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Restructuring Charges (Tables)
 12 Months Ended
Dec. 31, 2017
Restructuring And Related Activities [Abstract]  
Summary of Components of Restructuring Activity

The following table summarizes the components of the Company’s restructuring activity recorded in the accompanying balance sheet (in thousands):

 

 

 

Amounts accrued at December 31, 2016

 

 

Expense incurred during the year ended December 31, 2017

 

 

Amounts paid during the year ended December 31, 2017

 

 

Amounts accrued at December 31, 2017

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Employee severance, benefits and related costs

 

$

—

 

 

$

412

 

 

$

(340

)

 

$

72

 

Obligations under manufacturing and development contracts

 

 

—

 

 

 

296

 

 

 

(13

)

 

 

283

 

 

 

$

—

 

 

$

708

 

 

$

(353

)

 

$

355