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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Measurements
The following table presents these instruments’ fair value at March 31, 2018:
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Assets:
 
 
 
 
 
 
 
Equity Securities
$
4,990

 
$
—

 
$
—

 
$
4,990


The following table presents these instruments’ fair value at December 31, 2017:
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Assets:
 
 
 
 
 
 
 
Equity Securities
$
5,452

 
$
—

 
$
—

 
$
5,452