Shareholders' Equity (Tables)

6 Months Ended

Jul. 31, 2019

Shareholders Equity [Abstract]

Class of Treasury Stock

The Company’s common share issuance activity for the six months ended July 31, 2019 is summarized as follows:  

	Shares		Weighted-average price per share
Treasury stock balance at January 31, 2019	22,305,464		$	46.53
Shares of treasury stock repurchased under share repurchase program	1,179,176		99.81
Shares of treasury stock reissued for equity incentive plans	(196,220	)
Treasury stock balance at July 31, 2019	23,288,420		$	49.22

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following tables summarize the change in the components of AOCI for the three and six months ended July 31, 2019 and 2018:

	Foreign currency translation adjustment, net of taxes			Unrealized gains (losses) on cash flow hedges, net of taxes			Total
(in thousands)
Balance at April 30, 2019	$	3,263		$	(211	)	$	3,052
Other comprehensive income (loss) before reclassification	(31,822		)	720			(31,102		)
Reclassification of (gain) loss from AOCI into income	—			(451		)	(451		)
Balance at July 31, 2019	$	(28,559	)	$	58		$	(28,501	)

	Foreign currency translation adjustment, net of taxes			Unrealized gains (losses) on cash flow hedges, net of taxes		Total
(in thousands)
Balance at April 30, 2018	$	200,040		$	—	$	200,040
Other comprehensive income (loss) before reclassification	(96,982		)	—		(96,982		)
Reclassification of (gain) loss from AOCI into income	(5,073		)	—		(5,073		)
Balance at July 31, 2018	$	97,985		$	—	$	97,985

	Foreign currency translation adjustment, net of taxes			Unrealized gains (losses) on cash flow hedges, net of taxes			Total
(in thousands)
Balance at January 31, 2019	$	43,786		$	—		$	43,786
Other comprehensive income (loss) before reclassification	(72,345		)	145			(72,200		)
Reclassification of (gain) loss from AOCI into income	—			(87		)	(87		)
Balance at July 31, 2019	$	(28,559	)	$	58		$	(28,501	)

	Foreign currency translation adjustment, net of taxes			Unrealized gains (losses) on cash flow hedges, net of taxes		Total
(in thousands)
Balance at January 31, 2018	$	288,292		$	—	$	288,292
Other comprehensive income (loss) before reclassification	(185,234		)	—		(185,234		)
Reclassification of (gain) loss from AOCI into income	(5,073		)	—		(5,073		)
Balance at July 31, 2018	$	97,985		$	—	$	97,985