Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.3.1.900
Fair Value Measurements (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Nov. 19, 2015
Dec. 31, 2014
Fair Value Measurements      
The cash flow period from the acquisition date used in determining fair value 3 years    
Convertible Notes      
Fair Value Measurements      
Face amount $ 172,500   $ 172,500
Term Loan      
Fair Value Measurements      
Face amount   $ 160,000  
Recurring Basis      
Liabilities      
Total liabilities 303,018   180,392
Recurring Basis | Money market funds      
Assets      
Total Assets 24,422   70,760
Recurring Basis | Convertible Notes      
Liabilities      
Total liabilities 152,878   180,392
Recurring Basis | Term Loan      
Liabilities      
Total liabilities 150,000    
Recurring Basis | Foreign currency forward contracts      
Liabilities      
Total liabilities 140    
Level 1 | Recurring Basis      
Liabilities      
Total liabilities 302,878   180,392
Level 1 | Recurring Basis | Money market funds      
Assets      
Total Assets 24,422   70,760
Level 1 | Recurring Basis | Convertible Notes      
Liabilities      
Total liabilities 152,878   180,392
Level 1 | Recurring Basis | Term Loan      
Liabilities      
Total liabilities 150,000    
Level 2 | Recurring Basis      
Liabilities      
Total liabilities 140   0
Level 2 | Recurring Basis | Foreign currency forward contracts      
Liabilities      
Total liabilities 140    
Level 3 | Recurring Basis      
Liabilities      
Total liabilities 4,043   13,867
Level 3 | Recurring Basis | Convertible Notes      
Liabilities      
Total liabilities     13,867
Level 3 | Recurring Basis | Contingent consideration      
Liabilities      
Total liabilities 4,043    
Carrying Value | Convertible Notes      
Liabilities      
Total liabilities $ 150,133   $ 145,203