Investments in Available-for-Sale Securities

9 Months Ended

Sep. 30, 2014

Available-for-sale Securities [Abstract]

Investments in Available-for-Sale Securities

Investments in Available-for-Sale Securities

The Company has invested in marketable debt securities, primarily highly liquid AA-rated corporate bonds and U.S. government and government agency securities. These investments are held in the custody of a major financial institution. These securities, along with the Company's investments in marketable equity securities, are classified as available-for-sale securities and, accordingly, the unrealized gains and losses are recorded through other comprehensive income.

The Company's investments in available-for-sale marketable securities are as follows:

	September 30, 2014
										Balance Sheet
			Accumulated							Classification
			Gross Unrealized					Fair		Short-Term		Other
	Cost Basis		Gains		Losses			Value		Investments		Assets
	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	—	$	—	$	—		$	—	$	—	$	—
Corporate notes and bonds	$	252,813	$	1	$	(3,747	)	$	249,067	$	249,067	$	—
Equity securities	5,420		10,257		(2,759		)	12,918		—		12,918
Total Investments	$	258,233	$	10,258	$	(6,506	)	$	261,985	$	249,067	$	12,918

	December 31, 2013
										Balance Sheet
			Gross		Gross					Classification
			Unrealized		Unrealized			Fair		Short-Term		Other
	Cost Basis		Gains		Losses			Value		Investments		Assets
	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	65,002	$	11	$	(75	)	$	64,938	$	64,938	$	—
Corporate notes and bonds	184,773		7		(1,304		)	183,476		183,476		—
Equity securities	5,271		13,660		(2,902		)	16,029		—		16,029
Total Investments	$	255,046	$	13,678	$	(4,281	)	$	264,443	$	248,414	$	16,029

The aggregate fair value of investments with unrealized losses that were owned for less than a year was $230.3 million and $164.3 million at September 30, 2014 and December 31, 2013, respectively. The aggregate fair value of investments with unrealized losses that were owned for over a year, and were also in a continuous unrealized loss position during that time, was $17.1 million and $48.7 million at September 30, 2014 and December 31, 2013, respectively.

The debt securities outstanding at September 30, 2014 have maturity dates ranging from the fourth quarter of 2014 through the fourth quarter of 2015. The Company classifies its investments as current based on the nature of the investments and their availability to provide cash for use in current operations.