FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities

The following tables present the Company’s financial assets and liabilities measured on a recurring basis using the fair value hierarchy at June 30, 2016 and March 31, 2016 (in thousands):

	Fair Value Measurements at
	June 30, 2016
	Level 1		Level 2			Level 3			Total
ASSETS:
Cash and cash equivalents	$	210,870	$	—		$	—		$	210,870
U.S. government and municipal obligations	25,611		71,727			—			97,338
Commercial paper	—		26,714			—			26,714
Derivative financial instruments	—		116			—			116
Contingently returnable consideration	—		—			8,341			$	8,341
	$	236,481	$	98,557		$	8,341		$	343,379
LIABILITIES:
Contingent purchase consideration	$	—	$	—		$	(4,674	)	$	(4,674	)
Derivative financial instruments	—		(93		)	—			(93		)
	$	—	$	(93	)	$	(4,674	)	$	(4,767	)

	Fair Value Measurements at
	March 31, 2016
	Level 1		Level 2			Level 3			Total
ASSETS:
Cash and cash equivalents	$	210,711	$	—		$	—		$	210,711
U.S. government and municipal obligations	41,116		82,212			—			123,328
Commercial paper	—		16,172			—			16,172
Corporate bonds	1,864		—			—			1,864
Derivative financial instruments	—		191			—			191
Contingently returnable consideration						16,131			16,131
	$	253,691	$	98,575		$	16,131		$	368,397
LIABILITIES:
Contingent purchase consideration	$	—	$	—		$	(7,293	)	$	(7,293	)
Derivative financial instruments	—		(158		)	—			(158		)
	$	—	$	(158	)	$	(7,293	)	$	(7,451	)

Schedule of Reconciliation of Changes in Fair Value of Level III Financial Assets

The following table sets forth a reconciliation of changes in the fair value of the Company’s Level 3 financial assets and liabilities for the three months ended June 30, 2016 (in thousands):

	Contingent Purchase Consideration			Contingently Returnable Consideration
Balance at beginning of period	$	(7,293	)	$	16,131
Increase in fair value and accretion expense (included within research and development expense)	(38		)	—
Payment received	—			(7,790		)
Payments made	2,657			—
Balance at end of period	$	(4,674	)	$	8,341