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Restructuring and Related Charges - Liability for lease (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Schedule of restructuring liability      
Beginning balance $ 20,055 $ 27,283  
Adjustments (1,695) 265  
Payments (4,434) (5,040)  
Ending balance 13,926 $ 22,508  
Accounts payable and accrued expenses      
Schedule of restructuring liability      
Restructuring liabilities $ 5,000   $ 4,800