MARKETABLE SECURITIES

12 Months Ended

Dec. 31, 2015

MARKETABLE SECURITIES

MARKETABLE SECURITIES

(5) MARKETABLE SECURITIES

        A summary of marketable securities is shown below:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(In thousands)
December 31, 2014
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	44,580	$	30	$	(6	)	$	44,604
Maturing after one year through three years		16,108		49		(1	)		16,156
Total U.S. government and municipal obligations	$	60,688	$	79	$	(7	)	$	60,760
Corporate debt securities
Maturing in one year or less	$	89,636		6	$	(37	)	$	89,605
Maturing after one year through three years		22,690		3		(35	)		22,658
Total corporate debt securities	$	112,326	$	9	$	(72	)	$	112,263
Total marketable securities	$	173,014	$	88	$	(79	)	$	173,023
December 31, 2015
Marketable securities
U.S. government and municipal obligations
Maturing in one year or less	$	48,871	$	4	$	(20	)	$	48,855
Maturing after one year through three years		15,940		24		(57	)		15,907
Total U.S. government and municipal obligations	$	64,811	$	28	$	(77	)	$	64,762
Corporate debt securities
Maturing in one year or less	$	129,327	$	2	$	(141	)	$	129,188
Maturing after one year through three years		23,932		1		(102	)		23,831
Total corporate debt securities	$	153,259	$	3	$	(243	)	$	153,019
Total marketable securities	$	218,070	$	31	$	(320	)	$	217,781

        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 December 31, 2015. Marketable securities include $1.5 million and $1.4 million in accrued interest at December 31, 2015 and December 31, 2014, respectively.