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LOANS - Schedule of Industry and Rate Sensitivity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 1,890,709	$ 2,239,930
Computer Programming, Data Processing & Other Computer Related Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	435,210	483,142
Management & Public Relations Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	263,196	300,869
Industrial Inorganic Chemicals
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	156,483	156,391
Metal Cans & Shipping Containers
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	117,355	115,670
Public Warehousing & Storage
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	88,032	132,397
Surgical, Medical & Dental Instruments & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	81,160	83,161
Electronic Components & Accessories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	78,452	78,129
Offices & Clinics of Doctors of Medicine
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	61,243	104,781
Telephone Communications
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	58,881	58,450
Specialty Outpatient Facilities, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	48,109	0
Research, Development & Testing Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	45,546	62,008
Insurance Agents, Brokers and Service
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	43,827	67,193
Electric Work
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	42,635	41,128
Engineering, Architectural, and Surveying
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	39,275	77,308
Miscellaneous Industrial and Commercial
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	33,074	77,163
Miscellaneous Equipment Rental & Leasing
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	32,332	49,587
Medical & Dental Laboratories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	30,404	30,711
Schools & Educational Services, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	29,186	29,040
Home Health Care Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	28,726	28,587
Metal Forgings & Stampings
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	27,449	27,523
Legal Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	26,392	26,399
Petroleum and Petroleum Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	21,471	33,890
Grocery Stores
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	19,632	22,895
Coating, Engraving and Allied Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	18,458	19,484
Chemicals & Allied Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	14,689	14,686
Mailing, Reproduction, Commercial Art and Photography and Stenographic
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	12,311	12,733
Machinery, Equipment & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	11,370	12,096
Sanitary Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	10,743	0
Offices and Clinics of Other Health Practitioners
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	10,095	9,730
Miscellaneous Business Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	1,952	12,980
Drugs
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	1,756	12,942
Computer integrated systems design
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	1,265	0
Miscellaneous Food Preparations
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 0	$ 58,857

X

- Definition

For an unclassified balance sheet, this item represents firm holdings in fixed income or other debt securities issued by a corporation or other issuer not elsewhere specified in the taxonomy, which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity.

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