LOW INCOME HOUSING PROJECT INVESTMENTS Low Income Housing Project Investments (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2017
Original Investment in Low Income Housing Projects		$ 128,752	$ 50,232	$ 96,275
Amortization Method Qualified Affordable Housing Project Investments		97,435		72,510	$ 33,681
Qualified Affordable Housing Project Investments, Commitment		49,586		$ 34,967	$ 3,935
Affordable Housing Tax Credits and Other Tax Benefits, Amount	$ 7,342	9,404	5,407
Amortization Method Qualified Affordable Housing Project Investments, Amortization	5,645	7,552	4,377
Income (Loss) from Affordable Housing Projects, Equity Method Investments	$ 1,696	$ 1,851	$ 1,030