Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jul. 31, 2017

Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income consisted of the following (in thousands):

	Currency Translation Adjustments		Available-for-sale securities		Hedging Contracts			Total
Balance, January 31, 2017	$	76,569	$	197	$	14		$	76,780
Other comprehensive income before    reclassifications		9,108		1		31			9,140
Amounts reclassified from accumulated other    comprehensive income (1)		—		—		(442	)		(442)
Net current-period other comprehensive income / (loss)		9,108		1		(411	)		8,698
As of July 31, 2017	$	85,677	$	198	$	(397	)	$	85,478

	Currency Translation Adjustments		Available-for-sale securities		Hedging Contracts			Total
Balance, January 31, 2016	$	68,265	$	189	$	51		$	68,505
Other comprehensive income before    reclassifications		14,832		2		153			14,987
Amounts reclassified from accumulated other    comprehensive income (1)		—		—		(79	)		(79	)
Net current-period other comprehensive income		14,832		2		74			14,908
As of July 31, 2016	$	83,097	$	191	$	125		$	83,413

(1) Amounts reclassified to earnings in the Consolidated Statements of Operations.