Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair value of assets and liabilities on a recurring basis

	Balance at March 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
ASSETS
Cash and cash equivalents (1)	$	103,145	$	103,145	$	—	$	—
Restricted cash	4,351		4,351		—		—
Marketable securities (2)	10,656		10,656		—		—
	$	118,152	$	118,152	$	—	$	—
LIABILITIES
Contingent consideration related to acquisitions	$	14,913	—		$	—	$	14,913
	$	14,913	$	—	$	—	$	14,913

	Balance at March 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
ASSETS
Cash and cash equivalents (1)	$	105,999	$	105,999	$	—	$	—
Restricted cash	5,488		5,488		—		—
Marketable securities (2)	12,012		12,012		—		—
	$	123,499	$	123,499	$	—	$	—
LIABILITIES
Contingent consideration related to acquisitions	$	5,336	$	—	$	—	$	5,336
	$	5,336	$	—	$	—	$	5,336

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(1) Cash and cash equivalents consists of money market funds.

(2) Marketable securities consists of fixed-income securities, including certificates of deposit and municipal securities.

Company's assets and liabilities measured at fair value using significant unobservable inputs (Level 3)

The following table presents activity in the Company's financial assets and liabilities measured at fair value using significant unobservable inputs (Level 3), as of March 31, 2014:

	Total Liabilities
Balance at March 31, 2012	$	6,556
Acquisitions (Note 5)	2,862
Earnout payments (1)	(5,354		)
Fair value adjustments	1,272
Balance at March 31, 2013	$	5,336
Acquisitions (Note 5)	13,307
Earnout payments (2)	(3,831		)
Fair value adjustments	101
Balance at March 31, 2014	$	14,913

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(1) Comprised of $2,354 in cash and $3,000 in common stock

(2) Comprised of cash payments only