Goodwill (Tables)

3 Months Ended

Mar. 31, 2013

	Region One			Region Two			Region Three			Region Four			Region Five			Total
Balance as of December 31, 2012	$	191,941		$	31,840		$	65,770		$	62,052		$	83,519		$	435,122
Contingent payments related to acquisitions							(6		)							(6		)
Adjustment to purchase price allocation (1)	(272		)	(61		)	(61		)	(85		)	(172		)	(651		)
Foreign currency translation				(122		)										(122		)
Balance as of March 31, 2013	$	191,669		$	31,657		$	65,703		$	61,967		$	83,347		$	434,343

(1) Primarily related to fair value adjustments on accounts receivable.

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.