DESCRIPTION OF BUSINESS AND PRINCIPLES OF INTERIM STATEMENTS - Recently Issued Accounting Standards - General Information (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2019
Commercial loans | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Current expected credit losses reserve	$ 252