XML 122 R108.htm IDEA: XBRL DOCUMENT v3.6.0.2
Retirement and Share-based Compensation Plans (Employee Stock Ownership Plan) (Details)
12 Months Ended
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
ESOP, requisite service period 6 months
ESOP, vesting percentage 100.00%
ESOP, vesting period 2 years