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Accrued and Other Current Liabilities (Tables)
 9 Months Ended
Sep. 30, 2018
Payables And Accruals [Abstract]  
Schedule of Accrued and Other Current Liabilities

 

 

December 31,

 

 

September 30,

 

 

2017

 

 

2018

 

 

(In thousands)

 

Employee benefits

$

8,269

 

 

$

7,955

 

Litigation settlement

 

-

 

 

 

60,000

 

Other

 

1,438

 

 

 

2,095

 

 

 

 

 

 

 

 

 

Total

$

9,707

 

 

$

70,050