Fair Value Measurement (Tables)

6 Months Ended

Jul. 31, 2014

Fair Value Disclosures [Abstract]

Financial assets and liabilities measured at fair value on a recurring basis

The following table presents information about financial assets and liabilities measured at fair value on a recurring basis as of July 31, 2014:

	Fair Value			Level 1		Level 2		Level 3
Contingent consideration	$	(4,561	)	$	—	$	—	$	(4,561	)

The following table presents information about financial assets and liabilities measured at fair value on a recurring basis as of January 31, 2014:

	Fair Value			Level 1		Level 2		Level 3
Bank certificates of deposit	$	3,990		$	—	$	3,990	$	—
Contingent consideration	(4,571		)	—		—		(4,571		)
Total	$	(581	)	$	—	$	3,990	$	(4,571	)

Significant unobservable inputs

The fair value measurement of our contingent consideration as of July 31, 2014 encompasses the following significant unobservable inputs:

Unobservable Inputs	Range
Total estimated contingent consideration	$0	-	$5,187
Discount rate	9.5%	-	16.0%
Timing of cash flows (in years)	0	-	4

Summary of level 3 activity

The following table summarizes contingent consideration activity:

Balance as of January 31, 2014	$	4,571
New contingent consideration	1,450
Payments	(1,514		)
Interest accretion	54
Balance as of July 31, 2014	$	4,561

Schedule of notes payable

The following table summarizes the fair value and carrying value of notes payable:

As of	July 31, 2014		January 31, 2014
Fair value of notes payable	$	294,856	$	306,535
Carrying value of notes payable	$	227,276	$	224,261