Investments (Tables)

3 Months Ended

Mar. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule Of Amortized Costs And Fair Value

The following table summarizes, by major security type, the amortized costs and fair value of the Company’s investments: 

	March 31, 2013							December 31, 2012
(In thousands)	Cost Basis(1)		Fair Value		Net unrealized gain (loss) in AOCI			Cost Basis(1)		Fair Value		Net unrealized gain (loss) in AOCI
Pre-refunded and municipal bonds	$	15,048	$	14,816	$	(232	)	$	15,047	$	14,877	$	(170	)
Short-term bond mutual funds	14,016		14,178		162			17,014		17,196		182
Certificates of deposit	1,659		1,659		—			1,779		1,779		—
Other investment	362		362		—			362		362		—
Total investments	$	31,085	$	31,015	$	(70	)	$	34,202	$	34,214	$	12

(1) The cost basis represents the actual amount paid or the basis assumed following a permanent impairment of that asset.

Schedule Of Gains And Losses

(In thousands)	March 31, 2013		March 31, 2012
Net proceeds	$	7,570	$	13,392
Realized Gains	$	38	$	340