Fair Value Measurement (Tables)

12 Months Ended

Jan. 31, 2017

Fair Value, Assets & Liabilities Measured on Recurring and Nonrecurring Basis

Financial 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 January 31, 2017:

	Fair Value			Level 1		Level 2		Level 3
Cash equivalents:
Money market funds	$	286,000		$	286,000	$	—	$	—
Bank time deposits	71,339			—		71,339		—
Total cash equivalents	357,339			286,000		71,339		—
Contingent consideration	(2,385		)	—		—		(2,385		)
Total	$	354,954		$	286,000	$	71,339	$	(2,385	)

The following table presents information about financial assets and liabilities measured at fair value on a recurring basis as of January 31, 2016:

	Fair Value			Level 1		Level 2		Level 3
Cash equivalents:
Money market funds	$	205,000		$	205,000	$	—	$	—
Bank time deposits	55,056			—		55,056		—
Total cash equivalents	260,056			205,000		55,056		—
Contingent consideration	(3,749		)	—		—		(3,749		)
Total	$	256,307		$	205,000	$	55,056	$	(3,749	)

Schedule of contingent consideration

The following table summarizes the total recorded contingent consideration:

As of January 31,	2017		2016
Contingent consideration, short-term	$	836	$	1,460
Contingent consideration, long-term	1,549		2,289
Total contingent consideration	$	2,385	$	3,749

Significant unobservable inputs

The fair value measurement of our contingent consideration as of January 31, 2017 encompasses the following significant unobservable inputs:

Unobservable Inputs	Range
Total estimated contingent consideration	$836	-	$2,935
Discount rate	9.5%	-	15.0%
Timing of cash flows (in years)	0	-	2

Summary of level 3 activity

The following table summarizes contingent consideration activity:

Balance as of January 31, 2015	$	4,563
Payments	(1,525		)
Changes in fair value	586
Interest accretion	125
Balance as of January 31, 2016	$	3,749
Payments	(1,475		)
Interest accretion	111
Balance as of January 31, 2017	$	2,385

Schedule of notes payable

The following table summarizes the fair value and carrying value of our 4.00% Convertible Subordinated Debentures (4.00% Debentures):

As of January 31,	2017		2016
Fair value of 4.00% Debentures	$	470,965	$	255,487
Carrying value of 4.00% Debentures	$	242,921	$	234,888