Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2020	Aug. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 23,977	$ 13,557	$ 62,061	$ 31,140
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	4,564	(1,961)	374	(2,512)
Unrealized gain (loss) on hedging activity, net of tax provision of $166 and tax benefit of $1,302 for the third quarter and first nine months of 2020, respectively, and of tax provision of $820 for the third quarter and first nine months of 2019	58	(2,528)	(4,106)	(2,528)
Unrealized gain on investments, net of tax benefit of $42 and tax provision of $3 for the third quarter and first nine months of 2020, respectively, and $6 and $54 for the third quarter and first nine months of 2019, respectively	21	57	105	194
Total other comprehensive income (loss), net of tax	4,643	(4,432)	(3,627)	(4,846)
Comprehensive income	$ 28,620	$ 9,125	$ 58,434	$ 26,294