XML 64 R53.htm IDEA: XBRL DOCUMENT v3.4.0.3
Stock-Based Compensation (Deferred Stock Units) (Details) - Deferred Stock Units
3 Months Ended
Mar. 31, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Non-vested awards outstanding beginning balance (shares) 23,950
Awards granted (shares) 0
Stock issued (shares) (1,650)
Non-vested awards outstanding ending balance (shares) 22,300