Earnings Per Share (Narrative) (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Restricted Stock [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Shares excluded from diluted net income per share | 37,048 | ||
| Employee Stock Option [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Shares excluded from diluted net income per share | 21,211 | 87,435 | 184,201 |