| Accrued Expenses and Other Current Liabilities | 12 Months Ended | 
|---|---|
| Dec. 31, 2015 | |
| Accrued Expenses and Other Liabilities [Abstract] | |
| Accrued Expenses and Other Liabilities | (8) Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consist primarily of accrued compensation and benefits of approximately $19.2 million and $16.7 million as of December 31, 2015 and 2014, respectively.  The accrued compensation and benefits amounts include bonus, salaries and related payroll taxes, vacation and deferred compensation. | 
| X | ||||||||||
| 
- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- References No definition available. 
 |