XML 21 R11.htm IDEA: XBRL DOCUMENT v3.7.0.1
Marketable Securities
 3 Months Ended
Mar. 31, 2017
Marketable Securities  
Marketable Securities

 

(6) Marketable Securities

 

A summary of marketable securities is shown below:

 

 

 

Amortized
Cost

 

Gross
Unrealized
Gains

 

Gross
Unrealized
Losses

 

Fair
Value

 

 

 

(In thousands)

 

December 31, 2016

 

 

 

 

 

 

 

 

 

Marketable securities

 

 

 

 

 

 

 

 

 

U.S. government and municipal obligations

 

 

 

 

 

 

 

 

 

Maturing in one year or less

 

$
52,754

 

$
5

 

$
(12

)

$
52,747

 

Maturing after one year through three years

 
296

 
8

 

—

 
304

 

 

 

 

 

 

 

 

 

 

 

Total U.S. government and municipal obligations

 

$
53,050

 

$
13

 

$
(12

)

$
53,051

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

 

 

 

 

 

 

 

Maturing in one year or less

 

$
94,320

 

$

—

 

$
(56

)

$
94,264

 

Maturing after one year through three years

 

—

 

—

 

—

 

—

 

 

 

 

 

 

 

 

 

 

 

Total corporate debt securities

 

$
94,320

 

$

—

 

$
(56

)

$
94,264

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total marketable securities

 

$
147,370

 

$
13

 

$
(68

)

$
147,315

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31, 2017

 

 

 

 

 

 

 

 

 

Marketable securities

 

 

 

 

 

 

 

 

 

U.S. government and municipal obligations

 

 

 

 

 

 

 

 

 

Maturing in one year or less

 

$
35,515

 

$
2

 

$
(9

)

$
35,508

 

Maturing after one year through three years

 
153

 
6

 

—

 
159

 

 

 

 

 

 

 

 

 

 

 

Total U.S. government and municipal obligations

 

$
35,668

 

$
8

 

$
(9

)

$
35,667

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

 

 

 

 

 

 

 

Maturing in one year or less

 

$
83,864

 

$
4

 

$
(38

)

$
83,830

 

Maturing after one year through three years

 
5,028

 
3

 
(2

)
5,029

 

 

 

 

 

 

 

 

 

 

 

Total corporate debt securities

 

$
88,892

 

$
7

 

$
(40

)

$
88,859

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total marketable securities

 

$
124,560

 

$
15

 

$
(49

)

$
124,526

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The marketable securities held by the Company were high investment grade and there were no marketable securities that the Company considered to be other-than-temporarily impaired as of March 31, 2017. Marketable securities include $0.5 million and $0.6 million in accrued interest at March 31, 2017 and December 31, 2016, respectively.