LEASES (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jan. 01, 2020
Lessee, Operating Lease, Details [Line Items]
Operating cash flows for operating leases	$ 9,662	$ 4,972
Financing cash flows for finance lease	1,443	1,307
Right-of-use assets obtained in exchange for operating lease liabilities (noncash)	99,197	$ 3,663
Lease remaining balance related to lease entered in December 2019 [Member] [Member] [Member]
Lessee, Operating Lease, Details [Line Items]
Lease liability remaining balance	71,400
Right-of-use asset remaining balance	70,700
Term of contract			10 years
Certain Operating Leases Entered Into During The Period [Member]
Lessee, Operating Lease, Details [Line Items]
Lease liability remaining balance	16,200
Right-of-use asset remaining balance	$ 16,200
Weighted-Average Remaining Lease Term [Member]
Lessee, Operating Lease, Details [Line Items]
Operating Lease, Weighted Average Remaining Lease Term	8 years 6 months
Weighted-Average Discount Rate [Member]
Lessee, Operating Lease, Details [Line Items]
Operating Lease, Weighted Average Discount Rate, Percent	3.19%
Maturity of Finance Lease Liability
Lessee, Operating Lease, Details [Line Items]
Remainder of 2020	$ 1,200
2021	4,500
2022	4,500
2023	4,500
2024	4,500
2025 and beyond	17,100
Total lease payments	36,300
Less: Interest	11,500
Present value of lease liabilities	24,800
Maturity of Operating Lease Liabilities
Lessee, Operating Lease, Details [Line Items]
Remainder of 2020	4,100
2021	16,400
2022	15,100
2023	13,800
2024	12,500
2025 and beyond	58,200
Total lease payments	120,100
Less: Interest	15,600
Lease liability remaining balance	$ 104,500