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Restructuring Expenses (Details) (USD $)
 6 Months Ended 3 Months Ended 12 Months Ended 18 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Operating Lease [Member]
Jun. 30, 2014
Employee Costs [Member]
Jun. 30, 2014
Facility Closing [Member]
Jun. 30, 2014
Accrued Expenses [Member]
Jun. 30, 2014
Other non-current liabilities [Member]
Jun. 30, 2014
Operating Expense [Member]
Employee
Dec. 31, 2013
Operating Expense [Member]
Employee
Jun. 30, 2014
Operating Expense [Member]
Employee
Jun. 30, 2014
Selling, General and Administrative Expenses [Member]
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]                    
Number of positions eliminated             7 50 57  
Severance costs               $ 4,800,000    
Outstanding lease term       81 months            
Contractual Obligation       3,600,000            
Sub-lease revenue       2,600,000            
Contract termination costs related to sub-lease                   150,000
Leasehold improvements written off 50,000                  
Restructuring Reserve [Roll Forward]                    
Restructuring reserve balance   0 2,019,000   1,400,000 100,000        
Charges   855,000 722,000              
Restructuring expenses paid   0 (1,287,000)              
Restructuring reserve balance   $ 855,000 $ 1,454,000   $ 1,400,000 $ 100,000