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Restructuring Expenses (Tables)
12 Months Ended
Dec. 31, 2014
Restructuring Expenses [Abstract]  
Schedule of restructuring and related costs
As of December 31, 2014, the total remaining lease restructuring liability for its leased office space at 810 Seventh Ave was approximately $1.3 million, of which approximately $0.3 million and $1.0 million were included in Accrued expenses and Other non-current liabilities on the Consolidated Balance Sheets, respectively.

(in thousands)
 
Employee Costs
  
Operating Lease
 
Reserve balance as of December 31, 2013
 
$
2,019
  
$
 
Charges
  
1,324
   
1,557
 
Payments / utilizations
  
(2,519
)
  
(275
)
Reserve balance as of December 31, 2014
 
$
824
  
$
1,282