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LOANS - Schedule of Industry and Rate Sensitivity (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 2,185,264	$ 2,144,850
Computer Programming, Data Processing & Other Computer Related Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	406,827	394,193
Management & Public Relations Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	277,511	339,179
Industrial Inorganic Chemicals
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	147,622	0
Miscellaneous Business Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	122,279	164,033
Public Warehousing & Storage
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	116,967	107,029
Engineering, Architectural, and Surveying
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	110,926	124,201
Metal Cans & Shipping Containers
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	108,333	118,456
Offices & Clinics of Doctors of Medicine
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	104,000	106,993
Surgical, Medical & Dental Instruments & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	99,657	102,182
Electronic Components & Accessories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	77,788	24,000
Insurance Agents, Brokers and Service
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	70,978	75,410
Telephone Communications
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	57,482	61,210
Miscellaneous Health & Allied Services, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	52,177	78,908
Miscellaneous Equipment Rental & Leasing
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	49,505	49,776
Electric Work
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	40,642	43,175
Medical & Dental Laboratories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	35,231	41,344
Metal Forgings & Stampings
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	29,739	0
Research, Development & Testing Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	29,541	45,610
Home Health Care Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	28,896	29,361
Motor Vehicles and Motor Vehicle Parts & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	28,415	28,815
Legal Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	27,923	0
Petroleum and Petroleum Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	24,745	24,923
Grocery Stores
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	22,948	23,248
Coating, Engraving and Allied Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	20,298	47,249
Schools & Educational Services, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	19,331	19,586
Drugs
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	15,856	15,923
Chemicals & Allied Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	14,844	15,002
Machinery, Equipment & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	12,419	0
Mailing, Reproduction, Commercial Art and Photography and Stenographic
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	12,356	14,755
Offices and Clinics of Other Health Practitioners
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	10,091	10,098
Miscellaneous Plastic Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	9,937	10,000
Nonferrous Foundries (Castings)
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 0	$ 30,191

X

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