Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Fair Value Hierarchy of Financial Assets Measured at Fair Value on Recurring Basis

The fair value hierarchy of Actua’s financial assets measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013 was as follows (in thousands):

			Valuation
	Asset (liability) at		Technique
	September 30, 2014		(Approach)	Level 1		Level 2		Level 3
Cash equivalents (money market accounts and
commercial paper investments)	$	285,459	Market	$	285,459	$	-	$	-
	$	285,459		$	285,459	$	-	$	-

			Valuation
	Asset (liability) at		Technique
	December 31, 2013		(Approach)	Level 1		Level 2		Level 3
Cash equivalents (money market accounts)	$	325,652	Market	$	325,652	$	-	$	-
	$	325,652		$	325,652	$	-	$	-