MARKETABLE SECURITITES

6 Months Ended

Jun. 30, 2019

Marketable Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure

MARKETABLE SECURITIES:

Amortized cost and estimated fair market value of marketable securities classified as available-for-sale (excluding cash equivalents) at June 30, 2019, were as follows:

	Amortized Cost		Gross Unrealized					Estimated Fair Market Value
(In thousands)			Gains		Losses
Investments due in 3 months or less:
Corporate securities	$	46,726	$	12	$	(11	)	$	46,727
Total	46,726		12		(11		)	46,727
Investments due in 4-12 months:
Corporate securities	44,829		213		(2		)	45,040
Total	44,829		213		(2		)	45,040
Investments due in 12 months or greater:
Corporate securities	38,395		118		(5		)	38,508
Total	38,395		118		(5		)	38,508
Total marketable securities	$	129,950	$	343	$	(18	)	$	130,275

Amortized cost and estimated fair market value of marketable securities classified as available-for-sale (excluding cash equivalents) at December 31, 2018, were as follows:

	Amortized Cost		Gross Unrealized					Estimated Fair Market Value
(In thousands)			Gains		Losses
Investments due in 3 months or less:
Corporate securities	$	6,788	$	—	$	(2	)	$	6,786
Total	6,788		—		(2		)	6,786
Investments due in 4-12 months:
Corporate securities	60,123		—		(244		)	59,879
Total	60,123		—		(244		)	59,879
Investments due in 12 months or greater:
Corporate securities	27,806		2		(22		)	27,786
Total	27,806		2		(22		)	27,786
Total marketable securities	$	94,717	$	2	$	(268	)	$	94,451

As of June 30, 2019, and December 31, 2018, the Company evaluated the nature of the investments with a loss position, which were primarily high-quality corporate securities, and determined the unrealized losses were not other-than-temporary.