Cash and Cash Equivalents and Investments in Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2015

Cash And Cash Equivalents And Investments In Marketable Securities [Abstract]

The following is a summary of our marketable securities:



	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value (Net Carrying Amount)
	(In thousands)
March 31, 2015
Certificates of deposit	$	27,000	$	4	$	—		$	27,004
Commercial paper	46,375		16		(3		)	46,388
Corporate debt securities	112,175		12		(47		)	112,140
State and political subdivisions debt securities	229,039		11		(75		)	228,975
Total marketable securities	$	414,589	$	43	$	(125	)	$	414,507

December 31, 2014
Certificates of deposit	$	54,000	$	10	$	—		$	54,010
Commercial paper	52,297		7		(4		)	52,300
Corporate debt securities	136,181		1		(94		)	136,088
State and political subdivisions debt securities	231,819		5		(112		)	231,712
Total marketable securities	$	474,297	$	23	$	(210	)	$	474,110

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References+ Details