|
Share-Based Compensation Plans Compensation Expense (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||
| Share-based compensation expense | $ 1,369 | $ 972 |