Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value of Assets and Liabilities Measured on Recurring Basis

The following tables provide the assets and liabilities carried at fair value and measured on a recurring basis:

				Fair Value Measurements at Reporting Date Using:
(in thousands)	June 30, 2014			Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash equivalents	$	340,805		$	340,805	$	—	$	—
Short-term investments	$	644		$	—	$	644	$	—
Liabilities
Contingent consideration	$	(6,062	)	$	—	$	—	$	(6,062	)
Deferred compensation	$	(711	)	$	—	$	—	$	(711	)

				Fair Value Measurements at Reporting Date Using:
(in thousands)	December 31, 2013			Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash equivalents	$	303,138		$	303,138	$	—	$	—
Short-term investments	$	500		$	—	$	500	$	—
Liabilities
Contingent consideration	$	(7,389	)	$	—	$	—	$	(7,389	)
Deferred compensation	$	(704	)	$	—	$	—	$	(704	)

Changes in Level 3 Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs

The following tables present the changes in the Company’s Level 3 liabilities that are measured at fair value on a recurring basis during the three and six months ended June 30, 2014 and 2013:

	Fair Value Measurement Using Significant Unobservable Inputs
(in thousands)	Contingent Consideration			Deferred Compensation
Balance as of January 1, 2014	$	7,389		$	704
Contingent payment	(1,578		)	—
Interest expense and foreign exchange activity included in earnings	164			3
Balance as of March 31, 2014	$	5,975		$	707
Interest expense and foreign exchange activity included in earnings	87			4
Balance as of June 30, 2014	$	6,062		$	711

	Fair Value Measurement Using Significant Unobservable Inputs
(in thousands)	Contingent Consideration		Deferred Compensation
Balance as of January 1, 2013	$	6,436	$	1,394
Interest expense included in earnings	31		6
Balance as of March 31, 2013	$	6,467	$	1,400
EVEN contingent consideration	3,597		—
Interest expense and foreign exchange activity included in earnings	134		7
Balance as of June 30, 2013	$	10,198	$	1,407