Fair Value Measurement (Tables)

3 Months Ended

Apr. 30, 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 April 30, 2014:

	Fair Value			Level 1		Level 2		Level 3
Contingent consideration	$	(3,177	)	$	—	$	—	$	(3,177	)

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 April 30, 2014 encompasses the following significant unobservable inputs:

Unobservable Inputs	Range
Total estimated contingent consideration	$0	-	$3,948
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
Payments	(1,424		)
Interest accretion	30
Balance as of April 30, 2014	$	3,177

Schedule of notes payable

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

As of	April 30, 2014		January 31, 2014
Fair value of notes payable	$	306,881	$	306,535
Carrying value of notes payable	$	225,755	$	224,261