4. Goodwill

Changes in the carrying amount of goodwill attributable to each reporting unit with goodwill balances during the years ended December 31, 2012 and 2011, were as follows (in thousands):


	Americas			EMEA			Asia/ Pacific			Total
Gross Balance prior to December 31, 2010	$	187,362			44,250			19,755		$	251,367
Total impairment prior to December 31, 2010		(47,432	)		—			—			(47,432	)

Balance, December 31, 2010		139,930			44,250			19,755			203,935
Goodwill from acquisitions (1)		11,380			—			—			11,380
Foreign currency translation adjustments		(144	)		(638	)		(389	)		(1,171	)

Balance, December 31, 2011	$	151,166		$	43,612		$	19,366		$	214,144
Goodwill from acquisitions (2)		117,669			111,865			52,393			281,927
Foreign currency translation adjustments		(45	)		3,176			1,939			5,070

Balance, December 31, 2012	$	268,790		$	158,653		$	73,698		$	501,141

(1)	Addition relates to the goodwill acquired in the acquisition of ISD as discussed in Note 2.

(2)	Addition relates to the goodwill acquired in the acquisitions of S1, North Data and Distra as discussed in Note 2. The purchase price allocation for Distra is preliminary as of December 31, 2012 and accordingly is subject to future changes during the maximum one-year allocation period.