Summary of Significant Accounting Policies- Use of Estimates (Details)  | 
3 Months Ended | 
|---|---|
| 
 Mar. 31, 2016  
$ / participant 
 | |
| Accounting Policies [Abstract] | |
| Maximum exposure per participant | 100,000 | 
| X | ||||||||||
- Definition Loss Contingency, Self Insurance, Maximum Exposure, Per Participant No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
  |