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LOANS - Schedule of Industry and Rate Sensitivity (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | $ 2,074,475 | $ 2,239,930
Computer Programming, Data Processing & Other Computer Related Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 375,103 | 483,142
Management & Public Relations Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 291,581 | 300,869
Industrial Inorganic Chemicals |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 156,782 | 156,391
Public Warehousing & Storage |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 120,473 | 132,397
Metal Cans & Shipping Containers |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 115,907 | 115,670
Surgical, Medical & Dental Instruments & Supplies |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 82,831 | 83,161
Electronic Components & Accessories |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 78,257 | 78,129
Engineering, Architectural, and Surveying |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 77,156 | 77,308
Offices & Clinics of Doctors of Medicine |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 74,481 | 104,781
Miscellaneous Health & Allied Services, not elsewhere classified |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 70,295 | 77,163
Insurance Agents, Brokers and Service |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 65,624 | 67,193
Research, Development & Testing Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 62,218 | 62,008
Miscellaneous Food Preparations |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 59,009 | 58,857
Telephone Communications |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 58,694 | 58,450
Miscellaneous Equipment Rental & Leasing |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 49,641 | 49,587
Electric Work |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 40,390 | 41,128
Petroleum and Petroleum Products |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 33,836 | 33,890
Medical & Dental Laboratories |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 30,763 | 30,711
Schools & Educational Services, not elsewhere classified |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 29,183 | 29,040
Home Health Care Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 28,669 | 28,587
Metal Forgings & Stampings |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 27,689 | 27,523
Legal Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 26,358 | 26,399
Grocery Stores |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 22,906 | 22,895
Coating, Engraving and Allied Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 19,500 | 19,484
Miscellaneous Business Services |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 14,996 | 12,980
Chemicals & Allied Products |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 14,667 | 14,686
Mailing, Reproduction, Commercial Art and Photography and Stenographic |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 12,917 | 12,733
Drugs |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 12,622 | 12,942
Machinery, Equipment & Supplies |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | 11,839 | 12,096
Offices and Clinics of Other Health Practitioners |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Corporate debt | $ 10,088 | $ 9,730

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