BORROWINGS, Contractual Maturity on Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Instruments [Abstract]
Carrying value	$ 344,873	$ 413,682
Weighted-average rate	1.65%
Weighted-average interest rate on borrowings during period	1.86%	1.72%
January 2, 2020 [Member]
Debt Instruments [Abstract]
Carrying value	$ 250,008
Weighted-average rate	0.82%
June 15, 2020 [Member]
Debt Instruments [Abstract]
Carrying value	$ 1,000
Weighted-average rate	1.75%
February 08, 2021 [Member]
Debt Instruments [Abstract]
Carrying value	$ 675
Weighted-average rate	1.45%
February 08, 2023 [Member]
Debt Instruments [Abstract]
Carrying value	$ 190
Weighted-average rate	1.79%
July 3, 2023 [Member]
Debt Instruments [Abstract]
Carrying value	$ 549
Weighted-average rate	2.25%
October 23, 2023 [Member]
Debt Instruments [Abstract]
Carrying value	$ 455
Weighted-average rate	1.50%
October 1, 2025 [Member]
Debt Instruments [Abstract]
Carrying value	$ 302
Weighted-average rate	1.50%
November18, 2025 [Member]
Debt Instruments [Abstract]
Carrying value	$ 10,467
Weighted-average rate	6.38%
February 28, 2028 [Member]
Debt Instruments [Abstract]
Carrying value	$ 3,328
Weighted-average rate	6.00%
March 1, 2029 [Member]
Debt Instruments [Abstract]
Carrying value	$ 579
Weighted-average rate	2.50%
December 15, 2036 [Member]
Debt Instruments [Abstract]
Carrying value	$ 77,320
Weighted-average rate	3.54%