Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2017	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Income tax benefit computed at the statutory U.S. federal income tax rate and income tax benefit (expense) provided in the consolidated statements of operations
Income tax benefit computed at statutory rate	$ (101,499)			$ (52,260)	$ (44,462)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		(35.00%)		(35.00%)	(35.00%)
Increase (decrease) resulting from
Valuation allowance for deferred tax assets	1,200			$ 12,982	$ 3,356
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent		0.40%		8.70%	2.60%
Tax credits	6,227			$ 4,447	$ 6,926
Effective Income Tax Rate Reconciliation, Tax Credit, Percent		2.20%		3.00%	5.50%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation and Amortization, Amount	362			$ 1,842	$ 3,183
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent		0.10%		1.20%	2.50%
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Amount	74			$ (86)	$ 1,617
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Percent		0.00%		(0.10%)	1.30%
NOLs reconciliation	(2,210)			$ (3,691)	$ (3,379)
Effective Income Tax Reconciliation Change Net Operating Loss, Percentage		(0.80%)		(2.50%)	(2.70%)
State taxes, net of federal income tax benefit	(14,450)			$ (7,511)	$ (5,155)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent		(4.90%)		(5.00%)	(4.10%)
Other, net	896			$ 577	$ (4,486)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		0.30%		0.40%	(3.50%)
Income tax benefit	(109,400)			$ (43,700)	$ (42,400)
Effective Income Tax Rate Reconciliation, Percent		(37.70%)	(35.00%)	(29.30%)	(33.40%)
Reconciliation of the beginning and ending balances of the gross unrecognized benefits
Balance at beginning of year	56			$ 56	$ 206
Reductions due to lapse of statute of limitations	0			0	(150)
Balance at the end of year	$ 56			$ 56	$ 56