OFFSETTING ASSETS AND LIABILITIES - Offsetting Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017		Dec. 31, 2016
Offsetting of derivative assets
Gross amounts of recognized assets	$ 888		$ 5,018
Gross amounts offset in the balance sheet	0		0
Net amounts of assets presented in the balance sheet	888	[1]	5,018
Gross amounts not offset in the balance sheet
Financial instruments	0		0
Cash collateral received/(posted)	0		0
Net amount	$ 888		$ 5,018

[1] Includes amounts relating to consolidated variable interest entities. See Note 3.