Investments (Tables)

9 Months Ended

Sep. 30, 2011

Investments, Debt and Equity Securities [Abstract]

Amortized Cost and Fair Value of Investments

The amortized cost and fair value of these investments were as follows (in thousands):

	September 30, 2011						December 31, 2010
	Cost or Amortized Cost		Net Unrealized Gain (Loss)		Fair Value		Cost or Amortized Cost		Net Unrealized Gain (Loss)			Fair Value
Debt	$	7,150	$	50	$	7,200	$	7,150	$	(450	)	$	6,700
Equity(1)		2,000		500		2,500		2,000		(100	)		1,900
Total	$	9,150	$	550	$	9,700	$	9,150	$	(550	)	$	8,600

(1)  As of September 30, 2011 and December 31, 2010, cost and fair value of the two preferred stock investments were $0.

Changes in Fair Value of Investments

The changes in fair value of the investments were recorded as follows (in thousands):

	Quarters Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011		2010
Debt Securities
Fair value at beginning of period	$	6,900		$	10,500		$	6,700	$	10,900
Temporary impairment credits (charges), net		300			250			500		(150	)
Other-than-temporary impairment charges		—			(850	)		—		(850	)
Sale of security		—			(3,400	)		—		(3,400	)
Net change in fair value		300			(4,000	)		500		(4,400	)
Fair value at end of period	$	7,200		$	6,500		$	7,200	$	6,500
Equity Securities
Fair value at beginning of period	$	2,800		$	2,100		$	1,900	$	2,200
Temporary impairment credits (charges), net		(300	)		—			600		(100	)
Net change in fair value		(300	)		—			600		(100	)
Fair value at end of period	$	2,500		$	2,100		$	2,500	$	2,100
Total
Fair value at beginning of period	$	9,700		$	12,600		$	8,600	$	13,100
Temporary impairment credits (charges), net		—			250			1,100		(250	)
Other-than-temporary impairment charges		—			(850	)		—		(850	)
Sale of security		—			(3,400	)		—		(3,400	)
Net change in fair value		—			(4,000	)		1,100		(4,500	)
Fair value at end of period	$	9,700		$	8,600		$	9,700	$	8,600