XML 39 R23.htm IDEA: XBRL DOCUMENT v3.3.1.900
Fair value measurements (Tables)
12 Months Ended
Dec. 31, 2015
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring Basis
The Company’s assets that are measured at fair value on a recurring basis, by level, within the fair value hierarchy are summarized as follows:
 
 
December 31, 2015
 
December 31, 2014
(in thousands)
 
Level 1
 
Level 2
 
Total
 
Level 1
 
Level 2
 
Total
Cash equivalents (1):
 
 
 
 
 
 
 
 
 
 
 
 
Money market funds
 
$
51,059

 
$

 
$
51,059

 
$
80,968

 
$

 
$
80,968

Corporate debt securities
 

 

 

 

 
2,000

 
2,000

Total cash equivalents
 
$
51,059

 
$

 
$
51,059

 
$
80,968

 
$
2,000

 
$
82,968

Marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
U.S. treasury securities
 
$

 
$

 
$

 
$
1,994

 
$

 
$
1,994

U.S. agency securities
 

 
14,451

 
14,451

 

 
7,020

 
7,020

Commercial paper
 

 
2,197

 
2,197

 

 
2,497

 
2,497

Corporate debt securities
 

 
165,825

 
165,825

 

 
90,816

 
90,816

Municipal securities
 

 
11,913

 
11,913

 

 

 

Total marketable securities
 
$

 
$
194,386

 
$
194,386

 
$
1,994

 
$
100,333

 
$
102,327

(1) Included in “cash and cash equivalents” in the accompanying consolidated balance sheets as of December 31, 2015 and 2014. Cash balances were $228.6 million and $237.0 million as of December 31, 2015 and 2014, respectively.
Available-for-sale Securities
available-for-sale marketable securities as of the period-ends noted, are as follows:
 
 
December 31,
(in thousands)
 
2015
 
2014
Less than one year
 
$
122,199

 
$
58,764

Greater than one year but less than two years
 
72,187

 
43,563

Total
 
$
194,386

 
$
102,327