OTHER ASSETS (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 36,800	$ 35,800	$ 112,600	$ 110,000
Sublease income	700	1,100	3,300	3,000
Operating cash flows from operating leases			105,497	98,110
Operating lease ROU assets	576,691		576,691		$ 656,472
Present value of lease liabilities	638,192		638,192
Parent Company
Lessee, Lease, Description [Line Items]
Operating cash flows from operating leases			3,000	2,900
Operating lease ROU assets	9,800	14,200	9,800	14,200
Present value of lease liabilities	$ 9,800	$ 14,200	$ 9,800	$ 14,200
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	5 years		5 years