Liabilities, Lessee (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Operating Leases
2019 (excluding three months ended March 31, 2019)	$ 61,234
2020	58,772
2021	39,367
2022	29,231
2023	14,302
Thereafter	20,022
Total lease payments	222,928
Less: Imputed Interest	(16,152)
Present value of lease liabilities	206,776	$ 210,806
Finance Leases
2019	10,527
2020	10,523
2021	8,790
2022	6,112
2023	3,786
Thereafter	13,688
Total lease payments	53,426
Less: Imputed Interest	(9,724)
Present value of lease liabilities	43,702
Total
2019 (excluding three months ended March 31, 2019)	71,761
2020	69,295
2021	48,157
2022	35,343
2023	18,088
Thereafter	33,710
Total lease payments	276,354
Less: Imputed Interest	(25,876)
Present value of lease liabilities	$ 250,478	$ 258,258