Investments (Tables)

12 Months Ended

Dec. 31, 2012

Investments [Abstract]

Schedule Of Debt Securities By Contractual Maturity Date

The following table summarizes j2 Global’s debt securities designated as available-for-sale, classified by the contractual maturity date of the security (in thousands):

	December 31, 2012		December 31, 2011
Due within 1 year	$	46,681	$	30,512
Due within more than 1 year but less than 5 years	17,209		38,847
Due within more than 5 years but less than 10 years	—		—
Due 10 years or after	2,633		4,230
Total	$	66,523	$	73,589

Schedule Of Available-For-Sale And Trading Securities

The following table summarizes the Company’s investments designated as trading and available-for-sale (in thousands):

	December 31, 2012		December 31, 2011
Trading	$	3	$	2
Available-for-sale	90,017		73,589
Total	$	90,020	$	73,591

Summary Of Gross Unrealized Gains And Losses And Fair Values

The following table summarizes the gross unrealized gains and losses and fair values for investments as of December 31, 2012 and December 31, 2011 aggregated by major security type (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
December 31, 2012
Debt Securities	$	66,541	$	149	$	(167	)	$	66,523
Equity Securities	20,610		3,251		(367		)	23,494
Total	$	87,151	$	3,400	$	(534	)	$	90,017
December 31, 2011
Debt Securities	$	73,731	$	99	$	(241	)	$	73,589
Total	$	73,731	$	99	$	(241	)	$	73,589