EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Payment Made for Employee Benefit Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Employee Benefits and Share-based Compensation, Noncash [Abstract]
401(K) Plan	$ 3,505	$ 3,263	$ 3,120
ESOP	1,255	1,425	1,146
Cash	1,461	1,496	1,146
Total	$ 6,221	$ 6,184	$ 5,412

This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

Name:	us-gaap_EmployeeStockOwnershipPlanESOPCashContributionsToESOP
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration