XML 66 R49.htm IDEA: XBRL DOCUMENT v3.2.0.727
SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Details) - Supplemental Executive Retirement Plan [Member]
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
participant
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
participant
Jun. 30, 2014
USD ($)
Defined Benefit Plan Disclosure [Line Items]        
Number of participants | participant 6   6  
Components of net periodic pension cost [Abstract]        
Service cost $ 319 $ 167 $ 548 $ 334
Interest cost 166 106 286 212
Amortization of prior service cost 436 146 678 292
Total net periodic benefit cost $ 921 $ 419 $ 1,512 $ 838