Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Aug. 31, 2019	Aug. 31, 2018		Aug. 31, 2019	Aug. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 13,557	$ 14,390	[1]	$ 31,140	$ 41,026	[1],[2]
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(1,961)	(1,950)	[1]	(2,512)	(7,137)	[1]
Unrealized loss on hedging activity, net of tax benefit of $820 for the third quarter and first nine months of 2019	(2,528)	0		(2,528)	0
Unrealized gain on investments, net of tax provision of $6 and $54 for the third quarter and first nine months of 2019, respectively, and $18 and $57 for the third quarter and first nine months of 2018, respectively	57	52	[1]	194	24	[1]
Total other comprehensive loss, net of tax	(4,432)	(1,898)	[1]	(4,846)	(7,113)	[1]
Comprehensive income	$ 9,125	$ 12,492	[1]	$ 26,294	$ 33,913	[1]

[1] The Company adopted ASC 606 effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Basis of Presentation for further information.

[2] The Company adopted ASC 606 effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Basis of Presentation for further information.