Summary of Critical and Significant Accounting Policies (Share-Based Compensation) (Details) |
12 Months Ended |
---|---|
Dec. 31, 2015 | |
Minimum | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Award requisite service period | 2 years |
Maximum | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Award requisite service period | 4 years |