The following table represents the changes in the acquisition-related contingent consideration liability during the three and six months ended June 30, 2014 and 2013:


	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
Beginning balance	$	6,903		$	16,296		$	13,329		$	16,426
Acquisition ⁽¹⁾		—			5,377			(4,495	)		4,528
Accretion of acquisition-related contingent consideration		255			764			535			1,495
Remeasurement of acquisition-related contingent consideration		(261	)		(8,216	)		(2,383	)		(8,216	)
Payments		(314	)		(235	)		(378	)		(235	)
Unrealized losses related to currency translation in other comprehensive income		18			(701	)		(7	)		(713	)

Ending balance	$	6,601		$	13,285		$	6,601		$	13,285

⁽¹⁾	Includes adjustments during the purchase price allocation period.