Investments (Tables)

6 Months Ended

Jun. 30, 2013

Investments [Abstract]

Amortized Cost and Fair Value of Investments

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

	June 30, 2013						December 31, 2012
	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	$	(250	)	$	6,900
Equity(1)		2,000		600		2,600		2,000		300			2,300
Total	$	9,150	$	650	$	9,800	$	9,150	$	50		$	9,200

⁽¹⁾  As of June 30, 2013 and December 31, 2012, 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					Six Months Ended
	June 30,					June 30,
	2013		2012			2013		2012
Debt Securities
Fair value at beginning of period	$	6,900	$	6,100		$	6,900	$	6,100
Change in net unrealized gain (loss)		300		600			300		600
Fair value at end of period	$	7,200	$	6,700		$	7,200	$	6,700
Equity Securities
Fair value at beginning of period	$	2,600	$	2,700		$	2,300	$	2,400
Change in net unrealized gain (loss)		—		(100	)		300		200
Fair value at end of period	$	2,600	$	2,600		$	2,600	$	2,600
Total
Fair value at beginning of period	$	9,500	$	8,800		$	9,200	$	8,500
Change in net unrealized gain (loss)		300		500			600		800
Fair value at end of period	$	9,800	$	9,300		$	9,800	$	9,300