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OTHER INCOME AND LOSS
 6 Months Ended
Jun. 30, 2018
Other Income And Expenses [Abstract]  
OTHER INCOME AND LOSS

13. OTHER INCOME AND LOSS

The following table summarizes other income and loss for the periods indicated:

 

 

 

For the Three Months Ended

June 30,

 

 

For the Six Months Ended

June 30,

 

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

 

 

(in thousand)

 

Interest expense

 

$

(8,145

)

 

$

(265

)

 

$

(15,779

)

 

$

(523

)

Interest income

 

 

1,887

 

 

 

189

 

 

 

3,759

 

 

 

375

 

Amortization of investment discount

 

 

1,569

 

 

 

160

 

 

 

2,828

 

 

 

260

 

Other (expense) income

 

 

(529

)

 

 

100

 

 

 

(511

)

 

 

407

 

Gain from sale of Priority Review Voucher

 

 

—

 

 

 

—

 

 

 

—

 

 

 

125,000

 

Total other (loss) income

 

$

(5,218

)

 

$

184

 

 

$

(9,703

)

 

$

125,519