Marketable Securities

9 Months Ended

Sep. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable Securities

The following tables summarize the Company's investment in marketable securities:

	Common Stock				Preferred Stock				Total Available-for-Sale Securities
As of September 30, 2012:
Fair value	$	573			$	8,774			$	9,347
Amortized cost basis	1,472				11,472				12,944
Total other-than-temporary impairment recognized	(972		)		(9,665		)		(10,637		)
Adjusted cost basis	500				1,807				2,307
Net gains in accumulated other comprehensive income (OCI)	90				6,967				7,057
Net losses in accumulated OCI	(17		)	(a)	—				(17		)
As of December 31, 2011:
Fair value	$	11,550			$	18,835			$	30,385
Amortized cost basis	28,997				38,242				67,239
Total other-than-temporary impairment recognized	(23,889		)		(31,308		)		(55,197		)
Adjusted cost basis	5,108				6,934				12,042
Net gains in accumulated OCI	6,615				11,942				18,557
Net losses in accumulated OCI	(173		)	(b)	(41		)	(c)	(214		)

(a) This amount represents the gross unrealized losses of one common stock security with a fair value of $402 as of September 30, 2012. This security had been in a continuous unrealized loss position for less than 12 months as of September 30, 2012.

(b) This amount represents the gross unrealized losses of one common stock security with a fair value of $765 as of December 31, 2011. This security had been in a continuous unrealized loss position for less than 12 months as of December 31, 2011.

(c) This amount represents the gross unrealized losses of one preferred stock security with a fair value of $130 as of December 31, 2011. This security had been in a continuous unrealized loss position for less than 12 months as of December 31, 2011.

The following table summarizes activity related to the Company's marketable securities:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2012		2011			2012		2011
Net unrealized OCI gain (loss)	$	1,426	$	(6,240	)	$	5,070	$	(3,843	)
Net gain on sales and redemptions of securities	$	9,108	$	—		$	16,373	$	277