Income Taxes (Reconciliation of Expected Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
Increase (decrease) resulting from
Income tax expense computed at statutory rate	$ (146,023)	$ (76,449)	$ (73,117)
Income tax benefit computed at statutory rate (percent)	(21.00%)	(21.00%)	(21.00%)
Tax credits	$ 49,522	$ 18,734	$ 6,595
Tax credits (percent)	7.10%	5.10%	1.90%
Depreciation and amortization	$ 5,872	$ 9,910	$ 4,276
Depreciation and amortization (Percent)	0.80%	2.70%	1.20%
Valuation allowance for deferred tax assets	$ 600	$ 1,200	$ 4,400
Valuation allowance for deferred tax assets (percent)	0.10%	0.30%	1.30%
Non-deductible compensation	$ (9,241)	$ (4,812)	$ (4,653)
Non-deductible compensation (percent)	(1.30%)	(1.30%)	(1.30%)
State taxes, net of federal income tax benefit	$ (31,378)	$ (16,395)	$ (20,927)
State taxes, net of federal income tax benefit (percent)	(4.50%)	(4.40%)	(6.00%)
NOL reconciliation	$ 0	$ 0	$ 3,111
NOL reconciliation (percent)	0.00%	0.00%	0.90%
Other, net	$ 48	$ 12	$ 915
Other, net (percent)	0.00%	0.00%	0.20%
Income tax expense	$ (130,600)	$ (67,800)	$ (79,400)
Income tax expense (percent)	(18.80%)	(18.60%)	(22.80%)

Effective Income Tax Rate Reconciliation, Nondeductible Expense, Compensation, Amount

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Effective Income tax reconciliation change in net operating loss.

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Increase decrease resulting from other reconciling items.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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