Cash, Cash Equivalents and Investments - Summary Of Cash, Cash Equivalents And Available-For-Sale Investments (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Nov. 30, 2020
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 107,698	$ 97,990
Unrealized Gains	71	99
Unrealized Losses	0	0
Total Amortized Cost Basis	114,300	105,896
Total Fair Value	114,371	105,995
U.S. treasury bonds
Cash, Cash Equivalents and Investments [Line Items]
Amortized Cost Basis	4,493	4,993
Unrealized Gains	42	58
Unrealized Losses	0	0
Fair Value	4,535	5,051
Corporate bonds
Cash, Cash Equivalents and Investments [Line Items]
Amortized Cost Basis	2,109	2,913
Unrealized Gains	29	41
Unrealized Losses	0	0
Fair Value	2,138	2,954
Cash
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	87,403	79,026
Money market funds
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 20,295	$ 18,964